/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 11:41:54,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 11:41:54,410 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2023-11-17 11:41:54,434 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 11:41:54,435 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 11:41:54,436 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 11:41:54,436 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 11:41:54,436 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 11:41:54,437 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 11:41:54,440 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 11:41:54,440 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 11:41:54,440 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 11:41:54,440 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 11:41:54,441 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 11:41:54,441 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 11:41:54,441 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 11:41:54,442 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 11:41:54,442 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 11:41:54,442 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 11:41:54,442 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 11:41:54,442 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 11:41:54,443 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 11:41:54,443 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 11:41:54,443 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 11:41:54,443 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 11:41:54,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:41:54,444 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 11:41:54,444 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 11:41:54,444 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 11:41:54,444 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 11:41:54,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 11:41:54,445 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 11:41:54,445 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> true [2023-11-17 11:41:54,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 11:41:54,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 11:41:54,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 11:41:54,657 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 11:41:54,658 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 11:41:54,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i [2023-11-17 11:41:55,759 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 11:41:56,006 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 11:41:56,007 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i [2023-11-17 11:41:56,029 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/881078b32/36d81a46d4034b5882d747d54ddb3459/FLAG6348a53ef [2023-11-17 11:41:56,046 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/881078b32/36d81a46d4034b5882d747d54ddb3459 [2023-11-17 11:41:56,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 11:41:56,049 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 11:41:56,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 11:41:56,050 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 11:41:56,054 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 11:41:56,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:41:56" (1/1) ... [2023-11-17 11:41:56,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61e808bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:56, skipping insertion in model container [2023-11-17 11:41:56,055 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:41:56" (1/1) ... [2023-11-17 11:41:56,095 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 11:41:56,417 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i[47038,47051] [2023-11-17 11:41:56,471 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:41:56,482 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 11:41:56,509 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i[47038,47051] [2023-11-17 11:41:56,520 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:41:56,571 INFO L206 MainTranslator]: Completed translation [2023-11-17 11:41:56,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:56 WrapperNode [2023-11-17 11:41:56,572 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 11:41:56,573 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 11:41:56,573 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 11:41:56,573 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 11:41:56,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:56" (1/1) ... [2023-11-17 11:41:56,610 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:56" (1/1) ... [2023-11-17 11:41:56,651 INFO L138 Inliner]: procedures = 280, calls = 96, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 382 [2023-11-17 11:41:56,652 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 11:41:56,652 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 11:41:56,652 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 11:41:56,653 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 11:41:56,661 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:56" (1/1) ... [2023-11-17 11:41:56,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:56" (1/1) ... [2023-11-17 11:41:56,675 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:56" (1/1) ... [2023-11-17 11:41:56,675 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:56" (1/1) ... [2023-11-17 11:41:56,683 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:56" (1/1) ... [2023-11-17 11:41:56,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:56" (1/1) ... [2023-11-17 11:41:56,703 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:56" (1/1) ... [2023-11-17 11:41:56,705 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:56" (1/1) ... [2023-11-17 11:41:56,708 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 11:41:56,709 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 11:41:56,709 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 11:41:56,709 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 11:41:56,709 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:56" (1/1) ... [2023-11-17 11:41:56,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:41:56,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:41:56,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-17 11:41:56,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-17 11:41:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 11:41:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-17 11:41:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-17 11:41:56,767 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-17 11:41:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 11:41:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-17 11:41:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 11:41:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-17 11:41:56,768 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-17 11:41:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 11:41:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 11:41:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-17 11:41:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 11:41:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-17 11:41:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-11-17 11:41:56,768 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-11-17 11:41:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 11:41:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 11:41:56,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 11:41:56,770 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 11:41:56,934 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 11:41:56,936 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 11:41:57,352 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 11:41:57,619 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 11:41:57,619 INFO L307 CfgBuilder]: Removed 28 assume(true) statements. [2023-11-17 11:41:57,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:41:57 BoogieIcfgContainer [2023-11-17 11:41:57,621 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 11:41:57,623 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 11:41:57,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 11:41:57,626 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 11:41:57,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:41:56" (1/3) ... [2023-11-17 11:41:57,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1778a563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:41:57, skipping insertion in model container [2023-11-17 11:41:57,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:56" (2/3) ... [2023-11-17 11:41:57,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1778a563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:41:57, skipping insertion in model container [2023-11-17 11:41:57,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:41:57" (3/3) ... [2023-11-17 11:41:57,629 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_83-list2_racing1.i [2023-11-17 11:41:57,645 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 11:41:57,646 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-17 11:41:57,646 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 11:41:57,732 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-11-17 11:41:57,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 137 transitions, 313 flow [2023-11-17 11:41:57,895 INFO L124 PetriNetUnfolderBase]: 120/454 cut-off events. [2023-11-17 11:41:57,895 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-17 11:41:57,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 454 events. 