/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_09-ptrmunge_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:56:16,444 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:56:16,510 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 11:56:16,531 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:56:16,532 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:56:16,532 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:56:16,532 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:56:16,533 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:56:16,533 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:56:16,533 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:56:16,533 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:56:16,534 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:56:16,534 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:56:16,534 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:56:16,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:56:16,535 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:56:16,535 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:56:16,535 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:56:16,535 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:56:16,536 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:56:16,536 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:56:16,539 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:56:16,540 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:56:16,540 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:56:16,543 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:56:16,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:56:16,543 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:56:16,544 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:56:16,544 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:56:16,544 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:56:16,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:56:16,545 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:56:16,545 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:56:16,545 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:56:16,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:56:16,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:56:16,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:56:16,773 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:56:16,773 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:56:16,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2023-11-10 11:56:17,818 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:56:18,043 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:56:18,044 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2023-11-10 11:56:18,059 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/138e3a293/610200e98a7740a0a5c5e15a2fa0a4ee/FLAGd883d7a1f [2023-11-10 11:56:18,070 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/138e3a293/610200e98a7740a0a5c5e15a2fa0a4ee [2023-11-10 11:56:18,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:56:18,075 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:56:18,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:56:18,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:56:18,079 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:56:18,080 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:56:18" (1/1) ... [2023-11-10 11:56:18,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d50dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:18, skipping insertion in model container [2023-11-10 11:56:18,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:56:18" (1/1) ... [2023-11-10 11:56:18,116 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:56:18,288 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_09-ptrmunge_racing.i[30176,30189] [2023-11-10 11:56:18,306 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:56:18,325 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:56:18,362 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_09-ptrmunge_racing.i[30176,30189] [2023-11-10 11:56:18,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:56:18,430 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:56:18,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:18 WrapperNode [2023-11-10 11:56:18,430 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:56:18,431 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:56:18,431 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:56:18,431 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:56:18,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:18" (1/1) ... [2023-11-10 11:56:18,448 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:18" (1/1) ... [2023-11-10 11:56:18,466 INFO L138 Inliner]: procedures = 172, calls = 50, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 221 [2023-11-10 11:56:18,467 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:56:18,467 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:56:18,467 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:56:18,467 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:56:18,474 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:18" (1/1) ... [2023-11-10 11:56:18,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:18" (1/1) ... [2023-11-10 11:56:18,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:18" (1/1) ... [2023-11-10 11:56:18,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:18" (1/1) ... [2023-11-10 11:56:18,482 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:18" (1/1) ... [2023-11-10 11:56:18,485 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:18" (1/1) ... [2023-11-10 11:56:18,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:18" (1/1) ... [2023-11-10 11:56:18,488 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:18" (1/1) ... [2023-11-10 11:56:18,490 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:56:18,491 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:56:18,491 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:56:18,491 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:56:18,492 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:18" (1/1) ... [2023-11-10 11:56:18,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:56:18,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:56:18,554 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 11:56:18,581 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 11:56:18,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-10 11:56:18,595 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-10 11:56:18,595 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-10 11:56:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:56:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-10 11:56:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:56:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:56:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-10 11:56:18,603 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-10 11:56:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:56:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:56:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:56:18,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:56:18,606 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 11:56:18,728 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:56:18,729 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:56:18,956 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:56:18,967 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:56:18,968 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-11-10 11:56:18,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:56:18 BoogieIcfgContainer [2023-11-10 11:56:18,971 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:56:18,972 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:56:18,973 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:56:18,975 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:56:18,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:56:18" (1/3) ... [2023-11-10 11:56:18,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec196be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:56:18, skipping insertion in model container [2023-11-10 11:56:18,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:18" (2/3) ... [2023-11-10 11:56:18,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec196be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:56:18, skipping insertion in model container [2023-11-10 11:56:18,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:56:18" (3/3) ... [2023-11-10 11:56:18,977 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2023-11-10 11:56:18,989 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:56:18,989 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-10 11:56:18,989 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:56:19,072 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-10 11:56:19,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 200 places, 227 transitions, 474 flow [2023-11-10 11:56:19,244 INFO L124 PetriNetUnfolderBase]: 58/409 cut-off events. [2023-11-10 11:56:19,244 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-10 11:56:19,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 409 events. 58/409 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1811 event pairs, 0 based on Foata normal form. 0/342 useless extension candidates. Maximal degree in co-relation 219. Up to 8 conditions per place. [2023-11-10 11:56:19,266 INFO L82 GeneralOperation]: Start removeDead. Operand has 200 places, 227 transitions, 474 flow [2023-11-10 11:56:19,276 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 227 transitions, 474 flow [2023-11-10 11:56:19,291 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:56:19,296 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;@f13e85b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:56:19,296 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-10 11:56:19,314 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:56:19,314 INFO L124 PetriNetUnfolderBase]: 7/106 cut-off events. [2023-11-10 11:56:19,314 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:56:19,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:56:19,315 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] [2023-11-10 11:56:19,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-10 11:56:19,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:56:19,319 INFO L85 PathProgramCache]: Analyzing trace with hash 471148972, now seen corresponding path program 1 times [2023-11-10 11:56:19,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:56:19,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638282594] [2023-11-10 11:56:19,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:56:19,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:56:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 11:56:19,425 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-10 11:56:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 11:56:19,488 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-10 11:56:19,490 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-10 11:56:19,490 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2023-11-10 11:56:19,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-11-10 11:56:19,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2023-11-10 11:56:19,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2023-11-10 11:56:19,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2023-11-10 11:56:19,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-11-10 11:56:19,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:56:19,493 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-10 11:56:19,495 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-10 11:56:19,495 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-10 11:56:19,541 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-10 11:56:19,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 312 places, 363 transitions, 770 flow [2023-11-10 11:56:19,770 INFO L124 PetriNetUnfolderBase]: 197/1194 cut-off events. [2023-11-10 11:56:19,771 INFO L125 PetriNetUnfolderBase]: For 72/75 co-relation queries the response was YES. [2023-11-10 11:56:19,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1283 conditions, 1194 events. 197/1194 cut-off events. For 72/75 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 7376 event pairs, 2 based on Foata normal form. 0/1002 useless extension candidates. Maximal degree in co-relation 718. Up to 32 conditions per place. [2023-11-10 11:56:19,784 INFO L82 GeneralOperation]: Start removeDead. Operand has 312 places, 363 transitions, 770 flow [2023-11-10 11:56:19,794 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 312 places, 363 transitions, 770 flow [2023-11-10 11:56:19,795 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:56:19,796 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;@f13e85b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:56:19,796 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-10 11:56:19,816 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:56:19,816 INFO L124 PetriNetUnfolderBase]: 24/257 cut-off events. [2023-11-10 11:56:19,816 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2023-11-10 11:56:19,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:56:19,817 INFO L208 CegarLoopForPetriNet]: trace histogram [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 11:56:19,817 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-11-10 11:56:19,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:56:19,818 INFO L85 PathProgramCache]: Analyzing trace with hash -525813878, now seen corresponding path program 1 times [2023-11-10 11:56:19,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:56:19,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908869365] [2023-11-10 11:56:19,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:56:19,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:56:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:56:20,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:56:20,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:56:20,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908869365] [2023-11-10 11:56:20,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908869365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:56:20,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:56:20,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-10 11:56:20,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361875535] [2023-11-10 11:56:20,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:56:20,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-10 11:56:20,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:56:20,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-10 11:56:20,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-10 11:56:20,673 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 363 [2023-11-10 11:56:20,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 363 transitions, 770 flow. Second operand has 14 states, 14 states have (on average 203.85714285714286) internal successors, (2854), 14 states have internal predecessors, (2854), 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) [2023-11-10 11:56:20,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:56:20,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 363 [2023-11-10 11:56:20,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand