./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:45:22,633 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:45:22,719 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:45:22,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:45:22,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:45:22,756 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:45:22,758 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:45:22,759 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:45:22,760 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:45:22,762 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:45:22,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:45:22,763 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:45:22,763 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:45:22,764 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:45:22,765 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:45:22,766 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:45:22,766 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:45:22,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:45:22,768 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:45:22,769 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:45:22,769 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:45:22,770 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:45:22,771 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:45:22,771 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:45:22,771 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:45:22,771 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:45:22,772 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:45:22,772 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:45:22,772 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:45:22,772 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:45:22,773 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:45:22,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:45:22,773 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:45:22,773 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:45:22,774 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:45:22,774 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:45:22,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:45:22,777 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:45:22,777 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:45:22,778 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:45:22,778 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:45:22,778 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2024-11-20 13:45:23,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:45:23,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:45:23,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:45:23,082 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:45:23,083 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:45:23,084 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2024-11-20 13:45:24,514 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:45:24,777 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:45:24,778 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2024-11-20 13:45:24,796 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac0fb4b2/9d70c7739bbb44d3b80b2b62ff7d97ed/FLAG03842bfb6 [2024-11-20 13:45:24,810 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac0fb4b2/9d70c7739bbb44d3b80b2b62ff7d97ed [2024-11-20 13:45:24,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:45:24,814 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:45:24,816 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:45:24,816 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:45:24,821 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:45:24,821 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:45:24" (1/1) ... [2024-11-20 13:45:24,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9f17be5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:24, skipping insertion in model container [2024-11-20 13:45:24,822 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:45:24" (1/1) ... [2024-11-20 13:45:24,861 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:45:25,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:45:25,365 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:45:25,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:45:25,524 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:45:25,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:25 WrapperNode [2024-11-20 13:45:25,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:45:25,526 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:45:25,526 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:45:25,526 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:45:25,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:25" (1/1) ... [2024-11-20 13:45:25,560 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:25" (1/1) ... [2024-11-20 13:45:25,598 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 154 [2024-11-20 13:45:25,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:45:25,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:45:25,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:45:25,602 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:45:25,613 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:25" (1/1) ... [2024-11-20 13:45:25,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:25" (1/1) ... [2024-11-20 13:45:25,618 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:25" (1/1) ... [2024-11-20 13:45:25,622 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:25" (1/1) ... [2024-11-20 13:45:25,638 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:25" (1/1) ... [2024-11-20 13:45:25,641 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:25" (1/1) ... [2024-11-20 13:45:25,647 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:25" (1/1) ... [2024-11-20 13:45:25,648 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:25" (1/1) ... [2024-11-20 13:45:25,653 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:45:25,655 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:45:25,658 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:45:25,658 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:45:25,659 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:25" (1/1) ... [2024-11-20 13:45:25,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:45:25,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:25,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 13:45:25,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 13:45:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:45:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:45:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 13:45:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:45:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:45:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-20 13:45:25,747 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-20 13:45:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:45:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:45:25,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:45:25,749 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:45:25,865 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:45:25,867 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:45:26,191 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:45:26,191 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:45:26,217 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:45:26,217 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 13:45:26,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:45:26 BoogieIcfgContainer [2024-11-20 13:45:26,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:45:26,223 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:45:26,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:45:26,226 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:45:26,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:45:24" (1/3) ... [2024-11-20 13:45:26,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a113d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:45:26, skipping insertion in model container [2024-11-20 13:45:26,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:25" (2/3) ... [2024-11-20 13:45:26,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a113d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:45:26, skipping insertion in model container [2024-11-20 13:45:26,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:45:26" (3/3) ... [2024-11-20 13:45:26,231 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2024-11-20 13:45:26,247 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:45:26,248 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-20 13:45:26,248 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:45:26,338 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:45:26,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 164 transitions, 332 flow [2024-11-20 13:45:26,465 INFO L124 PetriNetUnfolderBase]: 4/163 cut-off events. [2024-11-20 13:45:26,466 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:45:26,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 163 events. 4/163 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2024-11-20 13:45:26,472 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 164 transitions, 332 flow [2024-11-20 13:45:26,479 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 163 transitions, 329 flow [2024-11-20 13:45:26,493 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:45:26,503 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@58ed87dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:45:26,504 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-20 13:45:26,536 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:45:26,537 INFO L124 PetriNetUnfolderBase]: 4/113 cut-off events. [2024-11-20 13:45:26,538 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:45:26,538 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:26,539 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-20 13:45:26,540 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:26,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:26,549 INFO L85 PathProgramCache]: Analyzing trace with hash 2026056588, now seen corresponding path program 1 times [2024-11-20 13:45:26,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:26,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738688686] [2024-11-20 13:45:26,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:26,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:26,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:26,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:26,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738688686] [2024-11-20 13:45:26,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738688686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:26,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:26,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:45:26,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626128427] [2024-11-20 13:45:26,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:27,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:45:27,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:27,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:45:27,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:45:27,062 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 164 [2024-11-20 13:45:27,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 163 transitions, 329 flow. Second operand has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:27,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:27,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 164 [2024-11-20 13:45:27,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:27,140 INFO L124 PetriNetUnfolderBase]: 7/224 cut-off events. [2024-11-20 13:45:27,140 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:45:27,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 224 events. 7/224 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 331 event pairs, 6 based on Foata normal form. 5/217 useless extension candidates. Maximal degree in co-relation 147. Up to 24 conditions per place. [2024-11-20 13:45:27,144 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 10 selfloop transitions, 2 changer transitions 1/161 dead transitions. [2024-11-20 13:45:27,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 161 transitions, 349 flow [2024-11-20 13:45:27,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:45:27,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:45:27,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 467 transitions. [2024-11-20 13:45:27,160 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9491869918699187 [2024-11-20 13:45:27,163 INFO L175 Difference]: Start difference. First operand has 163 places, 163 transitions, 329 flow. Second operand 3 states and 467 transitions. [2024-11-20 13:45:27,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 161 transitions, 349 flow [2024-11-20 13:45:27,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 161 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:45:27,171 INFO L231 Difference]: Finished difference. Result has 165 places, 160 transitions, 332 flow [2024-11-20 13:45:27,173 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=165, PETRI_TRANSITIONS=160} [2024-11-20 13:45:27,179 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 2 predicate places. [2024-11-20 13:45:27,179 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 160 transitions, 332 flow [2024-11-20 13:45:27,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:27,180 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:27,180 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-20 13:45:27,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:45:27,180 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:27,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:27,181 INFO L85 PathProgramCache]: Analyzing trace with hash -2050415652, now seen corresponding path program 1 times [2024-11-20 13:45:27,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:27,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239844523] [2024-11-20 13:45:27,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:27,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:27,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:27,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:27,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239844523] [2024-11-20 13:45:27,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239844523] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:27,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950429990] [2024-11-20 13:45:27,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:27,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:27,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:27,476 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) [2024-11-20 13:45:27,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 13:45:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:27,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 13:45:27,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:27,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:27,708 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:45:27,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:27,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950429990] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:45:27,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:45:27,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-20 13:45:27,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222535996] [2024-11-20 13:45:27,774 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:45:27,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 13:45:27,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:27,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 13:45:27,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-20 13:45:27,814 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 164 [2024-11-20 13:45:27,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 160 transitions, 332 flow. Second operand has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:27,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:27,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 164 [2024-11-20 13:45:27,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:27,947 INFO L124 PetriNetUnfolderBase]: 7/230 cut-off events. [2024-11-20 13:45:27,948 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:45:27,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 230 events. 7/230 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 324 event pairs, 6 based on Foata normal form. 2/221 useless extension candidates. Maximal degree in co-relation 194. Up to 24 conditions per place. [2024-11-20 13:45:27,949 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 14 selfloop transitions, 9 changer transitions 0/168 dead transitions. [2024-11-20 13:45:27,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 168 transitions, 396 flow [2024-11-20 13:45:27,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:27,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:27,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1348 transitions. [2024-11-20 13:45:27,957 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9132791327913279 [2024-11-20 13:45:27,957 INFO L175 Difference]: Start difference. First operand has 165 places, 160 transitions, 332 flow. Second operand 9 states and 1348 transitions. [2024-11-20 13:45:27,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 168 transitions, 396 flow [2024-11-20 13:45:27,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 168 transitions, 394 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:45:27,962 INFO L231 Difference]: Finished difference. Result has 174 places, 166 transitions, 380 flow [2024-11-20 13:45:27,963 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=380, PETRI_PLACES=174, PETRI_TRANSITIONS=166} [2024-11-20 13:45:27,963 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 11 predicate places. [2024-11-20 13:45:27,964 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 166 transitions, 380 flow [2024-11-20 13:45:27,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:27,965 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:27,965 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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, 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] [2024-11-20 13:45:27,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 13:45:28,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:28,167 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:28,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:28,168 INFO L85 PathProgramCache]: Analyzing trace with hash -307645988, now seen corresponding path program 2 times [2024-11-20 