/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/06-symbeq_13-equ_proc_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:26:06,597 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:26:06,667 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 17:26:06,670 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:26:06,671 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:26:06,700 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:26:06,701 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:26:06,703 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:26:06,704 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:26:06,708 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:26:06,709 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:26:06,709 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:26:06,709 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:26:06,709 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:26:06,709 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:26:06,710 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:26:06,710 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:26:06,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:26:06,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:26:06,710 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:26:06,710 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:26:06,712 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:26:06,712 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:26:06,713 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:26:06,713 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:26:06,713 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:26:06,713 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:26:06,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:26:06,713 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:26:06,714 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:26:06,714 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:26:06,714 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:26:06,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:26:06,714 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:26:06,714 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:26:06,714 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:26:06,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:26:07,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:26:07,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:26:07,004 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:26:07,009 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:26:07,010 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_13-equ_proc_nr.i [2023-08-25 17:26:08,085 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:26:08,289 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:26:08,289 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_13-equ_proc_nr.i [2023-08-25 17:26:08,301 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e72ebd372/f851722e181841c2a03dfd68145d0cbb/FLAG15cbaacd8 [2023-08-25 17:26:08,321 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e72ebd372/f851722e181841c2a03dfd68145d0cbb [2023-08-25 17:26:08,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:26:08,328 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:26:08,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:26:08,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:26:08,330 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:26:08,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:26:08" (1/1) ... [2023-08-25 17:26:08,331 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25476069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:08, skipping insertion in model container [2023-08-25 17:26:08,331 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:26:08" (1/1) ... [2023-08-25 17:26:08,374 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:26:08,634 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:26:08,643 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:26:08,665 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [245] [2023-08-25 17:26:08,666 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [245] [2023-08-25 17:26:08,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:26:08,738 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:26:08,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:08 WrapperNode [2023-08-25 17:26:08,739 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:26:08,740 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:26:08,740 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:26:08,740 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:26:08,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:08" (1/1) ... [2023-08-25 17:26:08,766 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:08" (1/1) ... [2023-08-25 17:26:08,787 INFO L138 Inliner]: procedures = 266, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2023-08-25 17:26:08,787 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:26:08,788 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:26:08,788 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:26:08,788 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:26:08,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:08" (1/1) ... [2023-08-25 17:26:08,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:08" (1/1) ... [2023-08-25 17:26:08,802 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:08" (1/1) ... [2023-08-25 17:26:08,803 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:08" (1/1) ... [2023-08-25 17:26:08,810 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:08" (1/1) ... [2023-08-25 17:26:08,811 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:08" (1/1) ... [2023-08-25 17:26:08,812 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:08" (1/1) ... [2023-08-25 17:26:08,812 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:08" (1/1) ... [2023-08-25 17:26:08,814 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:26:08,814 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:26:08,814 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:26:08,814 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:26:08,815 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:08" (1/1) ... [2023-08-25 17:26:08,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:26:08,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:26:08,834 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 17:26:08,861 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 17:26:08,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:26:08,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:26:08,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:26:08,865 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:26:08,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:26:08,865 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:26:08,865 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:26:08,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:26:08,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:26:08,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:26:08,866 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 17:26:08,972 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:26:08,973 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:26:09,136 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:26:09,140 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:26:09,140 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:26:09,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:26:09 BoogieIcfgContainer [2023-08-25 17:26:09,142 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:26:09,143 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:26:09,143 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:26:09,145 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:26:09,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:26:08" (1/3) ... [2023-08-25 17:26:09,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0208c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:26:09, skipping insertion in model container [2023-08-25 17:26:09,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:08" (2/3) ... [2023-08-25 17:26:09,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0208c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:26:09, skipping insertion in model container [2023-08-25 17:26:09,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:26:09" (3/3) ... [2023-08-25 17:26:09,147 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2023-08-25 17:26:09,157 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:26:09,157 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-25 17:26:09,157 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:26:09,218 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 17:26:09,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 163 flow [2023-08-25 17:26:09,281 INFO L124 PetriNetUnfolderBase]: 1/78 cut-off events. [2023-08-25 17:26:09,282 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:26:09,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 1/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-08-25 17:26:09,285 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 79 transitions, 163 flow [2023-08-25 17:26:09,291 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 78 transitions, 159 flow [2023-08-25 17:26:09,294 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:26:09,314 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 78 transitions, 159 flow [2023-08-25 17:26:09,316 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 78 transitions, 159 flow [2023-08-25 17:26:09,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 159 flow [2023-08-25 17:26:09,331 INFO L124 PetriNetUnfolderBase]: 1/78 cut-off events. [2023-08-25 17:26:09,331 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:26:09,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 1/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-08-25 17:26:09,332 INFO L119 LiptonReduction]: Number of co-enabled transitions 660 [2023-08-25 17:26:11,931 INFO L134 LiptonReduction]: Checked pairs total: 2759 [2023-08-25 17:26:11,932 INFO L136 LiptonReduction]: Total number of compositions: 58 [2023-08-25 17:26:11,942 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:26:11,946 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;@1459bd04, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:26:11,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-25 17:26:11,950 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:26:11,950 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2023-08-25 17:26:11,950 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:26:11,950 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:11,950 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:11,951 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:26:11,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:11,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1579949932, now seen corresponding path program 1 times [2023-08-25 17:26:11,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:11,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054164207] [2023-08-25 17:26:11,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:11,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:12,386 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 17:26:12,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:12,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054164207] [2023-08-25 17:26:12,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054164207] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:12,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:12,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:26:12,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091791058] [2023-08-25 17:26:12,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:12,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:26:12,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:12,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:26:12,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:26:12,416 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 137 [2023-08-25 17:26:12,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 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 17:26:12,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:12,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 137 [2023-08-25 17:26:12,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:12,595 INFO L124 PetriNetUnfolderBase]: 102/228 cut-off events. [2023-08-25 17:26:12,595 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:26:12,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 228 events. 102/228 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 855 event pairs, 39 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 452. Up to 169 conditions per place. [2023-08-25 17:26:12,598 INFO L140 encePairwiseOnDemand]: 127/137 looper letters, 31 selfloop transitions, 21 changer transitions 8/60 dead transitions. [2023-08-25 17:26:12,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 60 transitions, 243 flow [2023-08-25 17:26:12,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:26:12,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:26:12,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 427 transitions. [2023-08-25 17:26:12,608 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5194647201946472 [2023-08-25 17:26:12,608 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 427 transitions. [2023-08-25 17:26:12,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 427 transitions. [2023-08-25 17:26:12,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:12,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 427 transitions. [2023-08-25 17:26:12,614 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 17:26:12,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 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 17:26:12,617 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 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 17:26:12,618 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 6 states and 427 transitions. [2023-08-25 17:26:12,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 60 transitions, 243 flow [2023-08-25 17:26:12,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 60 transitions, 242 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:26:12,621 INFO L231 Difference]: Finished difference. Result has 32 places, 40 transitions, 166 flow [2023-08-25 17:26:12,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=166, PETRI_PLACES=32, PETRI_TRANSITIONS=40} [2023-08-25 17:26:12,624 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 8 predicate places. [2023-08-25 17:26:12,624 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 40 transitions, 166 flow [2023-08-25 17:26:12,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 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 17:26:12,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:12,625 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:12,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:26:12,625 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:26:12,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:12,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1761623214, now seen corresponding path program 1 times [2023-08-25 17:26:12,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:12,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407075400] [2023-08-25 17:26:12,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:12,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:12,761 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 17:26:12,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:12,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407075400] [2023-08-25 17:26:12,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407075400] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:12,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:12,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:26:12,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565719333] [2023-08-25 17:26:12,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:12,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:26:12,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:12,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:26:12,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:26:12,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-25 17:26:12,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 40 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 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 17:26:12,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:12,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-25 17:26:12,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:12,900 INFO L124 PetriNetUnfolderBase]: 122/272 cut-off events. [2023-08-25 17:26:12,900 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2023-08-25 17:26:12,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 783 conditions, 272 events. 122/272 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1074 event pairs, 34 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 770. Up to 214 conditions per place. [2023-08-25 17:26:12,903 INFO L140 encePairwiseOnDemand]: 127/137 looper letters, 47 selfloop transitions, 25 changer transitions 8/80 dead transitions. [2023-08-25 17:26:12,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 80 transitions, 464 flow [2023-08-25 17:26:12,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:26:12,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:26:12,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 373 transitions. [2023-08-25 17:26:12,905 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4537712895377129 [2023-08-25 17:26:12,905 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 373 transitions. [2023-08-25 17:26:12,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 373 transitions. [2023-08-25 17:26:12,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:12,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 373 transitions. [2023-08-25 17:26:12,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 62.166666666666664) internal successors, (373), 6 states have internal predecessors, (373), 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 17:26:12,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 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 17:26:12,908 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 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 17:26:12,908 INFO L175 Difference]: Start difference. First operand has 32 places, 40 transitions, 166 flow. Second operand 6 states and 373 transitions. [2023-08-25 17:26:12,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 80 transitions, 464 flow [2023-08-25 17:26:12,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 80 transitions, 464 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:26:12,911 INFO L231 Difference]: Finished difference. Result has 41 places, 60 transitions, 344 flow [2023-08-25 17:26:12,911 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=344, PETRI_PLACES=41, PETRI_TRANSITIONS=60} [2023-08-25 17:26:12,911 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 17 predicate places. [2023-08-25 17:26:12,912 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 60 transitions, 344 flow [2023-08-25 17:26:12,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 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 17:26:12,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:12,912 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:12,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:26:12,912 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:26:12,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:12,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1462696189, now seen corresponding path program 1 times [2023-08-25 17:26:12,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:12,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084732087] [2023-08-25 17:26:12,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:12,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:13,307 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 17:26:13,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:13,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084732087] [2023-08-25 17:26:13,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084732087] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:13,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:13,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:26:13,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575966911] [2023-08-25 17:26:13,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:13,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:26:13,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:13,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:26:13,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:26:13,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-25 17:26:13,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 60 transitions, 344 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:13,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:13,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-25 17:26:13,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:13,565 INFO L124 PetriNetUnfolderBase]: 210/488 cut-off events. [2023-08-25 17:26:13,565 INFO L125 PetriNetUnfolderBase]: For 399/399 co-relation queries the response was YES. [2023-08-25 17:26:13,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1783 conditions, 488 events. 210/488 cut-off events. For 399/399 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2552 event pairs, 27 based on Foata normal form. 0/456 useless extension candidates. Maximal degree in co-relation 1765. Up to 244 conditions per place. [2023-08-25 17:26:13,569 INFO L140 encePairwiseOnDemand]: 125/137 looper letters, 118 selfloop transitions, 31 changer transitions 24/173 dead transitions. [2023-08-25 17:26:13,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 173 transitions, 1326 flow [2023-08-25 17:26:13,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 17:26:13,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 17:26:13,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 483 transitions. [2023-08-25 17:26:13,570 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35255474452554747 [2023-08-25 17:26:13,570 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 483 transitions. [2023-08-25 17:26:13,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 483 transitions. [2023-08-25 17:26:13,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:13,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 483 transitions. [2023-08-25 17:26:13,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 48.3) internal successors, (483), 10 states have internal predecessors, (483), 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 17:26:13,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 17:26:13,574 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 17:26:13,574 INFO L175 Difference]: Start difference. First operand has 41 places, 60 transitions, 344 flow. Second operand 10 states and 483 transitions. [2023-08-25 17:26:13,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 173 transitions, 1326 flow [2023-08-25 17:26:13,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 173 transitions, 1236 flow, removed 45 selfloop flow, removed 0 redundant places. [2023-08-25 17:26:13,580 INFO L231 Difference]: Finished difference. Result has 57 places, 88 transitions, 642 flow [2023-08-25 17:26:13,581 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=642, PETRI_PLACES=57, PETRI_TRANSITIONS=88} [2023-08-25 17:26:13,581 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 33 predicate places. [2023-08-25 17:26:13,581 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 88 transitions, 642 flow [2023-08-25 17:26:13,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:13,582 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:13,582 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:13,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:26:13,582 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:26:13,582 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:13,582 INFO L85 PathProgramCache]: Analyzing trace with hash 260291229, now seen corresponding path program 2 times [2023-08-25 17:26:13,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:13,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908082277] [2023-08-25 17:26:13,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:13,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:14,099 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 17:26:14,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:14,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908082277] [2023-08-25 17:26:14,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908082277] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:14,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:14,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:26:14,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756552265] [2023-08-25 17:26:14,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:14,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:26:14,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:14,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:26:14,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:26:14,102 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-25 17:26:14,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 88 transitions, 642 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:14,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:14,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-25 17:26:14,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:14,916 INFO L124 PetriNetUnfolderBase]: 216/486 cut-off events. [2023-08-25 17:26:14,916 INFO L125 PetriNetUnfolderBase]: For 826/826 co-relation queries the response was YES. [2023-08-25 17:26:14,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2095 conditions, 486 events. 216/486 cut-off events. For 826/826 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2421 event pairs, 8 based on Foata normal form. 0/454 useless extension candidates. Maximal degree in co-relation 2068. Up to 100 conditions per place. [2023-08-25 17:26:14,919 INFO L140 encePairwiseOnDemand]: 125/137 looper letters, 85 selfloop transitions, 60 changer transitions 42/187 dead transitions. [2023-08-25 17:26:14,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 187 transitions, 1592 flow [2023-08-25 17:26:14,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 17:26:14,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 17:26:14,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 574 transitions. [2023-08-25 17:26:14,921 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3491484184914842 [2023-08-25 17:26:14,921 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 574 transitions. [2023-08-25 17:26:14,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 574 transitions. [2023-08-25 17:26:14,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:14,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 574 transitions. [2023-08-25 17:26:14,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 47.833333333333336) internal successors, (574), 12 states have internal predecessors, (574), 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 17:26:14,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 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 17:26:14,924 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 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 17:26:14,924 INFO L175 Difference]: Start difference. First operand has 57 places, 88 transitions, 642 flow. Second operand 12 states and 574 transitions. [2023-08-25 17:26:14,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 187 transitions, 1592 flow [2023-08-25 17:26:14,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 187 transitions, 1591 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:26:14,932 INFO L231 Difference]: Finished difference. Result has 73 places, 94 transitions, 899 flow [2023-08-25 17:26:14,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=899, PETRI_PLACES=73, PETRI_TRANSITIONS=94} [2023-08-25 17:26:14,933 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 49 predicate places. [2023-08-25 17:26:14,933 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 94 transitions, 899 flow [2023-08-25 17:26:14,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:14,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:14,933 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:14,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 17:26:14,933 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:26:14,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:14,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1613412695, now seen corresponding path program 1 times [2023-08-25 17:26:14,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:14,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237956740] [2023-08-25 17:26:14,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:14,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:15,240 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 17:26:15,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:15,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237956740] [2023-08-25 17:26:15,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237956740] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:15,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:15,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:26:15,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197484948] [2023-08-25 17:26:15,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:15,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:26:15,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:15,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:26:15,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:26:15,243 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-25 17:26:15,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 94 transitions, 899 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:15,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:15,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-25 17:26:15,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:15,513 INFO L124 PetriNetUnfolderBase]: 204/473 cut-off events. [2023-08-25 17:26:15,513 INFO L125 PetriNetUnfolderBase]: For 1706/1706 co-relation queries the response was YES. [2023-08-25 17:26:15,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2478 conditions, 473 events. 204/473 cut-off events. For 1706/1706 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2425 event pairs, 14 based on Foata normal form. 0/452 useless extension candidates. Maximal degree in co-relation 2444. Up to 364 conditions per place. [2023-08-25 17:26:15,516 INFO L140 encePairwiseOnDemand]: 123/137 looper letters, 70 selfloop transitions, 46 changer transitions 25/141 dead transitions. [2023-08-25 17:26:15,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 141 transitions, 1614 flow [2023-08-25 17:26:15,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 17:26:15,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 17:26:15,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 478 transitions. [2023-08-25 17:26:15,518 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34890510948905107 [2023-08-25 17:26:15,518 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 478 transitions. [2023-08-25 17:26:15,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 478 transitions. [2023-08-25 17:26:15,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:15,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 478 transitions. [2023-08-25 17:26:15,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 47.8) internal successors, (478), 10 states have internal predecessors, (478), 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 17:26:15,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 17:26:15,521 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 17:26:15,521 INFO L175 Difference]: Start difference. First operand has 73 places, 94 transitions, 899 flow. Second operand 10 states and 478 transitions. [2023-08-25 17:26:15,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 141 transitions, 1614 flow [2023-08-25 17:26:15,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 141 transitions, 1530 flow, removed 10 selfloop flow, removed 6 redundant places. [2023-08-25 17:26:15,530 INFO L231 Difference]: Finished difference. Result has 79 places, 102 transitions, 1144 flow [2023-08-25 17:26:15,530 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=865, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1144, PETRI_PLACES=79, PETRI_TRANSITIONS=102} [2023-08-25 17:26:15,531 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 55 predicate places. [2023-08-25 17:26:15,531 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 102 transitions, 1144 flow [2023-08-25 17:26:15,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:15,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:15,532 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:15,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 17:26:15,532 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:26:15,532 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:15,532 INFO L85 PathProgramCache]: Analyzing trace with hash 313398775, now seen corresponding path program 2 times [2023-08-25 17:26:15,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:15,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001412840] [2023-08-25 17:26:15,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:15,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:16,078 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 17:26:16,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:16,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001412840] [2023-08-25 17:26:16,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001412840] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:16,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:16,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:26:16,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035305097] [2023-08-25 17:26:16,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:16,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:26:16,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:16,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:26:16,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:26:16,081 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-25 17:26:16,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 102 transitions, 1144 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:16,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:16,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-25 17:26:16,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:16,383 INFO L124 PetriNetUnfolderBase]: 198/470 cut-off events. [2023-08-25 17:26:16,383 INFO L125 PetriNetUnfolderBase]: For 2003/2003 co-relation queries the response was YES. [2023-08-25 17:26:16,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2668 conditions, 470 events. 198/470 cut-off events. For 2003/2003 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2405 event pairs, 28 based on Foata normal form. 0/449 useless extension candidates. Maximal degree in co-relation 2630. Up to 304 conditions per place. [2023-08-25 17:26:16,387 INFO L140 encePairwiseOnDemand]: 121/137 looper letters, 61 selfloop transitions, 57 changer transitions 29/147 dead transitions. [2023-08-25 17:26:16,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 147 transitions, 1802 flow [2023-08-25 17:26:16,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 17:26:16,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 17:26:16,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 523 transitions. [2023-08-25 17:26:16,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3470471134704711 [2023-08-25 17:26:16,389 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 523 transitions. [2023-08-25 17:26:16,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 523 transitions. [2023-08-25 17:26:16,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:16,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 523 transitions. [2023-08-25 17:26:16,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 47.54545454545455) internal successors, (523), 11 states have internal predecessors, (523), 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 17:26:16,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 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 17:26:16,392 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 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 17:26:16,392 INFO L175 Difference]: Start difference. First operand has 79 places, 102 transitions, 1144 flow. Second operand 11 states and 523 transitions. [2023-08-25 17:26:16,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 147 transitions, 1802 flow [2023-08-25 17:26:16,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 147 transitions, 1780 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-08-25 17:26:16,403 INFO L231 Difference]: Finished difference. Result has 87 places, 102 transitions, 1266 flow [2023-08-25 17:26:16,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1132, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1266, PETRI_PLACES=87, PETRI_TRANSITIONS=102} [2023-08-25 17:26:16,404 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 63 predicate places. [2023-08-25 17:26:16,404 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 102 transitions, 1266 flow [2023-08-25 17:26:16,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:16,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:16,404 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:16,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 17:26:16,405 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:26:16,405 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:16,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1693801217, now seen corresponding path program 3 times [2023-08-25 17:26:16,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:16,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787025649] [2023-08-25 17:26:16,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:16,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:16,678 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 17:26:16,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:16,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787025649] [2023-08-25 17:26:16,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787025649] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:16,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:16,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:26:16,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861971942] [2023-08-25 17:26:16,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:16,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:26:16,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:16,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:26:16,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:26:16,680 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-25 17:26:16,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 102 transitions, 1266 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:16,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:16,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-25 17:26:16,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:17,125 INFO L124 PetriNetUnfolderBase]: 219/512 cut-off events. [2023-08-25 17:26:17,126 INFO L125 PetriNetUnfolderBase]: For 2523/2523 co-relation queries the response was YES. [2023-08-25 17:26:17,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3131 conditions, 512 events. 219/512 cut-off events. For 2523/2523 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2719 event pairs, 18 based on Foata normal form. 0/491 useless extension candidates. Maximal degree in co-relation 3091. Up to 197 conditions per place. [2023-08-25 17:26:17,129 INFO L140 encePairwiseOnDemand]: 125/137 looper letters, 115 selfloop transitions, 12 changer transitions 95/222 dead transitions. [2023-08-25 17:26:17,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 222 transitions, 2816 flow [2023-08-25 17:26:17,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-25 17:26:17,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-25 17:26:17,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 737 transitions. [2023-08-25 17:26:17,132 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3362226277372263 [2023-08-25 17:26:17,132 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 737 transitions. [2023-08-25 17:26:17,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 737 transitions. [2023-08-25 17:26:17,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:17,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 737 transitions. [2023-08-25 17:26:17,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 46.0625) internal successors, (737), 16 states have internal predecessors, (737), 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 17:26:17,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 137.0) internal successors, (2329), 17 states have internal predecessors, (2329), 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 17:26:17,136 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 137.0) internal successors, (2329), 17 states have internal predecessors, (2329), 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 17:26:17,136 INFO L175 Difference]: Start difference. First operand has 87 places, 102 transitions, 1266 flow. Second operand 16 states and 737 transitions. [2023-08-25 17:26:17,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 222 transitions, 2816 flow [2023-08-25 17:26:17,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 222 transitions, 2686 flow, removed 11 selfloop flow, removed 8 redundant places. [2023-08-25 17:26:17,181 INFO L231 Difference]: Finished difference. Result has 100 places, 90 transitions, 1057 flow [2023-08-25 17:26:17,181 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1196, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1057, PETRI_PLACES=100, PETRI_TRANSITIONS=90} [2023-08-25 17:26:17,181 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 76 predicate places. [2023-08-25 17:26:17,182 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 90 transitions, 1057 flow [2023-08-25 17:26:17,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:17,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:17,182 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:17,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 17:26:17,182 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:26:17,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:17,183 INFO L85 PathProgramCache]: Analyzing trace with hash 356297815, now seen corresponding path program 4 times [2023-08-25 17:26:17,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:17,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83879035] [2023-08-25 17:26:17,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:17,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:17,713 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 17:26:17,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:17,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83879035] [2023-08-25 17:26:17,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83879035] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:17,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:17,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:26:17,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768199152] [2023-08-25 17:26:17,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:17,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:26:17,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:17,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:26:17,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:26:17,715 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-25 17:26:17,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 90 transitions, 1057 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:17,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:17,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-25 17:26:17,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:18,369 INFO L124 PetriNetUnfolderBase]: 158/379 cut-off events. [2023-08-25 17:26:18,370 INFO L125 PetriNetUnfolderBase]: For 2299/2299 co-relation queries the response was YES. [2023-08-25 17:26:18,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2435 conditions, 379 events. 158/379 cut-off events. For 2299/2299 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1829 event pairs, 24 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 2388. Up to 266 conditions per place. [2023-08-25 17:26:18,372 INFO L140 encePairwiseOnDemand]: 121/137 looper letters, 59 selfloop transitions, 50 changer transitions 16/125 dead transitions. [2023-08-25 17:26:18,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 125 transitions, 1658 flow [2023-08-25 17:26:18,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 17:26:18,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 17:26:18,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 562 transitions. [2023-08-25 17:26:18,374 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3418491484184915 [2023-08-25 17:26:18,374 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 562 transitions. [2023-08-25 17:26:18,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 562 transitions. [2023-08-25 17:26:18,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:18,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 562 transitions. [2023-08-25 17:26:18,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 46.833333333333336) internal successors, (562), 12 states have internal predecessors, (562), 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 17:26:18,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 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 17:26:18,378 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 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 17:26:18,378 INFO L175 Difference]: Start difference. First operand has 100 places, 90 transitions, 1057 flow. Second operand 12 states and 562 transitions. [2023-08-25 17:26:18,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 125 transitions, 1658 flow [2023-08-25 17:26:18,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 125 transitions, 1498 flow, removed 65 selfloop flow, removed 13 redundant places. [2023-08-25 17:26:18,392 INFO L231 Difference]: Finished difference. Result has 94 places, 94 transitions, 1120 flow [2023-08-25 17:26:18,393 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=942, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1120, PETRI_PLACES=94, PETRI_TRANSITIONS=94} [2023-08-25 17:26:18,394 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 70 predicate places. [2023-08-25 17:26:18,394 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 94 transitions, 1120 flow [2023-08-25 17:26:18,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:18,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:18,395 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:18,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 17:26:18,395 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:26:18,395 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:18,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1341160227, now seen corresponding path program 3 times [2023-08-25 17:26:18,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:18,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527226580] [2023-08-25 17:26:18,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:18,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:18,753 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 17:26:18,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:18,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527226580] [2023-08-25 17:26:18,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527226580] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:18,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:18,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:26:18,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340862421] [2023-08-25 17:26:18,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:18,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:26:18,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:18,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:26:18,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:26:18,755 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-25 17:26:18,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 94 transitions, 1120 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:18,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:18,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-25 17:26:18,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:19,484 INFO L124 PetriNetUnfolderBase]: 194/455 cut-off events. [2023-08-25 17:26:19,485 INFO L125 PetriNetUnfolderBase]: For 2536/2536 co-relation queries the response was YES. [2023-08-25 17:26:19,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2874 conditions, 455 events. 194/455 cut-off events. For 2536/2536 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2312 event pairs, 14 based on Foata normal form. 11/442 useless extension candidates. Maximal degree in co-relation 2832. Up to 141 conditions per place. [2023-08-25 17:26:19,488 INFO L140 encePairwiseOnDemand]: 125/137 looper letters, 145 selfloop transitions, 37 changer transitions 32/214 dead transitions. [2023-08-25 17:26:19,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 214 transitions, 2713 flow [2023-08-25 17:26:19,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-25 17:26:19,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-25 17:26:19,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 697 transitions. [2023-08-25 17:26:19,490 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3391727493917275 [2023-08-25 17:26:19,490 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 697 transitions. [2023-08-25 17:26:19,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 697 transitions. [2023-08-25 17:26:19,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:19,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 697 transitions. [2023-08-25 17:26:19,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 46.46666666666667) internal successors, (697), 15 states have internal predecessors, (697), 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 17:26:19,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 137.0) internal successors, (2192), 16 states have internal predecessors, (2192), 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 17:26:19,494 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 137.0) internal successors, (2192), 16 states have internal predecessors, (2192), 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 17:26:19,494 INFO L175 Difference]: Start difference. First operand has 94 places, 94 transitions, 1120 flow. Second operand 15 states and 697 transitions. [2023-08-25 17:26:19,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 214 transitions, 2713 flow [2023-08-25 17:26:19,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 214 transitions, 2443 flow, removed 37 selfloop flow, removed 9 redundant places. [2023-08-25 17:26:19,506 INFO L231 Difference]: Finished difference. Result has 107 places, 115 transitions, 1466 flow [2023-08-25 17:26:19,506 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1006, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1466, PETRI_PLACES=107, PETRI_TRANSITIONS=115} [2023-08-25 17:26:19,507 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 83 predicate places. [2023-08-25 17:26:19,507 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 115 transitions, 1466 flow [2023-08-25 17:26:19,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:19,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:19,507 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:19,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 17:26:19,508 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:26:19,508 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:19,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1611902375, now seen corresponding path program 5 times [2023-08-25 17:26:19,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:19,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179170398] [2023-08-25 17:26:19,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:19,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:19,752 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 17:26:19,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:19,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179170398] [2023-08-25 17:26:19,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179170398] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:19,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:19,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:26:19,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354496912] [2023-08-25 17:26:19,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:19,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:26:19,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:19,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:26:19,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:26:19,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-25 17:26:19,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 115 transitions, 1466 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:19,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:19,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-25 17:26:19,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:20,087 INFO L124 PetriNetUnfolderBase]: 204/474 cut-off events. [2023-08-25 17:26:20,087 INFO L125 PetriNetUnfolderBase]: For 3077/3077 co-relation queries the response was YES. [2023-08-25 17:26:20,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3050 conditions, 474 events. 204/474 cut-off events. For 3077/3077 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2423 event pairs, 26 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 3002. Up to 372 conditions per place. [2023-08-25 17:26:20,090 INFO L140 encePairwiseOnDemand]: 123/137 looper letters, 78 selfloop transitions, 48 changer transitions 35/161 dead transitions. [2023-08-25 17:26:20,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 161 transitions, 2295 flow [2023-08-25 17:26:20,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 17:26:20,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 17:26:20,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 518 transitions. [2023-08-25 17:26:20,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34372926343729265 [2023-08-25 17:26:20,092 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 518 transitions. [2023-08-25 17:26:20,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 518 transitions. [2023-08-25 17:26:20,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:20,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 518 transitions. [2023-08-25 17:26:20,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 47.09090909090909) internal successors, (518), 11 states have internal predecessors, (518), 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 17:26:20,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 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 17:26:20,095 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 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 17:26:20,095 INFO L175 Difference]: Start difference. First operand has 107 places, 115 transitions, 1466 flow. Second operand 11 states and 518 transitions. [2023-08-25 17:26:20,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 161 transitions, 2295 flow [2023-08-25 17:26:20,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 161 transitions, 2225 flow, removed 28 selfloop flow, removed 7 redundant places. [2023-08-25 17:26:20,110 INFO L231 Difference]: Finished difference. Result has 109 places, 115 transitions, 1539 flow [2023-08-25 17:26:20,110 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1417, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1539, PETRI_PLACES=109, PETRI_TRANSITIONS=115} [2023-08-25 17:26:20,110 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 85 predicate places. [2023-08-25 17:26:20,111 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 115 transitions, 1539 flow [2023-08-25 17:26:20,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:20,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:20,111 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:20,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 17:26:20,111 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:26:20,111 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:20,111 INFO L85 PathProgramCache]: Analyzing trace with hash 355920339, now seen corresponding path program 4 times [2023-08-25 17:26:20,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:20,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985800037] [2023-08-25 17:26:20,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:20,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:20,450 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 17:26:20,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:20,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985800037] [2023-08-25 17:26:20,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985800037] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:20,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:20,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:26:20,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403120761] [2023-08-25 17:26:20,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:20,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:26:20,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:20,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:26:20,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:26:20,452 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-25 17:26:20,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 115 transitions, 1539 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:20,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:20,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-25 17:26:20,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:20,971 INFO L124 PetriNetUnfolderBase]: 203/476 cut-off events. [2023-08-25 17:26:20,971 INFO L125 PetriNetUnfolderBase]: For 3128/3128 co-relation queries the response was YES. [2023-08-25 17:26:20,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3220 conditions, 476 events. 203/476 cut-off events. For 3128/3128 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2448 event pairs, 11 based on Foata normal form. 11/462 useless extension candidates. Maximal degree in co-relation 3171. Up to 175 conditions per place. [2023-08-25 17:26:20,977 INFO L140 encePairwiseOnDemand]: 125/137 looper letters, 103 selfloop transitions, 66 changer transitions 22/191 dead transitions. [2023-08-25 17:26:20,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 191 transitions, 2690 flow [2023-08-25 17:26:20,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 17:26:20,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 17:26:20,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 565 transitions. [2023-08-25 17:26:20,980 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34367396593673966 [2023-08-25 17:26:20,980 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 565 transitions. [2023-08-25 17:26:20,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 565 transitions. [2023-08-25 17:26:20,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:20,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 565 transitions. [2023-08-25 17:26:20,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 47.083333333333336) internal successors, (565), 12 states have internal predecessors, (565), 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 17:26:20,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 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 17:26:20,984 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 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 17:26:20,984 INFO L175 Difference]: Start difference. First operand has 109 places, 115 transitions, 1539 flow. Second operand 12 states and 565 transitions. [2023-08-25 17:26:20,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 191 transitions, 2690 flow [2023-08-25 17:26:20,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 191 transitions, 2482 flow, removed 22 selfloop flow, removed 10 redundant places. [2023-08-25 17:26:20,999 INFO L231 Difference]: Finished difference. Result has 113 places, 121 transitions, 1703 flow [2023-08-25 17:26:21,000 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1429, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1703, PETRI_PLACES=113, PETRI_TRANSITIONS=121} [2023-08-25 17:26:21,001 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 89 predicate places. [2023-08-25 17:26:21,001 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 121 transitions, 1703 flow [2023-08-25 17:26:21,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:21,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:21,001 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:21,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 17:26:21,002 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:26:21,002 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:21,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1707927225, now seen corresponding path program 6 times [2023-08-25 17:26:21,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:21,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382186127] [2023-08-25 17:26:21,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:21,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:21,340 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 17:26:21,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:21,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382186127] [2023-08-25 17:26:21,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382186127] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:21,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:21,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:26:21,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667432063] [2023-08-25 17:26:21,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:21,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:26:21,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:21,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:26:21,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:26:21,343 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-25 17:26:21,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 121 transitions, 1703 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:21,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:21,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-25 17:26:21,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:21,525 INFO L124 PetriNetUnfolderBase]: 203/482 cut-off events. [2023-08-25 17:26:21,525 INFO L125 PetriNetUnfolderBase]: For 4137/4137 co-relation queries the response was YES. [2023-08-25 17:26:21,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3353 conditions, 482 events. 203/482 cut-off events. For 4137/4137 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2489 event pairs, 33 based on Foata normal form. 0/457 useless extension candidates. Maximal degree in co-relation 3304. Up to 345 conditions per place. [2023-08-25 17:26:21,529 INFO L140 encePairwiseOnDemand]: 121/137 looper letters, 72 selfloop transitions, 66 changer transitions 14/152 dead transitions. [2023-08-25 17:26:21,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 152 transitions, 2386 flow [2023-08-25 17:26:21,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 17:26:21,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 17:26:21,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 465 transitions. [2023-08-25 17:26:21,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33941605839416056 [2023-08-25 17:26:21,532 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 465 transitions. [2023-08-25 17:26:21,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 465 transitions. [2023-08-25 17:26:21,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:21,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 465 transitions. [2023-08-25 17:26:21,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 46.5) internal successors, (465), 10 states have internal predecessors, (465), 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 17:26:21,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 17:26:21,536 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 17:26:21,536 INFO L175 Difference]: Start difference. First operand has 113 places, 121 transitions, 1703 flow. Second operand 10 states and 465 transitions. [2023-08-25 17:26:21,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 152 transitions, 2386 flow [2023-08-25 17:26:21,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 152 transitions, 2238 flow, removed 11 selfloop flow, removed 8 redundant places. [2023-08-25 17:26:21,552 INFO L231 Difference]: Finished difference. Result has 118 places, 128 transitions, 1884 flow [2023-08-25 17:26:21,552 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1585, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1884, PETRI_PLACES=118, PETRI_TRANSITIONS=128} [2023-08-25 17:26:21,552 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 94 predicate places. [2023-08-25 17:26:21,553 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 128 transitions, 1884 flow [2023-08-25 17:26:21,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:21,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:21,553 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:21,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 17:26:21,553 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:26:21,553 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:21,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1867206827, now seen corresponding path program 7 times [2023-08-25 17:26:21,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:21,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012030192] [2023-08-25 17:26:21,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:21,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:21,937 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 17:26:21,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:21,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012030192] [2023-08-25 17:26:21,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012030192] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:21,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:21,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:26:21,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500953234] [2023-08-25 17:26:21,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:21,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:26:21,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:21,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:26:21,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:26:21,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-25 17:26:21,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 128 transitions, 1884 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:21,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:21,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-25 17:26:21,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:22,561 INFO L124 PetriNetUnfolderBase]: 224/524 cut-off events. [2023-08-25 17:26:22,561 INFO L125 PetriNetUnfolderBase]: For 4237/4237 co-relation queries the response was YES. [2023-08-25 17:26:22,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3692 conditions, 524 events. 224/524 cut-off events. For 4237/4237 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2803 event pairs, 25 based on Foata normal form. 0/499 useless extension candidates. Maximal degree in co-relation 3636. Up to 363 conditions per place. [2023-08-25 17:26:22,566 INFO L140 encePairwiseOnDemand]: 121/137 looper letters, 82 selfloop transitions, 58 changer transitions 52/192 dead transitions. [2023-08-25 17:26:22,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 192 transitions, 2970 flow [2023-08-25 17:26:22,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 17:26:22,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 17:26:22,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 646 transitions. [2023-08-25 17:26:22,568 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3368091762252346 [2023-08-25 17:26:22,568 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 646 transitions. [2023-08-25 17:26:22,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 646 transitions. [2023-08-25 17:26:22,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:22,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 646 transitions. [2023-08-25 17:26:22,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 46.142857142857146) internal successors, (646), 14 states have internal predecessors, (646), 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 17:26:22,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 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 17:26:22,571 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 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 17:26:22,571 INFO L175 Difference]: Start difference. First operand has 118 places, 128 transitions, 1884 flow. Second operand 14 states and 646 transitions. [2023-08-25 17:26:22,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 192 transitions, 2970 flow [2023-08-25 17:26:22,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 192 transitions, 2864 flow, removed 13 selfloop flow, removed 4 redundant places. [2023-08-25 17:26:22,590 INFO L231 Difference]: Finished difference. Result has 133 places, 128 transitions, 1979 flow [2023-08-25 17:26:22,591 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1796, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1979, PETRI_PLACES=133, PETRI_TRANSITIONS=128} [2023-08-25 17:26:22,591 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 109 predicate places. [2023-08-25 17:26:22,591 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 128 transitions, 1979 flow [2023-08-25 17:26:22,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:22,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:22,592 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:22,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 17:26:22,592 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:26:22,592 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:22,592 INFO L85 PathProgramCache]: Analyzing trace with hash -2032720867, now seen corresponding path program 5 times [2023-08-25 17:26:22,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:22,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645865350] [2023-08-25 17:26:22,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:22,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:22,937 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 17:26:22,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:22,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645865350] [2023-08-25 17:26:22,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645865350] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:22,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:22,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:26:22,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380625418] [2023-08-25 17:26:22,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:22,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:26:22,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:22,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:26:22,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:26:22,939 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-25 17:26:22,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 128 transitions, 1979 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:22,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:22,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-25 17:26:22,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:23,555 INFO L124 PetriNetUnfolderBase]: 225/530 cut-off events. [2023-08-25 17:26:23,555 INFO L125 PetriNetUnfolderBase]: For 5388/5388 co-relation queries the response was YES. [2023-08-25 17:26:23,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4080 conditions, 530 events. 225/530 cut-off events. For 5388/5388 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2863 event pairs, 6 based on Foata normal form. 11/514 useless extension candidates. Maximal degree in co-relation 4018. Up to 247 conditions per place. [2023-08-25 17:26:23,559 INFO L140 encePairwiseOnDemand]: 125/137 looper letters, 128 selfloop transitions, 63 changer transitions 29/220 dead transitions. [2023-08-25 17:26:23,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 220 transitions, 3545 flow [2023-08-25 17:26:23,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-25 17:26:23,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-25 17:26:23,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 609 transitions. [2023-08-25 17:26:23,570 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3419427288040427 [2023-08-25 17:26:23,570 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 609 transitions. [2023-08-25 17:26:23,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 609 transitions. [2023-08-25 17:26:23,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:23,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 609 transitions. [2023-08-25 17:26:23,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 46.84615384615385) internal successors, (609), 13 states have internal predecessors, (609), 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 17:26:23,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 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 17:26:23,573 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 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 17:26:23,573 INFO L175 Difference]: Start difference. First operand has 133 places, 128 transitions, 1979 flow. Second operand 13 states and 609 transitions. [2023-08-25 17:26:23,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 220 transitions, 3545 flow [2023-08-25 17:26:23,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 220 transitions, 3204 flow, removed 79 selfloop flow, removed 13 redundant places. [2023-08-25 17:26:23,597 INFO L231 Difference]: Finished difference. Result has 133 places, 140 transitions, 2263 flow [2023-08-25 17:26:23,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1826, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2263, PETRI_PLACES=133, PETRI_TRANSITIONS=140} [2023-08-25 17:26:23,598 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 109 predicate places. [2023-08-25 17:26:23,598 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 140 transitions, 2263 flow [2023-08-25 17:26:23,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:23,598 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:23,599 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:23,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 17:26:23,599 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:26:23,599 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:23,599 INFO L85 PathProgramCache]: Analyzing trace with hash 421187283, now seen corresponding path program 6 times [2023-08-25 17:26:23,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:23,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884791501] [2023-08-25 17:26:23,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:23,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:23,861 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 17:26:23,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:23,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884791501] [2023-08-25 17:26:23,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884791501] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:23,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:23,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:26:23,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387096391] [2023-08-25 17:26:23,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:23,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:26:23,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:23,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:26:23,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:26:23,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-25 17:26:23,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 140 transitions, 2263 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:23,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:23,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-25 17:26:23,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:24,342 INFO L124 PetriNetUnfolderBase]: 206/491 cut-off events. [2023-08-25 17:26:24,342 INFO L125 PetriNetUnfolderBase]: For 5449/5449 co-relation queries the response was YES. [2023-08-25 17:26:24,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3715 conditions, 491 events. 206/491 cut-off events. For 5449/5449 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2587 event pairs, 12 based on Foata normal form. 11/476 useless extension candidates. Maximal degree in co-relation 3661. Up to 209 conditions per place. [2023-08-25 17:26:24,347 INFO L140 encePairwiseOnDemand]: 125/137 looper letters, 129 selfloop transitions, 52 changer transitions 36/217 dead transitions. [2023-08-25 17:26:24,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 217 transitions, 3393 flow [2023-08-25 17:26:24,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 17:26:24,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 17:26:24,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 645 transitions. [2023-08-25 17:26:24,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3362877997914494 [2023-08-25 17:26:24,348 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 645 transitions. [2023-08-25 17:26:24,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 645 transitions. [2023-08-25 17:26:24,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:24,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 645 transitions. [2023-08-25 17:26:24,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 46.07142857142857) internal successors, (645), 14 states have internal predecessors, (645), 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 17:26:24,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 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 17:26:24,351 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 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 17:26:24,351 INFO L175 Difference]: Start difference. First operand has 133 places, 140 transitions, 2263 flow. Second operand 14 states and 645 transitions. [2023-08-25 17:26:24,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 217 transitions, 3393 flow [2023-08-25 17:26:24,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 217 transitions, 3227 flow, removed 22 selfloop flow, removed 10 redundant places. [2023-08-25 17:26:24,371 INFO L231 Difference]: Finished difference. Result has 135 places, 130 transitions, 2150 flow [2023-08-25 17:26:24,371 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=2085, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2150, PETRI_PLACES=135, PETRI_TRANSITIONS=130} [2023-08-25 17:26:24,371 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 111 predicate places. [2023-08-25 17:26:24,371 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 130 transitions, 2150 flow [2023-08-25 17:26:24,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:24,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:24,372 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:24,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 17:26:24,372 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:26:24,372 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:24,372 INFO L85 PathProgramCache]: Analyzing trace with hash -371102807, now seen corresponding path program 8 times [2023-08-25 17:26:24,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:24,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557651308] [2023-08-25 17:26:24,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:24,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:24,677 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 17:26:24,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:24,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557651308] [2023-08-25 17:26:24,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557651308] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:24,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:24,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:26:24,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572737760] [2023-08-25 17:26:24,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:24,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:26:24,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:24,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:26:24,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:26:24,679 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-25 17:26:24,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 130 transitions, 2150 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:24,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:24,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-25 17:26:24,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:24,887 INFO L124 PetriNetUnfolderBase]: 180/454 cut-off events. [2023-08-25 17:26:24,887 INFO L125 PetriNetUnfolderBase]: For 4565/4565 co-relation queries the response was YES. [2023-08-25 17:26:24,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3391 conditions, 454 events. 180/454 cut-off events. For 4565/4565 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2449 event pairs, 23 based on Foata normal form. 10/464 useless extension candidates. Maximal degree in co-relation 3338. Up to 327 conditions per place. [2023-08-25 17:26:24,890 INFO L140 encePairwiseOnDemand]: 124/137 looper letters, 73 selfloop transitions, 53 changer transitions 58/184 dead transitions. [2023-08-25 17:26:24,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 184 transitions, 3136 flow [2023-08-25 17:26:24,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 17:26:24,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 17:26:24,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 464 transitions. [2023-08-25 17:26:24,891 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3386861313868613 [2023-08-25 17:26:24,891 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 464 transitions. [2023-08-25 17:26:24,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 464 transitions. [2023-08-25 17:26:24,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:24,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 464 transitions. [2023-08-25 17:26:24,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 46.4) internal successors, (464), 10 states have internal predecessors, (464), 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 17:26:24,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 17:26:24,893 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 17:26:24,893 INFO L175 Difference]: Start difference. First operand has 135 places, 130 transitions, 2150 flow. Second operand 10 states and 464 transitions. [2023-08-25 17:26:24,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 184 transitions, 3136 flow [2023-08-25 17:26:24,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 184 transitions, 2490 flow, removed 44 selfloop flow, removed 19 redundant places. [2023-08-25 17:26:24,909 INFO L231 Difference]: Finished difference. Result has 124 places, 124 transitions, 1740 flow [2023-08-25 17:26:24,909 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1661, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1740, PETRI_PLACES=124, PETRI_TRANSITIONS=124} [2023-08-25 17:26:24,910 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 100 predicate places. [2023-08-25 17:26:24,910 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 124 transitions, 1740 flow [2023-08-25 17:26:24,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:24,910 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:24,910 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:24,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 17:26:24,910 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:26:24,910 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:24,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1762740535, now seen corresponding path program 9 times [2023-08-25 17:26:24,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:24,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298552084] [2023-08-25 17:26:24,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:24,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:25,306 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 17:26:25,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:25,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298552084] [2023-08-25 17:26:25,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298552084] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:25,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:25,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:26:25,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643984561] [2023-08-25 17:26:25,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:25,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:26:25,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:25,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:26:25,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:26:25,308 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-25 17:26:25,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 124 transitions, 1740 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:25,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:25,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-25 17:26:25,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:25,795 INFO L124 PetriNetUnfolderBase]: 178/458 cut-off events. [2023-08-25 17:26:25,795 INFO L125 PetriNetUnfolderBase]: For 3119/3119 co-relation queries the response was YES. [2023-08-25 17:26:25,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3002 conditions, 458 events. 178/458 cut-off events. For 3119/3119 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2538 event pairs, 20 based on Foata normal form. 10/468 useless extension candidates. Maximal degree in co-relation 2954. Up to 279 conditions per place. [2023-08-25 17:26:25,798 INFO L140 encePairwiseOnDemand]: 123/137 looper letters, 88 selfloop transitions, 61 changer transitions 38/187 dead transitions. [2023-08-25 17:26:25,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 187 transitions, 2708 flow [2023-08-25 17:26:25,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-25 17:26:25,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-25 17:26:25,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 589 transitions. [2023-08-25 17:26:25,799 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33071308253790005 [2023-08-25 17:26:25,799 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 589 transitions. [2023-08-25 17:26:25,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 589 transitions. [2023-08-25 17:26:25,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:25,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 589 transitions. [2023-08-25 17:26:25,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 45.30769230769231) internal successors, (589), 13 states have internal predecessors, (589), 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 17:26:25,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 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 17:26:25,802 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 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 17:26:25,802 INFO L175 Difference]: Start difference. First operand has 124 places, 124 transitions, 1740 flow. Second operand 13 states and 589 transitions. [2023-08-25 17:26:25,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 187 transitions, 2708 flow [2023-08-25 17:26:25,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 187 transitions, 2331 flow, removed 58 selfloop flow, removed 15 redundant places. [2023-08-25 17:26:25,814 INFO L231 Difference]: Finished difference. Result has 125 places, 126 transitions, 1655 flow [2023-08-25 17:26:25,814 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1438, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1655, PETRI_PLACES=125, PETRI_TRANSITIONS=126} [2023-08-25 17:26:25,815 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 101 predicate places. [2023-08-25 17:26:25,815 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 126 transitions, 1655 flow [2023-08-25 17:26:25,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:25,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:25,815 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:25,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 17:26:25,815 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:26:25,815 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:25,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1688030159, now seen corresponding path program 10 times [2023-08-25 17:26:25,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:25,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216312248] [2023-08-25 17:26:25,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:25,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:26,055 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 17:26:26,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:26,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216312248] [2023-08-25 17:26:26,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216312248] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:26,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:26,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:26:26,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079752271] [2023-08-25 17:26:26,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:26,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:26:26,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:26,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:26:26,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:26:26,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-25 17:26:26,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 126 transitions, 1655 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:26,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:26,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-25 17:26:26,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:26,757 INFO L124 PetriNetUnfolderBase]: 147/383 cut-off events. [2023-08-25 17:26:26,757 INFO L125 PetriNetUnfolderBase]: For 2465/2465 co-relation queries the response was YES. [2023-08-25 17:26:26,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2503 conditions, 383 events. 147/383 cut-off events. For 2465/2465 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1988 event pairs, 24 based on Foata normal form. 16/399 useless extension candidates. Maximal degree in co-relation 2457. Up to 114 conditions per place. [2023-08-25 17:26:26,759 INFO L140 encePairwiseOnDemand]: 126/137 looper letters, 33 selfloop transitions, 28 changer transitions 147/208 dead transitions. [2023-08-25 17:26:26,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 208 transitions, 2795 flow [2023-08-25 17:26:26,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-25 17:26:26,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-25 17:26:26,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1000 transitions. [2023-08-25 17:26:26,762 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.317359568390987 [2023-08-25 17:26:26,762 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 1000 transitions. [2023-08-25 17:26:26,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 1000 transitions. [2023-08-25 17:26:26,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:26,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 1000 transitions. [2023-08-25 17:26:26,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 43.47826086956522) internal successors, (1000), 23 states have internal predecessors, (1000), 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 17:26:26,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 137.0) internal successors, (3288), 24 states have internal predecessors, (3288), 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 17:26:26,768 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 137.0) internal successors, (3288), 24 states have internal predecessors, (3288), 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 17:26:26,768 INFO L175 Difference]: Start difference. First operand has 125 places, 126 transitions, 1655 flow. Second operand 23 states and 1000 transitions. [2023-08-25 17:26:26,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 208 transitions, 2795 flow [2023-08-25 17:26:26,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 208 transitions, 2706 flow, removed 29 selfloop flow, removed 8 redundant places. [2023-08-25 17:26:26,781 INFO L231 Difference]: Finished difference. Result has 143 places, 57 transitions, 700 flow [2023-08-25 17:26:26,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1607, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=700, PETRI_PLACES=143, PETRI_TRANSITIONS=57} [2023-08-25 17:26:26,782 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 119 predicate places. [2023-08-25 17:26:26,782 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 57 transitions, 700 flow [2023-08-25 17:26:26,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:26,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:26,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:26,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 17:26:26,782 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:26:26,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:26,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1029171031, now seen corresponding path program 11 times [2023-08-25 17:26:26,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:26,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101137663] [2023-08-25 17:26:26,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:26,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:27,116 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 17:26:27,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:27,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101137663] [2023-08-25 17:26:27,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101137663] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:27,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:27,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:26:27,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935167981] [2023-08-25 17:26:27,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:27,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:26:27,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:27,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:26:27,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:26:27,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-25 17:26:27,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 57 transitions, 700 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:27,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:27,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-25 17:26:27,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:27,985 INFO L124 PetriNetUnfolderBase]: 37/112 cut-off events. [2023-08-25 17:26:27,985 INFO L125 PetriNetUnfolderBase]: For 936/936 co-relation queries the response was YES. [2023-08-25 17:26:27,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 805 conditions, 112 events. 37/112 cut-off events. For 936/936 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 386 event pairs, 0 based on Foata normal form. 20/132 useless extension candidates. Maximal degree in co-relation 756. Up to 40 conditions per place. [2023-08-25 17:26:27,987 INFO L140 encePairwiseOnDemand]: 127/137 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2023-08-25 17:26:27,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 85 transitions, 1160 flow [2023-08-25 17:26:27,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-25 17:26:27,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-25 17:26:27,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 850 transitions. [2023-08-25 17:26:27,997 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3102189781021898 [2023-08-25 17:26:27,997 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 850 transitions. [2023-08-25 17:26:27,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 850 transitions. [2023-08-25 17:26:27,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:27,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 850 transitions. [2023-08-25 17:26:27,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 42.5) internal successors, (850), 20 states have internal predecessors, (850), 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 17:26:28,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 137.0) internal successors, (2877), 21 states have internal predecessors, (2877), 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 17:26:28,002 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 137.0) internal successors, (2877), 21 states have internal predecessors, (2877), 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 17:26:28,002 INFO L175 Difference]: Start difference. First operand has 143 places, 57 transitions, 700 flow. Second operand 20 states and 850 transitions. [2023-08-25 17:26:28,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 85 transitions, 1160 flow [2023-08-25 17:26:28,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 85 transitions, 724 flow, removed 50 selfloop flow, removed 43 redundant places. [2023-08-25 17:26:28,006 INFO L231 Difference]: Finished difference. Result has 88 places, 0 transitions, 0 flow [2023-08-25 17:26:28,006 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=0, PETRI_PLACES=88, PETRI_TRANSITIONS=0} [2023-08-25 17:26:28,007 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 64 predicate places. [2023-08-25 17:26:28,007 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 0 transitions, 0 flow [2023-08-25 17:26:28,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 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 17:26:28,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2023-08-25 17:26:28,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-25 17:26:28,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-08-25 17:26:28,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2023-08-25 17:26:28,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 17:26:28,011 INFO L445 BasicCegarLoop]: Path program histogram: [11, 6, 1, 1] [2023-08-25 17:26:28,014 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:26:28,014 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:26:28,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:26:28 BasicIcfg [2023-08-25 17:26:28,017 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:26:28,018 INFO L158 Benchmark]: Toolchain (without parser) took 19689.72ms. Allocated memory was 356.5MB in the beginning and 876.6MB in the end (delta: 520.1MB). Free memory was 330.6MB in the beginning and 517.9MB in the end (delta: -187.4MB). Peak memory consumption was 334.8MB. Max. memory is 16.0GB. [2023-08-25 17:26:28,018 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 356.5MB. Free memory is still 334.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:26:28,018 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.58ms. Allocated memory is still 356.5MB. Free memory was 330.6MB in the beginning and 302.9MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-25 17:26:28,018 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.54ms. Allocated memory is still 356.5MB. Free memory was 302.9MB in the beginning and 300.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:26:28,018 INFO L158 Benchmark]: Boogie Preprocessor took 26.17ms. Allocated memory is still 356.5MB. Free memory was 300.8MB in the beginning and 299.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:26:28,018 INFO L158 Benchmark]: RCFGBuilder took 327.62ms. Allocated memory is still 356.5MB. Free memory was 299.4MB in the beginning and 284.0MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-25 17:26:28,018 INFO L158 Benchmark]: TraceAbstraction took 18874.18ms. Allocated memory was 356.5MB in the beginning and 876.6MB in the end (delta: 520.1MB). Free memory was 283.3MB in the beginning and 517.9MB in the end (delta: -234.6MB). Peak memory consumption was 288.6MB. Max. memory is 16.0GB. [2023-08-25 17:26:28,019 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 356.5MB. Free memory is still 334.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 410.58ms. Allocated memory is still 356.5MB. Free memory was 330.6MB in the beginning and 302.9MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 47.54ms. Allocated memory is still 356.5MB. Free memory was 302.9MB in the beginning and 300.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.17ms. Allocated memory is still 356.5MB. Free memory was 300.8MB in the beginning and 299.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 327.62ms. Allocated memory is still 356.5MB. Free memory was 299.4MB in the beginning and 284.0MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 18874.18ms. Allocated memory was 356.5MB in the beginning and 876.6MB in the end (delta: 520.1MB). Free memory was 283.3MB in the beginning and 517.9MB in the end (delta: -234.6MB). Peak memory consumption was 288.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 245]: Unsoundness Warning unspecified type, defaulting to int C: short [245] - GenericResultAtLocation [Line: 245]: Unsoundness Warning unspecified type, defaulting to int C: short [245] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 81 PlacesBefore, 24 PlacesAfterwards, 78 TransitionsBefore, 20 TransitionsAfterwards, 660 CoEnabledTransitionPairs, 7 FixpointIterations, 38 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2759 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 956, independent: 716, independent conditional: 0, independent unconditional: 716, dependent: 240, dependent conditional: 0, dependent unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 312, independent: 286, independent conditional: 0, independent unconditional: 286, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 956, independent: 430, independent conditional: 0, independent unconditional: 430, dependent: 214, dependent conditional: 0, dependent unconditional: 214, unknown: 312, unknown conditional: 0, unknown unconditional: 312] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 999]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 994]: 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, 96 locations, 4 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: 18.8s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1187 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1187 mSDsluCounter, 106 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 434 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4743 IncrementalHoareTripleChecker+Invalid, 5177 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 434 mSolverCounterUnsat, 57 mSDtfsCounter, 4743 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 307 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 304 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2263occurred in iteration=14, InterpolantAutomatonStates: 238, 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, 6.3s InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 203 ConstructedInterpolants, 0 QuantifiedInterpolants, 5653 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 17:26:28,034 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...