/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:58:21,942 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:58:22,026 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 17:58:22,031 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:58:22,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:58:22,062 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:58:22,062 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:58:22,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:58:22,063 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:58:22,067 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:58:22,067 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:58:22,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:58:22,067 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:58:22,069 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:58:22,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:58:22,069 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:58:22,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:58:22,070 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:58:22,070 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:58:22,070 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:58:22,070 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:58:22,071 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:58:22,071 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:58:22,072 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:58:22,072 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:58:22,072 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:58:22,072 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:58:22,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:58:22,073 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:58:22,073 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:58:22,074 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:58:22,074 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:58:22,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:58:22,074 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:58:22,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:58:22,075 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:58:22,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:58:22,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:58:22,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:58:22,400 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:58:22,400 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:58:22,402 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2023-08-25 17:58:23,572 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:58:23,842 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:58:23,842 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2023-08-25 17:58:23,865 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57be91a88/5bc89bdda0614b9b873fda93159d48d0/FLAG2353ce70a [2023-08-25 17:58:23,881 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57be91a88/5bc89bdda0614b9b873fda93159d48d0 [2023-08-25 17:58:23,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:58:23,887 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:58:23,889 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:58:23,889 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:58:23,892 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:58:23,893 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:58:23" (1/1) ... [2023-08-25 17:58:23,894 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40b42875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:23, skipping insertion in model container [2023-08-25 17:58:23,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:58:23" (1/1) ... [2023-08-25 17:58:23,942 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:58:24,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:58:24,274 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:58:24,306 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-25 17:58:24,308 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-25 17:58:24,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:58:24,363 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:58:24,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24 WrapperNode [2023-08-25 17:58:24,363 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:58:24,364 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:58:24,364 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:58:24,364 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:58:24,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,382 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,417 INFO L138 Inliner]: procedures = 165, calls = 36, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 181 [2023-08-25 17:58:24,418 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:58:24,418 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:58:24,418 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:58:24,418 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:58:24,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,433 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,465 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,479 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,481 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,482 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,485 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:58:24,486 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:58:24,486 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:58:24,486 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:58:24,487 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:58:24,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:58:24,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 17:58:24,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 17:58:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 17:58:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2023-08-25 17:58:24,554 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2023-08-25 17:58:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:58:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:58:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:58:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:58:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:58:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:58:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:58:24,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:58:24,556 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 17:58:24,667 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:58:24,669 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:58:24,969 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:58:24,976 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:58:24,976 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-25 17:58:24,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:58:24 BoogieIcfgContainer [2023-08-25 17:58:24,978 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:58:24,979 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:58:24,979 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:58:24,982 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:58:24,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:58:23" (1/3) ... [2023-08-25 17:58:24,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3603090c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:58:24, skipping insertion in model container [2023-08-25 17:58:24,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (2/3) ... [2023-08-25 17:58:24,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3603090c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:58:24, skipping insertion in model container [2023-08-25 17:58:24,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:58:24" (3/3) ... [2023-08-25 17:58:24,984 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2023-08-25 17:58:25,001 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:58:25,001 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-08-25 17:58:25,001 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:58:25,108 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 17:58:25,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 195 places, 203 transitions, 411 flow [2023-08-25 17:58:25,248 INFO L124 PetriNetUnfolderBase]: 12/202 cut-off events. [2023-08-25 17:58:25,248 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:58:25,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 202 events. 12/202 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 398 event pairs, 0 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 158. Up to 2 conditions per place. [2023-08-25 17:58:25,257 INFO L82 GeneralOperation]: Start removeDead. Operand has 195 places, 203 transitions, 411 flow [2023-08-25 17:58:25,270 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 194 places, 202 transitions, 407 flow [2023-08-25 17:58:25,275 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:58:25,285 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 194 places, 202 transitions, 407 flow [2023-08-25 17:58:25,293 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 194 places, 202 transitions, 407 flow [2023-08-25 17:58:25,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 194 places, 202 transitions, 407 flow [2023-08-25 17:58:25,351 INFO L124 PetriNetUnfolderBase]: 12/202 cut-off events. [2023-08-25 17:58:25,351 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:58:25,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 202 events. 12/202 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 398 event pairs, 0 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 158. Up to 2 conditions per place. [2023-08-25 17:58:25,361 INFO L119 LiptonReduction]: Number of co-enabled transitions 11424 [2023-08-25 17:58:31,299 INFO L134 LiptonReduction]: Checked pairs total: 54553 [2023-08-25 17:58:31,299 INFO L136 LiptonReduction]: Total number of compositions: 158 [2023-08-25 17:58:31,311 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:58:31,316 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;@30262b53, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:58:31,316 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-08-25 17:58:31,317 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:58:31,318 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 17:58:31,318 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:58:31,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:31,318 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 17:58:31,319 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:31,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:31,322 INFO L85 PathProgramCache]: Analyzing trace with hash 753, now seen corresponding path program 1 times [2023-08-25 17:58:31,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:31,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249595024] [2023-08-25 17:58:31,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:31,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:31,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:31,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:31,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249595024] [2023-08-25 17:58:31,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249595024] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:31,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:31,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 17:58:31,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531453882] [2023-08-25 17:58:31,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:31,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 17:58:31,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:31,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 17:58:31,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 17:58:31,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 361 [2023-08-25 17:58:31,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 86 transitions, 175 flow. Second operand has 2 states, 2 states have (on average 192.5) internal successors, (385), 2 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:31,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:31,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 361 [2023-08-25 17:58:31,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:31,676 INFO L124 PetriNetUnfolderBase]: 214/749 cut-off events. [2023-08-25 17:58:31,677 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:58:31,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1144 conditions, 749 events. 