/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 --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -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/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:58:06,071 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:58:06,118 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 17:58:06,125 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:58:06,126 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:58:06,154 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:58:06,154 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:58:06,155 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:58:06,155 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:58:06,155 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:58:06,155 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:58:06,156 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:58:06,156 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:58:06,156 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:58:06,156 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:58:06,157 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:58:06,157 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:58:06,157 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:58:06,157 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:58:06,157 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:58:06,158 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:58:06,162 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:58:06,162 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:58:06,163 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:58:06,165 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:58:06,166 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:58:06,166 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:58:06,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:58:06,166 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:58:06,166 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:58:06,167 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:58:06,167 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:58:06,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:58:06,167 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:58:06,167 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:58:06,167 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:58:06,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:58:06,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:58:06,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:58:06,409 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:58:06,409 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:58:06,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2023-08-25 17:58:07,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:58:07,605 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:58:07,605 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2023-08-25 17:58:07,615 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e72e3006/444ccf7f21b44718b7c65a9cbf3130c5/FLAG79f13cd3b [2023-08-25 17:58:07,628 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e72e3006/444ccf7f21b44718b7c65a9cbf3130c5 [2023-08-25 17:58:07,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:58:07,635 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:58:07,639 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:58:07,641 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:58:07,643 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:58:07,643 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:58:07" (1/1) ... [2023-08-25 17:58:07,644 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35ad960c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:07, skipping insertion in model container [2023-08-25 17:58:07,644 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:58:07" (1/1) ... [2023-08-25 17:58:07,666 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:58:07,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:58:07,919 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:58:07,942 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-25 17:58:07,943 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-25 17:58:07,956 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:58:07,984 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:58:07,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:07 WrapperNode [2023-08-25 17:58:07,986 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:58:07,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:58:07,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:58:07,987 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:58:07,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:07" (1/1) ... [2023-08-25 17:58:08,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:07" (1/1) ... [2023-08-25 17:58:08,030 INFO L138 Inliner]: procedures = 162, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2023-08-25 17:58:08,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:58:08,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:58:08,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:58:08,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:58:08,036 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:07" (1/1) ... [2023-08-25 17:58:08,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:07" (1/1) ... [2023-08-25 17:58:08,040 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:07" (1/1) ... [2023-08-25 17:58:08,040 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:07" (1/1) ... [2023-08-25 17:58:08,052 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:07" (1/1) ... [2023-08-25 17:58:08,053 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:07" (1/1) ... [2023-08-25 17:58:08,054 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:07" (1/1) ... [2023-08-25 17:58:08,054 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:07" (1/1) ... [2023-08-25 17:58:08,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:58:08,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:58:08,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:58:08,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:58:08,056 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:07" (1/1) ... [2023-08-25 17:58:08,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:58:08,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:58:08,134 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 17:58:08,139 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 17:58:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:58:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:58:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:58:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:58:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:58:08,158 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:58:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:58:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:58:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:58:08,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:58:08,159 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 17:58:08,283 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:58:08,284 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:58:08,436 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:58:08,440 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:58:08,441 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:58:08,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:58:08 BoogieIcfgContainer [2023-08-25 17:58:08,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:58:08,443 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:58:08,444 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:58:08,446 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:58:08,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:58:07" (1/3) ... [2023-08-25 17:58:08,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3cd766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:58:08, skipping insertion in model container [2023-08-25 17:58:08,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:07" (2/3) ... [2023-08-25 17:58:08,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3cd766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:58:08, skipping insertion in model container [2023-08-25 17:58:08,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:58:08" (3/3) ... [2023-08-25 17:58:08,448 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2023-08-25 17:58:08,459 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:58:08,459 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-25 17:58:08,460 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:58:08,513 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 17:58:08,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 82 transitions, 169 flow [2023-08-25 17:58:08,624 INFO L124 PetriNetUnfolderBase]: 2/81 cut-off events. [2023-08-25 17:58:08,624 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:58:08,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-08-25 17:58:08,631 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 82 transitions, 169 flow [2023-08-25 17:58:08,637 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 81 transitions, 165 flow [2023-08-25 17:58:08,639 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:58:08,650 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 81 transitions, 165 flow [2023-08-25 17:58:08,652 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 81 transitions, 165 flow [2023-08-25 17:58:08,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 81 transitions, 165 flow [2023-08-25 17:58:08,669 INFO L124 PetriNetUnfolderBase]: 2/81 cut-off events. [2023-08-25 17:58:08,669 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:58:08,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-08-25 17:58:08,670 INFO L119 LiptonReduction]: Number of co-enabled transitions 1110 [2023-08-25 17:58:10,468 INFO L134 LiptonReduction]: Checked pairs total: 3970 [2023-08-25 17:58:10,469 INFO L136 LiptonReduction]: Total number of compositions: 59 [2023-08-25 17:58:10,487 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:58:10,493 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;@9160885, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:58:10,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-25 17:58:10,495 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:58:10,496 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-08-25 17:58:10,496 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:58:10,496 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:10,496 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:10,496 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 3 more)] === [2023-08-25 17:58:10,499 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:10,499 INFO L85 PathProgramCache]: Analyzing trace with hash -160439154, now seen corresponding path program 1 times [2023-08-25 17:58:10,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:10,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874101485] [2023-08-25 17:58:10,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:10,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:10,634 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 17:58:10,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:10,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874101485] [2023-08-25 17:58:10,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874101485] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:10,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:10,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:58:10,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275555277] [2023-08-25 17:58:10,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:10,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:58:10,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:10,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:58:10,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:58:10,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 141 [2023-08-25 17:58:10,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 28 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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 17:58:10,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:10,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 141 [2023-08-25 17:58:10,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:10,776 INFO L124 PetriNetUnfolderBase]: 84/216 cut-off events. [2023-08-25 17:58:10,776 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:58:10,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 216 events. 84/216 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 854 event pairs, 75 based on Foata normal form. 7/179 useless extension candidates. Maximal degree in co-relation 403. Up to 180 conditions per place. [2023-08-25 17:58:10,778 INFO L140 encePairwiseOnDemand]: 136/141 looper letters, 26 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2023-08-25 17:58:10,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 34 transitions, 129 flow [2023-08-25 17:58:10,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:58:10,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:58:10,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 229 transitions. [2023-08-25 17:58:10,795 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.541371158392435 [2023-08-25 17:58:10,795 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 229 transitions. [2023-08-25 17:58:10,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 229 transitions. [2023-08-25 17:58:10,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:10,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 229 transitions. [2023-08-25 17:58:10,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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 17:58:10,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 17:58:10,808 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 17:58:10,814 INFO L175 Difference]: Start difference. First operand has 31 places, 28 transitions, 59 flow. Second operand 3 states and 229 transitions. [2023-08-25 17:58:10,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 34 transitions, 129 flow [2023-08-25 17:58:10,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 34 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:58:10,817 INFO L231 Difference]: Finished difference. Result has 33 places, 29 transitions, 75 flow [2023-08-25 17:58:10,818 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=33, PETRI_TRANSITIONS=29} [2023-08-25 17:58:10,820 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 2 predicate places. [2023-08-25 17:58:10,821 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 29 transitions, 75 flow [2023-08-25 17:58:10,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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 17:58:10,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:10,821 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:10,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:58:10,821 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 3 more)] === [2023-08-25 17:58:10,822 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:10,822 INFO L85 PathProgramCache]: Analyzing trace with hash -178737530, now seen corresponding path program 1 times [2023-08-25 17:58:10,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:10,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676262480] [2023-08-25 17:58:10,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:10,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:10,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:10,896 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 17:58:10,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:10,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676262480] [2023-08-25 17:58:10,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676262480] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:10,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:10,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:58:10,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640110985] [2023-08-25 17:58:10,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:10,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:58:10,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:10,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:58:10,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:58:10,899 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 141 [2023-08-25 17:58:10,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 29 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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 17:58:10,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:10,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 141 [2023-08-25 17:58:10,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:10,973 INFO L124 PetriNetUnfolderBase]: 86/223 cut-off events. [2023-08-25 17:58:10,974 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2023-08-25 17:58:10,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 466 conditions, 223 events. 86/223 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 875 event pairs, 59 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 456. Up to 171 conditions per place. [2023-08-25 17:58:10,975 INFO L140 encePairwiseOnDemand]: 136/141 looper letters, 30 selfloop transitions, 5 changer transitions 4/44 dead transitions. [2023-08-25 17:58:10,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 44 transitions, 190 flow [2023-08-25 17:58:10,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:58:10,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:58:10,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 239 transitions. [2023-08-25 17:58:10,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5650118203309693 [2023-08-25 17:58:10,978 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 239 transitions. [2023-08-25 17:58:10,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 239 transitions. [2023-08-25 17:58:10,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:10,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 239 transitions. [2023-08-25 17:58:10,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 17:58:10,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 17:58:10,980 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 17:58:10,980 INFO L175 Difference]: Start difference. First operand has 33 places, 29 transitions, 75 flow. Second operand 3 states and 239 transitions. [2023-08-25 17:58:10,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 44 transitions, 190 flow [2023-08-25 17:58:10,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 44 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:58:10,981 INFO L231 Difference]: Finished difference. Result has 35 places, 32 transitions, 103 flow [2023-08-25 17:58:10,981 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=35, PETRI_TRANSITIONS=32} [2023-08-25 17:58:10,982 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2023-08-25 17:58:10,982 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 32 transitions, 103 flow [2023-08-25 17:58:10,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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 17:58:10,982 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:10,983 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:10,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:58:10,983 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 3 more)] === [2023-08-25 17:58:10,983 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:10,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1514750559, now seen corresponding path program 1 times [2023-08-25 17:58:10,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:10,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529218971] [2023-08-25 17:58:10,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:10,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:11,045 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 17:58:11,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:11,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529218971] [2023-08-25 17:58:11,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529218971] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:11,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:11,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 17:58:11,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63542439] [2023-08-25 17:58:11,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:11,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:58:11,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:11,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:58:11,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:58:11,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 141 [2023-08-25 17:58:11,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 32 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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 17:58:11,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:11,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 141 [2023-08-25 17:58:11,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:11,098 INFO L124 PetriNetUnfolderBase]: 35/134 cut-off events. [2023-08-25 17:58:11,098 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2023-08-25 17:58:11,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 134 events. 35/134 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 456 event pairs, 10 based on Foata normal form. 17/140 useless extension candidates. Maximal degree in co-relation 300. Up to 64 conditions per place. [2023-08-25 17:58:11,099 INFO L140 encePairwiseOnDemand]: 133/141 looper letters, 19 selfloop transitions, 6 changer transitions 14/42 dead transitions. [2023-08-25 17:58:11,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 42 transitions, 196 flow [2023-08-25 17:58:11,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:58:11,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:58:11,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2023-08-25 17:58:11,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5390070921985816 [2023-08-25 17:58:11,101 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 228 transitions. [2023-08-25 17:58:11,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 228 transitions. [2023-08-25 17:58:11,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:11,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 228 transitions. [2023-08-25 17:58:11,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 17:58:11,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 17:58:11,103 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 17:58:11,103 INFO L175 Difference]: Start difference. First operand has 35 places, 32 transitions, 103 flow. Second operand 3 states and 228 transitions. [2023-08-25 17:58:11,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 42 transitions, 196 flow [2023-08-25 17:58:11,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 42 transitions, 164 flow, removed 6 selfloop flow, removed 5 redundant places. [2023-08-25 17:58:11,104 INFO L231 Difference]: Finished difference. Result has 31 places, 22 transitions, 68 flow [2023-08-25 17:58:11,104 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=31, PETRI_TRANSITIONS=22} [2023-08-25 17:58:11,105 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 0 predicate places. [2023-08-25 17:58:11,105 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 68 flow [2023-08-25 17:58:11,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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 17:58:11,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:11,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:11,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:58:11,106 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 3 more)] === [2023-08-25 17:58:11,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:11,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1053733067, now seen corresponding path program 1 times [2023-08-25 17:58:11,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:11,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683108595] [2023-08-25 17:58:11,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:11,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:11,126 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 17:58:11,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:11,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683108595] [2023-08-25 17:58:11,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683108595] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:11,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:11,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:58:11,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828962864] [2023-08-25 17:58:11,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:11,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:58:11,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:11,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:58:11,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:58:11,128 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 141 [2023-08-25 17:58:11,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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 17:58:11,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:11,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 141 [2023-08-25 17:58:11,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:11,156 INFO L124 PetriNetUnfolderBase]: 14/71 cut-off events. [2023-08-25 17:58:11,156 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-08-25 17:58:11,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 71 events. 14/71 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 160 event pairs, 10 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 166. Up to 44 conditions per place. [2023-08-25 17:58:11,157 INFO L140 encePairwiseOnDemand]: 139/141 looper letters, 16 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2023-08-25 17:58:11,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 22 transitions, 105 flow [2023-08-25 17:58:11,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:58:11,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:58:11,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2023-08-25 17:58:11,158 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5295508274231678 [2023-08-25 17:58:11,158 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 224 transitions. [2023-08-25 17:58:11,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions. [2023-08-25 17:58:11,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:11,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions. [2023-08-25 17:58:11,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 17:58:11,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 17:58:11,160 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 17:58:11,160 INFO L175 Difference]: Start difference. First operand has 31 places, 22 transitions, 68 flow. Second operand 3 states and 224 transitions. [2023-08-25 17:58:11,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 22 transitions, 105 flow [2023-08-25 17:58:11,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 22 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:58:11,161 INFO L231 Difference]: Finished difference. Result has 26 places, 21 transitions, 62 flow [2023-08-25 17:58:11,161 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=26, PETRI_TRANSITIONS=21} [2023-08-25 17:58:11,162 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2023-08-25 17:58:11,162 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 21 transitions, 62 flow [2023-08-25 17:58:11,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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 17:58:11,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:11,162 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:11,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 17:58:11,162 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 3 more)] === [2023-08-25 17:58:11,163 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:11,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1694013567, now seen corresponding path program 1 times [2023-08-25 17:58:11,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:11,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369486261] [2023-08-25 17:58:11,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:11,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:11,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:11,221 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 17:58:11,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:11,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369486261] [2023-08-25 17:58:11,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369486261] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:11,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:11,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:58:11,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547001957] [2023-08-25 17:58:11,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:11,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:58:11,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:11,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:58:11,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:58:11,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 141 [2023-08-25 17:58:11,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 17:58:11,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:11,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 141 [2023-08-25 17:58:11,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:11,249 INFO L124 PetriNetUnfolderBase]: 14/80 cut-off events. [2023-08-25 17:58:11,249 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-08-25 17:58:11,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 80 events. 14/80 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 210 event pairs, 9 based on Foata normal form. 4/84 useless extension candidates. Maximal degree in co-relation 176. Up to 39 conditions per place. [2023-08-25 17:58:11,249 INFO L140 encePairwiseOnDemand]: 138/141 looper letters, 14 selfloop transitions, 2 changer transitions 7/27 dead transitions. [2023-08-25 17:58:11,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 27 transitions, 126 flow [2023-08-25 17:58:11,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:58:11,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:58:11,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 243 transitions. [2023-08-25 17:58:11,253 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.574468085106383 [2023-08-25 17:58:11,253 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 243 transitions. [2023-08-25 17:58:11,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 243 transitions. [2023-08-25 17:58:11,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:11,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 243 transitions. [2023-08-25 17:58:11,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 17:58:11,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 17:58:11,255 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 17:58:11,255 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 62 flow. Second operand 3 states and 243 transitions. [2023-08-25 17:58:11,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 27 transitions, 126 flow [2023-08-25 17:58:11,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 27 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:58:11,256 INFO L231 Difference]: Finished difference. Result has 28 places, 20 transitions, 65 flow [2023-08-25 17:58:11,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=28, PETRI_TRANSITIONS=20} [2023-08-25 17:58:11,256 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2023-08-25 17:58:11,257 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 20 transitions, 65 flow [2023-08-25 17:58:11,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 17:58:11,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:11,257 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 17:58:11,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 17:58:11,257 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 3 more)] === [2023-08-25 17:58:11,257 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:11,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1291759188, now seen corresponding path program 1 times [2023-08-25 17:58:11,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:11,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4400190] [2023-08-25 17:58:11,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:11,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:11,426 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 17:58:11,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:11,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4400190] [2023-08-25 17:58:11,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4400190] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:11,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:11,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 17:58:11,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858404810] [2023-08-25 17:58:11,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:11,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 17:58:11,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:11,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 17:58:11,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 17:58:11,427 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 141 [2023-08-25 17:58:11,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 20 transitions, 65 flow. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 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 17:58:11,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:11,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 141 [2023-08-25 17:58:11,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:11,443 INFO L124 PetriNetUnfolderBase]: 1/16 cut-off events. [2023-08-25 17:58:11,443 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 17:58:11,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 16 events. 1/16 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 3/19 useless extension candidates. Maximal degree in co-relation 35. Up to 12 conditions per place. [2023-08-25 17:58:11,444 INFO L140 encePairwiseOnDemand]: 138/141 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2023-08-25 17:58:11,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 14 transitions, 70 flow [2023-08-25 17:58:11,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 17:58:11,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 17:58:11,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 239 transitions. [2023-08-25 17:58:11,445 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4237588652482269 [2023-08-25 17:58:11,445 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 239 transitions. [2023-08-25 17:58:11,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 239 transitions. [2023-08-25 17:58:11,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:11,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 239 transitions. [2023-08-25 17:58:11,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 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 17:58:11,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 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 17:58:11,447 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 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 17:58:11,447 INFO L175 Difference]: Start difference. First operand has 28 places, 20 transitions, 65 flow. Second operand 4 states and 239 transitions. [2023-08-25 17:58:11,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 14 transitions, 70 flow [2023-08-25 17:58:11,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 14 transitions, 63 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 17:58:11,448 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2023-08-25 17:58:11,448 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2023-08-25 17:58:11,448 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -9 predicate places. [2023-08-25 17:58:11,448 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2023-08-25 17:58:11,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 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 17:58:11,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2023-08-25 17:58:11,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2023-08-25 17:58:11,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (3 of 6 remaining) [2023-08-25 17:58:11,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-08-25 17:58:11,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2023-08-25 17:58:11,452 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2023-08-25 17:58:11,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 17:58:11,452 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-25 17:58:11,455 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:58:11,455 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:58:11,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:58:11 BasicIcfg [2023-08-25 17:58:11,457 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:58:11,457 INFO L158 Benchmark]: Toolchain (without parser) took 3822.27ms. Allocated memory was 379.6MB in the beginning and 480.2MB in the end (delta: 100.7MB). Free memory was 353.9MB in the beginning and 300.0MB in the end (delta: 53.9MB). Peak memory consumption was 155.4MB. Max. memory is 16.0GB. [2023-08-25 17:58:11,458 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 379.6MB. Free memory was 355.9MB in the beginning and 355.7MB in the end (delta: 164.1kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:58:11,458 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.34ms. Allocated memory is still 379.6MB. Free memory was 353.6MB in the beginning and 334.2MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 17:58:11,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.39ms. Allocated memory is still 379.6MB. Free memory was 333.9MB in the beginning and 332.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:58:11,458 INFO L158 Benchmark]: Boogie Preprocessor took 24.77ms. Allocated memory is still 379.6MB. Free memory was 332.1MB in the beginning and 330.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:58:11,459 INFO L158 Benchmark]: RCFGBuilder took 386.36ms. Allocated memory is still 379.6MB. Free memory was 330.7MB in the beginning and 317.5MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 17:58:11,459 INFO L158 Benchmark]: TraceAbstraction took 3013.40ms. Allocated memory was 379.6MB in the beginning and 480.2MB in the end (delta: 100.7MB). Free memory was 316.6MB in the beginning and 300.0MB in the end (delta: 16.6MB). Peak memory consumption was 117.6MB. Max. memory is 16.0GB. [2023-08-25 17:58:11,460 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 379.6MB. Free memory was 355.9MB in the beginning and 355.7MB in the end (delta: 164.1kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 347.34ms. Allocated memory is still 379.6MB. Free memory was 353.6MB in the beginning and 334.2MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.39ms. Allocated memory is still 379.6MB. Free memory was 333.9MB in the beginning and 332.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 24.77ms. Allocated memory is still 379.6MB. Free memory was 332.1MB in the beginning and 330.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 386.36ms. Allocated memory is still 379.6MB. Free memory was 330.7MB in the beginning and 317.5MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 3013.40ms. Allocated memory was 379.6MB in the beginning and 480.2MB in the end (delta: 100.7MB). Free memory was 316.6MB in the beginning and 300.0MB in the end (delta: 16.6MB). Peak memory consumption was 117.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 83 PlacesBefore, 31 PlacesAfterwards, 81 TransitionsBefore, 28 TransitionsAfterwards, 1110 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 59 TotalNumberOfCompositions, 3970 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1322, independent: 1037, independent conditional: 0, independent unconditional: 1037, dependent: 285, dependent conditional: 0, dependent unconditional: 285, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 539, independent: 498, independent conditional: 0, independent unconditional: 498, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1322, independent: 539, independent conditional: 0, independent unconditional: 539, dependent: 244, dependent conditional: 0, dependent unconditional: 244, unknown: 539, unknown conditional: 0, unknown unconditional: 539] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 98 locations, 6 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: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 220 IncrementalHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 11 mSDtfsCounter, 220 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=2, InterpolantAutomatonStates: 19, 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, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 207 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 17:58:11,473 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...