120/454 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2651 event pairs, 0 based on Foata normal form. 0/320 useless extension candidates. Maximal degree in co-relation 239. Up to 16 conditions per place. [2023-11-17 11:41:57,908 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 137 transitions, 313 flow [2023-11-17 11:41:57,927 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 137 transitions, 313 flow [2023-11-17 11:41:57,930 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 11:41:57,938 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 137 transitions, 313 flow [2023-11-17 11:41:57,942 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 137 transitions, 313 flow [2023-11-17 11:41:57,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 137 transitions, 313 flow [2023-11-17 11:41:58,065 INFO L124 PetriNetUnfolderBase]: 120/454 cut-off events. [2023-11-17 11:41:58,065 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-17 11:41:58,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 454 events. 120/454 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2651 event pairs, 0 based on Foata normal form. 0/320 useless extension candidates. Maximal degree in co-relation 239. Up to 16 conditions per place. [2023-11-17 11:41:58,083 INFO L119 LiptonReduction]: Number of co-enabled transitions 10286 [2023-11-17 11:42:06,482 INFO L134 LiptonReduction]: Checked pairs total: 33996 [2023-11-17 11:42:06,483 INFO L136 LiptonReduction]: Total number of compositions: 73 [2023-11-17 11:42:06,497 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 11:42:06,503 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6a287bf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 11:42:06,504 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-17 11:42:06,510 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 11:42:06,510 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2023-11-17 11:42:06,510 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:42:06,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:42:06,511 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-17 11:42:06,511 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-17 11:42:06,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:42:06,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1839756353, now seen corresponding path program 1 times [2023-11-17 11:42:06,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:42:06,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272568603] [2023-11-17 11:42:06,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:42:06,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:42:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 11:42:06,711 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-17 11:42:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 11:42:06,798 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-17 11:42:06,799 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-17 11:42:06,800 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2023-11-17 11:42:06,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-11-17 11:42:06,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-11-17 11:42:06,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-11-17 11:42:06,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-11-17 11:42:06,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-11-17 11:42:06,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-11-17 11:42:06,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 11:42:06,804 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-17 11:42:06,809 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-17 11:42:06,810 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-17 11:42:06,884 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-11-17 11:42:06,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 252 transitions, 588 flow [2023-11-17 11:42:07,313 INFO L124 PetriNetUnfolderBase]: 875/2479 cut-off events. [2023-11-17 11:42:07,313 INFO L125 PetriNetUnfolderBase]: For 602/698 co-relation queries the response was YES. [2023-11-17 11:42:07,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3127 conditions, 2479 events. 875/2479 cut-off events. For 602/698 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 19705 event pairs, 11 based on Foata normal form. 0/1813 useless extension candidates. Maximal degree in co-relation 1693. Up to 192 conditions per place. [2023-11-17 11:42:07,350 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 252 transitions, 588 flow [2023-11-17 11:42:07,379 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 252 transitions, 588 flow [2023-11-17 11:42:07,380 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 11:42:07,380 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 191 places, 252 transitions, 588 flow [2023-11-17 11:42:07,380 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 191 places, 252 transitions, 588 flow [2023-11-17 11:42:07,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 252 transitions, 588 flow [2023-11-17 11:42:07,683 INFO L124 PetriNetUnfolderBase]: 875/2479 cut-off events. [2023-11-17 11:42:07,684 INFO L125 PetriNetUnfolderBase]: For 602/698 co-relation queries the response was YES. [2023-11-17 11:42:07,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3127 conditions, 2479 events. 875/2479 cut-off events. For 602/698 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 19705 event pairs, 11 based on Foata normal form. 0/1813 useless extension candidates. Maximal degree in co-relation 1693. Up to 192 conditions per place. [2023-11-17 11:42:07,908 INFO L119 LiptonReduction]: Number of co-enabled transitions 45940 [2023-11-17 11:42:11,370 INFO L134 LiptonReduction]: Checked pairs total: 176499 [2023-11-17 11:42:11,429 INFO L136 LiptonReduction]: Total number of compositions: 144 [2023-11-17 11:42:11,436 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 11:42:11,437 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6a287bf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 11:42:11,438 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-17 11:42:11,452 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 11:42:11,452 INFO L124 PetriNetUnfolderBase]: 15/104 cut-off events. [2023-11-17 11:42:11,453 INFO L125 PetriNetUnfolderBase]: For 12/13 co-relation queries the response was YES. [2023-11-17 11:42:11,453 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:42:11,453 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:42:11,453 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-17 11:42:11,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:42:11,454 INFO L85 PathProgramCache]: Analyzing trace with hash 696112685, now seen corresponding path program 1 times [2023-11-17 11:42:11,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:42:11,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683517189] [2023-11-17 11:42:11,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:42:11,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:42:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:42:11,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:42:11,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:42:11,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683517189] [2023-11-17 11:42:11,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683517189] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:42:11,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:42:11,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 11:42:11,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843530873] [2023-11-17 11:42:11,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:42:11,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:42:11,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:42:11,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:42:11,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:42:11,634 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 396 [2023-11-17 11:42:11,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 185 transitions, 454 flow. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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) [2023-11-17 11:42:11,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:42:11,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 396 [2023-11-17 11:42:11,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand