/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:56:18,765 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:56:18,849 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 03:56:18,855 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:56:18,856 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:56:18,886 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:56:18,886 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:56:18,887 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:56:18,887 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:56:18,890 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:56:18,891 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:56:18,891 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:56:18,891 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:56:18,892 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:56:18,892 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:56:18,893 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:56:18,893 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:56:18,893 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:56:18,893 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:56:18,894 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:56:18,894 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:56:18,894 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:56:18,895 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:56:18,895 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:56:18,895 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:56:18,895 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:56:18,896 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:56:18,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:56:18,896 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:56:18,896 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:56:18,897 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:56:18,897 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:56:18,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:56:18,898 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:56:18,898 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:56:18,898 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:56:19,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:56:19,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:56:19,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:56:19,230 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:56:19,231 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:56:19,232 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2023-08-25 03:56:20,462 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:56:20,718 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:56:20,730 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2023-08-25 03:56:20,759 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/836a44f52/81e4ff7a410a42a1ad6972a33510d3b6/FLAG9a0bdd0ac [2023-08-25 03:56:20,776 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/836a44f52/81e4ff7a410a42a1ad6972a33510d3b6 [2023-08-25 03:56:20,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:56:20,782 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:56:20,785 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:56:20,785 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:56:20,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:56:20,789 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:56:20" (1/1) ... [2023-08-25 03:56:20,790 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22a29088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:20, skipping insertion in model container [2023-08-25 03:56:20,790 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:56:20" (1/1) ... [2023-08-25 03:56:20,841 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:56:21,172 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:56:21,191 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:56:21,218 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-25 03:56:21,219 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-25 03:56:21,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:56:21,290 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:56:21,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:21 WrapperNode [2023-08-25 03:56:21,290 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:56:21,292 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:56:21,292 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:56:21,292 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:56:21,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:21" (1/1) ... [2023-08-25 03:56:21,314 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:21" (1/1) ... [2023-08-25 03:56:21,342 INFO L138 Inliner]: procedures = 162, calls = 47, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 115 [2023-08-25 03:56:21,343 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:56:21,344 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:56:21,344 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:56:21,344 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:56:21,351 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:21" (1/1) ... [2023-08-25 03:56:21,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:21" (1/1) ... [2023-08-25 03:56:21,368 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:21" (1/1) ... [2023-08-25 03:56:21,369 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:21" (1/1) ... [2023-08-25 03:56:21,375 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:21" (1/1) ... [2023-08-25 03:56:21,376 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:21" (1/1) ... [2023-08-25 03:56:21,378 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:21" (1/1) ... [2023-08-25 03:56:21,379 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:21" (1/1) ... [2023-08-25 03:56:21,392 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:56:21,392 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:56:21,393 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:56:21,393 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:56:21,393 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:21" (1/1) ... [2023-08-25 03:56:21,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:56:21,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:56:21,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 03:56:21,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 03:56:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 03:56:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:56:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 03:56:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:56:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:56:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 03:56:21,463 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 03:56:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:56:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 03:56:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:56:21,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:56:21,465 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 03:56:21,605 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:56:21,607 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:56:21,852 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:56:21,860 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:56:21,860 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 03:56:21,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:56:21 BoogieIcfgContainer [2023-08-25 03:56:21,862 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:56:21,864 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:56:21,864 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:56:21,867 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:56:21,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:56:20" (1/3) ... [2023-08-25 03:56:21,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9b5ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:56:21, skipping insertion in model container [2023-08-25 03:56:21,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:56:21" (2/3) ... [2023-08-25 03:56:21,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9b5ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:56:21, skipping insertion in model container [2023-08-25 03:56:21,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:56:21" (3/3) ... [2023-08-25 03:56:21,872 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2023-08-25 03:56:21,886 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:56:21,886 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-08-25 03:56:21,886 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:56:21,972 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 03:56:22,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 193 places, 197 transitions, 402 flow [2023-08-25 03:56:22,072 INFO L124 PetriNetUnfolderBase]: 8/196 cut-off events. [2023-08-25 03:56:22,072 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 03:56:22,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 196 events. 8/196 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 259 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 152. Up to 2 conditions per place. [2023-08-25 03:56:22,078 INFO L82 GeneralOperation]: Start removeDead. Operand has 193 places, 197 transitions, 402 flow [2023-08-25 03:56:22,083 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 185 places, 189 transitions, 381 flow [2023-08-25 03:56:22,086 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:56:22,093 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 185 places, 189 transitions, 381 flow [2023-08-25 03:56:22,096 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 185 places, 189 transitions, 381 flow [2023-08-25 03:56:22,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 185 places, 189 transitions, 381 flow [2023-08-25 03:56:22,133 INFO L124 PetriNetUnfolderBase]: 8/189 cut-off events. [2023-08-25 03:56:22,133 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:56:22,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 189 events. 8/189 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 260 event pairs, 0 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 152. Up to 2 conditions per place. [2023-08-25 03:56:22,140 INFO L119 LiptonReduction]: Number of co-enabled transitions 11310 [2023-08-25 03:56:25,539 INFO L134 LiptonReduction]: Checked pairs total: 51261 [2023-08-25 03:56:25,539 INFO L136 LiptonReduction]: Total number of compositions: 143 [2023-08-25 03:56:25,552 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:56:25,557 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;@328fd155, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:56:25,557 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-08-25 03:56:25,561 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:56:25,561 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2023-08-25 03:56:25,561 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:56:25,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:25,562 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 03:56:25,562 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:56:25,566 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:25,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1790563924, now seen corresponding path program 1 times [2023-08-25 03:56:25,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:25,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419226849] [2023-08-25 03:56:25,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:25,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:25,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:25,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:25,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419226849] [2023-08-25 03:56:25,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419226849] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:25,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:25,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:56:25,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374890394] [2023-08-25 03:56:25,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:25,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:56:25,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:25,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:56:25,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:56:25,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 340 [2023-08-25 03:56:25,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 88 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:25,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:25,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 340 [2023-08-25 03:56:25,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:26,219 INFO L124 PetriNetUnfolderBase]: 1241/3051 cut-off events. [2023-08-25 03:56:26,219 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:56:26,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5648 conditions, 3051 events. 1241/3051 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 20800 event pairs, 218 based on Foata normal form. 96/2621 useless extension candidates. Maximal degree in co-relation 5639. Up to 1481 conditions per place. [2023-08-25 03:56:26,237 INFO L140 encePairwiseOnDemand]: 318/340 looper letters, 98 selfloop transitions, 10 changer transitions 0/124 dead transitions. [2023-08-25 03:56:26,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 124 transitions, 467 flow [2023-08-25 03:56:26,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:56:26,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:56:26,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 613 transitions. [2023-08-25 03:56:26,250 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6009803921568627 [2023-08-25 03:56:26,251 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 613 transitions. [2023-08-25 03:56:26,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 613 transitions. [2023-08-25 03:56:26,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:26,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 613 transitions. [2023-08-25 03:56:26,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 204.33333333333334) internal successors, (613), 3 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:26,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:26,264 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:26,266 INFO L175 Difference]: Start difference. First operand has 86 places, 88 transitions, 179 flow. Second operand 3 states and 613 transitions. [2023-08-25 03:56:26,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 124 transitions, 467 flow [2023-08-25 03:56:26,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 124 transitions, 466 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:56:26,271 INFO L231 Difference]: Finished difference. Result has 82 places, 83 transitions, 230 flow [2023-08-25 03:56:26,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=82, PETRI_TRANSITIONS=83} [2023-08-25 03:56:26,275 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -4 predicate places. [2023-08-25 03:56:26,276 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 83 transitions, 230 flow [2023-08-25 03:56:26,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:26,276 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:26,276 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:26,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:56:26,277 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:56:26,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:26,277 INFO L85 PathProgramCache]: Analyzing trace with hash 389244579, now seen corresponding path program 1 times [2023-08-25 03:56:26,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:26,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660587420] [2023-08-25 03:56:26,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:26,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:26,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:26,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:26,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660587420] [2023-08-25 03:56:26,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660587420] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:26,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:26,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 03:56:26,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37539577] [2023-08-25 03:56:26,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:26,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:56:26,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:26,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:56:26,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:56:26,413 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 340 [2023-08-25 03:56:26,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 83 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:26,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:26,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 340 [2023-08-25 03:56:26,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:26,658 INFO L124 PetriNetUnfolderBase]: 878/2520 cut-off events. [2023-08-25 03:56:26,659 INFO L125 PetriNetUnfolderBase]: For 220/223 co-relation queries the response was YES. [2023-08-25 03:56:26,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4743 conditions, 2520 events. 878/2520 cut-off events. For 220/223 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 17996 event pairs, 723 based on Foata normal form. 1/2202 useless extension candidates. Maximal degree in co-relation 4733. Up to 1699 conditions per place. [2023-08-25 03:56:26,672 INFO L140 encePairwiseOnDemand]: 334/340 looper letters, 66 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2023-08-25 03:56:26,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 101 transitions, 404 flow [2023-08-25 03:56:26,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:56:26,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:56:26,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 595 transitions. [2023-08-25 03:56:26,674 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2023-08-25 03:56:26,675 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 595 transitions. [2023-08-25 03:56:26,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 595 transitions. [2023-08-25 03:56:26,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:26,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 595 transitions. [2023-08-25 03:56:26,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:26,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:26,679 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:26,679 INFO L175 Difference]: Start difference. First operand has 82 places, 83 transitions, 230 flow. Second operand 3 states and 595 transitions. [2023-08-25 03:56:26,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 101 transitions, 404 flow [2023-08-25 03:56:26,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 101 transitions, 384 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:56:26,685 INFO L231 Difference]: Finished difference. Result has 83 places, 83 transitions, 224 flow [2023-08-25 03:56:26,685 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=83, PETRI_TRANSITIONS=83} [2023-08-25 03:56:26,686 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -3 predicate places. [2023-08-25 03:56:26,686 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 83 transitions, 224 flow [2023-08-25 03:56:26,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:26,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:26,687 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:26,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 03:56:26,687 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:56:26,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:26,688 INFO L85 PathProgramCache]: Analyzing trace with hash 807304258, now seen corresponding path program 1 times [2023-08-25 03:56:26,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:26,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091388106] [2023-08-25 03:56:26,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:26,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:26,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:26,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:26,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091388106] [2023-08-25 03:56:26,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091388106] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:26,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:26,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:56:26,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919303177] [2023-08-25 03:56:26,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:26,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:56:26,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:26,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:56:26,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:56:26,722 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 340 [2023-08-25 03:56:26,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 83 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:26,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:26,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 340 [2023-08-25 03:56:26,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:27,108 INFO L124 PetriNetUnfolderBase]: 1236/3194 cut-off events. [2023-08-25 03:56:27,108 INFO L125 PetriNetUnfolderBase]: For 413/416 co-relation queries the response was YES. [2023-08-25 03:56:27,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6474 conditions, 3194 events. 1236/3194 cut-off events. For 413/416 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 21842 event pairs, 985 based on Foata normal form. 2/2835 useless extension candidates. Maximal degree in co-relation 6462. Up to 2383 conditions per place. [2023-08-25 03:56:27,124 INFO L140 encePairwiseOnDemand]: 333/340 looper letters, 96 selfloop transitions, 8 changer transitions 0/120 dead transitions. [2023-08-25 03:56:27,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 120 transitions, 542 flow [2023-08-25 03:56:27,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:56:27,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:56:27,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 572 transitions. [2023-08-25 03:56:27,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5607843137254902 [2023-08-25 03:56:27,126 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 572 transitions. [2023-08-25 03:56:27,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 572 transitions. [2023-08-25 03:56:27,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:27,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 572 transitions. [2023-08-25 03:56:27,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:27,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:27,130 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:27,130 INFO L175 Difference]: Start difference. First operand has 83 places, 83 transitions, 224 flow. Second operand 3 states and 572 transitions. [2023-08-25 03:56:27,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 120 transitions, 542 flow [2023-08-25 03:56:27,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 120 transitions, 538 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:56:27,134 INFO L231 Difference]: Finished difference. Result has 85 places, 90 transitions, 292 flow [2023-08-25 03:56:27,134 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=292, PETRI_PLACES=85, PETRI_TRANSITIONS=90} [2023-08-25 03:56:27,135 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -1 predicate places. [2023-08-25 03:56:27,135 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 90 transitions, 292 flow [2023-08-25 03:56:27,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:27,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:27,136 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:27,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 03:56:27,136 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:56:27,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:27,137 INFO L85 PathProgramCache]: Analyzing trace with hash -327807331, now seen corresponding path program 1 times [2023-08-25 03:56:27,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:27,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325642537] [2023-08-25 03:56:27,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:27,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:27,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:27,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:27,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325642537] [2023-08-25 03:56:27,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325642537] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:27,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:27,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 03:56:27,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853099965] [2023-08-25 03:56:27,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:27,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:56:27,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:27,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:56:27,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:56:27,220 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 340 [2023-08-25 03:56:27,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 90 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:27,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:27,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 340 [2023-08-25 03:56:27,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:27,553 INFO L124 PetriNetUnfolderBase]: 1161/3058 cut-off events. [2023-08-25 03:56:27,553 INFO L125 PetriNetUnfolderBase]: For 612/654 co-relation queries the response was YES. [2023-08-25 03:56:27,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6397 conditions, 3058 events. 1161/3058 cut-off events. For 612/654 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 22263 event pairs, 686 based on Foata normal form. 28/2819 useless extension candidates. Maximal degree in co-relation 6385. Up to 2086 conditions per place. [2023-08-25 03:56:27,570 INFO L140 encePairwiseOnDemand]: 326/340 looper letters, 92 selfloop transitions, 15 changer transitions 0/138 dead transitions. [2023-08-25 03:56:27,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 138 transitions, 625 flow [2023-08-25 03:56:27,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:56:27,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:56:27,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 559 transitions. [2023-08-25 03:56:27,572 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5480392156862746 [2023-08-25 03:56:27,572 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 559 transitions. [2023-08-25 03:56:27,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 559 transitions. [2023-08-25 03:56:27,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:27,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 559 transitions. [2023-08-25 03:56:27,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:27,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:27,576 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:27,576 INFO L175 Difference]: Start difference. First operand has 85 places, 90 transitions, 292 flow. Second operand 3 states and 559 transitions. [2023-08-25 03:56:27,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 138 transitions, 625 flow [2023-08-25 03:56:27,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 138 transitions, 605 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 03:56:27,583 INFO L231 Difference]: Finished difference. Result has 86 places, 101 transitions, 363 flow [2023-08-25 03:56:27,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=363, PETRI_PLACES=86, PETRI_TRANSITIONS=101} [2023-08-25 03:56:27,584 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 0 predicate places. [2023-08-25 03:56:27,584 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 101 transitions, 363 flow [2023-08-25 03:56:27,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:27,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:27,585 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:27,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 03:56:27,585 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:56:27,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:27,585 INFO L85 PathProgramCache]: Analyzing trace with hash -54474462, now seen corresponding path program 1 times [2023-08-25 03:56:27,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:27,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300145619] [2023-08-25 03:56:27,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:27,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:27,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:27,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:27,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300145619] [2023-08-25 03:56:27,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300145619] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:27,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:27,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 03:56:27,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002746510] [2023-08-25 03:56:27,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:27,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 03:56:27,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:27,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 03:56:27,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 03:56:27,724 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 340 [2023-08-25 03:56:27,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 101 transitions, 363 flow. Second operand has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:27,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:27,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 340 [2023-08-25 03:56:27,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:27,984 INFO L124 PetriNetUnfolderBase]: 587/1558 cut-off events. [2023-08-25 03:56:27,984 INFO L125 PetriNetUnfolderBase]: For 443/452 co-relation queries the response was YES. [2023-08-25 03:56:27,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3664 conditions, 1558 events. 587/1558 cut-off events. For 443/452 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 9711 event pairs, 211 based on Foata normal form. 20/1492 useless extension candidates. Maximal degree in co-relation 3651. Up to 695 conditions per place. [2023-08-25 03:56:27,992 INFO L140 encePairwiseOnDemand]: 333/340 looper letters, 103 selfloop transitions, 9 changer transitions 2/138 dead transitions. [2023-08-25 03:56:27,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 138 transitions, 683 flow [2023-08-25 03:56:27,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 03:56:27,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 03:56:27,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 688 transitions. [2023-08-25 03:56:27,997 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5058823529411764 [2023-08-25 03:56:27,997 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 688 transitions. [2023-08-25 03:56:27,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 688 transitions. [2023-08-25 03:56:27,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:27,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 688 transitions. [2023-08-25 03:56:28,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:28,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 340.0) internal successors, (1700), 5 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:28,003 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 340.0) internal successors, (1700), 5 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:28,003 INFO L175 Difference]: Start difference. First operand has 86 places, 101 transitions, 363 flow. Second operand 4 states and 688 transitions. [2023-08-25 03:56:28,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 138 transitions, 683 flow [2023-08-25 03:56:28,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 138 transitions, 665 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-25 03:56:28,008 INFO L231 Difference]: Finished difference. Result has 87 places, 92 transitions, 332 flow [2023-08-25 03:56:28,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=332, PETRI_PLACES=87, PETRI_TRANSITIONS=92} [2023-08-25 03:56:28,009 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 1 predicate places. [2023-08-25 03:56:28,009 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 92 transitions, 332 flow [2023-08-25 03:56:28,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:28,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:28,010 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:28,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 03:56:28,010 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:56:28,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:28,011 INFO L85 PathProgramCache]: Analyzing trace with hash 263390534, now seen corresponding path program 1 times [2023-08-25 03:56:28,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:28,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014364799] [2023-08-25 03:56:28,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:28,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:28,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:28,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:28,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014364799] [2023-08-25 03:56:28,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014364799] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:28,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:28,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:56:28,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639129472] [2023-08-25 03:56:28,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:28,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:56:28,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:28,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:56:28,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:56:28,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 340 [2023-08-25 03:56:28,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 92 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:28,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:28,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 340 [2023-08-25 03:56:28,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:28,263 INFO L124 PetriNetUnfolderBase]: 630/1711 cut-off events. [2023-08-25 03:56:28,264 INFO L125 PetriNetUnfolderBase]: For 616/616 co-relation queries the response was YES. [2023-08-25 03:56:28,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4102 conditions, 1711 events. 630/1711 cut-off events. For 616/616 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 10670 event pairs, 507 based on Foata normal form. 0/1592 useless extension candidates. Maximal degree in co-relation 4087. Up to 1327 conditions per place. [2023-08-25 03:56:28,274 INFO L140 encePairwiseOnDemand]: 335/340 looper letters, 80 selfloop transitions, 4 changer transitions 0/103 dead transitions. [2023-08-25 03:56:28,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 103 transitions, 543 flow [2023-08-25 03:56:28,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:56:28,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:56:28,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 548 transitions. [2023-08-25 03:56:28,277 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5372549019607843 [2023-08-25 03:56:28,277 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 548 transitions. [2023-08-25 03:56:28,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 548 transitions. [2023-08-25 03:56:28,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:28,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 548 transitions. [2023-08-25 03:56:28,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:28,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:28,281 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:28,281 INFO L175 Difference]: Start difference. First operand has 87 places, 92 transitions, 332 flow. Second operand 3 states and 548 transitions. [2023-08-25 03:56:28,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 103 transitions, 543 flow [2023-08-25 03:56:28,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 103 transitions, 542 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:56:28,285 INFO L231 Difference]: Finished difference. Result has 90 places, 95 transitions, 367 flow [2023-08-25 03:56:28,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=367, PETRI_PLACES=90, PETRI_TRANSITIONS=95} [2023-08-25 03:56:28,286 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 4 predicate places. [2023-08-25 03:56:28,286 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 95 transitions, 367 flow [2023-08-25 03:56:28,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:28,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:28,287 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:28,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 03:56:28,287 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:56:28,288 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:28,288 INFO L85 PathProgramCache]: Analyzing trace with hash 618306389, now seen corresponding path program 1 times [2023-08-25 03:56:28,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:28,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122047553] [2023-08-25 03:56:28,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:28,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:28,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:28,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:28,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122047553] [2023-08-25 03:56:28,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122047553] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:28,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:28,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:56:28,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696080703] [2023-08-25 03:56:28,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:28,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:56:28,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:28,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:56:28,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:56:28,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 340 [2023-08-25 03:56:28,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 95 transitions, 367 flow. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:28,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:28,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 340 [2023-08-25 03:56:28,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:28,591 INFO L124 PetriNetUnfolderBase]: 819/1941 cut-off events. [2023-08-25 03:56:28,592 INFO L125 PetriNetUnfolderBase]: For 960/983 co-relation queries the response was YES. [2023-08-25 03:56:28,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4953 conditions, 1941 events. 819/1941 cut-off events. For 960/983 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 12157 event pairs, 342 based on Foata normal form. 5/1741 useless extension candidates. Maximal degree in co-relation 4937. Up to 997 conditions per place. [2023-08-25 03:56:28,610 INFO L140 encePairwiseOnDemand]: 331/340 looper letters, 115 selfloop transitions, 6 changer transitions 0/142 dead transitions. [2023-08-25 03:56:28,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 142 transitions, 777 flow [2023-08-25 03:56:28,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:56:28,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:56:28,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 609 transitions. [2023-08-25 03:56:28,612 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5970588235294118 [2023-08-25 03:56:28,612 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 609 transitions. [2023-08-25 03:56:28,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 609 transitions. [2023-08-25 03:56:28,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:28,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 609 transitions. [2023-08-25 03:56:28,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.0) internal successors, (609), 3 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 03:56:28,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:28,616 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:28,616 INFO L175 Difference]: Start difference. First operand has 90 places, 95 transitions, 367 flow. Second operand 3 states and 609 transitions. [2023-08-25 03:56:28,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 142 transitions, 777 flow [2023-08-25 03:56:28,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 142 transitions, 763 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 03:56:28,622 INFO L231 Difference]: Finished difference. Result has 90 places, 97 transitions, 395 flow [2023-08-25 03:56:28,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=395, PETRI_PLACES=90, PETRI_TRANSITIONS=97} [2023-08-25 03:56:28,622 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 4 predicate places. [2023-08-25 03:56:28,623 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 97 transitions, 395 flow [2023-08-25 03:56:28,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:28,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:28,623 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:28,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 03:56:28,625 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:56:28,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:28,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1987629534, now seen corresponding path program 1 times [2023-08-25 03:56:28,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:28,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590427395] [2023-08-25 03:56:28,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:28,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:28,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:28,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:28,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590427395] [2023-08-25 03:56:28,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590427395] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:28,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:28,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 03:56:28,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709137348] [2023-08-25 03:56:28,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:28,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:56:28,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:28,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:56:28,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:56:28,717 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 340 [2023-08-25 03:56:28,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 97 transitions, 395 flow. Second operand has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:28,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:28,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 340 [2023-08-25 03:56:28,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:28,901 INFO L124 PetriNetUnfolderBase]: 619/1658 cut-off events. [2023-08-25 03:56:28,902 INFO L125 PetriNetUnfolderBase]: For 854/869 co-relation queries the response was YES. [2023-08-25 03:56:28,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4380 conditions, 1658 events. 619/1658 cut-off events. For 854/869 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 10663 event pairs, 248 based on Foata normal form. 5/1573 useless extension candidates. Maximal degree in co-relation 4363. Up to 839 conditions per place. [2023-08-25 03:56:28,910 INFO L140 encePairwiseOnDemand]: 336/340 looper letters, 84 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2023-08-25 03:56:28,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 118 transitions, 644 flow [2023-08-25 03:56:28,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:56:28,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:56:28,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 601 transitions. [2023-08-25 03:56:28,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5892156862745098 [2023-08-25 03:56:28,912 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 601 transitions. [2023-08-25 03:56:28,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 601 transitions. [2023-08-25 03:56:28,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:28,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 601 transitions. [2023-08-25 03:56:28,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:28,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:28,916 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:28,916 INFO L175 Difference]: Start difference. First operand has 90 places, 97 transitions, 395 flow. Second operand 3 states and 601 transitions. [2023-08-25 03:56:28,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 118 transitions, 644 flow [2023-08-25 03:56:28,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 118 transitions, 632 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:56:28,921 INFO L231 Difference]: Finished difference. Result has 91 places, 97 transitions, 393 flow [2023-08-25 03:56:28,921 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=393, PETRI_PLACES=91, PETRI_TRANSITIONS=97} [2023-08-25 03:56:28,921 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 5 predicate places. [2023-08-25 03:56:28,922 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 97 transitions, 393 flow [2023-08-25 03:56:28,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:28,922 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:28,922 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:28,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 03:56:28,922 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:56:28,923 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:28,923 INFO L85 PathProgramCache]: Analyzing trace with hash -693467459, now seen corresponding path program 1 times [2023-08-25 03:56:28,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:28,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625137059] [2023-08-25 03:56:28,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:28,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:29,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:29,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:29,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625137059] [2023-08-25 03:56:29,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625137059] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:29,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:29,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 03:56:29,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130508040] [2023-08-25 03:56:29,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:29,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:56:29,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:29,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:56:29,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:56:29,077 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 340 [2023-08-25 03:56:29,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 97 transitions, 393 flow. Second operand has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:29,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:29,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 340 [2023-08-25 03:56:29,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:29,345 INFO L124 PetriNetUnfolderBase]: 513/1439 cut-off events. [2023-08-25 03:56:29,345 INFO L125 PetriNetUnfolderBase]: For 749/759 co-relation queries the response was YES. [2023-08-25 03:56:29,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3741 conditions, 1439 events. 513/1439 cut-off events. For 749/759 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 8873 event pairs, 347 based on Foata normal form. 80/1462 useless extension candidates. Maximal degree in co-relation 3722. Up to 899 conditions per place. [2023-08-25 03:56:29,352 INFO L140 encePairwiseOnDemand]: 329/340 looper letters, 87 selfloop transitions, 9 changer transitions 1/128 dead transitions. [2023-08-25 03:56:29,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 128 transitions, 731 flow [2023-08-25 03:56:29,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 03:56:29,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 03:56:29,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1461 transitions. [2023-08-25 03:56:29,356 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5371323529411764 [2023-08-25 03:56:29,356 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1461 transitions. [2023-08-25 03:56:29,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1461 transitions. [2023-08-25 03:56:29,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:29,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1461 transitions. [2023-08-25 03:56:29,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 182.625) internal successors, (1461), 8 states have internal predecessors, (1461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:29,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 340.0) internal successors, (3060), 9 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:29,364 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 340.0) internal successors, (3060), 9 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:29,364 INFO L175 Difference]: Start difference. First operand has 91 places, 97 transitions, 393 flow. Second operand 8 states and 1461 transitions. [2023-08-25 03:56:29,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 128 transitions, 731 flow [2023-08-25 03:56:29,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 128 transitions, 727 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:56:29,368 INFO L231 Difference]: Finished difference. Result has 95 places, 93 transitions, 400 flow [2023-08-25 03:56:29,368 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=400, PETRI_PLACES=95, PETRI_TRANSITIONS=93} [2023-08-25 03:56:29,369 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 9 predicate places. [2023-08-25 03:56:29,369 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 93 transitions, 400 flow [2023-08-25 03:56:29,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:29,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:29,370 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:29,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 03:56:29,370 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:56:29,370 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:29,371 INFO L85 PathProgramCache]: Analyzing trace with hash -227609686, now seen corresponding path program 1 times [2023-08-25 03:56:29,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:29,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163464519] [2023-08-25 03:56:29,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:29,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:29,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:29,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:29,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163464519] [2023-08-25 03:56:29,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163464519] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:29,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:29,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:56:29,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155468711] [2023-08-25 03:56:29,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:29,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:56:29,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:29,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:56:29,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:56:29,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 340 [2023-08-25 03:56:29,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 93 transitions, 400 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:29,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:29,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 340 [2023-08-25 03:56:29,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:29,599 INFO L124 PetriNetUnfolderBase]: 672/1662 cut-off events. [2023-08-25 03:56:29,599 INFO L125 PetriNetUnfolderBase]: For 1055/1074 co-relation queries the response was YES. [2023-08-25 03:56:29,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4616 conditions, 1662 events. 672/1662 cut-off events. For 1055/1074 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 9810 event pairs, 471 based on Foata normal form. 6/1553 useless extension candidates. Maximal degree in co-relation 4595. Up to 1335 conditions per place. [2023-08-25 03:56:29,606 INFO L140 encePairwiseOnDemand]: 335/340 looper letters, 93 selfloop transitions, 5 changer transitions 0/118 dead transitions. [2023-08-25 03:56:29,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 118 transitions, 687 flow [2023-08-25 03:56:29,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:56:29,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:56:29,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 574 transitions. [2023-08-25 03:56:29,608 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5627450980392157 [2023-08-25 03:56:29,608 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 574 transitions. [2023-08-25 03:56:29,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 574 transitions. [2023-08-25 03:56:29,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:29,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 574 transitions. [2023-08-25 03:56:29,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 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 03:56:29,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:29,612 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:29,612 INFO L175 Difference]: Start difference. First operand has 95 places, 93 transitions, 400 flow. Second operand 3 states and 574 transitions. [2023-08-25 03:56:29,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 118 transitions, 687 flow [2023-08-25 03:56:29,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 118 transitions, 669 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-25 03:56:29,616 INFO L231 Difference]: Finished difference. Result has 92 places, 96 transitions, 420 flow [2023-08-25 03:56:29,616 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=420, PETRI_PLACES=92, PETRI_TRANSITIONS=96} [2023-08-25 03:56:29,617 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 6 predicate places. [2023-08-25 03:56:29,617 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 96 transitions, 420 flow [2023-08-25 03:56:29,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:29,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:29,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:29,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 03:56:29,618 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:56:29,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:29,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1989073027, now seen corresponding path program 1 times [2023-08-25 03:56:29,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:29,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752233841] [2023-08-25 03:56:29,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:29,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:29,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:29,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:29,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752233841] [2023-08-25 03:56:29,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752233841] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:29,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:29,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 03:56:29,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483341386] [2023-08-25 03:56:29,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:29,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 03:56:29,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:29,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 03:56:29,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 03:56:29,722 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 340 [2023-08-25 03:56:29,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 96 transitions, 420 flow. Second operand has 5 states, 5 states have (on average 151.2) internal successors, (756), 5 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:29,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:29,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 340 [2023-08-25 03:56:29,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:29,880 INFO L124 PetriNetUnfolderBase]: 254/919 cut-off events. [2023-08-25 03:56:29,881 INFO L125 PetriNetUnfolderBase]: For 575/575 co-relation queries the response was YES. [2023-08-25 03:56:29,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2602 conditions, 919 events. 254/919 cut-off events. For 575/575 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5212 event pairs, 69 based on Foata normal form. 88/1001 useless extension candidates. Maximal degree in co-relation 2581. Up to 441 conditions per place. [2023-08-25 03:56:29,884 INFO L140 encePairwiseOnDemand]: 321/340 looper letters, 60 selfloop transitions, 25 changer transitions 8/111 dead transitions. [2023-08-25 03:56:29,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 111 transitions, 669 flow [2023-08-25 03:56:29,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 03:56:29,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 03:56:29,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 672 transitions. [2023-08-25 03:56:29,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49411764705882355 [2023-08-25 03:56:29,886 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 672 transitions. [2023-08-25 03:56:29,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 672 transitions. [2023-08-25 03:56:29,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:29,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 672 transitions. [2023-08-25 03:56:29,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:29,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 340.0) internal successors, (1700), 5 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:29,891 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 340.0) internal successors, (1700), 5 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:29,891 INFO L175 Difference]: Start difference. First operand has 92 places, 96 transitions, 420 flow. Second operand 4 states and 672 transitions. [2023-08-25 03:56:29,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 111 transitions, 669 flow [2023-08-25 03:56:29,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 111 transitions, 609 flow, removed 14 selfloop flow, removed 9 redundant places. [2023-08-25 03:56:29,894 INFO L231 Difference]: Finished difference. Result has 82 places, 84 transitions, 407 flow [2023-08-25 03:56:29,895 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=407, PETRI_PLACES=82, PETRI_TRANSITIONS=84} [2023-08-25 03:56:29,895 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -4 predicate places. [2023-08-25 03:56:29,895 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 84 transitions, 407 flow [2023-08-25 03:56:29,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 151.2) internal successors, (756), 5 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:29,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:29,896 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:29,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 03:56:29,896 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:56:29,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:29,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1442658751, now seen corresponding path program 1 times [2023-08-25 03:56:29,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:29,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753882129] [2023-08-25 03:56:29,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:29,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:30,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:30,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:30,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753882129] [2023-08-25 03:56:30,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753882129] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:30,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:30,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 03:56:30,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678288199] [2023-08-25 03:56:30,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:30,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 03:56:30,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:30,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 03:56:30,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 03:56:30,097 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 340 [2023-08-25 03:56:30,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 84 transitions, 407 flow. Second operand has 5 states, 5 states have (on average 145.8) internal successors, (729), 5 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:30,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 340 [2023-08-25 03:56:30,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:30,242 INFO L124 PetriNetUnfolderBase]: 177/698 cut-off events. [2023-08-25 03:56:30,242 INFO L125 PetriNetUnfolderBase]: For 418/418 co-relation queries the response was YES. [2023-08-25 03:56:30,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2040 conditions, 698 events. 177/698 cut-off events. For 418/418 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3694 event pairs, 92 based on Foata normal form. 5/694 useless extension candidates. Maximal degree in co-relation 2021. Up to 412 conditions per place. [2023-08-25 03:56:30,245 INFO L140 encePairwiseOnDemand]: 335/340 looper letters, 67 selfloop transitions, 5 changer transitions 1/90 dead transitions. [2023-08-25 03:56:30,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 90 transitions, 564 flow [2023-08-25 03:56:30,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 03:56:30,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 03:56:30,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 624 transitions. [2023-08-25 03:56:30,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4588235294117647 [2023-08-25 03:56:30,247 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 624 transitions. [2023-08-25 03:56:30,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 624 transitions. [2023-08-25 03:56:30,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:30,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 624 transitions. [2023-08-25 03:56:30,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 340.0) internal successors, (1700), 5 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,251 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 340.0) internal successors, (1700), 5 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,251 INFO L175 Difference]: Start difference. First operand has 82 places, 84 transitions, 407 flow. Second operand 4 states and 624 transitions. [2023-08-25 03:56:30,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 90 transitions, 564 flow [2023-08-25 03:56:30,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 90 transitions, 552 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-25 03:56:30,254 INFO L231 Difference]: Finished difference. Result has 80 places, 76 transitions, 357 flow [2023-08-25 03:56:30,254 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=357, PETRI_PLACES=80, PETRI_TRANSITIONS=76} [2023-08-25 03:56:30,255 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -6 predicate places. [2023-08-25 03:56:30,255 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 76 transitions, 357 flow [2023-08-25 03:56:30,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 145.8) internal successors, (729), 5 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,255 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:30,255 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:30,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 03:56:30,256 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:56:30,256 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:30,256 INFO L85 PathProgramCache]: Analyzing trace with hash 365679209, now seen corresponding path program 1 times [2023-08-25 03:56:30,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:30,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860146936] [2023-08-25 03:56:30,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:30,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:30,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:30,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:30,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860146936] [2023-08-25 03:56:30,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860146936] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:30,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:30,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:56:30,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419928985] [2023-08-25 03:56:30,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:30,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:56:30,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:30,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:56:30,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:56:30,287 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 340 [2023-08-25 03:56:30,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 76 transitions, 357 flow. Second operand has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:30,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 340 [2023-08-25 03:56:30,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:30,399 INFO L124 PetriNetUnfolderBase]: 196/706 cut-off events. [2023-08-25 03:56:30,399 INFO L125 PetriNetUnfolderBase]: For 622/628 co-relation queries the response was YES. [2023-08-25 03:56:30,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2117 conditions, 706 events. 196/706 cut-off events. For 622/628 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3599 event pairs, 160 based on Foata normal form. 0/696 useless extension candidates. Maximal degree in co-relation 2099. Up to 573 conditions per place. [2023-08-25 03:56:30,401 INFO L140 encePairwiseOnDemand]: 337/340 looper letters, 48 selfloop transitions, 2 changer transitions 21/82 dead transitions. [2023-08-25 03:56:30,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 82 transitions, 521 flow [2023-08-25 03:56:30,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:56:30,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:56:30,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 553 transitions. [2023-08-25 03:56:30,403 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.542156862745098 [2023-08-25 03:56:30,403 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 553 transitions. [2023-08-25 03:56:30,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 553 transitions. [2023-08-25 03:56:30,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:30,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 553 transitions. [2023-08-25 03:56:30,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,406 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 340.0) internal successors, (1360), 4 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,406 INFO L175 Difference]: Start difference. First operand has 80 places, 76 transitions, 357 flow. Second operand 3 states and 553 transitions. [2023-08-25 03:56:30,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 82 transitions, 521 flow [2023-08-25 03:56:30,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 82 transitions, 503 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 03:56:30,409 INFO L231 Difference]: Finished difference. Result has 78 places, 59 transitions, 267 flow [2023-08-25 03:56:30,409 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=267, PETRI_PLACES=78, PETRI_TRANSITIONS=59} [2023-08-25 03:56:30,410 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -8 predicate places. [2023-08-25 03:56:30,410 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 59 transitions, 267 flow [2023-08-25 03:56:30,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,410 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:30,411 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:30,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 03:56:30,411 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:56:30,411 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:30,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1812766596, now seen corresponding path program 1 times [2023-08-25 03:56:30,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:30,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052570832] [2023-08-25 03:56:30,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:30,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:30,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:30,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:30,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052570832] [2023-08-25 03:56:30,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052570832] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:30,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:30,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 03:56:30,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510960585] [2023-08-25 03:56:30,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:30,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 03:56:30,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:30,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 03:56:30,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 03:56:30,574 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 340 [2023-08-25 03:56:30,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 59 transitions, 267 flow. Second operand has 5 states, 5 states have (on average 153.2) internal successors, (766), 5 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:30,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 340 [2023-08-25 03:56:30,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:30,647 INFO L124 PetriNetUnfolderBase]: 23/177 cut-off events. [2023-08-25 03:56:30,647 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2023-08-25 03:56:30,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 177 events. 23/177 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 440 event pairs, 4 based on Foata normal form. 16/193 useless extension candidates. Maximal degree in co-relation 497. Up to 88 conditions per place. [2023-08-25 03:56:30,648 INFO L140 encePairwiseOnDemand]: 336/340 looper letters, 42 selfloop transitions, 8 changer transitions 0/63 dead transitions. [2023-08-25 03:56:30,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 63 transitions, 389 flow [2023-08-25 03:56:30,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 03:56:30,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 03:56:30,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 631 transitions. [2023-08-25 03:56:30,651 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46397058823529413 [2023-08-25 03:56:30,651 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 631 transitions. [2023-08-25 03:56:30,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 631 transitions. [2023-08-25 03:56:30,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:30,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 631 transitions. [2023-08-25 03:56:30,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 157.75) internal successors, (631), 4 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 340.0) internal successors, (1700), 5 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,655 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 340.0) internal successors, (1700), 5 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,655 INFO L175 Difference]: Start difference. First operand has 78 places, 59 transitions, 267 flow. Second operand 4 states and 631 transitions. [2023-08-25 03:56:30,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 63 transitions, 389 flow [2023-08-25 03:56:30,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 63 transitions, 363 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-25 03:56:30,657 INFO L231 Difference]: Finished difference. Result has 65 places, 58 transitions, 251 flow [2023-08-25 03:56:30,657 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=251, PETRI_PLACES=65, PETRI_TRANSITIONS=58} [2023-08-25 03:56:30,658 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -21 predicate places. [2023-08-25 03:56:30,658 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 58 transitions, 251 flow [2023-08-25 03:56:30,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 153.2) internal successors, (766), 5 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:56:30,659 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:30,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 03:56:30,659 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 03:56:30,659 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:56:30,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1817425949, now seen corresponding path program 1 times [2023-08-25 03:56:30,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:56:30,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084619856] [2023-08-25 03:56:30,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:56:30,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:56:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:56:30,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:56:30,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:56:30,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084619856] [2023-08-25 03:56:30,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084619856] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:56:30,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:56:30,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 03:56:30,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227526927] [2023-08-25 03:56:30,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:56:30,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 03:56:30,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:56:30,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 03:56:30,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 03:56:30,821 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 340 [2023-08-25 03:56:30,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 58 transitions, 251 flow. Second operand has 5 states, 5 states have (on average 183.2) internal successors, (916), 5 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:56:30,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 340 [2023-08-25 03:56:30,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:56:30,914 INFO L124 PetriNetUnfolderBase]: 24/176 cut-off events. [2023-08-25 03:56:30,915 INFO L125 PetriNetUnfolderBase]: For 170/170 co-relation queries the response was YES. [2023-08-25 03:56:30,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 176 events. 24/176 cut-off events. For 170/170 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 440 event pairs, 8 based on Foata normal form. 2/176 useless extension candidates. Maximal degree in co-relation 469. Up to 84 conditions per place. [2023-08-25 03:56:30,915 INFO L140 encePairwiseOnDemand]: 334/340 looper letters, 0 selfloop transitions, 0 changer transitions 64/64 dead transitions. [2023-08-25 03:56:30,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 64 transitions, 387 flow [2023-08-25 03:56:30,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:56:30,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:56:30,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1098 transitions. [2023-08-25 03:56:30,918 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.538235294117647 [2023-08-25 03:56:30,918 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1098 transitions. [2023-08-25 03:56:30,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1098 transitions. [2023-08-25 03:56:30,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:56:30,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1098 transitions. [2023-08-25 03:56:30,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 340.0) internal successors, (2380), 7 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,924 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 340.0) internal successors, (2380), 7 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,925 INFO L175 Difference]: Start difference. First operand has 65 places, 58 transitions, 251 flow. Second operand 6 states and 1098 transitions. [2023-08-25 03:56:30,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 64 transitions, 387 flow [2023-08-25 03:56:30,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 64 transitions, 377 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 03:56:30,926 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2023-08-25 03:56:30,927 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2023-08-25 03:56:30,927 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -20 predicate places. [2023-08-25 03:56:30,927 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2023-08-25 03:56:30,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 183.2) internal successors, (916), 5 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:56:30,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2023-08-25 03:56:30,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (24 of 26 remaining) [2023-08-25 03:56:30,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2023-08-25 03:56:30,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONASSERT (22 of 26 remaining) [2023-08-25 03:56:30,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2023-08-25 03:56:30,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (20 of 26 remaining) [2023-08-25 03:56:30,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2023-08-25 03:56:30,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONASSERT (18 of 26 remaining) [2023-08-25 03:56:30,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2023-08-25 03:56:30,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 26 remaining) [2023-08-25 03:56:30,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2023-08-25 03:56:30,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2023-08-25 03:56:30,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2023-08-25 03:56:30,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2023-08-25 03:56:30,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2023-08-25 03:56:30,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2023-08-25 03:56:30,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2023-08-25 03:56:30,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2023-08-25 03:56:30,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2023-08-25 03:56:30,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2023-08-25 03:56:30,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2023-08-25 03:56:30,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2023-08-25 03:56:30,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2023-08-25 03:56:30,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2023-08-25 03:56:30,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2023-08-25 03:56:30,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2023-08-25 03:56:30,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 03:56:30,934 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:56:30,939 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 03:56:30,939 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 03:56:30,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:56:30 BasicIcfg [2023-08-25 03:56:30,942 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 03:56:30,942 INFO L158 Benchmark]: Toolchain (without parser) took 10160.01ms. Allocated memory was 354.4MB in the beginning and 610.3MB in the end (delta: 255.9MB). Free memory was 329.7MB in the beginning and 371.2MB in the end (delta: -41.5MB). Peak memory consumption was 215.0MB. Max. memory is 16.0GB. [2023-08-25 03:56:30,942 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 354.4MB. Free memory was 331.1MB in the beginning and 331.0MB in the end (delta: 87.1kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:56:30,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.84ms. Allocated memory is still 354.4MB. Free memory was 329.4MB in the beginning and 309.5MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 03:56:30,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.10ms. Allocated memory is still 354.4MB. Free memory was 309.5MB in the beginning and 307.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:56:30,943 INFO L158 Benchmark]: Boogie Preprocessor took 48.21ms. Allocated memory is still 354.4MB. Free memory was 307.3MB in the beginning and 305.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:56:30,943 INFO L158 Benchmark]: RCFGBuilder took 470.09ms. Allocated memory is still 354.4MB. Free memory was 305.6MB in the beginning and 286.5MB in the end (delta: 19.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 03:56:30,943 INFO L158 Benchmark]: TraceAbstraction took 9077.29ms. Allocated memory was 354.4MB in the beginning and 610.3MB in the end (delta: 255.9MB). Free memory was 285.6MB in the beginning and 371.2MB in the end (delta: -85.6MB). Peak memory consumption was 170.9MB. Max. memory is 16.0GB. [2023-08-25 03:56:30,944 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 354.4MB. Free memory was 331.1MB in the beginning and 331.0MB in the end (delta: 87.1kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 505.84ms. Allocated memory is still 354.4MB. Free memory was 329.4MB in the beginning and 309.5MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 51.10ms. Allocated memory is still 354.4MB. Free memory was 309.5MB in the beginning and 307.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 48.21ms. Allocated memory is still 354.4MB. Free memory was 307.3MB in the beginning and 305.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 470.09ms. Allocated memory is still 354.4MB. Free memory was 305.6MB in the beginning and 286.5MB in the end (delta: 19.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 9077.29ms. Allocated memory was 354.4MB in the beginning and 610.3MB in the end (delta: 255.9MB). Free memory was 285.6MB in the beginning and 371.2MB in the end (delta: -85.6MB). Peak memory consumption was 170.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 185 PlacesBefore, 86 PlacesAfterwards, 189 TransitionsBefore, 88 TransitionsAfterwards, 11310 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 94 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 143 TotalNumberOfCompositions, 51261 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13665, independent: 12715, independent conditional: 0, independent unconditional: 12715, dependent: 950, dependent conditional: 0, dependent unconditional: 950, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5684, independent: 5551, independent conditional: 0, independent unconditional: 5551, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13665, independent: 7164, independent conditional: 0, independent unconditional: 7164, dependent: 817, dependent conditional: 0, dependent unconditional: 817, unknown: 5684, unknown conditional: 0, unknown unconditional: 5684] , Statistics on independence cache: Total cache size (in pairs): 759, Positive cache size: 672, Positive conditional cache size: 0, Positive unconditional cache size: 672, Negative cache size: 87, Negative conditional cache size: 0, Negative unconditional cache size: 87, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 716]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: 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, 257 locations, 26 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: 8.9s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 537 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 537 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 116 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1757 IncrementalHoareTripleChecker+Invalid, 1873 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 116 mSolverCounterUnsat, 62 mSDtfsCounter, 1757 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=420occurred in iteration=10, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 333 NumberOfCodeBlocks, 333 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 1172 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 03:56:30,960 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...