13:45:28,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:28,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550672246] [2024-11-20 13:45:28,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:28,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:28,374 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:28,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:28,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550672246] [2024-11-20 13:45:28,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550672246] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:28,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948227200] [2024-11-20 13:45:28,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 13:45:28,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:28,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:28,380 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) [2024-11-20 13:45:28,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 13:45:28,493 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 13:45:28,493 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:45:28,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-20 13:45:28,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:28,549 INFO L378 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 13:45:28,569 INFO L378 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 27 [2024-11-20 13:45:28,607 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:45:28,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 40 treesize of output 42 [2024-11-20 13:45:28,668 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:45:28,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-20 13:45:28,712 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-20 13:45:28,712 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:45:28,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948227200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:28,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:45:28,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-20 13:45:28,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930558395] [2024-11-20 13:45:28,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:28,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:45:28,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:28,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:45:28,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:29,296 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 164 [2024-11-20 13:45:29,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 166 transitions, 380 flow. Second operand has 6 states, 6 states have (on average 138.66666666666666) internal successors, (832), 6 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:29,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:29,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 164 [2024-11-20 13:45:29,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:29,506 INFO L124 PetriNetUnfolderBase]: 103/549 cut-off events. [2024-11-20 13:45:29,507 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-20 13:45:29,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 815 conditions, 549 events. 103/549 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2352 event pairs, 40 based on Foata normal form. 0/512 useless extension candidates. Maximal degree in co-relation 702. Up to 184 conditions per place. [2024-11-20 13:45:29,513 INFO L140 encePairwiseOnDemand]: 153/164 looper letters, 31 selfloop transitions, 22 changer transitions 0/195 dead transitions. [2024-11-20 13:45:29,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 195 transitions, 544 flow [2024-11-20 13:45:29,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:45:29,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:45:29,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 876 transitions. [2024-11-20 13:45:29,517 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8902439024390244 [2024-11-20 13:45:29,517 INFO L175 Difference]: Start difference. First operand has 174 places, 166 transitions, 380 flow. Second operand 6 states and 876 transitions. [2024-11-20 13:45:29,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 195 transitions, 544 flow [2024-11-20 13:45:29,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 195 transitions, 538 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-20 13:45:29,524 INFO L231 Difference]: Finished difference. Result has 183 places, 187 transitions, 524 flow [2024-11-20 13:45:29,526 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=524, PETRI_PLACES=183, PETRI_TRANSITIONS=187} [2024-11-20 13:45:29,527 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 20 predicate places. [2024-11-20 13:45:29,527 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 187 transitions, 524 flow [2024-11-20 13:45:29,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.66666666666666) internal successors, (832), 6 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:29,528 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:29,529 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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, 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] [2024-11-20 13:45:29,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-20 13:45:29,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-20 13:45:29,734 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:29,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:29,735 INFO L85 PathProgramCache]: Analyzing trace with hash -434552530, now seen corresponding path program 1 times [2024-11-20 13:45:29,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:29,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894701640] [2024-11-20 13:45:29,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:29,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:29,976 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:29,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:29,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894701640] [2024-11-20 13:45:29,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894701640] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:29,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306437106] [2024-11-20 13:45:29,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:29,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:29,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:29,979 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) [2024-11-20 13:45:29,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 13:45:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:30,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 13:45:30,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:30,119 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:30,120 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:45:30,216 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:30,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306437106] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:45:30,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:45:30,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-20 13:45:30,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090548506] [2024-11-20 13:45:30,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:45:30,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 13:45:30,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:30,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 13:45:30,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-20 13:45:30,260 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 164 [2024-11-20 13:45:30,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 187 transitions, 524 flow. Second operand has 18 states, 18 states have (on average 149.0) internal successors, (2682), 18 states have internal predecessors, (2682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:30,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:30,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 164 [2024-11-20 13:45:30,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:30,497 INFO L124 PetriNetUnfolderBase]: 35/396 cut-off events. [2024-11-20 13:45:30,497 INFO L125 PetriNetUnfolderBase]: For 57/62 co-relation queries the response was YES. [2024-11-20 13:45:30,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 396 events. 35/396 cut-off events. For 57/62 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1157 event pairs, 11 based on Foata normal form. 4/384 useless extension candidates. Maximal degree in co-relation 479. Up to 51 conditions per place. [2024-11-20 13:45:30,500 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 18 selfloop transitions, 21 changer transitions 0/205 dead transitions. [2024-11-20 13:45:30,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 205 transitions, 690 flow [2024-11-20 13:45:30,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 13:45:30,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-20 13:45:30,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3130 transitions. [2024-11-20 13:45:30,506 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9088269454123112 [2024-11-20 13:45:30,507 INFO L175 Difference]: Start difference. First operand has 183 places, 187 transitions, 524 flow. Second operand 21 states and 3130 transitions. [2024-11-20 13:45:30,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 205 transitions, 690 flow [2024-11-20 13:45:30,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 205 transitions, 690 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:45:30,514 INFO L231 Difference]: Finished difference. Result has 208 places, 200 transitions, 654 flow [2024-11-20 13:45:30,514 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=654, PETRI_PLACES=208, PETRI_TRANSITIONS=200} [2024-11-20 13:45:30,515 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 45 predicate places. [2024-11-20 13:45:30,515 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 200 transitions, 654 flow [2024-11-20 13:45:30,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 149.0) internal successors, (2682), 18 states have internal predecessors, (2682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:30,517 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:30,517 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 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, 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] [2024-11-20 13:45:30,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 13:45:30,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:30,718 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:30,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:30,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1059988178, now seen corresponding path program 2 times [2024-11-20 13:45:30,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:30,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875329637] [2024-11-20 13:45:30,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:30,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:31,151 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:31,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:31,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875329637] [2024-11-20 13:45:31,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875329637] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:31,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189258155] [2024-11-20 13:45:31,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 13:45:31,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:31,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:31,158 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) [2024-11-20 13:45:31,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 13:45:31,245 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 13:45:31,246 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:45:31,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-20 13:45:31,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:31,268 INFO L378 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 13:45:31,290 INFO L378 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 27 [2024-11-20 13:45:31,324 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:45:31,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 40 treesize of output 42 [2024-11-20 13:45:31,362 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:45:31,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-20 13:45:31,398 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-20 13:45:31,398 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:45:31,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189258155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:31,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:45:31,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-20 13:45:31,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152446055] [2024-11-20 13:45:31,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:31,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:45:31,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:31,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:45:31,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-20 13:45:31,822 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 164 [2024-11-20 13:45:31,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 200 transitions, 654 flow. Second operand has 6 states, 6 states have (on average 133.66666666666666) internal successors, (802), 6 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:31,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:31,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 164 [2024-11-20 13:45:31,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:32,043 INFO L124 PetriNetUnfolderBase]: 223/897 cut-off events. [2024-11-20 13:45:32,044 INFO L125 PetriNetUnfolderBase]: For 186/192 co-relation queries the response was YES. [2024-11-20 13:45:32,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1768 conditions, 897 events. 223/897 cut-off events. For 186/192 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4737 event pairs, 82 based on Foata normal form. 5/843 useless extension candidates. Maximal degree in co-relation 1571. Up to 407 conditions per place. [2024-11-20 13:45:32,052 INFO L140 encePairwiseOnDemand]: 149/164 looper letters, 53 selfloop transitions, 39 changer transitions 5/245 dead transitions. [2024-11-20 13:45:32,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 245 transitions, 968 flow [2024-11-20 13:45:32,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:45:32,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:45:32,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 862 transitions. [2024-11-20 13:45:32,055 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8760162601626016 [2024-11-20 13:45:32,055 INFO L175 Difference]: Start difference. First operand has 208 places, 200 transitions, 654 flow. Second operand 6 states and 862 transitions. [2024-11-20 13:45:32,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 245 transitions, 968 flow [2024-11-20 13:45:32,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 245 transitions, 944 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-20 13:45:32,064 INFO L231 Difference]: Finished difference. Result has 212 places, 236 transitions, 918 flow [2024-11-20 13:45:32,065 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=918, PETRI_PLACES=212, PETRI_TRANSITIONS=236} [2024-11-20 13:45:32,065 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 49 predicate places. [2024-11-20 13:45:32,065 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 236 transitions, 918 flow [2024-11-20 13:45:32,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.66666666666666) internal successors, (802), 6 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:32,066 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:32,066 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 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, 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] [2024-11-20 13:45:32,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 13:45:32,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:32,272 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:32,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:32,273 INFO L85 PathProgramCache]: Analyzing trace with hash 949760636, now seen corresponding path program 1 times [2024-11-20 13:45:32,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:32,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188585046] [2024-11-20 13:45:32,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:32,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:32,624 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:32,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:32,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188585046] [2024-11-20 13:45:32,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188585046] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:32,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156916257] [2024-11-20 13:45:32,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:32,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:32,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:32,628 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:45:32,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 13:45:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:32,723 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-20 13:45:32,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:32,828 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:32,829 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:45:33,036 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:33,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156916257] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:45:33,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:45:33,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-20 13:45:33,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483764472] [2024-11-20 13:45:33,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:45:33,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 13:45:33,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:33,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 13:45:33,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-20 13:45:33,067 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 164 [2024-11-20 13:45:33,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 236 transitions, 918 flow. Second operand has 23 states, 23 states have (on average 149.08695652173913) internal successors, (3429), 23 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:33,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:33,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 164 [2024-11-20 13:45:33,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:33,446 INFO L124 PetriNetUnfolderBase]: 123/673 cut-off events. [2024-11-20 13:45:33,447 INFO L125 PetriNetUnfolderBase]: For 313/316 co-relation queries the response was YES. [2024-11-20 13:45:33,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1420 conditions, 673 events. 123/673 cut-off events. For 313/316 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2953 event pairs, 15 based on Foata normal form. 3/648 useless extension candidates. Maximal degree in co-relation 1144. Up to 118 conditions per place. [2024-11-20 13:45:33,451 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 21 selfloop transitions, 30 changer transitions 0/253 dead transitions. [2024-11-20 13:45:33,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 253 transitions, 1142 flow [2024-11-20 13:45:33,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-20 13:45:33,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-20 13:45:33,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4464 transitions. [2024-11-20 13:45:33,460 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9073170731707317 [2024-11-20 13:45:33,460 INFO L175 Difference]: Start difference. First operand has 212 places, 236 transitions, 918 flow. Second operand 30 states and 4464 transitions. [2024-11-20 13:45:33,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 253 transitions, 1142 flow [2024-11-20 13:45:33,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 253 transitions, 1110 flow, removed 16 selfloop flow, removed 0 redundant places. [2024-11-20 13:45:33,468 INFO L231 Difference]: Finished difference. Result has 244 places, 246 transitions, 1038 flow [2024-11-20 13:45:33,468 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1038, PETRI_PLACES=244, PETRI_TRANSITIONS=246} [2024-11-20 13:45:33,469 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 81 predicate places. [2024-11-20 13:45:33,469 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 246 transitions, 1038 flow [2024-11-20 13:45:33,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 149.08695652173913) internal successors, (3429), 23 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:33,471 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:33,471 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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] [2024-11-20 13:45:33,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 13:45:33,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:33,675 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:33,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:33,676 INFO L85 PathProgramCache]: Analyzing trace with hash -350299956, now seen corresponding path program 2 times [2024-11-20 13:45:33,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:33,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368973679] [2024-11-20 13:45:33,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:33,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:34,408 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:34,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:34,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368973679] [2024-11-20 13:45:34,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368973679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:34,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:34,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:45:34,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057770273] [2024-11-20 13:45:34,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:34,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:45:34,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:34,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:45:34,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:45:34,570 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 164 [2024-11-20 13:45:34,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 246 transitions, 1038 flow. Second operand has 6 states, 6 states have (on average 141.33333333333334) internal successors, (848), 6 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:34,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:34,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 164 [2024-11-20 13:45:34,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:34,801 INFO L124 PetriNetUnfolderBase]: 212/934 cut-off events. [2024-11-20 13:45:34,801 INFO L125 PetriNetUnfolderBase]: For 594/648 co-relation queries the response was YES. [2024-11-20 13:45:34,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2194 conditions, 934 events. 212/934 cut-off events. For 594/648 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4923 event pairs, 40 based on Foata normal form. 3/919 useless extension candidates. Maximal degree in co-relation 1917. Up to 338 conditions per place. [2024-11-20 13:45:34,809 INFO L140 encePairwiseOnDemand]: 153/164 looper letters, 72 selfloop transitions, 40 changer transitions 0/285 dead transitions. [2024-11-20 13:45:34,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 285 transitions, 1446 flow [2024-11-20 13:45:34,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:45:34,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:45:34,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 891 transitions. [2024-11-20 13:45:34,812 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9054878048780488 [2024-11-20 13:45:34,813 INFO L175 Difference]: Start difference. First operand has 244 places, 246 transitions, 1038 flow. Second operand 6 states and 891 transitions. [2024-11-20 13:45:34,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 285 transitions, 1446 flow [2024-11-20 13:45:34,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 285 transitions, 1400 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-20 13:45:34,824 INFO L231 Difference]: Finished difference. Result has 236 places, 277 transitions, 1360 flow [2024-11-20 13:45:34,825 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=992, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1360, PETRI_PLACES=236, PETRI_TRANSITIONS=277} [2024-11-20 13:45:34,826 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 73 predicate places. [2024-11-20 13:45:34,826 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 277 transitions, 1360 flow [2024-11-20 13:45:34,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 141.33333333333334) internal successors, (848), 6 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:34,826 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:34,827 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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, 1] [2024-11-20 13:45:34,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:45:34,827 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:34,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:34,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1240008017, now seen corresponding path program 1 times [2024-11-20 13:45:34,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:34,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894513410] [2024-11-20 13:45:34,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:34,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:35,392 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:35,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:35,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894513410] [2024-11-20 13:45:35,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894513410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:35,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:35,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:45:35,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982114805] [2024-11-20 13:45:35,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:35,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:45:35,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:35,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:45:35,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:45:35,475 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 164 [2024-11-20 13:45:35,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 277 transitions, 1360 flow. Second operand has 6 states, 6 states have (on average 136.33333333333334) internal successors, (818), 6 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:35,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:35,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 164 [2024-11-20 13:45:35,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:35,801 INFO L124 PetriNetUnfolderBase]: 361/1334 cut-off events. [2024-11-20 13:45:35,801 INFO L125 PetriNetUnfolderBase]: For 1441/1488 co-relation queries the response was YES. [2024-11-20 13:45:35,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3673 conditions, 1334 events. 361/1334 cut-off events. For 1441/1488 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7922 event pairs, 87 based on Foata normal form. 2/1300 useless extension candidates. Maximal degree in co-relation 3413. Up to 610 conditions per place. [2024-11-20 13:45:35,811 INFO L140 encePairwiseOnDemand]: 149/164 looper letters, 100 selfloop transitions, 64 changer transitions 10/338 dead transitions. [2024-11-20 13:45:35,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 338 transitions, 2048 flow [2024-11-20 13:45:35,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:45:35,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:45:35,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 877 transitions. [2024-11-20 13:45:35,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.891260162601626 [2024-11-20 13:45:35,814 INFO L175 Difference]: Start difference. First operand has 236 places, 277 transitions, 1360 flow. Second operand 6 states and 877 transitions. [2024-11-20 13:45:35,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 338 transitions, 2048 flow [2024-11-20 13:45:35,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 338 transitions, 2030 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-20 13:45:35,830 INFO L231 Difference]: Finished difference. Result has 246 places, 324 transitions, 1928 flow [2024-11-20 13:45:35,830 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=1342, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1928, PETRI_PLACES=246, PETRI_TRANSITIONS=324} [2024-11-20 13:45:35,831 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 83 predicate places. [2024-11-20 13:45:35,831 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 324 transitions, 1928 flow [2024-11-20 13:45:35,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.33333333333334) internal successors, (818), 6 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:35,832 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:35,832 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:35,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 13:45:35,832 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:35,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:35,833 INFO L85 PathProgramCache]: Analyzing trace with hash -293257231, now seen corresponding path program 1 times [2024-11-20 13:45:35,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:35,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973022549] [2024-11-20 13:45:35,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:35,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:35,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:45,020 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:45,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:45,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973022549] [2024-11-20 13:45:45,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973022549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:45,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:45,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 13:45:45,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485795465] [2024-11-20 13:45:45,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:45,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 13:45:45,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:45,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 13:45:45,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-20 13:45:47,126 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 164 [2024-11-20 13:45:47,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 324 transitions, 1928 flow. Second operand has 15 states, 15 states have (on average 124.73333333333333) internal successors, (1871), 15 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:47,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:47,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 164 [2024-11-20 13:45:47,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:48,446 INFO L124 PetriNetUnfolderBase]: 461/1620 cut-off events. [2024-11-20 13:45:48,446 INFO L125 PetriNetUnfolderBase]: For 3017/3128 co-relation queries the response was YES. [2024-11-20 13:45:48,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5227 conditions, 1620 events. 461/1620 cut-off events. For 3017/3128 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 10164 event pairs, 19 based on Foata normal form. 50/1654 useless extension candidates. Maximal degree in co-relation 4950. Up to 562 conditions per place. [2024-11-20 13:45:48,460 INFO L140 encePairwiseOnDemand]: 137/164 looper letters, 190 selfloop transitions, 84 changer transitions 47/474 dead transitions. [2024-11-20 13:45:48,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 474 transitions, 3660 flow [2024-11-20 13:45:48,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 13:45:48,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-20 13:45:48,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2352 transitions. [2024-11-20 13:45:48,466 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7967479674796748 [2024-11-20 13:45:48,467 INFO L175 Difference]: Start difference. First operand has 246 places, 324 transitions, 1928 flow. Second operand 18 states and 2352 transitions. [2024-11-20 13:45:48,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 474 transitions, 3660 flow [2024-11-20 13:45:48,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 474 transitions, 3574 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-20 13:45:48,499 INFO L231 Difference]: Finished difference. Result has 271 places, 361 transitions, 2488 flow [2024-11-20 13:45:48,500 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=1854, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2488, PETRI_PLACES=271, PETRI_TRANSITIONS=361} [2024-11-20 13:45:48,501 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 108 predicate places. [2024-11-20 13:45:48,501 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 361 transitions, 2488 flow [2024-11-20 13:45:48,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 124.73333333333333) internal successors, (1871), 15 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:48,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:48,502 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:48,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 13:45:48,503 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:48,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:48,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1594603741, now seen corresponding path program 2 times [2024-11-20 13:45:48,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:48,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961992810] [2024-11-20 13:45:48,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:48,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:54,046 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:54,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:54,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961992810] [2024-11-20 13:45:54,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961992810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:54,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:54,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 13:45:54,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372844680] [2024-11-20 13:45:54,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:54,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 13:45:54,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:54,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 13:45:54,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-20 13:45:56,248 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 164 [2024-11-20 13:45:56,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 361 transitions, 2488 flow. Second operand has 15 states, 15 states have (on average 122.73333333333333) internal successors, (1841), 15 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:56,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:56,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 164 [2024-11-20 13:45:56,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:57,302 INFO L124 PetriNetUnfolderBase]: 456/1591 cut-off events. [2024-11-20 13:45:57,302 INFO L125 PetriNetUnfolderBase]: For 4463/4638 co-relation queries the response was YES. [2024-11-20 13:45:57,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5998 conditions, 1591 events. 456/1591 cut-off events. For 4463/4638 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 9875 event pairs, 80 based on Foata normal form. 105/1679 useless extension candidates. Maximal degree in co-relation 5711. Up to 662 conditions per place. [2024-11-20 13:45:57,320 INFO L140 encePairwiseOnDemand]: 137/164 looper letters, 173 selfloop transitions, 90 changer transitions 32/444 dead transitions. [2024-11-20 13:45:57,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 444 transitions, 3707 flow [2024-11-20 13:45:57,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 13:45:57,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-20 13:45:57,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1949 transitions. [2024-11-20 13:45:57,326 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7922764227642276 [2024-11-20 13:45:57,326 INFO L175 Difference]: Start difference. First operand has 271 places, 361 transitions, 2488 flow. Second operand 15 states and 1949 transitions. [2024-11-20 13:45:57,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 444 transitions, 3707 flow [2024-11-20 13:45:57,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 444 transitions, 3667 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-11-20 13:45:57,369 INFO L231 Difference]: Finished difference. Result has 280 places, 365 transitions, 2706 flow [2024-11-20 13:45:57,371 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=2453, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2706, PETRI_PLACES=280, PETRI_TRANSITIONS=365} [2024-11-20 13:45:57,371 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 117 predicate places. [2024-11-20 13:45:57,371 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 365 transitions, 2706 flow [2024-11-20 13:45:57,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 122.73333333333333) internal successors, (1841), 15 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:57,373 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:57,374 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:57,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 13:45:57,374 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:57,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:57,375 INFO L85 PathProgramCache]: Analyzing trace with hash 493863455, now seen corresponding path program 3 times [2024-11-20 13:45:57,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:57,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130190899] [2024-11-20 13:45:57,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:57,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:10,598 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:46:10,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:10,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130190899] [2024-11-20 13:46:10,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130190899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:10,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:10,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 13:46:10,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647147914] [2024-11-20 13:46:10,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:10,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 13:46:10,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:10,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 13:46:10,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-20 13:46:12,866 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 164 [2024-11-20 13:46:12,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 365 transitions, 2706 flow. Second operand has 15 states, 15 states have (on average 124.73333333333333) internal successors, (1871), 15 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:12,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:12,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 164 [2024-11-20 13:46:12,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:14,404 INFO L124 PetriNetUnfolderBase]: 779/2495 cut-off events. [2024-11-20 13:46:14,404 INFO L125 PetriNetUnfolderBase]: For 9718/9916 co-relation queries the response was YES. [2024-11-20 13:46:14,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10474 conditions, 2495 events. 779/2495 cut-off events. For 9718/9916 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 18242 event pairs, 52 based on Foata normal form. 79/2541 useless extension candidates. Maximal degree in co-relation 10183. Up to 632 conditions per place. [2024-11-20 13:46:14,422 INFO L140 encePairwiseOnDemand]: 139/164 looper letters, 352 selfloop transitions, 102 changer transitions 20/627 dead transitions. [2024-11-20 13:46:14,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 627 transitions, 6367 flow [2024-11-20 13:46:14,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 13:46:14,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-20 13:46:14,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2228 transitions. [2024-11-20 13:46:14,426 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7991391678622669 [2024-11-20 13:46:14,426 INFO L175 Difference]: Start difference. First operand has 280 places, 365 transitions, 2706 flow. Second operand 17 states and 2228 transitions. [2024-11-20 13:46:14,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 627 transitions, 6367 flow [2024-11-20 13:46:14,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 627 transitions, 6203 flow, removed 2 selfloop flow, removed 10 redundant places. [2024-11-20 13:46:14,481 INFO L231 Difference]: Finished difference. Result has 293 places, 445 transitions, 4114 flow [2024-11-20 13:46:14,481 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=2622, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4114, PETRI_PLACES=293, PETRI_TRANSITIONS=445} [2024-11-20 13:46:14,482 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 130 predicate places. [2024-11-20 13:46:14,482 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 445 transitions, 4114 flow [2024-11-20 13:46:14,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 124.73333333333333) internal successors, (1871), 15 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:14,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:14,483 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:14,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 13:46:14,483 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:46:14,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:14,484 INFO L85 PathProgramCache]: Analyzing trace with hash 452928057, now seen corresponding path program 4 times [2024-11-20 13:46:14,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:14,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071185071] [2024-11-20 13:46:14,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:14,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:18,962 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:46:18,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:18,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071185071] [2024-11-20 13:46:18,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071185071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:18,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:18,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:46:18,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992877841] [2024-11-20 13:46:18,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:18,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:46:18,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:18,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:46:18,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:46:20,424 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 164 [2024-11-20 13:46:20,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 445 transitions, 4114 flow. Second operand has 13 states, 13 states have (on average 123.15384615384616) internal successors, (1601), 13 states have internal predecessors, (1601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:20,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:20,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 164 [2024-11-20 13:46:20,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:21,412 INFO L124 PetriNetUnfolderBase]: 1172/3699 cut-off events. [2024-11-20 13:46:21,412 INFO L125 PetriNetUnfolderBase]: For 18523/18842 co-relation queries the response was YES. [2024-11-20 13:46:21,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16358 conditions, 3699 events. 1172/3699 cut-off events. For 18523/18842 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 30382 event pairs, 170 based on Foata normal form. 89/3744 useless extension candidates. Maximal degree in co-relation 16060. Up to 1365 conditions per place. [2024-11-20 13:46:21,446 INFO L140 encePairwiseOnDemand]: 140/164 looper letters, 397 selfloop transitions, 123 changer transitions 18/689 dead transitions. [2024-11-20 13:46:21,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 689 transitions, 7821 flow [2024-11-20 13:46:21,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 13:46:21,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-20 13:46:21,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2088 transitions. [2024-11-20 13:46:21,449 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7957317073170732 [2024-11-20 13:46:21,449 INFO L175 Difference]: Start difference. First operand has 293 places, 445 transitions, 4114 flow. Second operand 16 states and 2088 transitions. [2024-11-20 13:46:21,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 689 transitions, 7821 flow [2024-11-20 13:46:21,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 689 transitions, 7745 flow, removed 31 selfloop flow, removed 6 redundant places. [2024-11-20 13:46:21,543 INFO L231 Difference]: Finished difference. Result has 311 places, 527 transitions, 5806 flow [2024-11-20 13:46:21,544 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=4054, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=5806, PETRI_PLACES=311, PETRI_TRANSITIONS=527} [2024-11-20 13:46:21,545 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 148 predicate places. [2024-11-20 13:46:21,545 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 527 transitions, 5806 flow [2024-11-20 13:46:21,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 123.15384615384616) internal successors, (1601), 13 states have internal predecessors, (1601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:21,545 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:21,546 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:21,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 13:46:21,546 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:46:21,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:21,547 INFO L85 PathProgramCache]: Analyzing trace with hash -625843023, now seen corresponding path program 5 times [2024-11-20 13:46:21,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:21,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547756513] [2024-11-20 13:46:21,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:21,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:26,448 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:46:26,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:26,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547756513] [2024-11-20 13:46:26,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547756513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:26,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:26,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 13:46:26,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276604432] [2024-11-20 13:46:26,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:26,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 13:46:26,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:26,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 13:46:26,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-20 13:46:28,692 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 164 [2024-11-20 13:46:28,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 527 transitions, 5806 flow. Second operand has 15 states, 15 states have (on average 124.73333333333333) internal successors, (1871), 15 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:28,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:28,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 164 [2024-11-20 13:46:28,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:30,176 INFO L124 PetriNetUnfolderBase]: 1131/3589 cut-off events. [2024-11-20 13:46:30,176 INFO L125 PetriNetUnfolderBase]: For 23210/23554 co-relation queries the response was YES. [2024-11-20 13:46:30,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17135 conditions, 3589 events. 1131/3589 cut-off events. For 23210/23554 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 29400 event pairs, 142 based on Foata normal form. 121/3661 useless extension candidates. Maximal degree in co-relation 16829. Up to 1550 conditions per place. [2024-11-20 13:46:30,204 INFO L140 encePairwiseOnDemand]: 137/164 looper letters, 228 selfloop transitions, 205 changer transitions 20/607 dead transitions. [2024-11-20 13:46:30,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 607 transitions, 7619 flow [2024-11-20 13:46:30,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 13:46:30,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-20 13:46:30,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2078 transitions. [2024-11-20 13:46:30,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.791920731707317 [2024-11-20 13:46:30,208 INFO L175 Difference]: Start difference. First operand has 311 places, 527 transitions, 5806 flow. Second operand 16 states and 2078 transitions. [2024-11-20 13:46:30,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 607 transitions, 7619 flow [2024-11-20 13:46:30,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 607 transitions, 7456 flow, removed 71 selfloop flow, removed 7 redundant places. [2024-11-20 13:46:30,318 INFO L231 Difference]: Finished difference. Result has 324 places, 550 transitions, 6584 flow [2024-11-20 13:46:30,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=5646, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=182, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=6584, PETRI_PLACES=324, PETRI_TRANSITIONS=550} [2024-11-20 13:46:30,319 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 161 predicate places. [2024-11-20 13:46:30,319 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 550 transitions, 6584 flow [2024-11-20 13:46:30,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 124.73333333333333) internal successors, (1871), 15 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:30,320 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:30,320 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:30,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 13:46:30,320 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:46:30,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:30,321 INFO L85 PathProgramCache]: Analyzing trace with hash -368453015, now seen corresponding path program 6 times [2024-11-20 13:46:30,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:30,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485688115] [2024-11-20 13:46:30,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:30,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:34,442 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:46:34,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:34,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485688115] [2024-11-20 13:46:34,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485688115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:34,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:34,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 13:46:34,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598211130] [2024-11-20 13:46:34,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:34,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 13:46:34,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:34,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 13:46:34,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-20 13:46:36,415 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 164 [2024-11-20 13:46:36,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 550 transitions, 6584 flow. Second operand has 14 states, 14 states have (on average 123.07142857142857) internal successors, (1723), 14 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:36,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:36,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 164 [2024-11-20 13:46:36,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:37,670 INFO L124 PetriNetUnfolderBase]: 1181/3825 cut-off events. [2024-11-20 13:46:37,670 INFO L125 PetriNetUnfolderBase]: For 29095/29287 co-relation queries the response was YES. [2024-11-20 13:46:37,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18756 conditions, 3825 events. 1181/3825 cut-off events. For 29095/29287 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 32001 event pairs, 103 based on Foata normal form. 81/3865 useless extension candidates. Maximal degree in co-relation 18445. Up to 1122 conditions per place. [2024-11-20 13:46:37,703 INFO L140 encePairwiseOnDemand]: 139/164 looper letters, 392 selfloop transitions, 194 changer transitions 22/759 dead transitions. [2024-11-20 13:46:37,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 759 transitions, 9982 flow [2024-11-20 13:46:37,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 13:46:37,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-20 13:46:37,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2103 transitions. [2024-11-20 13:46:37,706 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8014481707317073 [2024-11-20 13:46:37,706 INFO L175 Difference]: Start difference. First operand has 324 places, 550 transitions, 6584 flow. Second operand 16 states and 2103 transitions. [2024-11-20 13:46:37,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 759 transitions, 9982 flow [2024-11-20 13:46:37,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 759 transitions, 9804 flow, removed 76 selfloop flow, removed 7 redundant places. [2024-11-20 13:46:37,880 INFO L231 Difference]: Finished difference. Result has 338 places, 574 transitions, 7542 flow [2024-11-20 13:46:37,881 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=6443, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=550, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=7542, PETRI_PLACES=338, PETRI_TRANSITIONS=574} [2024-11-20 13:46:37,882 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 175 predicate places. [2024-11-20 13:46:37,882 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 574 transitions, 7542 flow [2024-11-20 13:46:37,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 123.07142857142857) internal successors, (1723), 14 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:37,883 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:37,883 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:37,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 13:46:37,884 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:46:37,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:37,884 INFO L85 PathProgramCache]: Analyzing trace with hash -431594192, now seen corresponding path program 1 times [2024-11-20 13:46:37,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:37,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323163412] [2024-11-20 13:46:37,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:37,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:40,490 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:46:40,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:40,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323163412] [2024-11-20 13:46:40,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323163412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:40,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:40,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:46:40,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508223009] [2024-11-20 13:46:40,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:40,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:46:40,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:40,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:46:40,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:46:42,382 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-11-20 13:46:42,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 574 transitions, 7542 flow. Second operand has 13 states, 13 states have (on average 130.53846153846155) internal successors, (1697), 13 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:42,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:42,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-11-20 13:46:42,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand