/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:04:05,956 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:04:06,014 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-NoLbe.epf [2023-12-09 15:04:06,038 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:04:06,039 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:04:06,039 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:04:06,040 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:04:06,040 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:04:06,041 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:04:06,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:04:06,041 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:04:06,042 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:04:06,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:04:06,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:04:06,042 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:04:06,043 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:04:06,043 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:04:06,043 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:04:06,043 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:04:06,044 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:04:06,044 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:04:06,045 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:04:06,045 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:04:06,045 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:04:06,045 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:04:06,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:04:06,046 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:04:06,046 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:04:06,047 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:04:06,047 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:04:06,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:04:06,048 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:04:06,048 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:04:06,048 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:04:06,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:04:06,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:04:06,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:04:06,298 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:04:06,300 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:04:06,301 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i [2023-12-09 15:04:07,470 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:04:07,726 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:04:07,728 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i [2023-12-09 15:04:07,750 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1851ed7/57f97c16f5bf46a19aa744a8e6d4b033/FLAGbd73fcfaa [2023-12-09 15:04:07,763 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1851ed7/57f97c16f5bf46a19aa744a8e6d4b033 [2023-12-09 15:04:07,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:04:07,766 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:04:07,767 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:04:07,768 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:04:07,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:04:07,772 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:04:07" (1/1) ... [2023-12-09 15:04:07,773 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bbff08b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:07, skipping insertion in model container [2023-12-09 15:04:07,774 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:04:07" (1/1) ... [2023-12-09 15:04:07,830 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:04:08,235 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_85-list2_racefree.i[47038,47051] [2023-12-09 15:04:08,299 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:04:08,319 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:04:08,357 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_85-list2_racefree.i[47038,47051] [2023-12-09 15:04:08,372 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:04:08,425 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:04:08,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:08 WrapperNode [2023-12-09 15:04:08,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:04:08,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:04:08,426 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:04:08,427 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:04:08,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:08" (1/1) ... [2023-12-09 15:04:08,450 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:08" (1/1) ... [2023-12-09 15:04:08,494 INFO L138 Inliner]: procedures = 280, calls = 96, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 382 [2023-12-09 15:04:08,495 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:04:08,496 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:04:08,496 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:04:08,496 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:04:08,513 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:08" (1/1) ... [2023-12-09 15:04:08,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:08" (1/1) ... [2023-12-09 15:04:08,522 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:08" (1/1) ... [2023-12-09 15:04:08,522 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:08" (1/1) ... [2023-12-09 15:04:08,554 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:08" (1/1) ... [2023-12-09 15:04:08,559 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:08" (1/1) ... [2023-12-09 15:04:08,590 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:08" (1/1) ... [2023-12-09 15:04:08,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:08" (1/1) ... [2023-12-09 15:04:08,596 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:04:08,597 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:04:08,597 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:04:08,597 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:04:08,597 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:08" (1/1) ... [2023-12-09 15:04:08,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:04:08,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:04:08,642 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) [2023-12-09 15:04:08,650 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 [2023-12-09 15:04:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:04:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-09 15:04:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-12-09 15:04:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-12-09 15:04:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:04:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-09 15:04:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:04:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-12-09 15:04:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-12-09 15:04:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:04:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-09 15:04:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-09 15:04:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:04:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-09 15:04:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-12-09 15:04:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-12-09 15:04:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:04:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:04:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:04:08,672 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 15:04:08,817 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:04:08,819 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:04:09,259 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:04:09,301 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:04:09,301 INFO L309 CfgBuilder]: Removed 28 assume(true) statements. [2023-12-09 15:04:09,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:04:09 BoogieIcfgContainer [2023-12-09 15:04:09,303 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:04:09,305 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:04:09,305 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:04:09,308 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:04:09,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:04:07" (1/3) ... [2023-12-09 15:04:09,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69019f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:04:09, skipping insertion in model container [2023-12-09 15:04:09,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:08" (2/3) ... [2023-12-09 15:04:09,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69019f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:04:09, skipping insertion in model container [2023-12-09 15:04:09,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:04:09" (3/3) ... [2023-12-09 15:04:09,317 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2023-12-09 15:04:09,332 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:04:09,333 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-09 15:04:09,333 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:04:09,468 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-12-09 15:04:09,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 343 places, 381 transitions, 801 flow [2023-12-09 15:04:09,902 INFO L124 PetriNetUnfolderBase]: 164/1177 cut-off events. [2023-12-09 15:04:09,902 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-12-09 15:04:09,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1231 conditions, 1177 events. 164/1177 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7599 event pairs, 0 based on Foata normal form. 0/999 useless extension candidates. Maximal degree in co-relation 605. Up to 16 conditions per place. [2023-12-09 15:04:09,949 INFO L82 GeneralOperation]: Start removeDead. Operand has 343 places, 381 transitions, 801 flow [2023-12-09 15:04:09,969 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 343 places, 381 transitions, 801 flow [2023-12-09 15:04:09,985 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:04:09,992 INFO L362 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=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;@196c7b28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:04:09,992 INFO L363 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-12-09 15:04:10,012 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:04:10,013 INFO L124 PetriNetUnfolderBase]: 8/138 cut-off events. [2023-12-09 15:04:10,013 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 15:04:10,013 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:10,014 INFO L233 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:04:10,015 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-12-09 15:04:10,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:10,020 INFO L85 PathProgramCache]: Analyzing trace with hash 831283409, now seen corresponding path program 1 times [2023-12-09 15:04:10,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:10,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694624316] [2023-12-09 15:04:10,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:10,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-09 15:04:10,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-09 15:04:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-09 15:04:10,349 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-09 15:04:10,351 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-12-09 15:04:10,352 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2023-12-09 15:04:10,353 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-12-09 15:04:10,354 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-12-09 15:04:10,355 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-12-09 15:04:10,355 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-12-09 15:04:10,355 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-12-09 15:04:10,356 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-12-09 15:04:10,356 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:04:10,357 INFO L457 BasicCegarLoop]: Path program histogram: [1] [2023-12-09 15:04:10,359 WARN L227 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-09 15:04:10,359 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-12-09 15:04:10,501 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-12-09 15:04:10,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 548 places, 619 transitions, 1322 flow [2023-12-09 15:04:13,513 INFO L124 PetriNetUnfolderBase]: 1130/6005 cut-off events. [2023-12-09 15:04:13,514 INFO L125 PetriNetUnfolderBase]: For 602/668 co-relation queries the response was YES. [2023-12-09 15:04:13,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6653 conditions, 6005 events. 1130/6005 cut-off events. For 602/668 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 56962 event pairs, 22 based on Foata normal form. 0/5125 useless extension candidates. Maximal degree in co-relation 3728. Up to 192 conditions per place. [2023-12-09 15:04:13,774 INFO L82 GeneralOperation]: Start removeDead. Operand has 548 places, 619 transitions, 1322 flow [2023-12-09 15:04:13,946 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 548 places, 619 transitions, 1322 flow [2023-12-09 15:04:13,948 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:04:13,950 INFO L362 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=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;@196c7b28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:04:13,951 INFO L363 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-12-09 15:04:13,983 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:04:13,983 INFO L124 PetriNetUnfolderBase]: 24/349 cut-off events. [2023-12-09 15:04:13,983 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-12-09 15:04:13,984 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:13,984 INFO L233 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:04:13,985 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-12-09 15:04:13,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:13,986 INFO L85 PathProgramCache]: Analyzing trace with hash -118503611, now seen corresponding path program 1 times [2023-12-09 15:04:13,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:13,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611392693] [2023-12-09 15:04:13,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:13,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-09 15:04:14,072 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-09 15:04:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-09 15:04:14,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-09 15:04:14,131 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-12-09 15:04:14,131 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2023-12-09 15:04:14,131 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2023-12-09 15:04:14,132 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2023-12-09 15:04:14,132 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2023-12-09 15:04:14,132 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-12-09 15:04:14,132 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2023-12-09 15:04:14,132 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2023-12-09 15:04:14,133 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2023-12-09 15:04:14,133 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2023-12-09 15:04:14,133 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:04:14,133 INFO L457 BasicCegarLoop]: Path program histogram: [1] [2023-12-09 15:04:14,134 WARN L227 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-09 15:04:14,134 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-12-09 15:04:14,284 INFO L144 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2023-12-09 15:04:14,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 753 places, 857 transitions, 1849 flow [2023-12-09 15:04:35,706 INFO L124 PetriNetUnfolderBase]: 8984/33935 cut-off events. [2023-12-09 15:04:35,706 INFO L125 PetriNetUnfolderBase]: For 7059/7370 co-relation queries the response was YES. [2023-12-09 15:04:38,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41046 conditions, 33935 events. 8984/33935 cut-off events. For 7059/7370 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 384297 event pairs, 912 based on Foata normal form. 0/29647 useless extension candidates. Maximal degree in co-relation 21561. Up to 2304 conditions per place. [2023-12-09 15:04:38,769 INFO L82 GeneralOperation]: Start removeDead. Operand has 753 places, 857 transitions, 1849 flow [2023-12-09 15:04:39,907 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 753 places, 857 transitions, 1849 flow [2023-12-09 15:04:39,908 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:04:39,909 INFO L362 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=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;@196c7b28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:04:39,909 INFO L363 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-12-09 15:04:39,986 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:04:39,987 INFO L124 PetriNetUnfolderBase]: 63/806 cut-off events. [2023-12-09 15:04:39,987 INFO L125 PetriNetUnfolderBase]: For 23/31 co-relation queries the response was YES. [2023-12-09 15:04:39,987 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:39,987 INFO L233 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:04:39,987 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-12-09 15:04:39,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:39,988 INFO L85 PathProgramCache]: Analyzing trace with hash 898033838, now seen corresponding path program 1 times [2023-12-09 15:04:39,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:39,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519091948] [2023-12-09 15:04:39,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:40,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-09 15:04:40,158 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-09 15:04:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-09 15:04:40,211 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-09 15:04:40,211 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-12-09 15:04:40,212 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2023-12-09 15:04:40,212 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2023-12-09 15:04:40,212 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2023-12-09 15:04:40,212 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2023-12-09 15:04:40,212 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2023-12-09 15:04:40,213 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2023-12-09 15:04:40,213 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2023-12-09 15:04:40,213 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2023-12-09 15:04:40,213 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2023-12-09 15:04:40,213 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2023-12-09 15:04:40,213 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2023-12-09 15:04:40,214 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:04:40,214 INFO L457 BasicCegarLoop]: Path program histogram: [1] [2023-12-09 15:04:40,214 WARN L227 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-09 15:04:40,215 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-12-09 15:04:40,383 INFO L144 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2023-12-09 15:04:40,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 958 places, 1095 transitions, 2382 flow