/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_08-glob_fld_2_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:16:55,609 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:16:55,694 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-VariableLbe.epf [2023-08-25 03:16:55,700 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:16:55,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:16:55,731 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:16:55,732 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:16:55,732 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:16:55,733 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:16:55,737 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:16:55,737 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:16:55,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:16:55,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:16:55,738 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:16:55,739 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:16:55,739 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:16:55,739 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:16:55,739 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:16:55,739 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:16:55,740 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:16:55,740 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:16:55,741 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:16:55,741 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:16:55,741 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:16:55,741 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:16:55,742 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:16:55,742 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:16:55,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:16:55,742 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:16:55,742 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:16:55,743 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:16:55,743 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:16:55,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:16:55,744 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:16:55,744 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:16:55,744 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:16:56,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:16:56,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:16:56,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:16:56,072 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:16:56,072 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:16:56,074 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_08-glob_fld_2_rc.i [2023-08-25 03:16:57,348 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:16:57,581 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:16:57,581 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_08-glob_fld_2_rc.i [2023-08-25 03:16:57,601 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d33130310/81733ae6f7324610a0e34a0b7a92deaf/FLAGea0699659 [2023-08-25 03:16:57,614 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d33130310/81733ae6f7324610a0e34a0b7a92deaf [2023-08-25 03:16:57,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:16:57,620 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:16:57,623 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:16:57,623 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:16:57,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:16:57,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:16:57" (1/1) ... [2023-08-25 03:16:57,627 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45aa2354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:57, skipping insertion in model container [2023-08-25 03:16:57,627 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:16:57" (1/1) ... [2023-08-25 03:16:57,679 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:16:57,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:16:57,981 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:16:58,010 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:16:58,012 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:16:58,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:16:58,073 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:16:58,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:58 WrapperNode [2023-08-25 03:16:58,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:16:58,075 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:16:58,075 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:16:58,075 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:16:58,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:58" (1/1) ... [2023-08-25 03:16:58,107 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:58" (1/1) ... [2023-08-25 03:16:58,131 INFO L138 Inliner]: procedures = 161, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 50 [2023-08-25 03:16:58,132 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:16:58,133 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:16:58,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:16:58,133 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:16:58,140 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:58" (1/1) ... [2023-08-25 03:16:58,141 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:58" (1/1) ... [2023-08-25 03:16:58,151 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:58" (1/1) ... [2023-08-25 03:16:58,151 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:58" (1/1) ... [2023-08-25 03:16:58,162 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:58" (1/1) ... [2023-08-25 03:16:58,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:58" (1/1) ... [2023-08-25 03:16:58,164 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:58" (1/1) ... [2023-08-25 03:16:58,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:58" (1/1) ... [2023-08-25 03:16:58,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:16:58,168 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:16:58,168 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:16:58,168 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:16:58,169 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:58" (1/1) ... [2023-08-25 03:16:58,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:16:58,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:16:58,193 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) [2023-08-25 03:16:58,200 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 [2023-08-25 03:16:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 03:16:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:16:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:16:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:16:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 03:16:58,224 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 03:16:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:16:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 03:16:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:16:58,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:16:58,225 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 03:16:58,322 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:16:58,323 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:16:58,450 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:16:58,456 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:16:58,456 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 03:16:58,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:16:58 BoogieIcfgContainer [2023-08-25 03:16:58,458 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:16:58,460 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:16:58,460 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:16:58,462 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:16:58,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:16:57" (1/3) ... [2023-08-25 03:16:58,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d66286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:16:58, skipping insertion in model container [2023-08-25 03:16:58,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:58" (2/3) ... [2023-08-25 03:16:58,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d66286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:16:58, skipping insertion in model container [2023-08-25 03:16:58,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:16:58" (3/3) ... [2023-08-25 03:16:58,465 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_08-glob_fld_2_rc.i [2023-08-25 03:16:58,480 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:16:58,481 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-25 03:16:58,481 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:16:58,555 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 03:16:58,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 95 transitions, 200 flow [2023-08-25 03:16:58,690 INFO L124 PetriNetUnfolderBase]: 0/93 cut-off events. [2023-08-25 03:16:58,690 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:16:58,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 93 events. 0/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 135 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 03:16:58,701 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 95 transitions, 200 flow [2023-08-25 03:16:58,705 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 93 transitions, 192 flow [2023-08-25 03:16:58,707 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:16:58,715 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 93 transitions, 192 flow [2023-08-25 03:16:58,717 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 93 transitions, 192 flow [2023-08-25 03:16:58,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 93 transitions, 192 flow [2023-08-25 03:16:58,737 INFO L124 PetriNetUnfolderBase]: 0/93 cut-off events. [2023-08-25 03:16:58,737 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:16:58,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 93 events. 0/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 135 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 03:16:58,740 INFO L119 LiptonReduction]: Number of co-enabled transitions 3696 [2023-08-25 03:17:00,428 INFO L134 LiptonReduction]: Checked pairs total: 17147 [2023-08-25 03:17:00,429 INFO L136 LiptonReduction]: Total number of compositions: 47 [2023-08-25 03:17:00,440 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:17:00,445 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=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@d11d64f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:17:00,445 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-25 03:17:00,450 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:17:00,450 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2023-08-25 03:17:00,451 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:17:00,451 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:00,451 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:00,452 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 7 more)] === [2023-08-25 03:17:00,456 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:00,456 INFO L85 PathProgramCache]: Analyzing trace with hash 199307244, now seen corresponding path program 1 times [2023-08-25 03:17:00,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:00,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060676893] [2023-08-25 03:17:00,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:00,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:00,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:17:00,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:00,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060676893] [2023-08-25 03:17:00,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060676893] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:00,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:17:00,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:17:00,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746811355] [2023-08-25 03:17:00,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:00,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:00,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:01,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:01,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:17:01,016 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 142 [2023-08-25 03:17:01,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 46 transitions, 98 flow. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 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) [2023-08-25 03:17:01,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:01,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 142 [2023-08-25 03:17:01,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:02,804 INFO L124 PetriNetUnfolderBase]: 10325/16084 cut-off events. [2023-08-25 03:17:02,805 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-08-25 03:17:02,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32202 conditions, 16084 events. 10325/16084 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 100502 event pairs, 3227 based on Foata normal form. 0/13788 useless extension candidates. Maximal degree in co-relation 32192. Up to 6365 conditions per place. [2023-08-25 03:17:02,911 INFO L140 encePairwiseOnDemand]: 120/142 looper letters, 178 selfloop transitions, 42 changer transitions 0/220 dead transitions. [2023-08-25 03:17:02,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 220 transitions, 898 flow [2023-08-25 03:17:02,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:02,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:02,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 510 transitions. [2023-08-25 03:17:02,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5985915492957746 [2023-08-25 03:17:02,925 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 510 transitions. [2023-08-25 03:17:02,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 510 transitions. [2023-08-25 03:17:02,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:02,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 510 transitions. [2023-08-25 03:17:02,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 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) [2023-08-25 03:17:02,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 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) [2023-08-25 03:17:02,938 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 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) [2023-08-25 03:17:02,939 INFO L175 Difference]: Start difference. First operand has 53 places, 46 transitions, 98 flow. Second operand 6 states and 510 transitions. [2023-08-25 03:17:02,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 220 transitions, 898 flow [2023-08-25 03:17:02,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 220 transitions, 892 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:17:02,948 INFO L231 Difference]: Finished difference. Result has 61 places, 92 transitions, 412 flow [2023-08-25 03:17:02,949 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=412, PETRI_PLACES=61, PETRI_TRANSITIONS=92} [2023-08-25 03:17:02,952 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 8 predicate places. [2023-08-25 03:17:02,953 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 92 transitions, 412 flow [2023-08-25 03:17:02,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 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) [2023-08-25 03:17:02,953 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:02,953 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:02,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:17:02,954 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 7 more)] === [2023-08-25 03:17:02,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:02,954 INFO L85 PathProgramCache]: Analyzing trace with hash 2055809289, now seen corresponding path program 1 times [2023-08-25 03:17:02,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:02,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615611301] [2023-08-25 03:17:02,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:02,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:03,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:17:03,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:03,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615611301] [2023-08-25 03:17:03,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615611301] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:03,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:17:03,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:17:03,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977924788] [2023-08-25 03:17:03,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:03,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:03,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:03,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:03,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:17:03,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 142 [2023-08-25 03:17:03,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 92 transitions, 412 flow. Second operand has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 6 states have internal predecessors, (298), 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) [2023-08-25 03:17:03,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:03,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 142 [2023-08-25 03:17:03,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:04,756 INFO L124 PetriNetUnfolderBase]: 9613/14990 cut-off events. [2023-08-25 03:17:04,757 INFO L125 PetriNetUnfolderBase]: For 11778/11778 co-relation queries the response was YES. [2023-08-25 03:17:04,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41417 conditions, 14990 events. 9613/14990 cut-off events. For 11778/11778 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 93738 event pairs, 4061 based on Foata normal form. 0/14608 useless extension candidates. Maximal degree in co-relation 41404. Up to 8427 conditions per place. [2023-08-25 03:17:04,853 INFO L140 encePairwiseOnDemand]: 136/142 looper letters, 382 selfloop transitions, 5 changer transitions 0/387 dead transitions. [2023-08-25 03:17:04,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 387 transitions, 2672 flow [2023-08-25 03:17:04,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:04,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:04,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 446 transitions. [2023-08-25 03:17:04,857 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5234741784037559 [2023-08-25 03:17:04,857 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 446 transitions. [2023-08-25 03:17:04,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 446 transitions. [2023-08-25 03:17:04,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:04,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 446 transitions. [2023-08-25 03:17:04,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 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) [2023-08-25 03:17:04,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 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) [2023-08-25 03:17:04,862 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 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) [2023-08-25 03:17:04,862 INFO L175 Difference]: Start difference. First operand has 61 places, 92 transitions, 412 flow. Second operand 6 states and 446 transitions. [2023-08-25 03:17:04,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 387 transitions, 2672 flow [2023-08-25 03:17:04,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 387 transitions, 2672 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:17:04,882 INFO L231 Difference]: Finished difference. Result has 65 places, 91 transitions, 420 flow [2023-08-25 03:17:04,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=420, PETRI_PLACES=65, PETRI_TRANSITIONS=91} [2023-08-25 03:17:04,883 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 12 predicate places. [2023-08-25 03:17:04,884 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 91 transitions, 420 flow [2023-08-25 03:17:04,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.666666666666664) internal successors, (298), 6 states have internal predecessors, (298), 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) [2023-08-25 03:17:04,884 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:04,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:04,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 03:17:04,885 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 7 more)] === [2023-08-25 03:17:04,886 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:04,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1810622908, now seen corresponding path program 1 times [2023-08-25 03:17:04,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:04,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214048686] [2023-08-25 03:17:04,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:04,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:05,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:17:05,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:05,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214048686] [2023-08-25 03:17:05,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214048686] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:05,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:17:05,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:17:05,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261036215] [2023-08-25 03:17:05,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:05,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:05,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:05,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:05,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:17:05,133 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 142 [2023-08-25 03:17:05,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 91 transitions, 420 flow. Second operand has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 6 states have internal predecessors, (290), 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) [2023-08-25 03:17:05,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:05,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 142 [2023-08-25 03:17:05,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:06,802 INFO L124 PetriNetUnfolderBase]: 12130/18891 cut-off events. [2023-08-25 03:17:06,802 INFO L125 PetriNetUnfolderBase]: For 11932/11932 co-relation queries the response was YES. [2023-08-25 03:17:06,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54577 conditions, 18891 events. 12130/18891 cut-off events. For 11932/11932 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 118325 event pairs, 6190 based on Foata normal form. 324/18734 useless extension candidates. Maximal degree in co-relation 54563. Up to 13560 conditions per place. [2023-08-25 03:17:06,900 INFO L140 encePairwiseOnDemand]: 126/142 looper letters, 188 selfloop transitions, 46 changer transitions 0/234 dead transitions. [2023-08-25 03:17:06,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 234 transitions, 1408 flow [2023-08-25 03:17:06,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:06,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:06,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 454 transitions. [2023-08-25 03:17:06,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5328638497652582 [2023-08-25 03:17:06,902 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 454 transitions. [2023-08-25 03:17:06,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 454 transitions. [2023-08-25 03:17:06,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:06,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 454 transitions. [2023-08-25 03:17:06,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 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) [2023-08-25 03:17:06,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 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) [2023-08-25 03:17:06,906 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 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) [2023-08-25 03:17:06,906 INFO L175 Difference]: Start difference. First operand has 65 places, 91 transitions, 420 flow. Second operand 6 states and 454 transitions. [2023-08-25 03:17:06,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 234 transitions, 1408 flow [2023-08-25 03:17:06,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 234 transitions, 1358 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 03:17:06,918 INFO L231 Difference]: Finished difference. Result has 69 places, 136 transitions, 843 flow [2023-08-25 03:17:06,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=843, PETRI_PLACES=69, PETRI_TRANSITIONS=136} [2023-08-25 03:17:06,920 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 16 predicate places. [2023-08-25 03:17:06,920 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 136 transitions, 843 flow [2023-08-25 03:17:06,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 6 states have internal predecessors, (290), 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) [2023-08-25 03:17:06,920 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:06,920 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:06,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 03:17:06,924 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 7 more)] === [2023-08-25 03:17:06,924 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:06,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1635658449, now seen corresponding path program 1 times [2023-08-25 03:17:06,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:06,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350971822] [2023-08-25 03:17:06,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:06,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:07,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:17:07,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:07,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350971822] [2023-08-25 03:17:07,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350971822] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:07,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:17:07,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:17:07,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996127715] [2023-08-25 03:17:07,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:07,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:07,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:07,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:07,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:17:07,302 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 142 [2023-08-25 03:17:07,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 136 transitions, 843 flow. Second operand has 6 states, 6 states have (on average 48.666666666666664) internal successors, (292), 6 states have internal predecessors, (292), 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) [2023-08-25 03:17:07,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:07,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 142 [2023-08-25 03:17:07,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:09,127 INFO L124 PetriNetUnfolderBase]: 13974/21771 cut-off events. [2023-08-25 03:17:09,127 INFO L125 PetriNetUnfolderBase]: For 25602/25602 co-relation queries the response was YES. [2023-08-25 03:17:09,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71030 conditions, 21771 events. 13974/21771 cut-off events. For 25602/25602 co-relation queries the response was YES. Maximal size of possible extension queue 529. Compared 138894 event pairs, 7272 based on Foata normal form. 322/21538 useless extension candidates. Maximal degree in co-relation 71012. Up to 16316 conditions per place. [2023-08-25 03:17:09,387 INFO L140 encePairwiseOnDemand]: 126/142 looper letters, 217 selfloop transitions, 54 changer transitions 0/271 dead transitions. [2023-08-25 03:17:09,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 271 transitions, 1937 flow [2023-08-25 03:17:09,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:09,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:09,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 446 transitions. [2023-08-25 03:17:09,390 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5234741784037559 [2023-08-25 03:17:09,390 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 446 transitions. [2023-08-25 03:17:09,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 446 transitions. [2023-08-25 03:17:09,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:09,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 446 transitions. [2023-08-25 03:17:09,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 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) [2023-08-25 03:17:09,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 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) [2023-08-25 03:17:09,394 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 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) [2023-08-25 03:17:09,394 INFO L175 Difference]: Start difference. First operand has 69 places, 136 transitions, 843 flow. Second operand 6 states and 446 transitions. [2023-08-25 03:17:09,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 271 transitions, 1937 flow [2023-08-25 03:17:09,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 271 transitions, 1903 flow, removed 17 selfloop flow, removed 0 redundant places. [2023-08-25 03:17:09,469 INFO L231 Difference]: Finished difference. Result has 78 places, 181 transitions, 1328 flow [2023-08-25 03:17:09,469 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1328, PETRI_PLACES=78, PETRI_TRANSITIONS=181} [2023-08-25 03:17:09,471 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 25 predicate places. [2023-08-25 03:17:09,471 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 181 transitions, 1328 flow [2023-08-25 03:17:09,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.666666666666664) internal successors, (292), 6 states have internal predecessors, (292), 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) [2023-08-25 03:17:09,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:09,471 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:09,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 03:17:09,472 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 7 more)] === [2023-08-25 03:17:09,472 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:09,472 INFO L85 PathProgramCache]: Analyzing trace with hash -2084227161, now seen corresponding path program 1 times [2023-08-25 03:17:09,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:09,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548576247] [2023-08-25 03:17:09,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:09,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:09,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:17:09,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:09,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548576247] [2023-08-25 03:17:09,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548576247] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:09,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:17:09,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:17:09,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331053862] [2023-08-25 03:17:09,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:09,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:09,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:09,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:09,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:17:09,685 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 142 [2023-08-25 03:17:09,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 181 transitions, 1328 flow. Second operand has 6 states, 6 states have (on average 47.666666666666664) internal successors, (286), 6 states have internal predecessors, (286), 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) [2023-08-25 03:17:09,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:09,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 142 [2023-08-25 03:17:09,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:11,444 INFO L124 PetriNetUnfolderBase]: 12938/20180 cut-off events. [2023-08-25 03:17:11,444 INFO L125 PetriNetUnfolderBase]: For 45900/45900 co-relation queries the response was YES. [2023-08-25 03:17:11,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73763 conditions, 20180 events. 12938/20180 cut-off events. For 45900/45900 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 130102 event pairs, 5833 based on Foata normal form. 0/20180 useless extension candidates. Maximal degree in co-relation 73740. Up to 13817 conditions per place. [2023-08-25 03:17:11,581 INFO L140 encePairwiseOnDemand]: 136/142 looper letters, 741 selfloop transitions, 5 changer transitions 90/836 dead transitions. [2023-08-25 03:17:11,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 836 transitions, 8158 flow [2023-08-25 03:17:11,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:11,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:11,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 427 transitions. [2023-08-25 03:17:11,587 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5011737089201878 [2023-08-25 03:17:11,587 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 427 transitions. [2023-08-25 03:17:11,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 427 transitions. [2023-08-25 03:17:11,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:11,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 427 transitions. [2023-08-25 03:17:11,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 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) [2023-08-25 03:17:11,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 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) [2023-08-25 03:17:11,590 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 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) [2023-08-25 03:17:11,591 INFO L175 Difference]: Start difference. First operand has 78 places, 181 transitions, 1328 flow. Second operand 6 states and 427 transitions. [2023-08-25 03:17:11,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 836 transitions, 8158 flow [2023-08-25 03:17:11,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 836 transitions, 7858 flow, removed 150 selfloop flow, removed 0 redundant places. [2023-08-25 03:17:11,833 INFO L231 Difference]: Finished difference. Result has 82 places, 162 transitions, 1132 flow [2023-08-25 03:17:11,834 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=1266, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1132, PETRI_PLACES=82, PETRI_TRANSITIONS=162} [2023-08-25 03:17:11,834 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 29 predicate places. [2023-08-25 03:17:11,835 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 162 transitions, 1132 flow [2023-08-25 03:17:11,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 47.666666666666664) internal successors, (286), 6 states have internal predecessors, (286), 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) [2023-08-25 03:17:11,835 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:11,835 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:11,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 03:17:11,835 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 7 more)] === [2023-08-25 03:17:11,836 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:11,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1319023645, now seen corresponding path program 1 times [2023-08-25 03:17:11,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:11,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664592117] [2023-08-25 03:17:11,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:11,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:17:11,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 03:17:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:17:11,893 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 03:17:11,893 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 03:17:11,894 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2023-08-25 03:17:11,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2023-08-25 03:17:11,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2023-08-25 03:17:11,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 10 remaining) [2023-08-25 03:17:11,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-08-25 03:17:11,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2023-08-25 03:17:11,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2023-08-25 03:17:11,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2023-08-25 03:17:11,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2023-08-25 03:17:11,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2023-08-25 03:17:11,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 03:17:11,906 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-25 03:17:11,913 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 03:17:11,913 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 03:17:11,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:17:11 BasicIcfg [2023-08-25 03:17:11,954 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 03:17:11,955 INFO L158 Benchmark]: Toolchain (without parser) took 14334.48ms. Allocated memory was 383.8MB in the beginning and 2.3GB in the end (delta: 1.9GB). Free memory was 358.7MB in the beginning and 1.1GB in the end (delta: -762.6MB). Peak memory consumption was 1.2GB. Max. memory is 16.0GB. [2023-08-25 03:17:11,955 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 383.8MB. Free memory is still 360.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:17:11,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.38ms. Allocated memory is still 383.8MB. Free memory was 358.7MB in the beginning and 340.4MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-25 03:17:11,959 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.01ms. Allocated memory is still 383.8MB. Free memory was 340.4MB in the beginning and 338.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:17:11,959 INFO L158 Benchmark]: Boogie Preprocessor took 34.58ms. Allocated memory is still 383.8MB. Free memory was 338.2MB in the beginning and 336.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:17:11,959 INFO L158 Benchmark]: RCFGBuilder took 290.03ms. Allocated memory is still 383.8MB. Free memory was 336.7MB in the beginning and 322.5MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-25 03:17:11,960 INFO L158 Benchmark]: TraceAbstraction took 13494.37ms. Allocated memory was 383.8MB in the beginning and 2.3GB in the end (delta: 1.9GB). Free memory was 322.0MB in the beginning and 1.1GB in the end (delta: -799.2MB). Peak memory consumption was 1.2GB. Max. memory is 16.0GB. [2023-08-25 03:17:11,961 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 383.8MB. Free memory is still 360.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 451.38ms. Allocated memory is still 383.8MB. Free memory was 358.7MB in the beginning and 340.4MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 57.01ms. Allocated memory is still 383.8MB. Free memory was 340.4MB in the beginning and 338.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 34.58ms. Allocated memory is still 383.8MB. Free memory was 338.2MB in the beginning and 336.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 290.03ms. Allocated memory is still 383.8MB. Free memory was 336.7MB in the beginning and 322.5MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 13494.37ms. Allocated memory was 383.8MB in the beginning and 2.3GB in the end (delta: 1.9GB). Free memory was 322.0MB in the beginning and 1.1GB in the end (delta: -799.2MB). Peak memory consumption was 1.2GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 100 PlacesBefore, 53 PlacesAfterwards, 93 TransitionsBefore, 46 TransitionsAfterwards, 3696 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 47 TotalNumberOfCompositions, 17147 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2645, independent: 2178, independent conditional: 0, independent unconditional: 2178, dependent: 467, dependent conditional: 0, dependent unconditional: 467, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1432, independent: 1375, independent conditional: 0, independent unconditional: 1375, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2645, independent: 803, independent conditional: 0, independent unconditional: 803, dependent: 410, dependent conditional: 0, dependent unconditional: 410, unknown: 1432, unknown conditional: 0, unknown unconditional: 1432] , Statistics on independence cache: Total cache size (in pairs): 161, Positive cache size: 120, Positive conditional cache size: 0, Positive unconditional cache size: 120, Negative cache size: 41, Negative conditional cache size: 0, Negative unconditional cache size: 41, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 684]: Data race detected Data race detected The following path leads to a data race: [L679-L682] 0 struct { int x; int y; } data; [L688] 0 pthread_t id, id2; [L689] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, id={5:0}, id={6:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L684] EXPR 1 data.x VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] [L690] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}, id={5:0}, id={6:0}, pthread_create(&id2, ((void *)0), t_fun, ((void *)0))=0] [L684] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] [L684] 2 data.x VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] [L684] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data.x++=0, data.x++=9, data.x=0, data={1:0}] Now there is a data race (on the heap) between C: data.x++ [684] and C: data.x++ [684] - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 684]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 121 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 13.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 252 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 252 mSDsluCounter, 122 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 310 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1810 IncrementalHoareTripleChecker+Invalid, 2120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 310 mSolverCounterUnsat, 122 mSDtfsCounter, 1810 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1328occurred in iteration=4, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 480 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-25 03:17:12,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...