/usr/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 12:02:05,068 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 12:02:05,104 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 [2023-11-10 12:02:05,121 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 12:02:05,122 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 12:02:05,122 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 12:02:05,122 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 12:02:05,123 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 12:02:05,123 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 12:02:05,123 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 12:02:05,123 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 12:02:05,124 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 12:02:05,124 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 12:02:05,124 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 12:02:05,124 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 12:02:05,125 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 12:02:05,125 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 12:02:05,125 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 12:02:05,125 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 12:02:05,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 12:02:05,126 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 12:02:05,126 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 12:02:05,126 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 12:02:05,127 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 12:02:05,127 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 12:02:05,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 12:02:05,127 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 12:02:05,127 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 12:02:05,128 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 12:02:05,128 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 12:02:05,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 12:02:05,128 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 12:02:05,128 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 12:02:05,129 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 12:02:05,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 12:02:05,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 12:02:05,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 12:02:05,341 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 12:02:05,342 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 12:02:05,342 INFO L431 ainManager$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 [2023-11-10 12:02:06,532 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 12:02:06,860 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 12:02:06,861 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i [2023-11-10 12:02:06,880 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53750440e/9ca88feed1ce40c3b2ca4fb98a2f9f2c/FLAG21ad32ad1 [2023-11-10 12:02:06,897 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53750440e/9ca88feed1ce40c3b2ca4fb98a2f9f2c [2023-11-10 12:02:06,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 12:02:06,902 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 12:02:06,903 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 12:02:06,903 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 12:02:06,907 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 12:02:06,907 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:02:06" (1/1) ... [2023-11-10 12:02:06,908 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef753a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:06, skipping insertion in model container [2023-11-10 12:02:06,909 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:02:06" (1/1) ... [2023-11-10 12:02:06,956 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 12:02:07,176 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] [2023-11-10 12:02:07,206 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 12:02:07,221 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 12:02:07,251 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] [2023-11-10 12:02:07,263 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 12:02:07,306 INFO L206 MainTranslator]: Completed translation [2023-11-10 12:02:07,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:07 WrapperNode [2023-11-10 12:02:07,306 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 12:02:07,307 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 12:02:07,307 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 12:02:07,307 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 12:02:07,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:07" (1/1) ... [2023-11-10 12:02:07,326 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:07" (1/1) ... [2023-11-10 12:02:07,351 INFO L138 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 349 [2023-11-10 12:02:07,352 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 12:02:07,353 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 12:02:07,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 12:02:07,353 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 12:02:07,360 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:07" (1/1) ... [2023-11-10 12:02:07,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:07" (1/1) ... [2023-11-10 12:02:07,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:07" (1/1) ... [2023-11-10 12:02:07,365 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:07" (1/1) ... [2023-11-10 12:02:07,374 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:07" (1/1) ... [2023-11-10 12:02:07,398 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:07" (1/1) ... [2023-11-10 12:02:07,400 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:07" (1/1) ... [2023-11-10 12:02:07,402 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:07" (1/1) ... [2023-11-10 12:02:07,405 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 12:02:07,406 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 12:02:07,406 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 12:02:07,406 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 12:02:07,406 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:07" (1/1) ... [2023-11-10 12:02:07,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 12:02:07,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 12:02:07,447 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) [2023-11-10 12:02:07,465 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 [2023-11-10 12:02:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 12:02:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-10 12:02:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-10 12:02:07,475 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-10 12:02:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 12:02:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-10 12:02:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-10 12:02:07,475 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-10 12:02:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 12:02:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-10 12:02:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-10 12:02:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 12:02:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-10 12:02:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-11-10 12:02:07,476 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-11-10 12:02:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 12:02:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 12:02:07,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 12:02:07,477 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-10 12:02:07,609 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 12:02:07,612 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 12:02:07,941 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 12:02:07,950 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 12:02:07,950 INFO L302 CfgBuilder]: Removed 28 assume(true) statements. [2023-11-10 12:02:07,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:02:07 BoogieIcfgContainer [2023-11-10 12:02:07,958 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 12:02:07,959 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 12:02:07,959 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 12:02:07,962 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 12:02:07,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:02:06" (1/3) ... [2023-11-10 12:02:07,962 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a9182d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:02:07, skipping insertion in model container [2023-11-10 12:02:07,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:07" (2/3) ... [2023-11-10 12:02:07,963 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a9182d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:02:07, skipping insertion in model container [2023-11-10 12:02:07,963 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:02:07" (3/3) ... [2023-11-10 12:02:07,964 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2023-11-10 12:02:07,976 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 12:02:07,976 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-10 12:02:07,976 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 12:02:08,075 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-11-10 12:02:08,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 332 places, 370 transitions, 779 flow [2023-11-10 12:02:08,371 INFO L124 PetriNetUnfolderBase]: 164/1146 cut-off events. [2023-11-10 12:02:08,372 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-10 12:02:08,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1200 conditions, 1146 events. 164/1146 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 7335 event pairs, 0 based on Foata normal form. 0/971 useless extension candidates. Maximal degree in co-relation 590. Up to 16 conditions per place. [2023-11-10 12:02:08,396 INFO L82 GeneralOperation]: Start removeDead. Operand has 332 places, 370 transitions, 779 flow [2023-11-10 12:02:08,410 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 332 places, 370 transitions, 779 flow [2023-11-10 12:02:08,424 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 12:02:08,430 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;@58df8379, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 12:02:08,430 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-10 12:02:08,444 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 12:02:08,444 INFO L124 PetriNetUnfolderBase]: 8/138 cut-off events. [2023-11-10 12:02:08,444 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 12:02:08,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:02:08,445 INFO L208 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] [2023-11-10 12:02:08,446 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 12:02:08,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:02:08,450 INFO L85 PathProgramCache]: Analyzing trace with hash 221614705, now seen corresponding path program 1 times [2023-11-10 12:02:08,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:02:08,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642542507] [2023-11-10 12:02:08,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:02:08,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:02:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 12:02:08,660 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-10 12:02:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 12:02:08,757 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-10 12:02:08,761 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-10 12:02:08,762 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2023-11-10 12:02:08,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-11-10 12:02:08,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-11-10 12:02:08,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-11-10 12:02:08,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-11-10 12:02:08,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-11-10 12:02:08,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-11-10 12:02:08,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 12:02:08,766 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-10 12:02:08,770 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-10 12:02:08,770 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-10 12:02:08,891 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-11-10 12:02:08,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 526 places, 597 transitions, 1278 flow [2023-11-10 12:02:11,915 INFO L124 PetriNetUnfolderBase]: 1130/5883 cut-off events. [2023-11-10 12:02:11,915 INFO L125 PetriNetUnfolderBase]: For 602/654 co-relation queries the response was YES. [2023-11-10 12:02:12,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6531 conditions, 5883 events. 1130/5883 cut-off events. For 602/654 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 55052 event pairs, 22 based on Foata normal form. 0/5022 useless extension candidates. Maximal degree in co-relation 3647. Up to 192 conditions per place. [2023-11-10 12:02:12,319 INFO L82 GeneralOperation]: Start removeDead. Operand has 526 places, 597 transitions, 1278 flow [2023-11-10 12:02:12,469 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 526 places, 597 transitions, 1278 flow [2023-11-10 12:02:12,471 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 12:02:12,485 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;@58df8379, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 12:02:12,486 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-10 12:02:12,534 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 12:02:12,535 INFO L124 PetriNetUnfolderBase]: 24/348 cut-off events. [2023-11-10 12:02:12,535 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-10 12:02:12,535 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:02:12,536 INFO L208 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] [2023-11-10 12:02:12,537 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-10 12:02:12,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:02:12,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1763978734, now seen corresponding path program 1 times [2023-11-10 12:02:12,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:02:12,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099054371] [2023-11-10 12:02:12,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:02:12,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:02:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 12:02:12,597 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-10 12:02:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 12:02:12,629 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-10 12:02:12,630 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-10 12:02:12,630 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2023-11-10 12:02:12,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2023-11-10 12:02:12,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2023-11-10 12:02:12,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2023-11-10 12:02:12,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-11-10 12:02:12,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2023-11-10 12:02:12,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2023-11-10 12:02:12,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2023-11-10 12:02:12,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2023-11-10 12:02:12,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 12:02:12,632 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-10 12:02:12,632 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-10 12:02:12,632 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-10 12:02:12,738 INFO L144 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2023-11-10 12:02:12,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 720 places, 824 transitions, 1783 flow [2023-11-10 12:02:33,381 INFO L124 PetriNetUnfolderBase]: 8984/33632 cut-off events. [2023-11-10 12:02:33,381 INFO L125 PetriNetUnfolderBase]: For 7059/7310 co-relation queries the response was YES. [2023-11-10 12:02:36,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40743 conditions, 33632 events. 8984/33632 cut-off events. For 7059/7310 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 379888 event pairs, 1024 based on Foata normal form. 0/29388 useless extension candidates. Maximal degree in co-relation 21334. Up to 2304 conditions per place. [2023-11-10 12:02:36,050 INFO L82 GeneralOperation]: Start removeDead. Operand has 720 places, 824 transitions, 1783 flow [2023-11-10 12:02:37,100 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 720 places, 824 transitions, 1783 flow [2023-11-10 12:02:37,101 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 12:02:37,102 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;@58df8379, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 12:02:37,102 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-10 12:02:37,165 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 12:02:37,166 INFO L124 PetriNetUnfolderBase]: 67/813 cut-off events. [2023-11-10 12:02:37,166 INFO L125 PetriNetUnfolderBase]: For 27/41 co-relation queries the response was YES. [2023-11-10 12:02:37,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:02:37,166 INFO L208 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] [2023-11-10 12:02:37,166 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-10 12:02:37,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:02:37,167 INFO L85 PathProgramCache]: Analyzing trace with hash 259494373, now seen corresponding path program 1 times [2023-11-10 12:02:37,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:02:37,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107358743] [2023-11-10 12:02:37,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:02:37,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:02:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 12:02:37,205 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-10 12:02:37,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 12:02:37,238 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-10 12:02:37,238 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-10 12:02:37,239 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2023-11-10 12:02:37,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2023-11-10 12:02:37,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2023-11-10 12:02:37,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2023-11-10 12:02:37,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2023-11-10 12:02:37,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2023-11-10 12:02:37,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2023-11-10 12:02:37,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2023-11-10 12:02:37,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2023-11-10 12:02:37,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2023-11-10 12:02:37,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2023-11-10 12:02:37,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-10 12:02:37,240 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-10 12:02:37,241 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-10 12:02:37,241 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-10 12:02:37,363 INFO L144 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2023-11-10 12:02:37,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 914 places, 1051 transitions, 2294 flow