214/749 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4461 event pairs, 149 based on Foata normal form. 21/671 useless extension candidates. Maximal degree in co-relation 1135. Up to 391 conditions per place. [2023-08-25 17:58:31,683 INFO L140 encePairwiseOnDemand]: 356/361 looper letters, 31 selfloop transitions, 0 changer transitions 0/79 dead transitions. [2023-08-25 17:58:31,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 79 transitions, 223 flow [2023-08-25 17:58:31,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 17:58:31,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 17:58:31,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 420 transitions. [2023-08-25 17:58:31,702 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5817174515235457 [2023-08-25 17:58:31,703 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 420 transitions. [2023-08-25 17:58:31,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 420 transitions. [2023-08-25 17:58:31,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:31,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 420 transitions. [2023-08-25 17:58:31,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 210.0) internal successors, (420), 2 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:31,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 361.0) internal successors, (1083), 3 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:31,719 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 361.0) internal successors, (1083), 3 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:31,721 INFO L175 Difference]: Start difference. First operand has 82 places, 86 transitions, 175 flow. Second operand 2 states and 420 transitions. [2023-08-25 17:58:31,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 79 transitions, 223 flow [2023-08-25 17:58:31,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 79 transitions, 222 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:58:31,726 INFO L231 Difference]: Finished difference. Result has 78 places, 79 transitions, 160 flow [2023-08-25 17:58:31,727 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=160, PETRI_PLACES=78, PETRI_TRANSITIONS=79} [2023-08-25 17:58:31,732 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -4 predicate places. [2023-08-25 17:58:31,732 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 79 transitions, 160 flow [2023-08-25 17:58:31,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 192.5) internal successors, (385), 2 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:31,733 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:31,733 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:31,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:58:31,733 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:31,741 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:31,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1715686429, now seen corresponding path program 1 times [2023-08-25 17:58:31,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:31,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795163172] [2023-08-25 17:58:31,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:31,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:32,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:32,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:32,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795163172] [2023-08-25 17:58:32,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795163172] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:32,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:32,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:58:32,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321944236] [2023-08-25 17:58:32,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:32,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:58:32,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:32,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:58:32,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:58:32,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 361 [2023-08-25 17:58:32,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 79 transitions, 160 flow. Second operand has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:32,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:32,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 361 [2023-08-25 17:58:32,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:33,183 INFO L124 PetriNetUnfolderBase]: 2725/5250 cut-off events. [2023-08-25 17:58:33,183 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:58:33,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10504 conditions, 5250 events. 2725/5250 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 30815 event pairs, 323 based on Foata normal form. 0/4400 useless extension candidates. Maximal degree in co-relation 10501. Up to 2424 conditions per place. [2023-08-25 17:58:33,208 INFO L140 encePairwiseOnDemand]: 321/361 looper letters, 192 selfloop transitions, 47 changer transitions 0/240 dead transitions. [2023-08-25 17:58:33,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 240 transitions, 960 flow [2023-08-25 17:58:33,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:58:33,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:58:33,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 970 transitions. [2023-08-25 17:58:33,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44783010156971376 [2023-08-25 17:58:33,212 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 970 transitions. [2023-08-25 17:58:33,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 970 transitions. [2023-08-25 17:58:33,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:33,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 970 transitions. [2023-08-25 17:58:33,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 161.66666666666666) internal successors, (970), 6 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:33,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:33,221 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:33,221 INFO L175 Difference]: Start difference. First operand has 78 places, 79 transitions, 160 flow. Second operand 6 states and 970 transitions. [2023-08-25 17:58:33,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 240 transitions, 960 flow [2023-08-25 17:58:33,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 240 transitions, 960 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:58:33,225 INFO L231 Difference]: Finished difference. Result has 88 places, 126 transitions, 522 flow [2023-08-25 17:58:33,226 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=522, PETRI_PLACES=88, PETRI_TRANSITIONS=126} [2023-08-25 17:58:33,226 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 6 predicate places. [2023-08-25 17:58:33,227 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 126 transitions, 522 flow [2023-08-25 17:58:33,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:33,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:33,228 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:33,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:58:33,228 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:33,228 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:33,229 INFO L85 PathProgramCache]: Analyzing trace with hash 289670483, now seen corresponding path program 1 times [2023-08-25 17:58:33,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:33,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880504054] [2023-08-25 17:58:33,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:33,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:33,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:33,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:33,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880504054] [2023-08-25 17:58:33,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880504054] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:33,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:33,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:58:33,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401405253] [2023-08-25 17:58:33,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:33,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:58:33,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:33,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:58:33,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:58:33,493 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 361 [2023-08-25 17:58:33,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 126 transitions, 522 flow. Second operand has 6 states, 6 states have (on average 126.66666666666667) internal successors, (760), 6 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:33,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:33,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 361 [2023-08-25 17:58:33,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:34,638 INFO L124 PetriNetUnfolderBase]: 3509/6799 cut-off events. [2023-08-25 17:58:34,639 INFO L125 PetriNetUnfolderBase]: For 3169/3169 co-relation queries the response was YES. [2023-08-25 17:58:34,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17855 conditions, 6799 events. 3509/6799 cut-off events. For 3169/3169 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 42047 event pairs, 645 based on Foata normal form. 0/5961 useless extension candidates. Maximal degree in co-relation 17847. Up to 3462 conditions per place. [2023-08-25 17:58:34,675 INFO L140 encePairwiseOnDemand]: 342/361 looper letters, 421 selfloop transitions, 37 changer transitions 0/461 dead transitions. [2023-08-25 17:58:34,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 461 transitions, 2910 flow [2023-08-25 17:58:34,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:58:34,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:58:34,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1035 transitions. [2023-08-25 17:58:34,678 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4778393351800554 [2023-08-25 17:58:34,678 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1035 transitions. [2023-08-25 17:58:34,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1035 transitions. [2023-08-25 17:58:34,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:34,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1035 transitions. [2023-08-25 17:58:34,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 172.5) internal successors, (1035), 6 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:34,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:34,687 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:34,687 INFO L175 Difference]: Start difference. First operand has 88 places, 126 transitions, 522 flow. Second operand 6 states and 1035 transitions. [2023-08-25 17:58:34,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 461 transitions, 2910 flow [2023-08-25 17:58:34,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 461 transitions, 2910 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:58:34,702 INFO L231 Difference]: Finished difference. Result has 98 places, 162 transitions, 830 flow [2023-08-25 17:58:34,703 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=830, PETRI_PLACES=98, PETRI_TRANSITIONS=162} [2023-08-25 17:58:34,703 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 16 predicate places. [2023-08-25 17:58:34,704 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 162 transitions, 830 flow [2023-08-25 17:58:34,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.66666666666667) internal successors, (760), 6 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:34,704 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:34,704 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:34,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:58:34,705 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr4ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:34,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:34,705 INFO L85 PathProgramCache]: Analyzing trace with hash 2066862266, now seen corresponding path program 1 times [2023-08-25 17:58:34,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:34,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899588632] [2023-08-25 17:58:34,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:34,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:34,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:34,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:34,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899588632] [2023-08-25 17:58:34,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899588632] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:34,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:34,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 17:58:34,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715933555] [2023-08-25 17:58:34,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:34,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 17:58:34,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:34,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 17:58:34,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 17:58:34,802 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 361 [2023-08-25 17:58:34,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 162 transitions, 830 flow. Second operand has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:34,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:34,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 361 [2023-08-25 17:58:34,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:35,753 INFO L124 PetriNetUnfolderBase]: 3350/7428 cut-off events. [2023-08-25 17:58:35,754 INFO L125 PetriNetUnfolderBase]: For 4236/4462 co-relation queries the response was YES. [2023-08-25 17:58:35,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21239 conditions, 7428 events. 3350/7428 cut-off events. For 4236/4462 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 56251 event pairs, 1039 based on Foata normal form. 58/6873 useless extension candidates. Maximal degree in co-relation 21226. Up to 3313 conditions per place. [2023-08-25 17:58:35,806 INFO L140 encePairwiseOnDemand]: 352/361 looper letters, 248 selfloop transitions, 14 changer transitions 0/306 dead transitions. [2023-08-25 17:58:35,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 306 transitions, 1928 flow [2023-08-25 17:58:35,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 17:58:35,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 17:58:35,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1046 transitions. [2023-08-25 17:58:35,809 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4139295607439652 [2023-08-25 17:58:35,810 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1046 transitions. [2023-08-25 17:58:35,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1046 transitions. [2023-08-25 17:58:35,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:35,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1046 transitions. [2023-08-25 17:58:35,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 149.42857142857142) internal successors, (1046), 7 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:35,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 361.0) internal successors, (2888), 8 states have internal predecessors, (2888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:35,818 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 361.0) internal successors, (2888), 8 states have internal predecessors, (2888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:35,818 INFO L175 Difference]: Start difference. First operand has 98 places, 162 transitions, 830 flow. Second operand 7 states and 1046 transitions. [2023-08-25 17:58:35,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 306 transitions, 1928 flow [2023-08-25 17:58:35,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 306 transitions, 1928 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:58:35,914 INFO L231 Difference]: Finished difference. Result has 109 places, 176 transitions, 945 flow [2023-08-25 17:58:35,914 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=945, PETRI_PLACES=109, PETRI_TRANSITIONS=176} [2023-08-25 17:58:35,915 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 27 predicate places. [2023-08-25 17:58:35,915 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 176 transitions, 945 flow [2023-08-25 17:58:35,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:35,916 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:35,916 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:35,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 17:58:35,916 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:35,917 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:35,917 INFO L85 PathProgramCache]: Analyzing trace with hash -923569067, now seen corresponding path program 1 times [2023-08-25 17:58:35,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:35,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617175730] [2023-08-25 17:58:35,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:35,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:36,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:36,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:36,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617175730] [2023-08-25 17:58:36,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617175730] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:36,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:36,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 17:58:36,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686884923] [2023-08-25 17:58:36,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:36,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 17:58:36,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:36,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 17:58:36,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 17:58:36,200 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 361 [2023-08-25 17:58:36,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 176 transitions, 945 flow. Second operand has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:36,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:36,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 361 [2023-08-25 17:58:36,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:37,440 INFO L124 PetriNetUnfolderBase]: 4054/8908 cut-off events. [2023-08-25 17:58:37,441 INFO L125 PetriNetUnfolderBase]: For 6249/6595 co-relation queries the response was YES. [2023-08-25 17:58:37,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26677 conditions, 8908 events. 4054/8908 cut-off events. For 6249/6595 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 69988 event pairs, 1471 based on Foata normal form. 117/8444 useless extension candidates. Maximal degree in co-relation 26658. Up to 6310 conditions per place. [2023-08-25 17:58:37,502 INFO L140 encePairwiseOnDemand]: 354/361 looper letters, 218 selfloop transitions, 14 changer transitions 0/276 dead transitions. [2023-08-25 17:58:37,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 276 transitions, 1812 flow [2023-08-25 17:58:37,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:58:37,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:58:37,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 898 transitions. [2023-08-25 17:58:37,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41458910433979684 [2023-08-25 17:58:37,506 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 898 transitions. [2023-08-25 17:58:37,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 898 transitions. [2023-08-25 17:58:37,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:37,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 898 transitions. [2023-08-25 17:58:37,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 149.66666666666666) internal successors, (898), 6 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:37,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:37,513 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:37,513 INFO L175 Difference]: Start difference. First operand has 109 places, 176 transitions, 945 flow. Second operand 6 states and 898 transitions. [2023-08-25 17:58:37,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 276 transitions, 1812 flow [2023-08-25 17:58:37,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 276 transitions, 1812 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:58:37,546 INFO L231 Difference]: Finished difference. Result has 118 places, 190 transitions, 1086 flow [2023-08-25 17:58:37,546 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1086, PETRI_PLACES=118, PETRI_TRANSITIONS=190} [2023-08-25 17:58:37,547 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 36 predicate places. [2023-08-25 17:58:37,547 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 190 transitions, 1086 flow [2023-08-25 17:58:37,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:37,547 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:37,548 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] [2023-08-25 17:58:37,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 17:58:37,548 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:37,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:37,548 INFO L85 PathProgramCache]: Analyzing trace with hash -91479639, now seen corresponding path program 1 times [2023-08-25 17:58:37,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:37,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023528870] [2023-08-25 17:58:37,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:37,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:37,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:37,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:37,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023528870] [2023-08-25 17:58:37,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023528870] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:37,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:37,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:58:37,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82545843] [2023-08-25 17:58:37,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:37,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:58:37,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:37,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:58:37,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:58:37,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 361 [2023-08-25 17:58:37,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 190 transitions, 1086 flow. Second operand has 6 states, 6 states have (on average 126.66666666666667) internal successors, (760), 6 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:37,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:37,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 361 [2023-08-25 17:58:37,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:39,769 INFO L124 PetriNetUnfolderBase]: 7163/13936 cut-off events. [2023-08-25 17:58:39,770 INFO L125 PetriNetUnfolderBase]: For 13322/13322 co-relation queries the response was YES. [2023-08-25 17:58:39,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45850 conditions, 13936 events. 7163/13936 cut-off events. For 13322/13322 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 100865 event pairs, 3468 based on Foata normal form. 0/13268 useless extension candidates. Maximal degree in co-relation 45826. Up to 12592 conditions per place. [2023-08-25 17:58:39,856 INFO L140 encePairwiseOnDemand]: 330/361 looper letters, 320 selfloop transitions, 153 changer transitions 0/476 dead transitions. [2023-08-25 17:58:39,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 476 transitions, 3523 flow [2023-08-25 17:58:39,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:58:39,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:58:39,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1008 transitions. [2023-08-25 17:58:39,860 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46537396121883656 [2023-08-25 17:58:39,860 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1008 transitions. [2023-08-25 17:58:39,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1008 transitions. [2023-08-25 17:58:39,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:39,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1008 transitions. [2023-08-25 17:58:39,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:39,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:39,867 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:39,867 INFO L175 Difference]: Start difference. First operand has 118 places, 190 transitions, 1086 flow. Second operand 6 states and 1008 transitions. [2023-08-25 17:58:39,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 476 transitions, 3523 flow [2023-08-25 17:58:39,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 476 transitions, 3513 flow, removed 5 selfloop flow, removed 0 redundant places. [2023-08-25 17:58:39,944 INFO L231 Difference]: Finished difference. Result has 128 places, 333 transitions, 2464 flow [2023-08-25 17:58:39,945 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=1076, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2464, PETRI_PLACES=128, PETRI_TRANSITIONS=333} [2023-08-25 17:58:39,948 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 46 predicate places. [2023-08-25 17:58:39,948 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 333 transitions, 2464 flow [2023-08-25 17:58:39,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.66666666666667) internal successors, (760), 6 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:39,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:39,949 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] [2023-08-25 17:58:39,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 17:58:39,950 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:39,950 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:39,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1655148550, now seen corresponding path program 1 times [2023-08-25 17:58:39,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:39,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481855086] [2023-08-25 17:58:39,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:39,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:40,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:40,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:40,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481855086] [2023-08-25 17:58:40,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481855086] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:40,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:40,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 17:58:40,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547640513] [2023-08-25 17:58:40,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:40,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 17:58:40,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:40,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 17:58:40,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 17:58:40,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 361 [2023-08-25 17:58:40,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 333 transitions, 2464 flow. Second operand has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:40,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:40,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 361 [2023-08-25 17:58:40,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:42,237 INFO L124 PetriNetUnfolderBase]: 6812/15319 cut-off events. [2023-08-25 17:58:42,237 INFO L125 PetriNetUnfolderBase]: For 21395/22031 co-relation queries the response was YES. [2023-08-25 17:58:42,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55115 conditions, 15319 events. 6812/15319 cut-off events. For 21395/22031 co-relation queries the response was YES. Maximal size of possible extension queue 440. Compared 137605 event pairs, 711 based on Foata normal form. 262/14829 useless extension candidates. Maximal degree in co-relation 55086. Up to 7570 conditions per place. [2023-08-25 17:58:42,474 INFO L140 encePairwiseOnDemand]: 354/361 looper letters, 539 selfloop transitions, 11 changer transitions 0/600 dead transitions. [2023-08-25 17:58:42,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 600 transitions, 5560 flow [2023-08-25 17:58:42,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 17:58:42,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 17:58:42,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 647 transitions. [2023-08-25 17:58:42,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44806094182825484 [2023-08-25 17:58:42,476 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 647 transitions. [2023-08-25 17:58:42,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 647 transitions. [2023-08-25 17:58:42,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:42,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 647 transitions. [2023-08-25 17:58:42,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 161.75) internal successors, (647), 4 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:42,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 361.0) internal successors, (1805), 5 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:42,481 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 361.0) internal successors, (1805), 5 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:42,481 INFO L175 Difference]: Start difference. First operand has 128 places, 333 transitions, 2464 flow. Second operand 4 states and 647 transitions. [2023-08-25 17:58:42,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 600 transitions, 5560 flow [2023-08-25 17:58:42,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 600 transitions, 5300 flow, removed 130 selfloop flow, removed 0 redundant places. [2023-08-25 17:58:42,610 INFO L231 Difference]: Finished difference. Result has 132 places, 338 transitions, 2396 flow [2023-08-25 17:58:42,611 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=2334, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2396, PETRI_PLACES=132, PETRI_TRANSITIONS=338} [2023-08-25 17:58:42,611 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 50 predicate places. [2023-08-25 17:58:42,611 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 338 transitions, 2396 flow [2023-08-25 17:58:42,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:42,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:42,613 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] [2023-08-25 17:58:42,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 17:58:42,614 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:42,614 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:42,616 INFO L85 PathProgramCache]: Analyzing trace with hash -493032312, now seen corresponding path program 2 times [2023-08-25 17:58:42,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:42,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36804423] [2023-08-25 17:58:42,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:42,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:42,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:42,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:42,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36804423] [2023-08-25 17:58:42,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36804423] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:42,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:42,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 17:58:42,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762504527] [2023-08-25 17:58:42,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:42,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 17:58:42,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:42,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 17:58:42,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 17:58:42,910 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 361 [2023-08-25 17:58:42,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 338 transitions, 2396 flow. Second operand has 4 states, 4 states have (on average 156.75) internal successors, (627), 4 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:42,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:42,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 361 [2023-08-25 17:58:42,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:43,049 INFO L124 PetriNetUnfolderBase]: 123/618 cut-off events. [2023-08-25 17:58:43,049 INFO L125 PetriNetUnfolderBase]: For 1761/1761 co-relation queries the response was YES. [2023-08-25 17:58:43,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2061 conditions, 618 events. 123/618 cut-off events. For 1761/1761 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2956 event pairs, 68 based on Foata normal form. 83/680 useless extension candidates. Maximal degree in co-relation 2030. Up to 249 conditions per place. [2023-08-25 17:58:43,053 INFO L140 encePairwiseOnDemand]: 356/361 looper letters, 48 selfloop transitions, 5 changer transitions 0/85 dead transitions. [2023-08-25 17:58:43,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 85 transitions, 621 flow [2023-08-25 17:58:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 17:58:43,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 17:58:43,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 651 transitions. [2023-08-25 17:58:43,057 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45083102493074795 [2023-08-25 17:58:43,057 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 651 transitions. [2023-08-25 17:58:43,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 651 transitions. [2023-08-25 17:58:43,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:43,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 651 transitions. [2023-08-25 17:58:43,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 162.75) internal successors, (651), 4 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:43,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 361.0) internal successors, (1805), 5 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:43,062 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 361.0) internal successors, (1805), 5 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:43,062 INFO L175 Difference]: Start difference. First operand has 132 places, 338 transitions, 2396 flow. Second operand 4 states and 651 transitions. [2023-08-25 17:58:43,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 85 transitions, 621 flow [2023-08-25 17:58:43,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 85 transitions, 409 flow, removed 71 selfloop flow, removed 27 redundant places. [2023-08-25 17:58:43,070 INFO L231 Difference]: Finished difference. Result has 98 places, 85 transitions, 323 flow [2023-08-25 17:58:43,070 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=323, PETRI_PLACES=98, PETRI_TRANSITIONS=85} [2023-08-25 17:58:43,072 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 16 predicate places. [2023-08-25 17:58:43,073 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 85 transitions, 323 flow [2023-08-25 17:58:43,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 156.75) internal successors, (627), 4 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:43,073 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:43,073 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] [2023-08-25 17:58:43,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 17:58:43,073 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:43,074 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:43,074 INFO L85 PathProgramCache]: Analyzing trace with hash -807088443, now seen corresponding path program 1 times [2023-08-25 17:58:43,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:43,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200811657] [2023-08-25 17:58:43,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:43,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:43,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:43,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:43,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200811657] [2023-08-25 17:58:43,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200811657] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:43,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:43,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:58:43,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114043908] [2023-08-25 17:58:43,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:43,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:58:43,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:43,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:58:43,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:58:43,340 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 361 [2023-08-25 17:58:43,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 85 transitions, 323 flow. Second operand has 6 states, 6 states have (on average 124.5) internal successors, (747), 6 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:43,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:43,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 361 [2023-08-25 17:58:43,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:43,516 INFO L124 PetriNetUnfolderBase]: 288/792 cut-off events. [2023-08-25 17:58:43,516 INFO L125 PetriNetUnfolderBase]: For 293/293 co-relation queries the response was YES. [2023-08-25 17:58:43,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1998 conditions, 792 events. 288/792 cut-off events. For 293/293 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3135 event pairs, 201 based on Foata normal form. 0/767 useless extension candidates. Maximal degree in co-relation 1979. Up to 770 conditions per place. [2023-08-25 17:58:43,519 INFO L140 encePairwiseOnDemand]: 355/361 looper letters, 85 selfloop transitions, 6 changer transitions 0/92 dead transitions. [2023-08-25 17:58:43,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 92 transitions, 519 flow [2023-08-25 17:58:43,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:58:43,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:58:43,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 791 transitions. [2023-08-25 17:58:43,522 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3651892890120037 [2023-08-25 17:58:43,522 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 791 transitions. [2023-08-25 17:58:43,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 791 transitions. [2023-08-25 17:58:43,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:43,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 791 transitions. [2023-08-25 17:58:43,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 131.83333333333334) internal successors, (791), 6 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:43,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:43,527 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:43,527 INFO L175 Difference]: Start difference. First operand has 98 places, 85 transitions, 323 flow. Second operand 6 states and 791 transitions. [2023-08-25 17:58:43,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 92 transitions, 519 flow [2023-08-25 17:58:43,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 92 transitions, 504 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 17:58:43,531 INFO L231 Difference]: Finished difference. Result has 98 places, 84 transitions, 318 flow [2023-08-25 17:58:43,531 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=318, PETRI_PLACES=98, PETRI_TRANSITIONS=84} [2023-08-25 17:58:43,532 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 16 predicate places. [2023-08-25 17:58:43,532 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 84 transitions, 318 flow [2023-08-25 17:58:43,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.5) internal successors, (747), 6 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:43,532 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:43,532 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] [2023-08-25 17:58:43,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 17:58:43,533 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:43,533 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:43,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1641088992, now seen corresponding path program 1 times [2023-08-25 17:58:43,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:43,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262486876] [2023-08-25 17:58:43,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:43,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:44,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:44,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:44,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262486876] [2023-08-25 17:58:44,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262486876] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:44,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:44,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:58:44,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525304862] [2023-08-25 17:58:44,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:44,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:58:44,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:44,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:58:44,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:58:44,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 361 [2023-08-25 17:58:44,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 84 transitions, 318 flow. Second operand has 11 states, 11 states have (on average 97.27272727272727) internal successors, (1070), 11 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:44,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:44,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 361 [2023-08-25 17:58:44,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:44,934 INFO L124 PetriNetUnfolderBase]: 312/906 cut-off events. [2023-08-25 17:58:44,934 INFO L125 PetriNetUnfolderBase]: For 340/340 co-relation queries the response was YES. [2023-08-25 17:58:44,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2278 conditions, 906 events. 312/906 cut-off events. For 340/340 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3720 event pairs, 116 based on Foata normal form. 0/880 useless extension candidates. Maximal degree in co-relation 2259. Up to 444 conditions per place. [2023-08-25 17:58:44,937 INFO L140 encePairwiseOnDemand]: 347/361 looper letters, 191 selfloop transitions, 16 changer transitions 0/208 dead transitions. [2023-08-25 17:58:44,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 208 transitions, 1114 flow [2023-08-25 17:58:44,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 17:58:44,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 17:58:44,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1319 transitions. [2023-08-25 17:58:44,942 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3044783010156971 [2023-08-25 17:58:44,942 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1319 transitions. [2023-08-25 17:58:44,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1319 transitions. [2023-08-25 17:58:44,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:44,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1319 transitions. [2023-08-25 17:58:44,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 109.91666666666667) internal successors, (1319), 12 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:44,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 361.0) internal successors, (4693), 13 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:44,951 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 361.0) internal successors, (4693), 13 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:44,951 INFO L175 Difference]: Start difference. First operand has 98 places, 84 transitions, 318 flow. Second operand 12 states and 1319 transitions. [2023-08-25 17:58:44,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 208 transitions, 1114 flow [2023-08-25 17:58:44,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 208 transitions, 1102 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 17:58:44,956 INFO L231 Difference]: Finished difference. Result has 113 places, 96 transitions, 440 flow [2023-08-25 17:58:44,957 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=440, PETRI_PLACES=113, PETRI_TRANSITIONS=96} [2023-08-25 17:58:44,958 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 31 predicate places. [2023-08-25 17:58:44,959 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 96 transitions, 440 flow [2023-08-25 17:58:44,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 97.27272727272727) internal successors, (1070), 11 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:44,959 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:44,959 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:44,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 17:58:44,960 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:44,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:44,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1955742423, now seen corresponding path program 1 times [2023-08-25 17:58:44,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:44,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428561763] [2023-08-25 17:58:44,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:44,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:45,294 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:45,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:45,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428561763] [2023-08-25 17:58:45,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428561763] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:45,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:45,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 17:58:45,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475324463] [2023-08-25 17:58:45,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:45,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 17:58:45,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:45,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 17:58:45,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 17:58:45,297 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 361 [2023-08-25 17:58:45,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 96 transitions, 440 flow. Second operand has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:45,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:45,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 361 [2023-08-25 17:58:45,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:45,510 INFO L124 PetriNetUnfolderBase]: 210/658 cut-off events. [2023-08-25 17:58:45,510 INFO L125 PetriNetUnfolderBase]: For 410/410 co-relation queries the response was YES. [2023-08-25 17:58:45,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1742 conditions, 658 events. 210/658 cut-off events. For 410/410 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2290 event pairs, 142 based on Foata normal form. 3/653 useless extension candidates. Maximal degree in co-relation 1714. Up to 500 conditions per place. [2023-08-25 17:58:45,513 INFO L140 encePairwiseOnDemand]: 355/361 looper letters, 76 selfloop transitions, 2 changer transitions 22/114 dead transitions. [2023-08-25 17:58:45,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 114 transitions, 689 flow [2023-08-25 17:58:45,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 17:58:45,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 17:58:45,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 696 transitions. [2023-08-25 17:58:45,516 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.385595567867036 [2023-08-25 17:58:45,516 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 696 transitions. [2023-08-25 17:58:45,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 696 transitions. [2023-08-25 17:58:45,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:45,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 696 transitions. [2023-08-25 17:58:45,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 139.2) internal successors, (696), 5 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:45,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:45,521 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:45,521 INFO L175 Difference]: Start difference. First operand has 113 places, 96 transitions, 440 flow. Second operand 5 states and 696 transitions. [2023-08-25 17:58:45,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 114 transitions, 689 flow [2023-08-25 17:58:45,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 114 transitions, 667 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-08-25 17:58:45,525 INFO L231 Difference]: Finished difference. Result has 118 places, 91 transitions, 384 flow [2023-08-25 17:58:45,525 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=384, PETRI_PLACES=118, PETRI_TRANSITIONS=91} [2023-08-25 17:58:45,526 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 36 predicate places. [2023-08-25 17:58:45,526 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 91 transitions, 384 flow [2023-08-25 17:58:45,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:45,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:45,527 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:45,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 17:58:45,527 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting workerErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:45,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:45,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1970855371, now seen corresponding path program 2 times [2023-08-25 17:58:45,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:45,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095505493] [2023-08-25 17:58:45,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:45,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:46,361 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:46,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:46,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095505493] [2023-08-25 17:58:46,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095505493] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 17:58:46,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796195316] [2023-08-25 17:58:46,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 17:58:46,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 17:58:46,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:58:46,366 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 17:58:46,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 17:58:46,746 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 17:58:46,747 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 17:58:46,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 60 conjunts are in the unsatisfiable core [2023-08-25 17:58:46,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 17:58:46,817 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2023-08-25 17:58:46,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 17:58:46,824 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 17:58:47,068 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-08-25 17:58:47,332 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2023-08-25 17:58:47,476 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:47,476 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 17:58:47,981 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:47,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796195316] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-25 17:58:47,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-25 17:58:47,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15, 12] total 37 [2023-08-25 17:58:47,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939416597] [2023-08-25 17:58:47,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:47,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 17:58:47,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:47,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 17:58:47,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=1168, Unknown=0, NotChecked=0, Total=1406 [2023-08-25 17:58:47,984 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 361 [2023-08-25 17:58:47,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 91 transitions, 384 flow. Second operand has 13 states, 13 states have (on average 102.3076923076923) internal successors, (1330), 13 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:47,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:47,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 361 [2023-08-25 17:58:47,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:48,879 INFO L124 PetriNetUnfolderBase]: 239/783 cut-off events. [2023-08-25 17:58:48,879 INFO L125 PetriNetUnfolderBase]: For 408/408 co-relation queries the response was YES. [2023-08-25 17:58:48,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2112 conditions, 783 events. 239/783 cut-off events. For 408/408 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3024 event pairs, 39 based on Foata normal form. 4/775 useless extension candidates. Maximal degree in co-relation 2082. Up to 313 conditions per place. [2023-08-25 17:58:48,884 INFO L140 encePairwiseOnDemand]: 348/361 looper letters, 148 selfloop transitions, 25 changer transitions 1/175 dead transitions. [2023-08-25 17:58:48,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 175 transitions, 1029 flow [2023-08-25 17:58:48,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-25 17:58:48,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-25 17:58:48,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1625 transitions. [2023-08-25 17:58:48,888 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.30009233610341646 [2023-08-25 17:58:48,888 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1625 transitions. [2023-08-25 17:58:48,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1625 transitions. [2023-08-25 17:58:48,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:48,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1625 transitions. [2023-08-25 17:58:48,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 108.33333333333333) internal successors, (1625), 15 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:48,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 361.0) internal successors, (5776), 16 states have internal predecessors, (5776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:48,900 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 361.0) internal successors, (5776), 16 states have internal predecessors, (5776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:48,900 INFO L175 Difference]: Start difference. First operand has 118 places, 91 transitions, 384 flow. Second operand 15 states and 1625 transitions. [2023-08-25 17:58:48,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 175 transitions, 1029 flow [2023-08-25 17:58:48,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 175 transitions, 1007 flow, removed 8 selfloop flow, removed 7 redundant places. [2023-08-25 17:58:48,905 INFO L231 Difference]: Finished difference. Result has 128 places, 103 transitions, 531 flow [2023-08-25 17:58:48,905 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=531, PETRI_PLACES=128, PETRI_TRANSITIONS=103} [2023-08-25 17:58:48,906 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 46 predicate places. [2023-08-25 17:58:48,906 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 103 transitions, 531 flow [2023-08-25 17:58:48,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 102.3076923076923) internal successors, (1330), 13 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:48,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:48,907 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:48,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 17:58:49,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-08-25 17:58:49,117 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting workerErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:49,117 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:49,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1903760798, now seen corresponding path program 1 times [2023-08-25 17:58:49,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:49,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588921073] [2023-08-25 17:58:49,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:49,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:50,363 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:50,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:50,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588921073] [2023-08-25 17:58:50,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588921073] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 17:58:50,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991736460] [2023-08-25 17:58:50,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:50,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 17:58:50,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:58:50,366 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 17:58:50,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 17:58:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:50,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 81 conjunts are in the unsatisfiable core [2023-08-25 17:58:50,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 17:58:50,568 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2023-08-25 17:58:50,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 17:58:50,573 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 17:58:50,836 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-08-25 17:58:51,344 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-08-25 17:58:51,464 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:51,464 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 17:58:52,044 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:52,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991736460] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 17:58:52,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 17:58:52,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 14] total 39 [2023-08-25 17:58:52,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821268430] [2023-08-25 17:58:52,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 17:58:52,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-08-25 17:58:52,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:52,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-08-25 17:58:52,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=1407, Unknown=0, NotChecked=0, Total=1640 [2023-08-25 17:58:52,050 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 361 [2023-08-25 17:58:52,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 103 transitions, 531 flow. Second operand has 41 states, 41 states have (on average 88.85365853658537) internal successors, (3643), 41 states have internal predecessors, (3643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:52,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:52,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 361 [2023-08-25 17:58:52,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:54,217 INFO L124 PetriNetUnfolderBase]: 399/1285 cut-off events. [2023-08-25 17:58:54,217 INFO L125 PetriNetUnfolderBase]: For 1016/1016 co-relation queries the response was YES. [2023-08-25 17:58:54,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3641 conditions, 1285 events. 399/1285 cut-off events. For 1016/1016 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 5442 event pairs, 142 based on Foata normal form. 12/1277 useless extension candidates. Maximal degree in co-relation 3609. Up to 545 conditions per place. [2023-08-25 17:58:54,222 INFO L140 encePairwiseOnDemand]: 341/361 looper letters, 210 selfloop transitions, 34 changer transitions 30/275 dead transitions. [2023-08-25 17:58:54,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 275 transitions, 1757 flow [2023-08-25 17:58:54,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-08-25 17:58:54,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-08-25 17:58:54,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2422 transitions. [2023-08-25 17:58:54,230 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.25804389516300874 [2023-08-25 17:58:54,231 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2422 transitions. [2023-08-25 17:58:54,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2422 transitions. [2023-08-25 17:58:54,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:54,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2422 transitions. [2023-08-25 17:58:54,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 93.15384615384616) internal successors, (2422), 26 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:54,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 361.0) internal successors, (9747), 27 states have internal predecessors, (9747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:54,250 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 361.0) internal successors, (9747), 27 states have internal predecessors, (9747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:54,250 INFO L175 Difference]: Start difference. First operand has 128 places, 103 transitions, 531 flow. Second operand 26 states and 2422 transitions. [2023-08-25 17:58:54,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 275 transitions, 1757 flow [2023-08-25 17:58:54,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 275 transitions, 1713 flow, removed 17 selfloop flow, removed 5 redundant places. [2023-08-25 17:58:54,260 INFO L231 Difference]: Finished difference. Result has 159 places, 121 transitions, 735 flow [2023-08-25 17:58:54,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=735, PETRI_PLACES=159, PETRI_TRANSITIONS=121} [2023-08-25 17:58:54,261 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 77 predicate places. [2023-08-25 17:58:54,261 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 121 transitions, 735 flow [2023-08-25 17:58:54,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 88.85365853658537) internal successors, (3643), 41 states have internal predecessors, (3643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:54,262 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:54,262 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:54,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 17:58:54,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-08-25 17:58:54,469 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting workerErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:54,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:54,469 INFO L85 PathProgramCache]: Analyzing trace with hash -280472207, now seen corresponding path program 2 times [2023-08-25 17:58:54,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:54,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014069309] [2023-08-25 17:58:54,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:54,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:56,665 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:56,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:56,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014069309] [2023-08-25 17:58:56,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014069309] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 17:58:56,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063630214] [2023-08-25 17:58:56,667 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 17:58:56,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 17:58:56,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:58:56,669 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 17:58:56,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-25 17:58:57,030 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 17:58:57,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 17:58:57,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 37 conjunts are in the unsatisfiable core [2023-08-25 17:58:57,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 17:58:57,582 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2023-08-25 17:58:57,776 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-08-25 17:58:57,810 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 17:58:57,810 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 17:58:58,287 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-08-25 17:58:58,287 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 32 [2023-08-25 17:58:58,322 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 17:58:58,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063630214] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 17:58:58,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 17:58:58,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10, 10] total 39 [2023-08-25 17:58:58,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014013269] [2023-08-25 17:58:58,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 17:58:58,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-08-25 17:58:58,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:58,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-08-25 17:58:58,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1377, Unknown=0, NotChecked=0, Total=1560 [2023-08-25 17:58:58,327 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 361 [2023-08-25 17:58:58,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 121 transitions, 735 flow. Second operand has 40 states, 40 states have (on average 99.475) internal successors, (3979), 40 states have internal predecessors, (3979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:58:58,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:58,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 361 [2023-08-25 17:58:58,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:59:00,828 INFO L124 PetriNetUnfolderBase]: 515/1677 cut-off events. [2023-08-25 17:59:00,829 INFO L125 PetriNetUnfolderBase]: For 1719/1719 co-relation queries the response was YES. [2023-08-25 17:59:00,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5078 conditions, 1677 events. 515/1677 cut-off events. For 1719/1719 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 7990 event pairs, 36 based on Foata normal form. 12/1669 useless extension candidates. Maximal degree in co-relation 5035. Up to 446 conditions per place. [2023-08-25 17:59:00,835 INFO L140 encePairwiseOnDemand]: 343/361 looper letters, 290 selfloop transitions, 62 changer transitions 32/385 dead transitions. [2023-08-25 17:59:00,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 385 transitions, 2619 flow [2023-08-25 17:59:00,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-08-25 17:59:00,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-08-25 17:59:00,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3717 transitions. [2023-08-25 17:59:00,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.28601108033240996 [2023-08-25 17:59:00,841 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 3717 transitions. [2023-08-25 17:59:00,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 3717 transitions. [2023-08-25 17:59:00,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:59:00,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 3717 transitions. [2023-08-25 17:59:00,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 103.25) internal successors, (3717), 36 states have internal predecessors, (3717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:59:00,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 361.0) internal successors, (13357), 37 states have internal predecessors, (13357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:59:00,860 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 361.0) internal successors, (13357), 37 states have internal predecessors, (13357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:59:00,860 INFO L175 Difference]: Start difference. First operand has 159 places, 121 transitions, 735 flow. Second operand 36 states and 3717 transitions. [2023-08-25 17:59:00,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 385 transitions, 2619 flow [2023-08-25 17:59:00,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 385 transitions, 2551 flow, removed 23 selfloop flow, removed 11 redundant places. [2023-08-25 17:59:00,875 INFO L231 Difference]: Finished difference. Result has 195 places, 149 transitions, 1107 flow [2023-08-25 17:59:00,875 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=1107, PETRI_PLACES=195, PETRI_TRANSITIONS=149} [2023-08-25 17:59:00,876 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 113 predicate places. [2023-08-25 17:59:00,876 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 149 transitions, 1107 flow [2023-08-25 17:59:00,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 99.475) internal successors, (3979), 40 states have internal predecessors, (3979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:59:00,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:59:00,877 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:59:00,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-25 17:59:01,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 17:59:01,085 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting workerErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:59:01,085 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:59:01,086 INFO L85 PathProgramCache]: Analyzing trace with hash -2084525310, now seen corresponding path program 3 times [2023-08-25 17:59:01,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:59:01,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704581030] [2023-08-25 17:59:01,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:59:01,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:59:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:59:02,510 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 41 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 17:59:02,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:59:02,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704581030] [2023-08-25 17:59:02,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704581030] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 17:59:02,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527199387] [2023-08-25 17:59:02,510 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 17:59:02,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 17:59:02,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:59:02,512 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 17:59:02,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-25 17:59:02,903 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 17:59:02,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 17:59:02,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 42 conjunts are in the unsatisfiable core [2023-08-25 17:59:02,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 17:59:03,316 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2023-08-25 17:59:03,557 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2023-08-25 17:59:03,634 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-25 17:59:03,650 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 41 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 17:59:03,650 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 17:59:04,103 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-08-25 17:59:04,104 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 36 [2023-08-25 17:59:04,125 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 41 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 17:59:04,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527199387] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 17:59:04,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 17:59:04,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 13] total 40 [2023-08-25 17:59:04,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265294127] [2023-08-25 17:59:04,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 17:59:04,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-08-25 17:59:04,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:59:04,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-08-25 17:59:04,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=1311, Unknown=0, NotChecked=0, Total=1560 [2023-08-25 17:59:04,130 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 361 [2023-08-25 17:59:04,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 149 transitions, 1107 flow. Second operand has 40 states, 40 states have (on average 98.175) internal successors, (3927), 40 states have internal predecessors, (3927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:59:04,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:59:04,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 361 [2023-08-25 17:59:04,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:59:05,757 INFO L124 PetriNetUnfolderBase]: 468/1585 cut-off events. [2023-08-25 17:59:05,758 INFO L125 PetriNetUnfolderBase]: For 2452/2452 co-relation queries the response was YES. [2023-08-25 17:59:05,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5102 conditions, 1585 events. 468/1585 cut-off events. For 2452/2452 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7698 event pairs, 62 based on Foata normal form. 4/1569 useless extension candidates. Maximal degree in co-relation 5047. Up to 610 conditions per place. [2023-08-25 17:59:05,766 INFO L140 encePairwiseOnDemand]: 343/361 looper letters, 0 selfloop transitions, 0 changer transitions 203/203 dead transitions. [2023-08-25 17:59:05,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 203 transitions, 1768 flow [2023-08-25 17:59:05,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-08-25 17:59:05,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-08-25 17:59:05,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2611 transitions. [2023-08-25 17:59:05,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2678772955781266 [2023-08-25 17:59:05,769 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 2611 transitions. [2023-08-25 17:59:05,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 2611 transitions. [2023-08-25 17:59:05,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:59:05,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 2611 transitions. [2023-08-25 17:59:05,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 96.70370370370371) internal successors, (2611), 27 states have internal predecessors, (2611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:59:05,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 361.0) internal successors, (10108), 28 states have internal predecessors, (10108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:59:05,780 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 361.0) internal successors, (10108), 28 states have internal predecessors, (10108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:59:05,780 INFO L175 Difference]: Start difference. First operand has 195 places, 149 transitions, 1107 flow. Second operand 27 states and 2611 transitions. [2023-08-25 17:59:05,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 203 transitions, 1768 flow [2023-08-25 17:59:05,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 203 transitions, 1595 flow, removed 40 selfloop flow, removed 22 redundant places. [2023-08-25 17:59:05,796 INFO L231 Difference]: Finished difference. Result has 188 places, 0 transitions, 0 flow [2023-08-25 17:59:05,796 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=909, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=0, PETRI_PLACES=188, PETRI_TRANSITIONS=0} [2023-08-25 17:59:05,797 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 106 predicate places. [2023-08-25 17:59:05,797 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 0 transitions, 0 flow [2023-08-25 17:59:05,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 98.175) internal successors, (3927), 40 states have internal predecessors, (3927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:59:05,800 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2023-08-25 17:59:05,801 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2023-08-25 17:59:05,801 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2023-08-25 17:59:05,801 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2023-08-25 17:59:05,801 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 21 remaining) [2023-08-25 17:59:05,801 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2023-08-25 17:59:05,801 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2023-08-25 17:59:05,801 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2023-08-25 17:59:05,801 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONASSERT (12 of 21 remaining) [2023-08-25 17:59:05,801 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2023-08-25 17:59:05,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONASSERT (10 of 21 remaining) [2023-08-25 17:59:05,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr6ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2023-08-25 17:59:05,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr7ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2023-08-25 17:59:05,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2023-08-25 17:59:05,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2023-08-25 17:59:05,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2023-08-25 17:59:05,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONASSERT (4 of 21 remaining) [2023-08-25 17:59:05,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2023-08-25 17:59:05,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONASSERT (2 of 21 remaining) [2023-08-25 17:59:05,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr6ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2023-08-25 17:59:05,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr7ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2023-08-25 17:59:05,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-25 17:59:06,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-08-25 17:59:06,012 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:59:06,016 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:59:06,016 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:59:06,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:59:06 BasicIcfg [2023-08-25 17:59:06,019 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:59:06,019 INFO L158 Benchmark]: Toolchain (without parser) took 42132.19ms. Allocated memory was 346.0MB in the beginning and 3.3GB in the end (delta: 3.0GB). Free memory was 321.2MB in the beginning and 1.7GB in the end (delta: -1.4GB). Peak memory consumption was 1.6GB. Max. memory is 16.0GB. [2023-08-25 17:59:06,019 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 346.0MB. Free memory is still 322.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:59:06,020 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.30ms. Allocated memory is still 346.0MB. Free memory was 321.2MB in the beginning and 300.7MB in the end (delta: 20.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 17:59:06,020 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.63ms. Allocated memory is still 346.0MB. Free memory was 300.7MB in the beginning and 297.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 17:59:06,020 INFO L158 Benchmark]: Boogie Preprocessor took 67.03ms. Allocated memory is still 346.0MB. Free memory was 297.6MB in the beginning and 295.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:59:06,020 INFO L158 Benchmark]: RCFGBuilder took 491.79ms. Allocated memory is still 346.0MB. Free memory was 295.0MB in the beginning and 317.7MB in the end (delta: -22.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-25 17:59:06,021 INFO L158 Benchmark]: TraceAbstraction took 41039.44ms. Allocated memory was 346.0MB in the beginning and 3.3GB in the end (delta: 3.0GB). Free memory was 317.7MB in the beginning and 1.7GB in the end (delta: -1.4GB). Peak memory consumption was 1.6GB. Max. memory is 16.0GB. [2023-08-25 17:59:06,022 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 346.0MB. Free memory is still 322.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 474.30ms. Allocated memory is still 346.0MB. Free memory was 321.2MB in the beginning and 300.7MB in the end (delta: 20.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 53.63ms. Allocated memory is still 346.0MB. Free memory was 300.7MB in the beginning and 297.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 67.03ms. Allocated memory is still 346.0MB. Free memory was 297.6MB in the beginning and 295.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 491.79ms. Allocated memory is still 346.0MB. Free memory was 295.0MB in the beginning and 317.7MB in the end (delta: -22.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 41039.44ms. Allocated memory was 346.0MB in the beginning and 3.3GB in the end (delta: 3.0GB). Free memory was 317.7MB in the beginning and 1.7GB in the end (delta: -1.4GB). Peak memory consumption was 1.6GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] - GenericResultAtLocation [Line: 233]: Unsoundness Warning unspecified type, defaulting to int C: short [233] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.0s, 194 PlacesBefore, 82 PlacesAfterwards, 202 TransitionsBefore, 86 TransitionsAfterwards, 11424 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 82 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 27 ConcurrentYvCompositions, 4 ChoiceCompositions, 158 TotalNumberOfCompositions, 54553 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10913, independent: 9794, independent conditional: 0, independent unconditional: 9794, dependent: 1119, dependent conditional: 0, dependent unconditional: 1119, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5491, independent: 5381, independent conditional: 0, independent unconditional: 5381, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10913, independent: 4413, independent conditional: 0, independent unconditional: 4413, dependent: 1009, dependent conditional: 0, dependent unconditional: 1009, unknown: 5491, unknown conditional: 0, unknown unconditional: 5491] , Statistics on independence cache: Total cache size (in pairs): 373, Positive cache size: 298, Positive conditional cache size: 0, Positive unconditional cache size: 298, Negative cache size: 75, Negative conditional cache size: 0, Negative unconditional cache size: 75, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 715]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 715]: there are no data races For all program executions holds that there are no data races 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: 726]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: 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: 727]: 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: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: 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, 287 locations, 21 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: 40.9s, OverallIterations: 15, TraceHistogramMax: 3, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 17.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2759 SdHoareTripleChecker+Valid, 6.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2759 mSDsluCounter, 725 SdHoareTripleChecker+Invalid, 5.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 515 mSDsCounter, 307 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11413 IncrementalHoareTripleChecker+Invalid, 11720 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 307 mSolverCounterUnsat, 210 mSDtfsCounter, 11413 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 868 GetRequests, 583 SyntacticMatches, 4 SemanticMatches, 281 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3584 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2464occurred in iteration=6, InterpolantAutomatonStates: 168, 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: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 13.9s InterpolantComputationTime, 894 NumberOfCodeBlocks, 874 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1195 ConstructedInterpolants, 87 QuantifiedInterpolants, 15415 SizeOfPredicates, 89 NumberOfNonLiveVariables, 2031 ConjunctsInSsa, 220 ConjunctsInUnsatCore, 23 InterpolantComputations, 12 PerfectInterpolantSequences, 273/370 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 17:59:06,041 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...