./Ultimate.py --spec /mnt/thread-witnesses/replication/bench/thread-witnesses/st-lit/properties/unreach-call.prp --file /mnt/thread-witnesses/replication/bench/thread-witnesses/st-lit/prec/mine-tutorial-ex4.7.i --full-output --architecture 64bit


--------------------------------------------------------------------------------


Checking for ERROR reachability
Using default analysis
Version 2329fc70
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/mnt/thread-witnesses/replication/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /mnt/thread-witnesses/replication/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /mnt/thread-witnesses/replication/UAutomizer-linux/data -tc /mnt/thread-witnesses/replication/UAutomizer-linux/config/AutomizerReach.xml -i /mnt/thread-witnesses/replication/bench/thread-witnesses/st-lit/prec/mine-tutorial-ex4.7.i -s /mnt/thread-witnesses/replication/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /mnt/thread-witnesses/replication/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 51cb0ed4f3a380cdd7ae4c472320ddbca58dabad2572a56f851358e7417ed040
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-2329fc7
[2023-01-31 08:39:12,521 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-01-31 08:39:12,536 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2023-01-31 08:39:12,573 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-01-31 08:39:12,574 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-01-31 08:39:12,579 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-01-31 08:39:12,580 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-01-31 08:39:12,582 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2023-01-31 08:39:12,583 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-01-31 08:39:12,600 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-01-31 08:39:12,602 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2023-01-31 08:39:12,606 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-01-31 08:39:12,606 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-01-31 08:39:12,612 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-01-31 08:39:12,615 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-01-31 08:39:12,616 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-01-31 08:39:12,617 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-01-31 08:39:12,619 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-01-31 08:39:12,620 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-01-31 08:39:12,624 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2023-01-31 08:39:12,626 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-01-31 08:39:12,627 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-01-31 08:39:12,628 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-01-31 08:39:12,629 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-01-31 08:39:12,645 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-01-31 08:39:12,646 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-01-31 08:39:12,646 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-01-31 08:39:12,647 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-01-31 08:39:12,648 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-01-31 08:39:12,649 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-01-31 08:39:12,649 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-01-31 08:39:12,650 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-01-31 08:39:12,651 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-01-31 08:39:12,652 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-01-31 08:39:12,653 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-01-31 08:39:12,653 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2023-01-31 08:39:12,653 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-01-31 08:39:12,654 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-01-31 08:39:12,654 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2023-01-31 08:39:12,654 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2023-01-31 08:39:12,655 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-01-31 08:39:12,656 INFO  L101        SettingsManager]: Beginning loading settings from /mnt/thread-witnesses/replication/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2023-01-31 08:39:12,689 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-01-31 08:39:12,689 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-01-31 08:39:12,689 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-01-31 08:39:12,690 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-01-31 08:39:12,690 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-01-31 08:39:12,690 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-01-31 08:39:12,691 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-01-31 08:39:12,691 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-01-31 08:39:12,703 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-01-31 08:39:12,704 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-01-31 08:39:12,705 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-01-31 08:39:12,705 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-01-31 08:39:12,705 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-01-31 08:39:12,705 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-01-31 08:39:12,705 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-01-31 08:39:12,706 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-01-31 08:39:12,706 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-01-31 08:39:12,706 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-01-31 08:39:12,707 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-01-31 08:39:12,707 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-01-31 08:39:12,707 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-01-31 08:39:12,707 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-01-31 08:39:12,708 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-01-31 08:39:12,708 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-01-31 08:39:12,708 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-01-31 08:39:12,708 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-01-31 08:39:12,709 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-01-31 08:39:12,709 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-01-31 08:39:12,709 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-01-31 08:39:12,709 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-01-31 08:39:12,710 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-01-31 08:39:12,710 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-01-31 08:39:12,711 INFO  L138        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/mnt/thread-witnesses/replication/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /mnt/thread-witnesses/replication/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51cb0ed4f3a380cdd7ae4c472320ddbca58dabad2572a56f851358e7417ed040
[2023-01-31 08:39:13,056 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-01-31 08:39:13,080 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-01-31 08:39:13,082 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-01-31 08:39:13,083 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-01-31 08:39:13,083 INFO  L275        PluginConnector]: CDTParser initialized
[2023-01-31 08:39:13,084 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /mnt/thread-witnesses/replication/bench/thread-witnesses/st-lit/prec/mine-tutorial-ex4.7.i
[2023-01-31 08:39:14,726 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-01-31 08:39:14,958 INFO  L351              CDTParser]: Found 1 translation units.
[2023-01-31 08:39:14,959 INFO  L172              CDTParser]: Scanning /mnt/thread-witnesses/replication/bench/thread-witnesses/st-lit/prec/mine-tutorial-ex4.7.i
[2023-01-31 08:39:14,963 INFO  L394              CDTParser]: About to delete temporary CDT project at /mnt/thread-witnesses/replication/UAutomizer-linux/data/89b21d7a5/f3eb6a917327475ea87fffe0ed26c0e4/FLAGd804fba82
[2023-01-31 08:39:14,983 INFO  L402              CDTParser]: Successfully deleted /mnt/thread-witnesses/replication/UAutomizer-linux/data/89b21d7a5/f3eb6a917327475ea87fffe0ed26c0e4
[2023-01-31 08:39:14,989 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-01-31 08:39:14,996 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-01-31 08:39:15,007 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-01-31 08:39:15,008 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-01-31 08:39:15,010 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-01-31 08:39:15,010 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 08:39:14" (1/1) ...
[2023-01-31 08:39:15,013 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f5d52d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:15, skipping insertion in model container
[2023-01-31 08:39:15,013 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 08:39:14" (1/1) ...
[2023-01-31 08:39:15,031 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-01-31 08:39:15,057 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-01-31 08:39:15,218 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /mnt/thread-witnesses/replication/bench/thread-witnesses/st-lit/prec/mine-tutorial-ex4.7.i[812,825]
[2023-01-31 08:39:15,243 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-01-31 08:39:15,261 INFO  L203         MainTranslator]: Completed pre-run
[2023-01-31 08:39:15,283 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /mnt/thread-witnesses/replication/bench/thread-witnesses/st-lit/prec/mine-tutorial-ex4.7.i[812,825]
[2023-01-31 08:39:15,297 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-01-31 08:39:15,307 INFO  L208         MainTranslator]: Completed translation
[2023-01-31 08:39:15,311 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:15 WrapperNode
[2023-01-31 08:39:15,311 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-01-31 08:39:15,312 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-01-31 08:39:15,312 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-01-31 08:39:15,313 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2023-01-31 08:39:15,318 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:15" (1/1) ...
[2023-01-31 08:39:15,335 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:15" (1/1) ...
[2023-01-31 08:39:15,349 INFO  L138                Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28
[2023-01-31 08:39:15,350 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-01-31 08:39:15,350 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-01-31 08:39:15,351 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-01-31 08:39:15,351 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-01-31 08:39:15,357 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:15" (1/1) ...
[2023-01-31 08:39:15,357 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:15" (1/1) ...
[2023-01-31 08:39:15,359 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:15" (1/1) ...
[2023-01-31 08:39:15,359 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:15" (1/1) ...
[2023-01-31 08:39:15,370 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:15" (1/1) ...
[2023-01-31 08:39:15,376 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:15" (1/1) ...
[2023-01-31 08:39:15,380 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:15" (1/1) ...
[2023-01-31 08:39:15,381 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:15" (1/1) ...
[2023-01-31 08:39:15,385 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-01-31 08:39:15,386 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-01-31 08:39:15,386 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-01-31 08:39:15,387 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-01-31 08:39:15,388 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:15" (1/1) ...
[2023-01-31 08:39:15,393 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-01-31 08:39:15,404 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/thread-witnesses/replication/UAutomizer-linux/z3
[2023-01-31 08:39:15,425 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /mnt/thread-witnesses/replication/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-01-31 08:39:15,450 INFO  L327       MonitoredProcess]: [MP /mnt/thread-witnesses/replication/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-01-31 08:39:15,491 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-01-31 08:39:15,492 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-01-31 08:39:15,492 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-01-31 08:39:15,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-01-31 08:39:15,492 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2023-01-31 08:39:15,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2023-01-31 08:39:15,563 INFO  L235             CfgBuilder]: Building ICFG
[2023-01-31 08:39:15,564 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-01-31 08:39:15,714 INFO  L276             CfgBuilder]: Performing block encoding
[2023-01-31 08:39:15,720 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-01-31 08:39:15,723 INFO  L300             CfgBuilder]: Removed 1 assume(true) statements.
[2023-01-31 08:39:15,725 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:39:15 BoogieIcfgContainer
[2023-01-31 08:39:15,725 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-01-31 08:39:15,742 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-01-31 08:39:15,742 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-01-31 08:39:15,745 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-01-31 08:39:15,754 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 08:39:14" (1/3) ...
[2023-01-31 08:39:15,755 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462fa2d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 08:39:15, skipping insertion in model container
[2023-01-31 08:39:15,756 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:39:15" (2/3) ...
[2023-01-31 08:39:15,756 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462fa2d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 08:39:15, skipping insertion in model container
[2023-01-31 08:39:15,756 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:39:15" (3/3) ...
[2023-01-31 08:39:15,757 INFO  L112   eAbstractionObserver]: Analyzing ICFG mine-tutorial-ex4.7.i
[2023-01-31 08:39:15,770 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-01-31 08:39:15,777 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-01-31 08:39:15,835 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-01-31 08:39:15,846 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2846272c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-01-31 08:39:15,847 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-01-31 08:39:15,850 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 17 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-01-31 08:39:15,862 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-01-31 08:39:15,862 INFO  L187           NwaCegarLoop]: Found error trace
[2023-01-31 08:39:15,863 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-01-31 08:39:15,864 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-01-31 08:39:15,869 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-01-31 08:39:15,869 INFO  L85        PathProgramCache]: Analyzing trace with hash 1811571039, now seen corresponding path program 1 times
[2023-01-31 08:39:15,880 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-01-31 08:39:15,881 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226341844]
[2023-01-31 08:39:15,881 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-01-31 08:39:15,882 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-01-31 08:39:16,068 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-31 08:39:16,339 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-01-31 08:39:16,339 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-01-31 08:39:16,351 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226341844]
[2023-01-31 08:39:16,352 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226341844] provided 1 perfect and 0 imperfect interpolant sequences
[2023-01-31 08:39:16,352 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-01-31 08:39:16,352 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-01-31 08:39:16,354 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455201225]
[2023-01-31 08:39:16,354 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-01-31 08:39:16,357 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-01-31 08:39:16,359 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-01-31 08:39:16,395 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-01-31 08:39:16,410 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-01-31 08:39:16,425 INFO  L87              Difference]: Start difference. First operand  has 17 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand  has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-01-31 08:39:16,558 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-01-31 08:39:16,558 INFO  L93              Difference]: Finished difference Result 36 states and 48 transitions.
[2023-01-31 08:39:16,559 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-01-31 08:39:16,560 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2023-01-31 08:39:16,560 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-01-31 08:39:16,576 INFO  L225             Difference]: With dead ends: 36
[2023-01-31 08:39:16,589 INFO  L226             Difference]: Without dead ends: 17
[2023-01-31 08:39:16,592 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-01-31 08:39:16,595 INFO  L413           NwaCegarLoop]: 14 mSDtfsCounter, 12 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-01-31 08:39:16,598 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 41 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-01-31 08:39:16,626 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2023-01-31 08:39:16,645 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17.
[2023-01-31 08:39:16,651 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-01-31 08:39:16,652 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions.
[2023-01-31 08:39:16,653 INFO  L78                 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 7
[2023-01-31 08:39:16,654 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-01-31 08:39:16,654 INFO  L495      AbstractCegarLoop]: Abstraction has 17 states and 19 transitions.
[2023-01-31 08:39:16,655 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-01-31 08:39:16,655 INFO  L276                IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions.
[2023-01-31 08:39:16,656 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2023-01-31 08:39:16,656 INFO  L187           NwaCegarLoop]: Found error trace
[2023-01-31 08:39:16,660 INFO  L195           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-01-31 08:39:16,660 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-01-31 08:39:16,661 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-01-31 08:39:16,669 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-01-31 08:39:16,669 INFO  L85        PathProgramCache]: Analyzing trace with hash 1007521923, now seen corresponding path program 1 times
[2023-01-31 08:39:16,669 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-01-31 08:39:16,670 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884153466]
[2023-01-31 08:39:16,670 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-01-31 08:39:16,670 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-01-31 08:39:16,679 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-31 08:39:16,869 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2023-01-31 08:39:16,871 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-31 08:39:16,876 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-01-31 08:39:16,886 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-01-31 08:39:16,886 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884153466]
[2023-01-31 08:39:16,887 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884153466] provided 1 perfect and 0 imperfect interpolant sequences
[2023-01-31 08:39:16,887 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-01-31 08:39:16,887 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-01-31 08:39:16,887 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500993024]
[2023-01-31 08:39:16,887 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-01-31 08:39:16,888 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-01-31 08:39:16,889 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-01-31 08:39:16,890 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-01-31 08:39:16,890 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-01-31 08:39:16,900 INFO  L87              Difference]: Start difference. First operand 17 states and 19 transitions. Second operand  has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-01-31 08:39:16,957 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-01-31 08:39:16,958 INFO  L93              Difference]: Finished difference Result 17 states and 19 transitions.
[2023-01-31 08:39:16,958 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-01-31 08:39:16,959 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2023-01-31 08:39:16,959 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-01-31 08:39:16,959 INFO  L225             Difference]: With dead ends: 17
[2023-01-31 08:39:16,959 INFO  L226             Difference]: Without dead ends: 0
[2023-01-31 08:39:16,960 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-01-31 08:39:16,961 INFO  L413           NwaCegarLoop]: 13 mSDtfsCounter, 5 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-01-31 08:39:16,964 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 34 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-01-31 08:39:16,978 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2023-01-31 08:39:16,979 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2023-01-31 08:39:16,979 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-01-31 08:39:16,979 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2023-01-31 08:39:16,979 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12
[2023-01-31 08:39:16,979 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-01-31 08:39:16,979 INFO  L495      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-01-31 08:39:16,980 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-01-31 08:39:16,980 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2023-01-31 08:39:16,981 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2023-01-31 08:39:16,984 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-01-31 08:39:16,985 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-01-31 08:39:16,987 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2023-01-31 08:39:17,015 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2023-01-31 08:39:17,020 INFO  L899   garLoopResultBuilder]: For program point L19(lines 17 25) no Hoare annotation was computed.
[2023-01-31 08:39:17,021 INFO  L899   garLoopResultBuilder]: For program point L17-2(lines 17 25) no Hoare annotation was computed.
[2023-01-31 08:39:17,021 INFO  L899   garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed.
[2023-01-31 08:39:17,021 INFO  L895   garLoopResultBuilder]: At program point main_returnLabel#1(lines 15 27) the Hoare annotation is: (<= 0 |ULTIMATE.start_main_~x~0#1|)
[2023-01-31 08:39:17,021 INFO  L899   garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2023-01-31 08:39:17,022 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2023-01-31 08:39:17,022 INFO  L899   garLoopResultBuilder]: For program point L22(lines 22 23) no Hoare annotation was computed.
[2023-01-31 08:39:17,022 INFO  L895   garLoopResultBuilder]: At program point L20(lines 17 25) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 40))
[2023-01-31 08:39:17,022 INFO  L895   garLoopResultBuilder]: At program point L18(line 18) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 40))
[2023-01-31 08:39:17,026 INFO  L895   garLoopResultBuilder]: At program point L18-1(line 18) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 40))
[2023-01-31 08:39:17,027 INFO  L899   garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed.
[2023-01-31 08:39:17,027 INFO  L899   garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed.
[2023-01-31 08:39:17,027 INFO  L899   garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed.
[2023-01-31 08:39:17,027 INFO  L899   garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(line 13) no Hoare annotation was computed.
[2023-01-31 08:39:17,028 INFO  L902   garLoopResultBuilder]: At program point $Ultimate##0(line 13) the Hoare annotation is: true
[2023-01-31 08:39:17,028 INFO  L899   garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed.
[2023-01-31 08:39:17,030 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2023-01-31 08:39:17,036 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2023-01-31 08:39:17,061 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 08:39:17 BoogieIcfgContainer
[2023-01-31 08:39:17,061 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-01-31 08:39:17,062 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2023-01-31 08:39:17,062 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2023-01-31 08:39:17,062 INFO  L275        PluginConnector]: Witness Printer initialized
[2023-01-31 08:39:17,063 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:39:15" (3/4) ...
[2023-01-31 08:39:17,065 INFO  L137         WitnessPrinter]: Generating witness for correct program
[2023-01-31 08:39:17,073 INFO  L361     RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2023-01-31 08:39:17,076 INFO  L961   BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2023-01-31 08:39:17,077 INFO  L961   BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2023-01-31 08:39:17,078 INFO  L961   BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2023-01-31 08:39:17,078 INFO  L961   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2023-01-31 08:39:17,129 INFO  L141         WitnessManager]: Wrote witness to /mnt/thread-witnesses/replication/UAutomizer-linux/witness.graphml
[2023-01-31 08:39:17,136 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-01-31 08:39:17,137 INFO  L158              Benchmark]: Toolchain (without parser) took 2140.13ms. Allocated memory was 42.1MB in the beginning and 51.1MB in the end (delta: 9.0MB). Free memory was 15.2MB in the beginning and 26.6MB in the end (delta: -11.3MB). There was no memory consumed. Max. memory is 15.6GB.
[2023-01-31 08:39:17,138 INFO  L158              Benchmark]: CDTParser took 15.25ms. Allocated memory is still 37.7MB. Free memory was 13.7MB in the beginning and 13.7MB in the end (delta: 30.6kB). Peak memory consumption was 30.6kB. Max. memory is 15.6GB.
[2023-01-31 08:39:17,140 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 304.16ms. Allocated memory is still 42.1MB. Free memory was 15.0MB in the beginning and 16.1MB in the end (delta: -1.1MB). Peak memory consumption was 5.2MB. Max. memory is 15.6GB.
[2023-01-31 08:39:17,144 INFO  L158              Benchmark]: Boogie Procedure Inliner took 37.77ms. Allocated memory is still 42.1MB. Free memory was 16.1MB in the beginning and 14.8MB in the end (delta: 1.3MB). Peak memory consumption was 1.3MB. Max. memory is 15.6GB.
[2023-01-31 08:39:17,145 INFO  L158              Benchmark]: Boogie Preprocessor took 34.81ms. Allocated memory is still 42.1MB. Free memory was 14.6MB in the beginning and 13.7MB in the end (delta: 894.7kB). Peak memory consumption was 894.7kB. Max. memory is 15.6GB.
[2023-01-31 08:39:17,153 INFO  L158              Benchmark]: RCFGBuilder took 339.08ms. Allocated memory is still 42.1MB. Free memory was 13.6MB in the beginning and 15.1MB in the end (delta: -1.5MB). Peak memory consumption was 5.0MB. Max. memory is 15.6GB.
[2023-01-31 08:39:17,153 INFO  L158              Benchmark]: TraceAbstraction took 1319.47ms. Allocated memory was 42.1MB in the beginning and 51.1MB in the end (delta: 9.0MB). Free memory was 14.4MB in the beginning and 29.0MB in the end (delta: -14.6MB). Peak memory consumption was 8.0MB. Max. memory is 15.6GB.
[2023-01-31 08:39:17,154 INFO  L158              Benchmark]: Witness Printer took 74.28ms. Allocated memory is still 51.1MB. Free memory was 29.0MB in the beginning and 26.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.5MB. Max. memory is 15.6GB.
[2023-01-31 08:39:17,158 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 15.25ms. Allocated memory is still 37.7MB. Free memory was 13.7MB in the beginning and 13.7MB in the end (delta: 30.6kB). Peak memory consumption was 30.6kB. Max. memory is 15.6GB.
 * CACSL2BoogieTranslator took 304.16ms. Allocated memory is still 42.1MB. Free memory was 15.0MB in the beginning and 16.1MB in the end (delta: -1.1MB). Peak memory consumption was 5.2MB. Max. memory is 15.6GB.
 * Boogie Procedure Inliner took 37.77ms. Allocated memory is still 42.1MB. Free memory was 16.1MB in the beginning and 14.8MB in the end (delta: 1.3MB). Peak memory consumption was 1.3MB. Max. memory is 15.6GB.
 * Boogie Preprocessor took 34.81ms. Allocated memory is still 42.1MB. Free memory was 14.6MB in the beginning and 13.7MB in the end (delta: 894.7kB). Peak memory consumption was 894.7kB. Max. memory is 15.6GB.
 * RCFGBuilder took 339.08ms. Allocated memory is still 42.1MB. Free memory was 13.6MB in the beginning and 15.1MB in the end (delta: -1.5MB). Peak memory consumption was 5.0MB. Max. memory is 15.6GB.
 * TraceAbstraction took 1319.47ms. Allocated memory was 42.1MB in the beginning and 51.1MB in the end (delta: 9.0MB). Free memory was 14.4MB in the beginning and 29.0MB in the end (delta: -14.6MB). Peak memory consumption was 8.0MB. Max. memory is 15.6GB.
 * Witness Printer took 74.28ms. Allocated memory is still 51.1MB. Free memory was 29.0MB in the beginning and 26.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.5MB. Max. memory is 15.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 13]: call to reach_error is unreachable
    For all program executions holds that call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 27 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 8 PreInvPairs, 12 NumberOfFragments, 25 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 15]: Loop Invariant
    Derived loop invariant: 0 <= x
  - InvariantResult [Line: 17]: Loop Invariant
    Derived loop invariant: 0 <= x && x <= 40
RESULT: Ultimate proved your program to be correct!
[2023-01-31 08:39:17,206 INFO  L552       MonitoredProcess]: [MP /mnt/thread-witnesses/replication/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE
