./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-deagle/floating_read-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/pthread-deagle/floating_read-10.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 8144e99ab74da6c65d7c38142aa4ddc1b99b688ea06937a7acd153b5a75ad731 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:40:52,874 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:40:52,915 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:40:52,921 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:40:52,921 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:40:52,937 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:40:52,938 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:40:52,938 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:40:52,940 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:40:52,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:40:52,941 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:40:52,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:40:52,942 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:40:52,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:40:52,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:40:52,942 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:40:52,943 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:40:52,943 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:40:52,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:40:52,943 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:40:52,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:40:52,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:40:52,947 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:40:52,947 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:40:52,947 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:40:52,947 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:40:52,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:40:52,948 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:40:52,948 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:40:52,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:40:52,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:40:52,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:40:52,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:40:52,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:40:52,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:40:52,949 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:40:52,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:40:52,949 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:40:52,949 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:40:52,949 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:40:52,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:40:52,950 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8144e99ab74da6c65d7c38142aa4ddc1b99b688ea06937a7acd153b5a75ad731 [2024-11-12 12:40:53,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:40:53,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:40:53,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:40:53,164 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:40:53,165 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:40:53,166 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/floating_read-10.i [2024-11-12 12:40:54,364 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:40:54,557 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:40:54,558 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/floating_read-10.i [2024-11-12 12:40:54,572 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d52d7047/1ada0ec48bf34c76b620902c31355c1f/FLAG4db0f6e6c [2024-11-12 12:40:54,583 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d52d7047/1ada0ec48bf34c76b620902c31355c1f [2024-11-12 12:40:54,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:40:54,586 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:40:54,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:40:54,587 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:40:54,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:40:54,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:40:54" (1/1) ... [2024-11-12 12:40:54,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da87e75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:40:54, skipping insertion in model container [2024-11-12 12:40:54,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:40:54" (1/1) ... [2024-11-12 12:40:54,625 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:40:54,895 WARN L1674 CHandler]: Possible shadowing of function thread [2024-11-12 12:40:54,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:40:54,930 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:40:54,958 WARN L1674 CHandler]: Possible shadowing of function thread [2024-11-12 12:40:54,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:40:54,995 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:40:54,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:40:54 WrapperNode [2024-11-12 12:40:54,995 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:40:54,996 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:40:54,996 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:40:54,996 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:40:55,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:40:54" (1/1) ... [2024-11-12 12:40:55,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:40:54" (1/1) ... [2024-11-12 12:40:55,035 INFO L138 Inliner]: procedures = 162, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2024-11-12 12:40:55,036 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:40:55,036 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:40:55,036 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:40:55,036 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:40:55,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:40:54" (1/1) ... [2024-11-12 12:40:55,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:40:54" (1/1) ... [2024-11-12 12:40:55,047 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:40:54" (1/1) ... [2024-11-12 12:40:55,047 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:40:54" (1/1) ... [2024-11-12 12:40:55,052 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:40:54" (1/1) ... [2024-11-12 12:40:55,055 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:40:54" (1/1) ... [2024-11-12 12:40:55,056 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:40:54" (1/1) ... [2024-11-12 12:40:55,057 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:40:54" (1/1) ... [2024-11-12 12:40:55,058 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:40:55,059 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:40:55,059 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:40:55,059 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:40:55,060 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:40:54" (1/1) ... [2024-11-12 12:40:55,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:40:55,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:40:55,088 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) [2024-11-12 12:40:55,093 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 [2024-11-12 12:40:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-12 12:40:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-12 12:40:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-12 12:40:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:40:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 12:40:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 12:40:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 12:40:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-12 12:40:55,145 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-12 12:40:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-12 12:40:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:40:55,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:40:55,148 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 12:40:55,284 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:40:55,286 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:40:55,434 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:40:55,434 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:40:55,465 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:40:55,466 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-12 12:40:55,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:40:55 BoogieIcfgContainer [2024-11-12 12:40:55,466 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:40:55,469 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:40:55,469 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:40:55,472 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:40:55,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:40:54" (1/3) ... [2024-11-12 12:40:55,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efbe23b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:40:55, skipping insertion in model container [2024-11-12 12:40:55,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:40:54" (2/3) ... [2024-11-12 12:40:55,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efbe23b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:40:55, skipping insertion in model container [2024-11-12 12:40:55,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:40:55" (3/3) ... [2024-11-12 12:40:55,474 INFO L112 eAbstractionObserver]: Analyzing ICFG floating_read-10.i [2024-11-12 12:40:55,487 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:40:55,487 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-11-12 12:40:55,487 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:40:55,521 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-12 12:40:55,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 75 transitions, 157 flow [2024-11-12 12:40:55,590 INFO L124 PetriNetUnfolderBase]: 9/119 cut-off events. [2024-11-12 12:40:55,591 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:40:55,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 119 events. 9/119 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 230 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 60. Up to 4 conditions per place. [2024-11-12 12:40:55,596 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 75 transitions, 157 flow [2024-11-12 12:40:55,600 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 75 transitions, 157 flow [2024-11-12 12:40:55,612 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:40:55,618 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;@749305e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:40:55,619 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-12 12:40:55,626 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:40:55,627 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-12 12:40:55,627 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:40:55,627 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:55,628 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:40:55,629 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-12 12:40:55,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:55,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1413199819, now seen corresponding path program 1 times [2024-11-12 12:40:55,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:55,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038144204] [2024-11-12 12:40:55,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:55,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:55,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:40:55,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:55,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038144204] [2024-11-12 12:40:55,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038144204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:55,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:55,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 12:40:55,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684742621] [2024-11-12 12:40:55,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:55,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 12:40:55,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:55,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 12:40:55,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 12:40:55,801 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 75 [2024-11-12 12:40:55,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 75 transitions, 157 flow. Second operand has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:55,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:40:55,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 75 [2024-11-12 12:40:55,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:40:55,832 INFO L124 PetriNetUnfolderBase]: 1/105 cut-off events. [2024-11-12 12:40:55,832 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2024-11-12 12:40:55,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 105 events. 1/105 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 190 event pairs, 0 based on Foata normal form. 8/101 useless extension candidates. Maximal degree in co-relation 3. Up to 5 conditions per place. [2024-11-12 12:40:55,833 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 4 selfloop transitions, 0 changer transitions 12/67 dead transitions. [2024-11-12 12:40:55,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 67 transitions, 149 flow [2024-11-12 12:40:55,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 12:40:55,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-12 12:40:55,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 138 transitions. [2024-11-12 12:40:55,844 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.92 [2024-11-12 12:40:55,846 INFO L175 Difference]: Start difference. First operand has 73 places, 75 transitions, 157 flow. Second operand 2 states and 138 transitions. [2024-11-12 12:40:55,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 67 transitions, 149 flow [2024-11-12 12:40:55,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 67 transitions, 149 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:40:55,851 INFO L231 Difference]: Finished difference. Result has 70 places, 55 transitions, 117 flow [2024-11-12 12:40:55,854 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=117, PETRI_PLACES=70, PETRI_TRANSITIONS=55} [2024-11-12 12:40:55,856 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, -3 predicate places. [2024-11-12 12:40:55,856 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 55 transitions, 117 flow [2024-11-12 12:40:55,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:55,857 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:55,857 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:40:55,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:40:55,857 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-12 12:40:55,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:55,858 INFO L85 PathProgramCache]: Analyzing trace with hash -968080929, now seen corresponding path program 1 times [2024-11-12 12:40:55,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:55,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010791103] [2024-11-12 12:40:55,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:55,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:55,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:40:55,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:55,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010791103] [2024-11-12 12:40:55,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010791103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:55,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:55,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:40:55,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123266433] [2024-11-12 12:40:55,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:55,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:40:55,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:55,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:40:55,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:40:56,028 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 75 [2024-11-12 12:40:56,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 55 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:56,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:40:56,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 75 [2024-11-12 12:40:56,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:40:56,065 INFO L124 PetriNetUnfolderBase]: 3/106 cut-off events. [2024-11-12 12:40:56,065 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-12 12:40:56,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 106 events. 3/106 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 190 event pairs, 0 based on Foata normal form. 1/99 useless extension candidates. Maximal degree in co-relation 124. Up to 13 conditions per place. [2024-11-12 12:40:56,066 INFO L140 encePairwiseOnDemand]: 72/75 looper letters, 8 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2024-11-12 12:40:56,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 56 transitions, 139 flow [2024-11-12 12:40:56,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:40:56,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:40:56,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2024-11-12 12:40:56,069 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8222222222222222 [2024-11-12 12:40:56,069 INFO L175 Difference]: Start difference. First operand has 70 places, 55 transitions, 117 flow. Second operand 3 states and 185 transitions. [2024-11-12 12:40:56,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 56 transitions, 139 flow [2024-11-12 12:40:56,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 56 transitions, 139 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:40:56,074 INFO L231 Difference]: Finished difference. Result has 61 places, 55 transitions, 125 flow [2024-11-12 12:40:56,074 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=61, PETRI_TRANSITIONS=55} [2024-11-12 12:40:56,075 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, -12 predicate places. [2024-11-12 12:40:56,075 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 55 transitions, 125 flow [2024-11-12 12:40:56,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:56,075 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:56,075 INFO L206 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] [2024-11-12 12:40:56,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 12:40:56,075 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-12 12:40:56,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:56,076 INFO L85 PathProgramCache]: Analyzing trace with hash 305169799, now seen corresponding path program 1 times [2024-11-12 12:40:56,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:56,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523589874] [2024-11-12 12:40:56,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:56,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:56,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:40:56,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:56,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523589874] [2024-11-12 12:40:56,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523589874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:56,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:56,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:40:56,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947588947] [2024-11-12 12:40:56,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:56,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:40:56,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:56,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:40:56,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:40:56,615 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 75 [2024-11-12 12:40:56,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 55 transitions, 125 flow. Second operand has 6 states, 6 states have (on average 47.666666666666664) internal successors, (286), 6 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:56,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:40:56,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 75 [2024-11-12 12:40:56,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:40:56,688 INFO L124 PetriNetUnfolderBase]: 12/112 cut-off events. [2024-11-12 12:40:56,688 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 12:40:56,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 112 events. 12/112 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 255 event pairs, 2 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 175. Up to 32 conditions per place. [2024-11-12 12:40:56,690 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 18 selfloop transitions, 5 changer transitions 0/58 dead transitions. [2024-11-12 12:40:56,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 58 transitions, 177 flow [2024-11-12 12:40:56,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:40:56,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:40:56,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 300 transitions. [2024-11-12 12:40:56,695 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-12 12:40:56,695 INFO L175 Difference]: Start difference. First operand has 61 places, 55 transitions, 125 flow. Second operand 6 states and 300 transitions. [2024-11-12 12:40:56,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 58 transitions, 177 flow [2024-11-12 12:40:56,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 58 transitions, 173 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:40:56,698 INFO L231 Difference]: Finished difference. Result has 63 places, 54 transitions, 129 flow [2024-11-12 12:40:56,699 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=129, PETRI_PLACES=63, PETRI_TRANSITIONS=54} [2024-11-12 12:40:56,699 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, -10 predicate places. [2024-11-12 12:40:56,699 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 54 transitions, 129 flow [2024-11-12 12:40:56,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 47.666666666666664) internal successors, (286), 6 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:56,700 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:56,700 INFO L206 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] [2024-11-12 12:40:56,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 12:40:56,700 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-12 12:40:56,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:56,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1477123848, now seen corresponding path program 1 times [2024-11-12 12:40:56,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:56,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757630731] [2024-11-12 12:40:56,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:56,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:56,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:40:56,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:56,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757630731] [2024-11-12 12:40:56,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757630731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:56,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:56,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:40:56,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67644691] [2024-11-12 12:40:56,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:56,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:40:56,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:56,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:40:56,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:40:56,805 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 75 [2024-11-12 12:40:56,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 54 transitions, 129 flow. Second operand has 5 states, 5 states have (on average 57.8) internal successors, (289), 5 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:56,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:40:56,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 75 [2024-11-12 12:40:56,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:40:56,839 INFO L124 PetriNetUnfolderBase]: 3/62 cut-off events. [2024-11-12 12:40:56,840 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:40:56,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 62 events. 3/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 58 event pairs, 0 based on Foata normal form. 2/64 useless extension candidates. Maximal degree in co-relation 94. Up to 4 conditions per place. [2024-11-12 12:40:56,840 INFO L140 encePairwiseOnDemand]: 70/75 looper letters, 7 selfloop transitions, 4 changer transitions 0/38 dead transitions. [2024-11-12 12:40:56,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 38 transitions, 114 flow [2024-11-12 12:40:56,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:40:56,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:40:56,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 348 transitions. [2024-11-12 12:40:56,842 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7733333333333333 [2024-11-12 12:40:56,842 INFO L175 Difference]: Start difference. First operand has 63 places, 54 transitions, 129 flow. Second operand 6 states and 348 transitions. [2024-11-12 12:40:56,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 38 transitions, 114 flow [2024-11-12 12:40:56,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 102 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-12 12:40:56,843 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 82 flow [2024-11-12 12:40:56,843 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=82, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2024-11-12 12:40:56,844 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, -29 predicate places. [2024-11-12 12:40:56,844 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 82 flow [2024-11-12 12:40:56,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.8) internal successors, (289), 5 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:56,845 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:56,845 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:40:56,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 12:40:56,845 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-12 12:40:56,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:56,846 INFO L85 PathProgramCache]: Analyzing trace with hash -684794120, now seen corresponding path program 1 times [2024-11-12 12:40:56,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:56,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275737910] [2024-11-12 12:40:56,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:56,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:40:56,868 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:40:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:40:56,897 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:40:56,898 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:40:56,898 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-12 12:40:56,900 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-12 12:40:56,900 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-11-12 12:40:56,900 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-12 12:40:56,901 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-12 12:40:56,901 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-12 12:40:56,901 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-12 12:40:56,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 12:40:56,902 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-12 12:40:56,903 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:40:56,903 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-12 12:40:56,918 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 12:40:56,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 83 transitions, 182 flow [2024-11-12 12:40:56,939 INFO L124 PetriNetUnfolderBase]: 16/200 cut-off events. [2024-11-12 12:40:56,939 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 12:40:56,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 200 events. 16/200 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 443 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 121. Up to 8 conditions per place. [2024-11-12 12:40:56,940 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 83 transitions, 182 flow [2024-11-12 12:40:56,940 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 83 transitions, 182 flow [2024-11-12 12:40:56,941 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:40:56,942 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;@749305e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:40:56,942 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-12 12:40:56,943 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:40:56,943 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-12 12:40:56,943 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:40:56,943 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:56,943 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:40:56,943 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:40:56,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:56,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1432291435, now seen corresponding path program 1 times [2024-11-12 12:40:56,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:56,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923985406] [2024-11-12 12:40:56,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:56,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:56,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:40:56,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:56,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923985406] [2024-11-12 12:40:56,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923985406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:56,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:56,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 12:40:56,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865735149] [2024-11-12 12:40:56,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:56,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 12:40:56,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:56,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 12:40:56,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 12:40:56,959 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 83 [2024-11-12 12:40:56,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 83 transitions, 182 flow. Second operand has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:56,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:40:56,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 83 [2024-11-12 12:40:56,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:40:56,989 INFO L124 PetriNetUnfolderBase]: 7/212 cut-off events. [2024-11-12 12:40:56,990 INFO L125 PetriNetUnfolderBase]: For 29/38 co-relation queries the response was YES. [2024-11-12 12:40:56,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 212 events. 7/212 cut-off events. For 29/38 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 541 event pairs, 4 based on Foata normal form. 16/203 useless extension candidates. Maximal degree in co-relation 111. Up to 18 conditions per place. [2024-11-12 12:40:56,991 INFO L140 encePairwiseOnDemand]: 76/83 looper letters, 7 selfloop transitions, 0 changer transitions 0/74 dead transitions. [2024-11-12 12:40:56,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 74 transitions, 178 flow [2024-11-12 12:40:56,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 12:40:56,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-12 12:40:56,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 150 transitions. [2024-11-12 12:40:56,992 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9036144578313253 [2024-11-12 12:40:56,992 INFO L175 Difference]: Start difference. First operand has 82 places, 83 transitions, 182 flow. Second operand 2 states and 150 transitions. [2024-11-12 12:40:56,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 74 transitions, 178 flow [2024-11-12 12:40:56,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 74 transitions, 178 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:40:56,995 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 164 flow [2024-11-12 12:40:56,995 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=164, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2024-11-12 12:40:56,996 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, -4 predicate places. [2024-11-12 12:40:56,996 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 164 flow [2024-11-12 12:40:56,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:56,997 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:56,997 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:40:56,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 12:40:56,998 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:40:56,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:56,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1669664558, now seen corresponding path program 1 times [2024-11-12 12:40:56,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:56,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201994019] [2024-11-12 12:40:56,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:56,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:57,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:40:57,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:57,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201994019] [2024-11-12 12:40:57,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201994019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:57,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:57,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:40:57,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693878799] [2024-11-12 12:40:57,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:57,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:40:57,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:57,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:40:57,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:40:57,048 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 83 [2024-11-12 12:40:57,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:57,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:40:57,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 83 [2024-11-12 12:40:57,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:40:57,091 INFO L124 PetriNetUnfolderBase]: 28/388 cut-off events. [2024-11-12 12:40:57,091 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-11-12 12:40:57,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 388 events. 28/388 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1856 event pairs, 10 based on Foata normal form. 1/350 useless extension candidates. Maximal degree in co-relation 469. Up to 65 conditions per place. [2024-11-12 12:40:57,095 INFO L140 encePairwiseOnDemand]: 80/83 looper letters, 12 selfloop transitions, 2 changer transitions 3/76 dead transitions. [2024-11-12 12:40:57,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 76 transitions, 198 flow [2024-11-12 12:40:57,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:40:57,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:40:57,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2024-11-12 12:40:57,097 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8112449799196787 [2024-11-12 12:40:57,097 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 164 flow. Second operand 3 states and 202 transitions. [2024-11-12 12:40:57,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 76 transitions, 198 flow [2024-11-12 12:40:57,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 76 transitions, 198 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:40:57,099 INFO L231 Difference]: Finished difference. Result has 81 places, 72 transitions, 170 flow [2024-11-12 12:40:57,099 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=81, PETRI_TRANSITIONS=72} [2024-11-12 12:40:57,101 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, -1 predicate places. [2024-11-12 12:40:57,102 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 72 transitions, 170 flow [2024-11-12 12:40:57,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:57,102 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:57,102 INFO L206 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] [2024-11-12 12:40:57,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 12:40:57,102 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:40:57,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:57,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1393150298, now seen corresponding path program 1 times [2024-11-12 12:40:57,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:57,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143595332] [2024-11-12 12:40:57,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:57,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:57,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:40:57,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:57,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143595332] [2024-11-12 12:40:57,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143595332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:57,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:57,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:40:57,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008567753] [2024-11-12 12:40:57,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:57,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:40:57,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:57,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:40:57,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:40:57,381 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 83 [2024-11-12 12:40:57,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 72 transitions, 170 flow. Second operand has 6 states, 6 states have (on average 51.666666666666664) internal successors, (310), 6 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:57,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:40:57,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 83 [2024-11-12 12:40:57,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:40:57,454 INFO L124 PetriNetUnfolderBase]: 77/403 cut-off events. [2024-11-12 12:40:57,455 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-12 12:40:57,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 628 conditions, 403 events. 77/403 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2009 event pairs, 12 based on Foata normal form. 0/373 useless extension candidates. Maximal degree in co-relation 621. Up to 122 conditions per place. [2024-11-12 12:40:57,457 INFO L140 encePairwiseOnDemand]: 77/83 looper letters, 25 selfloop transitions, 6 changer transitions 2/79 dead transitions. [2024-11-12 12:40:57,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 79 transitions, 248 flow [2024-11-12 12:40:57,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:40:57,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:40:57,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 332 transitions. [2024-11-12 12:40:57,458 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-12 12:40:57,458 INFO L175 Difference]: Start difference. First operand has 81 places, 72 transitions, 170 flow. Second operand 6 states and 332 transitions. [2024-11-12 12:40:57,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 79 transitions, 248 flow [2024-11-12 12:40:57,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 79 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:40:57,460 INFO L231 Difference]: Finished difference. Result has 81 places, 69 transitions, 174 flow [2024-11-12 12:40:57,462 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=174, PETRI_PLACES=81, PETRI_TRANSITIONS=69} [2024-11-12 12:40:57,462 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, -1 predicate places. [2024-11-12 12:40:57,462 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 69 transitions, 174 flow [2024-11-12 12:40:57,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.666666666666664) internal successors, (310), 6 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:57,463 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:57,463 INFO L206 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] [2024-11-12 12:40:57,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:40:57,463 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:40:57,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:57,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1549695339, now seen corresponding path program 1 times [2024-11-12 12:40:57,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:57,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368130924] [2024-11-12 12:40:57,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:57,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:57,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:40:57,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:57,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368130924] [2024-11-12 12:40:57,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368130924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:57,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:57,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:40:57,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807570863] [2024-11-12 12:40:57,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:57,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:40:57,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:57,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:40:57,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:40:57,537 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 83 [2024-11-12 12:40:57,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 69 transitions, 174 flow. Second operand has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:57,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:40:57,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 83 [2024-11-12 12:40:57,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:40:57,587 INFO L124 PetriNetUnfolderBase]: 28/321 cut-off events. [2024-11-12 12:40:57,587 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-11-12 12:40:57,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 321 events. 28/321 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1287 event pairs, 3 based on Foata normal form. 2/295 useless extension candidates. Maximal degree in co-relation 448. Up to 43 conditions per place. [2024-11-12 12:40:57,589 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 17 selfloop transitions, 5 changer transitions 0/76 dead transitions. [2024-11-12 12:40:57,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 76 transitions, 232 flow [2024-11-12 12:40:57,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:40:57,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:40:57,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 383 transitions. [2024-11-12 12:40:57,590 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7690763052208835 [2024-11-12 12:40:57,590 INFO L175 Difference]: Start difference. First operand has 81 places, 69 transitions, 174 flow. Second operand 6 states and 383 transitions. [2024-11-12 12:40:57,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 76 transitions, 232 flow [2024-11-12 12:40:57,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 76 transitions, 220 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:40:57,592 INFO L231 Difference]: Finished difference. Result has 82 places, 71 transitions, 188 flow [2024-11-12 12:40:57,592 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=188, PETRI_PLACES=82, PETRI_TRANSITIONS=71} [2024-11-12 12:40:57,592 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2024-11-12 12:40:57,592 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 71 transitions, 188 flow [2024-11-12 12:40:57,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:57,593 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:57,593 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:40:57,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 12:40:57,593 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:40:57,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:57,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1088260105, now seen corresponding path program 1 times [2024-11-12 12:40:57,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:57,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945290719] [2024-11-12 12:40:57,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:57,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:57,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:57,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:40:57,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:57,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945290719] [2024-11-12 12:40:57,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945290719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:57,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:57,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:40:57,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187847237] [2024-11-12 12:40:57,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:57,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:40:57,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:57,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:40:57,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:40:57,642 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 83 [2024-11-12 12:40:57,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 71 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:57,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:40:57,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 83 [2024-11-12 12:40:57,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:40:57,687 INFO L124 PetriNetUnfolderBase]: 19/335 cut-off events. [2024-11-12 12:40:57,687 INFO L125 PetriNetUnfolderBase]: For 55/64 co-relation queries the response was YES. [2024-11-12 12:40:57,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 335 events. 19/335 cut-off events. For 55/64 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1467 event pairs, 8 based on Foata normal form. 2/299 useless extension candidates. Maximal degree in co-relation 423. Up to 37 conditions per place. [2024-11-12 12:40:57,689 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 11 selfloop transitions, 4 changer transitions 0/76 dead transitions. [2024-11-12 12:40:57,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 76 transitions, 234 flow [2024-11-12 12:40:57,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:40:57,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:40:57,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 211 transitions. [2024-11-12 12:40:57,691 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8473895582329317 [2024-11-12 12:40:57,691 INFO L175 Difference]: Start difference. First operand has 82 places, 71 transitions, 188 flow. Second operand 3 states and 211 transitions. [2024-11-12 12:40:57,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 76 transitions, 234 flow [2024-11-12 12:40:57,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 76 transitions, 228 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-12 12:40:57,694 INFO L231 Difference]: Finished difference. Result has 84 places, 74 transitions, 212 flow [2024-11-12 12:40:57,694 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=84, PETRI_TRANSITIONS=74} [2024-11-12 12:40:57,695 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 2 predicate places. [2024-11-12 12:40:57,695 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 74 transitions, 212 flow [2024-11-12 12:40:57,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:57,695 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:57,695 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:40:57,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 12:40:57,695 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:40:57,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:57,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1166339799, now seen corresponding path program 1 times [2024-11-12 12:40:57,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:57,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365840269] [2024-11-12 12:40:57,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:57,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:57,792 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-12 12:40:57,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:57,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365840269] [2024-11-12 12:40:57,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365840269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:57,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:57,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 12:40:57,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663360855] [2024-11-12 12:40:57,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:57,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 12:40:57,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:57,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 12:40:57,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-12 12:40:57,838 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 83 [2024-11-12 12:40:57,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 74 transitions, 212 flow. Second operand has 7 states, 7 states have (on average 62.0) internal successors, (434), 7 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:57,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:40:57,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 83 [2024-11-12 12:40:57,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:40:57,887 INFO L124 PetriNetUnfolderBase]: 17/142 cut-off events. [2024-11-12 12:40:57,887 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-11-12 12:40:57,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 142 events. 17/142 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 341 event pairs, 0 based on Foata normal form. 4/146 useless extension candidates. Maximal degree in co-relation 239. Up to 21 conditions per place. [2024-11-12 12:40:57,888 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 15 selfloop transitions, 7 changer transitions 0/53 dead transitions. [2024-11-12 12:40:57,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 53 transitions, 202 flow [2024-11-12 12:40:57,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 12:40:57,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 12:40:57,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 563 transitions. [2024-11-12 12:40:57,889 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7536813922356091 [2024-11-12 12:40:57,889 INFO L175 Difference]: Start difference. First operand has 84 places, 74 transitions, 212 flow. Second operand 9 states and 563 transitions. [2024-11-12 12:40:57,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 53 transitions, 202 flow [2024-11-12 12:40:57,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 53 transitions, 198 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:40:57,890 INFO L231 Difference]: Finished difference. Result has 63 places, 44 transitions, 132 flow [2024-11-12 12:40:57,890 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=132, PETRI_PLACES=63, PETRI_TRANSITIONS=44} [2024-11-12 12:40:57,891 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, -19 predicate places. [2024-11-12 12:40:57,891 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 44 transitions, 132 flow [2024-11-12 12:40:57,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 62.0) internal successors, (434), 7 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:57,891 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:57,891 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:40:57,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 12:40:57,892 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:40:57,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:57,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1277331358, now seen corresponding path program 1 times [2024-11-12 12:40:57,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:57,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193688357] [2024-11-12 12:40:57,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:57,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:40:57,916 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:40:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:40:57,933 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:40:57,934 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:40:57,934 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-12 12:40:57,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-11-12 12:40:57,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-11-12 12:40:57,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-11-12 12:40:57,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-11-12 12:40:57,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-11-12 12:40:57,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-11-12 12:40:57,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-11-12 12:40:57,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 12:40:57,935 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:40:57,935 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:40:57,935 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-12 12:40:57,945 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-12 12:40:57,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 209 flow [2024-11-12 12:40:57,964 INFO L124 PetriNetUnfolderBase]: 28/328 cut-off events. [2024-11-12 12:40:57,964 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-12 12:40:57,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 328 events. 28/328 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 872 event pairs, 1 based on Foata normal form. 0/276 useless extension candidates. Maximal degree in co-relation 208. Up to 16 conditions per place. [2024-11-12 12:40:57,965 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 91 transitions, 209 flow [2024-11-12 12:40:57,966 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 91 transitions, 209 flow [2024-11-12 12:40:57,967 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:40:57,968 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;@749305e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:40:57,968 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-12 12:40:57,969 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:40:57,970 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-12 12:40:57,970 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:40:57,970 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:57,970 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:40:57,970 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:40:57,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:57,970 INFO L85 PathProgramCache]: Analyzing trace with hash -150921205, now seen corresponding path program 1 times [2024-11-12 12:40:57,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:57,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516605917] [2024-11-12 12:40:57,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:57,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:57,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:40:57,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:57,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516605917] [2024-11-12 12:40:57,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516605917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:57,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:57,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 12:40:57,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571389263] [2024-11-12 12:40:57,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:57,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 12:40:57,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:57,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 12:40:57,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 12:40:57,983 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 91 [2024-11-12 12:40:57,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 91 transitions, 209 flow. Second operand has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:57,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:40:57,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 91 [2024-11-12 12:40:57,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:40:58,024 INFO L124 PetriNetUnfolderBase]: 36/492 cut-off events. [2024-11-12 12:40:58,025 INFO L125 PetriNetUnfolderBase]: For 127/182 co-relation queries the response was YES. [2024-11-12 12:40:58,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 615 conditions, 492 events. 36/492 cut-off events. For 127/182 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2098 event pairs, 27 based on Foata normal form. 39/471 useless extension candidates. Maximal degree in co-relation 303. Up to 68 conditions per place. [2024-11-12 12:40:58,029 INFO L140 encePairwiseOnDemand]: 83/91 looper letters, 10 selfloop transitions, 0 changer transitions 0/81 dead transitions. [2024-11-12 12:40:58,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 81 transitions, 209 flow [2024-11-12 12:40:58,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 12:40:58,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-12 12:40:58,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 162 transitions. [2024-11-12 12:40:58,030 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8901098901098901 [2024-11-12 12:40:58,030 INFO L175 Difference]: Start difference. First operand has 91 places, 91 transitions, 209 flow. Second operand 2 states and 162 transitions. [2024-11-12 12:40:58,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 81 transitions, 209 flow [2024-11-12 12:40:58,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 81 transitions, 209 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:40:58,032 INFO L231 Difference]: Finished difference. Result has 86 places, 81 transitions, 189 flow [2024-11-12 12:40:58,032 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=189, PETRI_PLACES=86, PETRI_TRANSITIONS=81} [2024-11-12 12:40:58,033 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, -5 predicate places. [2024-11-12 12:40:58,033 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 81 transitions, 189 flow [2024-11-12 12:40:58,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:58,033 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:58,033 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:40:58,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 12:40:58,034 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:40:58,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:58,036 INFO L85 PathProgramCache]: Analyzing trace with hash 96712397, now seen corresponding path program 1 times [2024-11-12 12:40:58,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:58,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679332157] [2024-11-12 12:40:58,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:58,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:58,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:40:58,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:58,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679332157] [2024-11-12 12:40:58,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679332157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:58,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:58,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:40:58,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403967381] [2024-11-12 12:40:58,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:58,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:40:58,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:58,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:40:58,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:40:58,075 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 91 [2024-11-12 12:40:58,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 81 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:58,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:40:58,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 91 [2024-11-12 12:40:58,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:40:58,167 INFO L124 PetriNetUnfolderBase]: 117/1024 cut-off events. [2024-11-12 12:40:58,167 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-11-12 12:40:58,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1297 conditions, 1024 events. 117/1024 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6565 event pairs, 104 based on Foata normal form. 1/925 useless extension candidates. Maximal degree in co-relation 1291. Up to 214 conditions per place. [2024-11-12 12:40:58,172 INFO L140 encePairwiseOnDemand]: 88/91 looper letters, 15 selfloop transitions, 2 changer transitions 3/83 dead transitions. [2024-11-12 12:40:58,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 83 transitions, 229 flow [2024-11-12 12:40:58,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:40:58,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:40:58,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 217 transitions. [2024-11-12 12:40:58,174 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7948717948717948 [2024-11-12 12:40:58,174 INFO L175 Difference]: Start difference. First operand has 86 places, 81 transitions, 189 flow. Second operand 3 states and 217 transitions. [2024-11-12 12:40:58,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 83 transitions, 229 flow [2024-11-12 12:40:58,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 83 transitions, 229 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:40:58,175 INFO L231 Difference]: Finished difference. Result has 89 places, 79 transitions, 195 flow [2024-11-12 12:40:58,175 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=89, PETRI_TRANSITIONS=79} [2024-11-12 12:40:58,177 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, -2 predicate places. [2024-11-12 12:40:58,177 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 79 transitions, 195 flow [2024-11-12 12:40:58,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:58,177 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:58,177 INFO L206 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] [2024-11-12 12:40:58,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-12 12:40:58,177 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:40:58,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:58,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1344078133, now seen corresponding path program 1 times [2024-11-12 12:40:58,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:58,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832709727] [2024-11-12 12:40:58,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:58,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:58,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:40:58,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:58,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832709727] [2024-11-12 12:40:58,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832709727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:58,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:58,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:40:58,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067969768] [2024-11-12 12:40:58,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:58,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:40:58,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:58,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:40:58,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:40:58,399 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 91 [2024-11-12 12:40:58,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 79 transitions, 195 flow. Second operand has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:58,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:40:58,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 91 [2024-11-12 12:40:58,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:40:58,517 INFO L124 PetriNetUnfolderBase]: 314/1091 cut-off events. [2024-11-12 12:40:58,517 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2024-11-12 12:40:58,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1772 conditions, 1091 events. 314/1091 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6431 event pairs, 196 based on Foata normal form. 0/1022 useless extension candidates. Maximal degree in co-relation 1764. Up to 419 conditions per place. [2024-11-12 12:40:58,522 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 32 selfloop transitions, 6 changer transitions 2/90 dead transitions. [2024-11-12 12:40:58,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 90 transitions, 295 flow [2024-11-12 12:40:58,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:40:58,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:40:58,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 363 transitions. [2024-11-12 12:40:58,523 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6648351648351648 [2024-11-12 12:40:58,523 INFO L175 Difference]: Start difference. First operand has 89 places, 79 transitions, 195 flow. Second operand 6 states and 363 transitions. [2024-11-12 12:40:58,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 90 transitions, 295 flow [2024-11-12 12:40:58,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 90 transitions, 293 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:40:58,525 INFO L231 Difference]: Finished difference. Result has 89 places, 76 transitions, 199 flow [2024-11-12 12:40:58,525 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=199, PETRI_PLACES=89, PETRI_TRANSITIONS=76} [2024-11-12 12:40:58,525 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, -2 predicate places. [2024-11-12 12:40:58,525 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 76 transitions, 199 flow [2024-11-12 12:40:58,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:58,526 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:58,526 INFO L206 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] [2024-11-12 12:40:58,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-12 12:40:58,526 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:40:58,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:58,527 INFO L85 PathProgramCache]: Analyzing trace with hash 850910762, now seen corresponding path program 1 times [2024-11-12 12:40:58,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:58,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497238474] [2024-11-12 12:40:58,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:58,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:58,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:40:58,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:58,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497238474] [2024-11-12 12:40:58,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497238474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:58,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:58,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:40:58,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786602727] [2024-11-12 12:40:58,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:58,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:40:58,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:58,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:40:58,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:40:58,612 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 91 [2024-11-12 12:40:58,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 76 transitions, 199 flow. Second operand has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:58,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:40:58,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 91 [2024-11-12 12:40:58,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:40:58,687 INFO L124 PetriNetUnfolderBase]: 120/883 cut-off events. [2024-11-12 12:40:58,688 INFO L125 PetriNetUnfolderBase]: For 154/154 co-relation queries the response was YES. [2024-11-12 12:40:58,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1253 conditions, 883 events. 120/883 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5441 event pairs, 65 based on Foata normal form. 2/799 useless extension candidates. Maximal degree in co-relation 1245. Up to 193 conditions per place. [2024-11-12 12:40:58,691 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 22 selfloop transitions, 5 changer transitions 0/85 dead transitions. [2024-11-12 12:40:58,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 85 transitions, 275 flow [2024-11-12 12:40:58,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:40:58,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:40:58,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 412 transitions. [2024-11-12 12:40:58,692 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7545787545787546 [2024-11-12 12:40:58,692 INFO L175 Difference]: Start difference. First operand has 89 places, 76 transitions, 199 flow. Second operand 6 states and 412 transitions. [2024-11-12 12:40:58,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 85 transitions, 275 flow [2024-11-12 12:40:58,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 85 transitions, 261 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:40:58,694 INFO L231 Difference]: Finished difference. Result has 90 places, 79 transitions, 219 flow [2024-11-12 12:40:58,694 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=219, PETRI_PLACES=90, PETRI_TRANSITIONS=79} [2024-11-12 12:40:58,694 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, -1 predicate places. [2024-11-12 12:40:58,694 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 79 transitions, 219 flow [2024-11-12 12:40:58,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:58,695 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:58,695 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:40:58,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-12 12:40:58,695 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:40:58,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:58,696 INFO L85 PathProgramCache]: Analyzing trace with hash 510823334, now seen corresponding path program 1 times [2024-11-12 12:40:58,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:58,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898600710] [2024-11-12 12:40:58,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:58,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:58,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:40:58,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:58,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898600710] [2024-11-12 12:40:58,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898600710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:58,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:58,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:40:58,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481185027] [2024-11-12 12:40:58,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:58,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:40:58,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:58,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:40:58,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:40:58,721 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 91 [2024-11-12 12:40:58,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 79 transitions, 219 flow. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:58,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:40:58,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 91 [2024-11-12 12:40:58,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:40:58,793 INFO L124 PetriNetUnfolderBase]: 119/1006 cut-off events. [2024-11-12 12:40:58,794 INFO L125 PetriNetUnfolderBase]: For 230/286 co-relation queries the response was YES. [2024-11-12 12:40:58,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1342 conditions, 1006 events. 119/1006 cut-off events. For 230/286 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 6887 event pairs, 42 based on Foata normal form. 5/887 useless extension candidates. Maximal degree in co-relation 1331. Up to 162 conditions per place. [2024-11-12 12:40:58,798 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 15 selfloop transitions, 5 changer transitions 0/86 dead transitions. [2024-11-12 12:40:58,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 86 transitions, 282 flow [2024-11-12 12:40:58,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:40:58,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:40:58,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2024-11-12 12:40:58,799 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8351648351648352 [2024-11-12 12:40:58,799 INFO L175 Difference]: Start difference. First operand has 90 places, 79 transitions, 219 flow. Second operand 3 states and 228 transitions. [2024-11-12 12:40:58,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 86 transitions, 282 flow [2024-11-12 12:40:58,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 86 transitions, 276 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-12 12:40:58,801 INFO L231 Difference]: Finished difference. Result has 92 places, 83 transitions, 251 flow [2024-11-12 12:40:58,801 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=251, PETRI_PLACES=92, PETRI_TRANSITIONS=83} [2024-11-12 12:40:58,801 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 1 predicate places. [2024-11-12 12:40:58,801 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 83 transitions, 251 flow [2024-11-12 12:40:58,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:58,802 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:58,802 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:40:58,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-12 12:40:58,802 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:40:58,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:58,803 INFO L85 PathProgramCache]: Analyzing trace with hash 871278153, now seen corresponding path program 1 times [2024-11-12 12:40:58,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:58,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285769690] [2024-11-12 12:40:58,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:58,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:58,887 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-12 12:40:58,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:58,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285769690] [2024-11-12 12:40:58,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285769690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:58,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:58,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 12:40:58,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473639599] [2024-11-12 12:40:58,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:58,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 12:40:58,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:58,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 12:40:58,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-12 12:40:58,938 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 91 [2024-11-12 12:40:58,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 83 transitions, 251 flow. Second operand has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:58,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:40:58,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 91 [2024-11-12 12:40:58,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:40:59,064 INFO L124 PetriNetUnfolderBase]: 175/1185 cut-off events. [2024-11-12 12:40:59,065 INFO L125 PetriNetUnfolderBase]: For 478/501 co-relation queries the response was YES. [2024-11-12 12:40:59,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1900 conditions, 1185 events. 175/1185 cut-off events. For 478/501 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 7808 event pairs, 26 based on Foata normal form. 4/1090 useless extension candidates. Maximal degree in co-relation 1888. Up to 218 conditions per place. [2024-11-12 12:40:59,070 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 30 selfloop transitions, 8 changer transitions 0/97 dead transitions. [2024-11-12 12:40:59,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 97 transitions, 383 flow [2024-11-12 12:40:59,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 12:40:59,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 12:40:59,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 612 transitions. [2024-11-12 12:40:59,072 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7472527472527473 [2024-11-12 12:40:59,072 INFO L175 Difference]: Start difference. First operand has 92 places, 83 transitions, 251 flow. Second operand 9 states and 612 transitions. [2024-11-12 12:40:59,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 97 transitions, 383 flow [2024-11-12 12:40:59,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 97 transitions, 373 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:40:59,074 INFO L231 Difference]: Finished difference. Result has 101 places, 85 transitions, 277 flow [2024-11-12 12:40:59,074 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=277, PETRI_PLACES=101, PETRI_TRANSITIONS=85} [2024-11-12 12:40:59,075 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, 10 predicate places. [2024-11-12 12:40:59,075 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 85 transitions, 277 flow [2024-11-12 12:40:59,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:59,075 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:59,075 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-12 12:40:59,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-12 12:40:59,075 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:40:59,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:59,076 INFO L85 PathProgramCache]: Analyzing trace with hash 968062158, now seen corresponding path program 1 times [2024-11-12 12:40:59,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:59,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727290531] [2024-11-12 12:40:59,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:59,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:59,179 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-12 12:40:59,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:59,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727290531] [2024-11-12 12:40:59,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727290531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:59,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:59,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 12:40:59,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736354175] [2024-11-12 12:40:59,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:59,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 12:40:59,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:59,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 12:40:59,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-12 12:40:59,234 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 91 [2024-11-12 12:40:59,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 85 transitions, 277 flow. Second operand has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:59,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:40:59,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 91 [2024-11-12 12:40:59,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:40:59,324 INFO L124 PetriNetUnfolderBase]: 61/318 cut-off events. [2024-11-12 12:40:59,324 INFO L125 PetriNetUnfolderBase]: For 215/215 co-relation queries the response was YES. [2024-11-12 12:40:59,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 661 conditions, 318 events. 61/318 cut-off events. For 215/215 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1257 event pairs, 0 based on Foata normal form. 8/326 useless extension candidates. Maximal degree in co-relation 646. Up to 69 conditions per place. [2024-11-12 12:40:59,326 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 26 selfloop transitions, 10 changer transitions 0/71 dead transitions. [2024-11-12 12:40:59,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 71 transitions, 328 flow [2024-11-12 12:40:59,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 12:40:59,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-12 12:40:59,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 805 transitions. [2024-11-12 12:40:59,328 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7371794871794872 [2024-11-12 12:40:59,328 INFO L175 Difference]: Start difference. First operand has 101 places, 85 transitions, 277 flow. Second operand 12 states and 805 transitions. [2024-11-12 12:40:59,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 71 transitions, 328 flow [2024-11-12 12:40:59,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 71 transitions, 302 flow, removed 5 selfloop flow, removed 8 redundant places. [2024-11-12 12:40:59,331 INFO L231 Difference]: Finished difference. Result has 78 places, 53 transitions, 178 flow [2024-11-12 12:40:59,331 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=178, PETRI_PLACES=78, PETRI_TRANSITIONS=53} [2024-11-12 12:40:59,331 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, -13 predicate places. [2024-11-12 12:40:59,331 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 53 transitions, 178 flow [2024-11-12 12:40:59,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:59,332 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:59,332 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:40:59,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-12 12:40:59,332 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:40:59,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:59,333 INFO L85 PathProgramCache]: Analyzing trace with hash 274865753, now seen corresponding path program 1 times [2024-11-12 12:40:59,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:59,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432444822] [2024-11-12 12:40:59,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:59,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:40:59,351 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:40:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:40:59,369 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:40:59,369 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:40:59,370 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-12 12:40:59,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-12 12:40:59,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-12 12:40:59,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-12 12:40:59,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-12 12:40:59,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-12 12:40:59,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-12 12:40:59,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-12 12:40:59,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-12 12:40:59,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-12 12:40:59,372 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:40:59,372 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:40:59,373 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-12 12:40:59,388 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-12 12:40:59,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 99 transitions, 238 flow [2024-11-12 12:40:59,428 INFO L124 PetriNetUnfolderBase]: 52/552 cut-off events. [2024-11-12 12:40:59,428 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-12 12:40:59,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 552 events. 52/552 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1935 event pairs, 6 based on Foata normal form. 0/469 useless extension candidates. Maximal degree in co-relation 348. Up to 32 conditions per place. [2024-11-12 12:40:59,429 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 99 transitions, 238 flow [2024-11-12 12:40:59,431 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 99 transitions, 238 flow [2024-11-12 12:40:59,433 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:40:59,433 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;@749305e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:40:59,433 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-12 12:40:59,434 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:40:59,434 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-12 12:40:59,435 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:40:59,435 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:59,435 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:40:59,435 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-12 12:40:59,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:59,436 INFO L85 PathProgramCache]: Analyzing trace with hash 958529195, now seen corresponding path program 1 times [2024-11-12 12:40:59,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:59,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908795121] [2024-11-12 12:40:59,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:59,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:59,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:40:59,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:59,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908795121] [2024-11-12 12:40:59,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908795121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:59,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:59,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 12:40:59,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430885974] [2024-11-12 12:40:59,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:59,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 12:40:59,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:59,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 12:40:59,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 12:40:59,450 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2024-11-12 12:40:59,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 99 transitions, 238 flow. Second operand has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:59,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:40:59,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2024-11-12 12:40:59,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:40:59,543 INFO L124 PetriNetUnfolderBase]: 157/1308 cut-off events. [2024-11-12 12:40:59,543 INFO L125 PetriNetUnfolderBase]: For 478/763 co-relation queries the response was YES. [2024-11-12 12:40:59,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1735 conditions, 1308 events. 157/1308 cut-off events. For 478/763 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 8586 event pairs, 128 based on Foata normal form. 105/1248 useless extension candidates. Maximal degree in co-relation 947. Up to 250 conditions per place. [2024-11-12 12:40:59,549 INFO L140 encePairwiseOnDemand]: 90/99 looper letters, 13 selfloop transitions, 0 changer transitions 0/88 dead transitions. [2024-11-12 12:40:59,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 88 transitions, 242 flow [2024-11-12 12:40:59,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 12:40:59,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-12 12:40:59,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 174 transitions. [2024-11-12 12:40:59,550 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8787878787878788 [2024-11-12 12:40:59,550 INFO L175 Difference]: Start difference. First operand has 100 places, 99 transitions, 238 flow. Second operand 2 states and 174 transitions. [2024-11-12 12:40:59,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 88 transitions, 242 flow [2024-11-12 12:40:59,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 88 transitions, 242 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:40:59,552 INFO L231 Difference]: Finished difference. Result has 94 places, 88 transitions, 216 flow [2024-11-12 12:40:59,552 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=216, PETRI_PLACES=94, PETRI_TRANSITIONS=88} [2024-11-12 12:40:59,552 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, -6 predicate places. [2024-11-12 12:40:59,553 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 88 transitions, 216 flow [2024-11-12 12:40:59,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:59,553 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:59,553 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:40:59,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-12 12:40:59,553 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-12 12:40:59,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:59,554 INFO L85 PathProgramCache]: Analyzing trace with hash 36082640, now seen corresponding path program 1 times [2024-11-12 12:40:59,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:59,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023382459] [2024-11-12 12:40:59,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:59,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:59,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:40:59,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:59,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023382459] [2024-11-12 12:40:59,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023382459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:59,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:59,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:40:59,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63012265] [2024-11-12 12:40:59,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:59,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:40:59,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:59,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:40:59,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:40:59,585 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 99 [2024-11-12 12:40:59,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 88 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:59,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:40:59,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 99 [2024-11-12 12:40:59,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:40:59,777 INFO L124 PetriNetUnfolderBase]: 422/2882 cut-off events. [2024-11-12 12:40:59,777 INFO L125 PetriNetUnfolderBase]: For 531/531 co-relation queries the response was YES. [2024-11-12 12:40:59,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3738 conditions, 2882 events. 422/2882 cut-off events. For 531/531 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 23758 event pairs, 278 based on Foata normal form. 1/2616 useless extension candidates. Maximal degree in co-relation 3731. Up to 675 conditions per place. [2024-11-12 12:40:59,788 INFO L140 encePairwiseOnDemand]: 96/99 looper letters, 18 selfloop transitions, 2 changer transitions 3/90 dead transitions. [2024-11-12 12:40:59,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 90 transitions, 262 flow [2024-11-12 12:40:59,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:40:59,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:40:59,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2024-11-12 12:40:59,791 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7811447811447811 [2024-11-12 12:40:59,791 INFO L175 Difference]: Start difference. First operand has 94 places, 88 transitions, 216 flow. Second operand 3 states and 232 transitions. [2024-11-12 12:40:59,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 90 transitions, 262 flow [2024-11-12 12:40:59,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 90 transitions, 262 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:40:59,792 INFO L231 Difference]: Finished difference. Result has 97 places, 86 transitions, 222 flow [2024-11-12 12:40:59,793 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=97, PETRI_TRANSITIONS=86} [2024-11-12 12:40:59,793 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, -3 predicate places. [2024-11-12 12:40:59,793 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 86 transitions, 222 flow [2024-11-12 12:40:59,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:40:59,793 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:40:59,793 INFO L206 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] [2024-11-12 12:40:59,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-12 12:40:59,794 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-12 12:40:59,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:40:59,794 INFO L85 PathProgramCache]: Analyzing trace with hash 157953304, now seen corresponding path program 1 times [2024-11-12 12:40:59,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:40:59,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894569140] [2024-11-12 12:40:59,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:40:59,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:40:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:40:59,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:40:59,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:40:59,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894569140] [2024-11-12 12:40:59,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894569140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:40:59,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:40:59,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:40:59,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457404240] [2024-11-12 12:40:59,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:40:59,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:40:59,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:40:59,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:40:59,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:41:00,004 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 99 [2024-11-12 12:41:00,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 86 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:00,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:00,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 99 [2024-11-12 12:41:00,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:00,241 INFO L124 PetriNetUnfolderBase]: 1099/3285 cut-off events. [2024-11-12 12:41:00,241 INFO L125 PetriNetUnfolderBase]: For 513/513 co-relation queries the response was YES. [2024-11-12 12:41:00,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5364 conditions, 3285 events. 1099/3285 cut-off events. For 513/513 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 24274 event pairs, 150 based on Foata normal form. 0/3063 useless extension candidates. Maximal degree in co-relation 5355. Up to 1372 conditions per place. [2024-11-12 12:41:00,255 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 39 selfloop transitions, 6 changer transitions 2/101 dead transitions. [2024-11-12 12:41:00,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 101 transitions, 344 flow [2024-11-12 12:41:00,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:41:00,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:41:00,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 394 transitions. [2024-11-12 12:41:00,257 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6632996632996633 [2024-11-12 12:41:00,257 INFO L175 Difference]: Start difference. First operand has 97 places, 86 transitions, 222 flow. Second operand 6 states and 394 transitions. [2024-11-12 12:41:00,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 101 transitions, 344 flow [2024-11-12 12:41:00,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 101 transitions, 342 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:41:00,258 INFO L231 Difference]: Finished difference. Result has 97 places, 83 transitions, 226 flow [2024-11-12 12:41:00,259 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=226, PETRI_PLACES=97, PETRI_TRANSITIONS=83} [2024-11-12 12:41:00,259 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, -3 predicate places. [2024-11-12 12:41:00,259 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 83 transitions, 226 flow [2024-11-12 12:41:00,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:00,259 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:00,259 INFO L206 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] [2024-11-12 12:41:00,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-12 12:41:00,259 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-12 12:41:00,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:00,260 INFO L85 PathProgramCache]: Analyzing trace with hash 89007559, now seen corresponding path program 1 times [2024-11-12 12:41:00,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:00,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72326065] [2024-11-12 12:41:00,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:00,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:00,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:00,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:00,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72326065] [2024-11-12 12:41:00,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72326065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:00,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:00,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:41:00,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729379098] [2024-11-12 12:41:00,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:00,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:41:00,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:00,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:41:00,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:41:00,331 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 99 [2024-11-12 12:41:00,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 83 transitions, 226 flow. Second operand has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:00,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:00,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 99 [2024-11-12 12:41:00,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:00,515 INFO L124 PetriNetUnfolderBase]: 408/2431 cut-off events. [2024-11-12 12:41:00,515 INFO L125 PetriNetUnfolderBase]: For 561/561 co-relation queries the response was YES. [2024-11-12 12:41:00,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3465 conditions, 2431 events. 408/2431 cut-off events. For 561/561 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 18993 event pairs, 167 based on Foata normal form. 2/2189 useless extension candidates. Maximal degree in co-relation 3456. Up to 615 conditions per place. [2024-11-12 12:41:00,526 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 25 selfloop transitions, 5 changer transitions 0/92 dead transitions. [2024-11-12 12:41:00,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 92 transitions, 308 flow [2024-11-12 12:41:00,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:41:00,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:41:00,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 439 transitions. [2024-11-12 12:41:00,528 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7390572390572391 [2024-11-12 12:41:00,528 INFO L175 Difference]: Start difference. First operand has 97 places, 83 transitions, 226 flow. Second operand 6 states and 439 transitions. [2024-11-12 12:41:00,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 92 transitions, 308 flow [2024-11-12 12:41:00,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 92 transitions, 294 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:41:00,530 INFO L231 Difference]: Finished difference. Result has 98 places, 86 transitions, 246 flow [2024-11-12 12:41:00,530 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=246, PETRI_PLACES=98, PETRI_TRANSITIONS=86} [2024-11-12 12:41:00,531 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, -2 predicate places. [2024-11-12 12:41:00,531 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 86 transitions, 246 flow [2024-11-12 12:41:00,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:00,531 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:00,531 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:00,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-12 12:41:00,531 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-12 12:41:00,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:00,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1509468253, now seen corresponding path program 1 times [2024-11-12 12:41:00,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:00,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622529517] [2024-11-12 12:41:00,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:00,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:00,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:00,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:00,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622529517] [2024-11-12 12:41:00,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622529517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:00,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:00,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:41:00,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079056311] [2024-11-12 12:41:00,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:00,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:41:00,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:00,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:41:00,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:41:00,558 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 99 [2024-11-12 12:41:00,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 86 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:00,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:00,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 99 [2024-11-12 12:41:00,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:00,772 INFO L124 PetriNetUnfolderBase]: 488/2976 cut-off events. [2024-11-12 12:41:00,773 INFO L125 PetriNetUnfolderBase]: For 886/1127 co-relation queries the response was YES. [2024-11-12 12:41:00,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4079 conditions, 2976 events. 488/2976 cut-off events. For 886/1127 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 25696 event pairs, 185 based on Foata normal form. 9/2617 useless extension candidates. Maximal degree in co-relation 4067. Up to 580 conditions per place. [2024-11-12 12:41:00,782 INFO L140 encePairwiseOnDemand]: 92/99 looper letters, 19 selfloop transitions, 6 changer transitions 0/95 dead transitions. [2024-11-12 12:41:00,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 95 transitions, 326 flow [2024-11-12 12:41:00,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:41:00,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:41:00,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 245 transitions. [2024-11-12 12:41:00,783 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8249158249158249 [2024-11-12 12:41:00,784 INFO L175 Difference]: Start difference. First operand has 98 places, 86 transitions, 246 flow. Second operand 3 states and 245 transitions. [2024-11-12 12:41:00,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 95 transitions, 326 flow [2024-11-12 12:41:00,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 95 transitions, 320 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-12 12:41:00,785 INFO L231 Difference]: Finished difference. Result has 100 places, 91 transitions, 286 flow [2024-11-12 12:41:00,786 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=100, PETRI_TRANSITIONS=91} [2024-11-12 12:41:00,786 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 0 predicate places. [2024-11-12 12:41:00,786 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 91 transitions, 286 flow [2024-11-12 12:41:00,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:00,786 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:00,786 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:00,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-12 12:41:00,787 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-12 12:41:00,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:00,787 INFO L85 PathProgramCache]: Analyzing trace with hash 263514299, now seen corresponding path program 1 times [2024-11-12 12:41:00,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:00,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352502838] [2024-11-12 12:41:00,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:00,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:00,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:00,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:00,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352502838] [2024-11-12 12:41:00,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352502838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:00,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:00,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 12:41:00,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516270111] [2024-11-12 12:41:00,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:00,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 12:41:00,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:00,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 12:41:00,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-12 12:41:00,888 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 99 [2024-11-12 12:41:00,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 91 transitions, 286 flow. Second operand has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:00,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:00,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 99 [2024-11-12 12:41:00,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:01,244 INFO L124 PetriNetUnfolderBase]: 704/3458 cut-off events. [2024-11-12 12:41:01,245 INFO L125 PetriNetUnfolderBase]: For 1807/1906 co-relation queries the response was YES. [2024-11-12 12:41:01,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5888 conditions, 3458 events. 704/3458 cut-off events. For 1807/1906 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 30077 event pairs, 123 based on Foata normal form. 4/3147 useless extension candidates. Maximal degree in co-relation 5875. Up to 942 conditions per place. [2024-11-12 12:41:01,265 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 36 selfloop transitions, 8 changer transitions 0/107 dead transitions. [2024-11-12 12:41:01,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 107 transitions, 440 flow [2024-11-12 12:41:01,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 12:41:01,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 12:41:01,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 653 transitions. [2024-11-12 12:41:01,267 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7328843995510662 [2024-11-12 12:41:01,267 INFO L175 Difference]: Start difference. First operand has 100 places, 91 transitions, 286 flow. Second operand 9 states and 653 transitions. [2024-11-12 12:41:01,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 107 transitions, 440 flow [2024-11-12 12:41:01,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 107 transitions, 428 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:41:01,271 INFO L231 Difference]: Finished difference. Result has 109 places, 94 transitions, 318 flow [2024-11-12 12:41:01,271 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=318, PETRI_PLACES=109, PETRI_TRANSITIONS=94} [2024-11-12 12:41:01,272 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 9 predicate places. [2024-11-12 12:41:01,272 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 94 transitions, 318 flow [2024-11-12 12:41:01,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:01,272 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:01,272 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-12 12:41:01,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-12 12:41:01,272 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-12 12:41:01,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:01,273 INFO L85 PathProgramCache]: Analyzing trace with hash 998102950, now seen corresponding path program 1 times [2024-11-12 12:41:01,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:01,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359283942] [2024-11-12 12:41:01,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:01,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:01,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:01,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:01,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359283942] [2024-11-12 12:41:01,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359283942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:01,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:01,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 12:41:01,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968819591] [2024-11-12 12:41:01,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:01,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 12:41:01,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:01,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 12:41:01,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-12 12:41:01,431 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 99 [2024-11-12 12:41:01,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 94 transitions, 318 flow. Second operand has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:01,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:01,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 99 [2024-11-12 12:41:01,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:01,731 INFO L124 PetriNetUnfolderBase]: 616/3343 cut-off events. [2024-11-12 12:41:01,732 INFO L125 PetriNetUnfolderBase]: For 1623/1699 co-relation queries the response was YES. [2024-11-12 12:41:01,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5453 conditions, 3343 events. 616/3343 cut-off events. For 1623/1699 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 28219 event pairs, 119 based on Foata normal form. 8/3036 useless extension candidates. Maximal degree in co-relation 5437. Up to 711 conditions per place. [2024-11-12 12:41:01,745 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 44 selfloop transitions, 11 changer transitions 0/118 dead transitions. [2024-11-12 12:41:01,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 118 transitions, 528 flow [2024-11-12 12:41:01,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 12:41:01,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-12 12:41:01,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 868 transitions. [2024-11-12 12:41:01,747 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7306397306397306 [2024-11-12 12:41:01,747 INFO L175 Difference]: Start difference. First operand has 109 places, 94 transitions, 318 flow. Second operand 12 states and 868 transitions. [2024-11-12 12:41:01,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 118 transitions, 528 flow [2024-11-12 12:41:01,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 118 transitions, 510 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-12 12:41:01,750 INFO L231 Difference]: Finished difference. Result has 118 places, 96 transitions, 346 flow [2024-11-12 12:41:01,750 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=346, PETRI_PLACES=118, PETRI_TRANSITIONS=96} [2024-11-12 12:41:01,750 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 18 predicate places. [2024-11-12 12:41:01,750 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 96 transitions, 346 flow [2024-11-12 12:41:01,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:01,751 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:01,751 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:01,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-12 12:41:01,751 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-12 12:41:01,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:01,752 INFO L85 PathProgramCache]: Analyzing trace with hash 928875026, now seen corresponding path program 1 times [2024-11-12 12:41:01,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:01,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748959259] [2024-11-12 12:41:01,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:01,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:01,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:01,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:01,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748959259] [2024-11-12 12:41:01,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748959259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:01,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:01,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-12 12:41:01,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632429516] [2024-11-12 12:41:01,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:01,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 12:41:01,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:01,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 12:41:01,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-12 12:41:01,931 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 99 [2024-11-12 12:41:01,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 96 transitions, 346 flow. Second operand has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:01,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:01,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 99 [2024-11-12 12:41:01,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:02,068 INFO L124 PetriNetUnfolderBase]: 181/716 cut-off events. [2024-11-12 12:41:02,068 INFO L125 PetriNetUnfolderBase]: For 820/820 co-relation queries the response was YES. [2024-11-12 12:41:02,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1611 conditions, 716 events. 181/716 cut-off events. For 820/820 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3722 event pairs, 0 based on Foata normal form. 16/732 useless extension candidates. Maximal degree in co-relation 1592. Up to 197 conditions per place. [2024-11-12 12:41:02,072 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 40 selfloop transitions, 13 changer transitions 0/92 dead transitions. [2024-11-12 12:41:02,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 92 transitions, 468 flow [2024-11-12 12:41:02,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-12 12:41:02,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-12 12:41:02,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1074 transitions. [2024-11-12 12:41:02,075 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7232323232323232 [2024-11-12 12:41:02,075 INFO L175 Difference]: Start difference. First operand has 118 places, 96 transitions, 346 flow. Second operand 15 states and 1074 transitions. [2024-11-12 12:41:02,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 92 transitions, 468 flow [2024-11-12 12:41:02,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 92 transitions, 424 flow, removed 10 selfloop flow, removed 12 redundant places. [2024-11-12 12:41:02,077 INFO L231 Difference]: Finished difference. Result has 94 places, 62 transitions, 224 flow [2024-11-12 12:41:02,077 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=224, PETRI_PLACES=94, PETRI_TRANSITIONS=62} [2024-11-12 12:41:02,078 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, -6 predicate places. [2024-11-12 12:41:02,078 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 62 transitions, 224 flow [2024-11-12 12:41:02,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:02,078 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:02,079 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:02,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-12 12:41:02,079 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-12 12:41:02,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:02,079 INFO L85 PathProgramCache]: Analyzing trace with hash 248426653, now seen corresponding path program 1 times [2024-11-12 12:41:02,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:02,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176980099] [2024-11-12 12:41:02,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:02,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:41:02,097 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:41:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:41:02,115 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:41:02,115 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:41:02,115 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-12 12:41:02,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-11-12 12:41:02,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-11-12 12:41:02,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-11-12 12:41:02,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-11-12 12:41:02,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-11-12 12:41:02,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2024-11-12 12:41:02,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-11-12 12:41:02,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-11-12 12:41:02,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-11-12 12:41:02,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-12 12:41:02,117 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:02,118 WARN L244 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:41:02,118 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-12 12:41:02,131 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-11-12 12:41:02,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 107 transitions, 269 flow [2024-11-12 12:41:02,182 INFO L124 PetriNetUnfolderBase]: 104/972 cut-off events. [2024-11-12 12:41:02,182 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-11-12 12:41:02,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1078 conditions, 972 events. 104/972 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4453 event pairs, 23 based on Foata normal form. 0/834 useless extension candidates. Maximal degree in co-relation 597. Up to 80 conditions per place. [2024-11-12 12:41:02,184 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 107 transitions, 269 flow [2024-11-12 12:41:02,186 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 107 transitions, 269 flow [2024-11-12 12:41:02,187 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:41:02,187 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;@749305e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:41:02,187 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-12 12:41:02,188 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:41:02,188 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-12 12:41:02,189 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:41:02,189 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:02,189 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:02,189 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-12 12:41:02,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:02,189 INFO L85 PathProgramCache]: Analyzing trace with hash 465675339, now seen corresponding path program 1 times [2024-11-12 12:41:02,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:02,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736182291] [2024-11-12 12:41:02,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:02,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:02,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:02,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:02,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736182291] [2024-11-12 12:41:02,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736182291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:02,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:02,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 12:41:02,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77132418] [2024-11-12 12:41:02,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:02,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 12:41:02,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:02,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 12:41:02,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 12:41:02,198 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 107 [2024-11-12 12:41:02,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 107 transitions, 269 flow. Second operand has 2 states, 2 states have (on average 80.5) internal successors, (161), 2 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:02,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:02,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 107 [2024-11-12 12:41:02,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:02,437 INFO L124 PetriNetUnfolderBase]: 622/3788 cut-off events. [2024-11-12 12:41:02,438 INFO L125 PetriNetUnfolderBase]: For 1620/2926 co-relation queries the response was YES. [2024-11-12 12:41:02,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5251 conditions, 3788 events. 622/3788 cut-off events. For 1620/2926 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 33590 event pairs, 527 based on Foata normal form. 306/3603 useless extension candidates. Maximal degree in co-relation 3055. Up to 892 conditions per place. [2024-11-12 12:41:02,458 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 16 selfloop transitions, 0 changer transitions 0/95 dead transitions. [2024-11-12 12:41:02,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 95 transitions, 277 flow [2024-11-12 12:41:02,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 12:41:02,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-12 12:41:02,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 186 transitions. [2024-11-12 12:41:02,460 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8691588785046729 [2024-11-12 12:41:02,460 INFO L175 Difference]: Start difference. First operand has 109 places, 107 transitions, 269 flow. Second operand 2 states and 186 transitions. [2024-11-12 12:41:02,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 95 transitions, 277 flow [2024-11-12 12:41:02,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 95 transitions, 277 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:41:02,462 INFO L231 Difference]: Finished difference. Result has 102 places, 95 transitions, 245 flow [2024-11-12 12:41:02,462 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=245, PETRI_PLACES=102, PETRI_TRANSITIONS=95} [2024-11-12 12:41:02,462 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -7 predicate places. [2024-11-12 12:41:02,462 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 95 transitions, 245 flow [2024-11-12 12:41:02,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.5) internal successors, (161), 2 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:02,462 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:02,462 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:02,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-12 12:41:02,462 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-12 12:41:02,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:02,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1851553829, now seen corresponding path program 1 times [2024-11-12 12:41:02,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:02,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932048632] [2024-11-12 12:41:02,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:02,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:02,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:02,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:02,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932048632] [2024-11-12 12:41:02,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932048632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:02,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:02,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:41:02,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011608828] [2024-11-12 12:41:02,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:02,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:41:02,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:02,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:41:02,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:41:02,489 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2024-11-12 12:41:02,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 95 transitions, 245 flow. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:02,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:02,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2024-11-12 12:41:02,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:03,096 INFO L124 PetriNetUnfolderBase]: 1439/8085 cut-off events. [2024-11-12 12:41:03,097 INFO L125 PetriNetUnfolderBase]: For 1886/1886 co-relation queries the response was YES. [2024-11-12 12:41:03,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10772 conditions, 8085 events. 1439/8085 cut-off events. For 1886/1886 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 81608 event pairs, 1050 based on Foata normal form. 1/7383 useless extension candidates. Maximal degree in co-relation 10764. Up to 2112 conditions per place. [2024-11-12 12:41:03,125 INFO L140 encePairwiseOnDemand]: 104/107 looper letters, 21 selfloop transitions, 2 changer transitions 3/97 dead transitions. [2024-11-12 12:41:03,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 97 transitions, 297 flow [2024-11-12 12:41:03,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:41:03,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:41:03,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions. [2024-11-12 12:41:03,126 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7694704049844237 [2024-11-12 12:41:03,126 INFO L175 Difference]: Start difference. First operand has 102 places, 95 transitions, 245 flow. Second operand 3 states and 247 transitions. [2024-11-12 12:41:03,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 97 transitions, 297 flow [2024-11-12 12:41:03,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 97 transitions, 297 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:41:03,128 INFO L231 Difference]: Finished difference. Result has 105 places, 93 transitions, 251 flow [2024-11-12 12:41:03,128 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=251, PETRI_PLACES=105, PETRI_TRANSITIONS=93} [2024-11-12 12:41:03,128 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -4 predicate places. [2024-11-12 12:41:03,128 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 93 transitions, 251 flow [2024-11-12 12:41:03,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:03,129 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:03,129 INFO L206 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] [2024-11-12 12:41:03,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-12 12:41:03,129 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-12 12:41:03,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:03,129 INFO L85 PathProgramCache]: Analyzing trace with hash 2129743107, now seen corresponding path program 1 times [2024-11-12 12:41:03,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:03,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326411112] [2024-11-12 12:41:03,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:03,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:03,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:03,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:03,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326411112] [2024-11-12 12:41:03,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326411112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:03,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:03,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:41:03,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775710363] [2024-11-12 12:41:03,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:03,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:41:03,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:03,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:41:03,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:41:03,302 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 107 [2024-11-12 12:41:03,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 93 transitions, 251 flow. Second operand has 6 states, 6 states have (on average 63.666666666666664) internal successors, (382), 6 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:03,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:03,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 107 [2024-11-12 12:41:03,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:04,033 INFO L124 PetriNetUnfolderBase]: 3704/9558 cut-off events. [2024-11-12 12:41:04,034 INFO L125 PetriNetUnfolderBase]: For 1820/1820 co-relation queries the response was YES. [2024-11-12 12:41:04,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15928 conditions, 9558 events. 3704/9558 cut-off events. For 1820/1820 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 81162 event pairs, 460 based on Foata normal form. 0/8948 useless extension candidates. Maximal degree in co-relation 15918. Up to 4549 conditions per place. [2024-11-12 12:41:04,068 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 46 selfloop transitions, 6 changer transitions 2/112 dead transitions. [2024-11-12 12:41:04,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 112 transitions, 395 flow [2024-11-12 12:41:04,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:41:04,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:41:04,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 425 transitions. [2024-11-12 12:41:04,070 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.661993769470405 [2024-11-12 12:41:04,070 INFO L175 Difference]: Start difference. First operand has 105 places, 93 transitions, 251 flow. Second operand 6 states and 425 transitions. [2024-11-12 12:41:04,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 112 transitions, 395 flow [2024-11-12 12:41:04,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 112 transitions, 393 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:41:04,072 INFO L231 Difference]: Finished difference. Result has 105 places, 90 transitions, 255 flow [2024-11-12 12:41:04,072 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=255, PETRI_PLACES=105, PETRI_TRANSITIONS=90} [2024-11-12 12:41:04,072 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -4 predicate places. [2024-11-12 12:41:04,073 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 90 transitions, 255 flow [2024-11-12 12:41:04,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.666666666666664) internal successors, (382), 6 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:04,073 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:04,073 INFO L206 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] [2024-11-12 12:41:04,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-12 12:41:04,073 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-12 12:41:04,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:04,074 INFO L85 PathProgramCache]: Analyzing trace with hash 459562348, now seen corresponding path program 1 times [2024-11-12 12:41:04,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:04,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784684349] [2024-11-12 12:41:04,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:04,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:04,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:04,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:04,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784684349] [2024-11-12 12:41:04,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784684349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:04,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:04,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:41:04,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718552890] [2024-11-12 12:41:04,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:04,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:41:04,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:04,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:41:04,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:41:04,144 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2024-11-12 12:41:04,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 90 transitions, 255 flow. Second operand has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:04,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:04,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2024-11-12 12:41:04,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:04,679 INFO L124 PetriNetUnfolderBase]: 1288/6659 cut-off events. [2024-11-12 12:41:04,679 INFO L125 PetriNetUnfolderBase]: For 1952/1952 co-relation queries the response was YES. [2024-11-12 12:41:04,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9505 conditions, 6659 events. 1288/6659 cut-off events. For 1952/1952 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 63370 event pairs, 921 based on Foata normal form. 2/5999 useless extension candidates. Maximal degree in co-relation 9495. Up to 1817 conditions per place. [2024-11-12 12:41:04,704 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 28 selfloop transitions, 5 changer transitions 0/99 dead transitions. [2024-11-12 12:41:04,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 99 transitions, 343 flow [2024-11-12 12:41:04,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:41:04,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:41:04,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 466 transitions. [2024-11-12 12:41:04,705 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7258566978193146 [2024-11-12 12:41:04,705 INFO L175 Difference]: Start difference. First operand has 105 places, 90 transitions, 255 flow. Second operand 6 states and 466 transitions. [2024-11-12 12:41:04,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 99 transitions, 343 flow [2024-11-12 12:41:04,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 99 transitions, 329 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:41:04,708 INFO L231 Difference]: Finished difference. Result has 106 places, 93 transitions, 275 flow [2024-11-12 12:41:04,708 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=275, PETRI_PLACES=106, PETRI_TRANSITIONS=93} [2024-11-12 12:41:04,709 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -3 predicate places. [2024-11-12 12:41:04,709 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 93 transitions, 275 flow [2024-11-12 12:41:04,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:04,709 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:04,709 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:04,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-12 12:41:04,709 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-12 12:41:04,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:04,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1907674652, now seen corresponding path program 1 times [2024-11-12 12:41:04,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:04,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938785994] [2024-11-12 12:41:04,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:04,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:04,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:04,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:04,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938785994] [2024-11-12 12:41:04,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938785994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:04,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:04,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:41:04,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500100459] [2024-11-12 12:41:04,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:04,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:41:04,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:04,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:41:04,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:41:04,731 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 107 [2024-11-12 12:41:04,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 93 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:04,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:04,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 107 [2024-11-12 12:41:04,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:05,591 INFO L124 PetriNetUnfolderBase]: 1754/8829 cut-off events. [2024-11-12 12:41:05,591 INFO L125 PetriNetUnfolderBase]: For 3128/3967 co-relation queries the response was YES. [2024-11-12 12:41:05,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12392 conditions, 8829 events. 1754/8829 cut-off events. For 3128/3967 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 92524 event pairs, 727 based on Foata normal form. 14/7777 useless extension candidates. Maximal degree in co-relation 12379. Up to 1919 conditions per place. [2024-11-12 12:41:05,645 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 23 selfloop transitions, 7 changer transitions 0/104 dead transitions. [2024-11-12 12:41:05,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 104 transitions, 372 flow [2024-11-12 12:41:05,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:41:05,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:41:05,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2024-11-12 12:41:05,647 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8161993769470405 [2024-11-12 12:41:05,647 INFO L175 Difference]: Start difference. First operand has 106 places, 93 transitions, 275 flow. Second operand 3 states and 262 transitions. [2024-11-12 12:41:05,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 104 transitions, 372 flow [2024-11-12 12:41:05,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 104 transitions, 366 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-12 12:41:05,652 INFO L231 Difference]: Finished difference. Result has 108 places, 99 transitions, 323 flow [2024-11-12 12:41:05,652 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=323, PETRI_PLACES=108, PETRI_TRANSITIONS=99} [2024-11-12 12:41:05,653 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, -1 predicate places. [2024-11-12 12:41:05,653 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 99 transitions, 323 flow [2024-11-12 12:41:05,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:05,653 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:05,653 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:05,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-12 12:41:05,654 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-12 12:41:05,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:05,654 INFO L85 PathProgramCache]: Analyzing trace with hash 530596909, now seen corresponding path program 1 times [2024-11-12 12:41:05,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:05,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423481905] [2024-11-12 12:41:05,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:05,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:05,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:05,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:05,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423481905] [2024-11-12 12:41:05,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423481905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:05,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:05,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 12:41:05,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743601904] [2024-11-12 12:41:05,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:05,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 12:41:05,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:05,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 12:41:05,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-12 12:41:05,767 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2024-11-12 12:41:05,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 99 transitions, 323 flow. Second operand has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:05,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:05,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2024-11-12 12:41:05,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:06,683 INFO L124 PetriNetUnfolderBase]: 2370/9833 cut-off events. [2024-11-12 12:41:06,684 INFO L125 PetriNetUnfolderBase]: For 6057/6393 co-relation queries the response was YES. [2024-11-12 12:41:06,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17304 conditions, 9833 events. 2370/9833 cut-off events. For 6057/6393 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 99960 event pairs, 612 based on Foata normal form. 4/8888 useless extension candidates. Maximal degree in co-relation 17290. Up to 3107 conditions per place. [2024-11-12 12:41:06,726 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 40 selfloop transitions, 8 changer transitions 0/115 dead transitions. [2024-11-12 12:41:06,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 115 transitions, 485 flow [2024-11-12 12:41:06,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 12:41:06,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 12:41:06,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 692 transitions. [2024-11-12 12:41:06,727 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7185877466251298 [2024-11-12 12:41:06,727 INFO L175 Difference]: Start difference. First operand has 108 places, 99 transitions, 323 flow. Second operand 9 states and 692 transitions. [2024-11-12 12:41:06,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 115 transitions, 485 flow [2024-11-12 12:41:06,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 115 transitions, 471 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:41:06,733 INFO L231 Difference]: Finished difference. Result has 117 places, 102 transitions, 353 flow [2024-11-12 12:41:06,733 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=353, PETRI_PLACES=117, PETRI_TRANSITIONS=102} [2024-11-12 12:41:06,733 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 8 predicate places. [2024-11-12 12:41:06,734 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 102 transitions, 353 flow [2024-11-12 12:41:06,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:06,734 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:06,734 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-12 12:41:06,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-12 12:41:06,734 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-12 12:41:06,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:06,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1763992574, now seen corresponding path program 1 times [2024-11-12 12:41:06,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:06,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347429878] [2024-11-12 12:41:06,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:06,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:06,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:06,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:06,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347429878] [2024-11-12 12:41:06,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347429878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:06,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:06,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 12:41:06,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396252298] [2024-11-12 12:41:06,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:06,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 12:41:06,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:06,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 12:41:06,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-12 12:41:06,855 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2024-11-12 12:41:06,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 102 transitions, 353 flow. Second operand has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:06,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:06,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2024-11-12 12:41:06,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:07,667 INFO L124 PetriNetUnfolderBase]: 2282/9724 cut-off events. [2024-11-12 12:41:07,668 INFO L125 PetriNetUnfolderBase]: For 5410/5723 co-relation queries the response was YES. [2024-11-12 12:41:07,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16531 conditions, 9724 events. 2282/9724 cut-off events. For 5410/5723 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 100648 event pairs, 461 based on Foata normal form. 8/8760 useless extension candidates. Maximal degree in co-relation 16514. Up to 2876 conditions per place. [2024-11-12 12:41:07,702 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 50 selfloop transitions, 11 changer transitions 0/128 dead transitions. [2024-11-12 12:41:07,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 128 transitions, 589 flow [2024-11-12 12:41:07,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 12:41:07,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-12 12:41:07,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 921 transitions. [2024-11-12 12:41:07,704 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7172897196261683 [2024-11-12 12:41:07,704 INFO L175 Difference]: Start difference. First operand has 117 places, 102 transitions, 353 flow. Second operand 12 states and 921 transitions. [2024-11-12 12:41:07,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 128 transitions, 589 flow [2024-11-12 12:41:07,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 128 transitions, 571 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-12 12:41:07,708 INFO L231 Difference]: Finished difference. Result has 126 places, 105 transitions, 391 flow [2024-11-12 12:41:07,708 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=391, PETRI_PLACES=126, PETRI_TRANSITIONS=105} [2024-11-12 12:41:07,708 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 17 predicate places. [2024-11-12 12:41:07,708 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 105 transitions, 391 flow [2024-11-12 12:41:07,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:07,708 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:07,709 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:07,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-12 12:41:07,709 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-12 12:41:07,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:07,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1968207184, now seen corresponding path program 1 times [2024-11-12 12:41:07,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:07,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097470378] [2024-11-12 12:41:07,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:07,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:07,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:07,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:07,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097470378] [2024-11-12 12:41:07,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097470378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:07,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:07,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-12 12:41:07,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734304328] [2024-11-12 12:41:07,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:07,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 12:41:07,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:07,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 12:41:07,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-12 12:41:07,882 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2024-11-12 12:41:07,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 105 transitions, 391 flow. Second operand has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:07,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:07,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2024-11-12 12:41:07,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:08,645 INFO L124 PetriNetUnfolderBase]: 2037/9561 cut-off events. [2024-11-12 12:41:08,645 INFO L125 PetriNetUnfolderBase]: For 5609/5846 co-relation queries the response was YES. [2024-11-12 12:41:08,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15953 conditions, 9561 events. 2037/9561 cut-off events. For 5609/5846 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 98886 event pairs, 494 based on Foata normal form. 16/8628 useless extension candidates. Maximal degree in co-relation 15933. Up to 2296 conditions per place. [2024-11-12 12:41:08,698 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 61 selfloop transitions, 14 changer transitions 0/142 dead transitions. [2024-11-12 12:41:08,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 142 transitions, 697 flow [2024-11-12 12:41:08,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-12 12:41:08,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-12 12:41:08,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1151 transitions. [2024-11-12 12:41:08,700 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7171339563862928 [2024-11-12 12:41:08,700 INFO L175 Difference]: Start difference. First operand has 126 places, 105 transitions, 391 flow. Second operand 15 states and 1151 transitions. [2024-11-12 12:41:08,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 142 transitions, 697 flow [2024-11-12 12:41:08,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 142 transitions, 667 flow, removed 7 selfloop flow, removed 8 redundant places. [2024-11-12 12:41:08,704 INFO L231 Difference]: Finished difference. Result has 135 places, 107 transitions, 417 flow [2024-11-12 12:41:08,705 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=417, PETRI_PLACES=135, PETRI_TRANSITIONS=107} [2024-11-12 12:41:08,705 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 26 predicate places. [2024-11-12 12:41:08,705 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 107 transitions, 417 flow [2024-11-12 12:41:08,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:08,706 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:08,706 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:08,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-12 12:41:08,706 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-12 12:41:08,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:08,706 INFO L85 PathProgramCache]: Analyzing trace with hash -706642367, now seen corresponding path program 1 times [2024-11-12 12:41:08,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:08,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993721036] [2024-11-12 12:41:08,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:08,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:08,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:08,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:08,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993721036] [2024-11-12 12:41:08,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993721036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:08,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:08,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-12 12:41:08,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795885949] [2024-11-12 12:41:08,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:08,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-12 12:41:08,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:08,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-12 12:41:08,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-12 12:41:08,922 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2024-11-12 12:41:08,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 107 transitions, 417 flow. Second operand has 13 states, 13 states have (on average 74.0) internal successors, (962), 13 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:08,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:08,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2024-11-12 12:41:08,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:09,146 INFO L124 PetriNetUnfolderBase]: 485/1596 cut-off events. [2024-11-12 12:41:09,146 INFO L125 PetriNetUnfolderBase]: For 2656/2656 co-relation queries the response was YES. [2024-11-12 12:41:09,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3799 conditions, 1596 events. 485/1596 cut-off events. For 2656/2656 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 10183 event pairs, 0 based on Foata normal form. 32/1628 useless extension candidates. Maximal degree in co-relation 3776. Up to 517 conditions per place. [2024-11-12 12:41:09,154 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 57 selfloop transitions, 16 changer transitions 0/116 dead transitions. [2024-11-12 12:41:09,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 116 transitions, 628 flow [2024-11-12 12:41:09,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-12 12:41:09,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-12 12:41:09,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1370 transitions. [2024-11-12 12:41:09,156 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.711318795430945 [2024-11-12 12:41:09,156 INFO L175 Difference]: Start difference. First operand has 135 places, 107 transitions, 417 flow. Second operand 18 states and 1370 transitions. [2024-11-12 12:41:09,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 116 transitions, 628 flow [2024-11-12 12:41:09,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 116 transitions, 564 flow, removed 16 selfloop flow, removed 16 redundant places. [2024-11-12 12:41:09,160 INFO L231 Difference]: Finished difference. Result has 110 places, 71 transitions, 270 flow [2024-11-12 12:41:09,160 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=270, PETRI_PLACES=110, PETRI_TRANSITIONS=71} [2024-11-12 12:41:09,161 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 1 predicate places. [2024-11-12 12:41:09,161 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 71 transitions, 270 flow [2024-11-12 12:41:09,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 74.0) internal successors, (962), 13 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:09,161 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:09,161 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:09,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-12 12:41:09,162 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-12 12:41:09,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:09,162 INFO L85 PathProgramCache]: Analyzing trace with hash 939663086, now seen corresponding path program 1 times [2024-11-12 12:41:09,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:09,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204434932] [2024-11-12 12:41:09,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:09,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:41:09,179 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:41:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:41:09,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:41:09,197 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:41:09,197 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-12 12:41:09,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-11-12 12:41:09,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-11-12 12:41:09,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-11-12 12:41:09,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2024-11-12 12:41:09,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2024-11-12 12:41:09,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2024-11-12 12:41:09,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2024-11-12 12:41:09,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2024-11-12 12:41:09,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-11-12 12:41:09,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-11-12 12:41:09,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-12 12:41:09,199 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:09,199 WARN L244 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:41:09,199 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2024-11-12 12:41:09,211 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-11-12 12:41:09,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 115 transitions, 302 flow [2024-11-12 12:41:09,306 INFO L124 PetriNetUnfolderBase]: 220/1792 cut-off events. [2024-11-12 12:41:09,306 INFO L125 PetriNetUnfolderBase]: For 242/242 co-relation queries the response was YES. [2024-11-12 12:41:09,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2018 conditions, 1792 events. 220/1792 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 10548 event pairs, 72 based on Foata normal form. 0/1551 useless extension candidates. Maximal degree in co-relation 1071. Up to 192 conditions per place. [2024-11-12 12:41:09,309 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 115 transitions, 302 flow [2024-11-12 12:41:09,312 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 115 transitions, 302 flow [2024-11-12 12:41:09,312 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:41:09,313 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;@749305e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:41:09,313 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-12 12:41:09,313 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:41:09,313 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-12 12:41:09,313 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:41:09,313 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:09,313 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:09,313 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:41:09,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:09,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1629482773, now seen corresponding path program 1 times [2024-11-12 12:41:09,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:09,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518885277] [2024-11-12 12:41:09,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:09,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:09,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:09,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:09,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518885277] [2024-11-12 12:41:09,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518885277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:09,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:09,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 12:41:09,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708337291] [2024-11-12 12:41:09,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:09,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 12:41:09,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:09,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 12:41:09,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 12:41:09,321 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 115 [2024-11-12 12:41:09,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 115 transitions, 302 flow. Second operand has 2 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:09,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:09,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 115 [2024-11-12 12:41:09,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:10,125 INFO L124 PetriNetUnfolderBase]: 2323/11440 cut-off events. [2024-11-12 12:41:10,125 INFO L125 PetriNetUnfolderBase]: For 5702/11028 co-relation queries the response was YES. [2024-11-12 12:41:10,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16399 conditions, 11440 events. 2323/11440 cut-off events. For 5702/11028 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 126010 event pairs, 2016 based on Foata normal form. 899/10837 useless extension candidates. Maximal degree in co-relation 9915. Up to 3110 conditions per place. [2024-11-12 12:41:10,163 INFO L140 encePairwiseOnDemand]: 104/115 looper letters, 19 selfloop transitions, 0 changer transitions 0/102 dead transitions. [2024-11-12 12:41:10,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 102 transitions, 314 flow [2024-11-12 12:41:10,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 12:41:10,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-12 12:41:10,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 198 transitions. [2024-11-12 12:41:10,164 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8608695652173913 [2024-11-12 12:41:10,164 INFO L175 Difference]: Start difference. First operand has 118 places, 115 transitions, 302 flow. Second operand 2 states and 198 transitions. [2024-11-12 12:41:10,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 102 transitions, 314 flow [2024-11-12 12:41:10,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 102 transitions, 314 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:41:10,167 INFO L231 Difference]: Finished difference. Result has 110 places, 102 transitions, 276 flow [2024-11-12 12:41:10,167 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=276, PETRI_PLACES=110, PETRI_TRANSITIONS=102} [2024-11-12 12:41:10,167 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -8 predicate places. [2024-11-12 12:41:10,167 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 102 transitions, 276 flow [2024-11-12 12:41:10,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:10,168 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:10,168 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:10,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-12 12:41:10,168 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:41:10,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:10,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1271229714, now seen corresponding path program 1 times [2024-11-12 12:41:10,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:10,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801165874] [2024-11-12 12:41:10,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:10,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:10,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:10,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:10,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801165874] [2024-11-12 12:41:10,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801165874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:10,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:10,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:41:10,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004308056] [2024-11-12 12:41:10,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:10,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:41:10,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:10,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:41:10,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:41:10,197 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 115 [2024-11-12 12:41:10,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 102 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:10,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:10,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 115 [2024-11-12 12:41:10,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:12,195 INFO L124 PetriNetUnfolderBase]: 4800/23166 cut-off events. [2024-11-12 12:41:12,195 INFO L125 PetriNetUnfolderBase]: For 6342/6342 co-relation queries the response was YES. [2024-11-12 12:41:12,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31656 conditions, 23166 events. 4800/23166 cut-off events. For 6342/6342 co-relation queries the response was YES. Maximal size of possible extension queue 454. Compared 277363 event pairs, 4436 based on Foata normal form. 1/21274 useless extension candidates. Maximal degree in co-relation 31647. Up to 6637 conditions per place. [2024-11-12 12:41:12,317 INFO L140 encePairwiseOnDemand]: 112/115 looper letters, 24 selfloop transitions, 2 changer transitions 3/104 dead transitions. [2024-11-12 12:41:12,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 104 transitions, 334 flow [2024-11-12 12:41:12,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:41:12,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:41:12,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2024-11-12 12:41:12,319 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7594202898550725 [2024-11-12 12:41:12,319 INFO L175 Difference]: Start difference. First operand has 110 places, 102 transitions, 276 flow. Second operand 3 states and 262 transitions. [2024-11-12 12:41:12,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 104 transitions, 334 flow [2024-11-12 12:41:12,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 104 transitions, 334 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:41:12,321 INFO L231 Difference]: Finished difference. Result has 113 places, 100 transitions, 282 flow [2024-11-12 12:41:12,322 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=113, PETRI_TRANSITIONS=100} [2024-11-12 12:41:12,322 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -5 predicate places. [2024-11-12 12:41:12,322 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 100 transitions, 282 flow [2024-11-12 12:41:12,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:12,322 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:12,322 INFO L206 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] [2024-11-12 12:41:12,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-12 12:41:12,323 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:41:12,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:12,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1330487050, now seen corresponding path program 1 times [2024-11-12 12:41:12,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:12,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796135960] [2024-11-12 12:41:12,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:12,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:12,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:12,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:12,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796135960] [2024-11-12 12:41:12,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796135960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:12,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:12,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:41:12,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174029847] [2024-11-12 12:41:12,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:12,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:41:12,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:12,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:41:12,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:41:12,528 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 115 [2024-11-12 12:41:12,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 100 transitions, 282 flow. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:12,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:12,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 115 [2024-11-12 12:41:12,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:14,918 INFO L124 PetriNetUnfolderBase]: 12237/28343 cut-off events. [2024-11-12 12:41:14,918 INFO L125 PetriNetUnfolderBase]: For 6163/6163 co-relation queries the response was YES. [2024-11-12 12:41:15,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48080 conditions, 28343 events. 12237/28343 cut-off events. For 6163/6163 co-relation queries the response was YES. Maximal size of possible extension queue 654. Compared 269037 event pairs, 1392 based on Foata normal form. 0/26633 useless extension candidates. Maximal degree in co-relation 48069. Up to 15006 conditions per place. [2024-11-12 12:41:15,088 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 53 selfloop transitions, 6 changer transitions 2/123 dead transitions. [2024-11-12 12:41:15,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 123 transitions, 448 flow [2024-11-12 12:41:15,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:41:15,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:41:15,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 456 transitions. [2024-11-12 12:41:15,089 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6608695652173913 [2024-11-12 12:41:15,089 INFO L175 Difference]: Start difference. First operand has 113 places, 100 transitions, 282 flow. Second operand 6 states and 456 transitions. [2024-11-12 12:41:15,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 123 transitions, 448 flow [2024-11-12 12:41:15,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 123 transitions, 446 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:41:15,092 INFO L231 Difference]: Finished difference. Result has 113 places, 97 transitions, 286 flow [2024-11-12 12:41:15,092 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=286, PETRI_PLACES=113, PETRI_TRANSITIONS=97} [2024-11-12 12:41:15,093 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -5 predicate places. [2024-11-12 12:41:15,093 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 97 transitions, 286 flow [2024-11-12 12:41:15,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:15,093 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:15,093 INFO L206 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] [2024-11-12 12:41:15,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-12 12:41:15,093 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:41:15,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:15,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1962575129, now seen corresponding path program 1 times [2024-11-12 12:41:15,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:15,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631728572] [2024-11-12 12:41:15,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:15,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:15,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:15,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:15,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631728572] [2024-11-12 12:41:15,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631728572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:15,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:15,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:41:15,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919061518] [2024-11-12 12:41:15,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:15,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:41:15,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:15,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:41:15,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:41:15,142 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2024-11-12 12:41:15,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 97 transitions, 286 flow. Second operand has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:15,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:15,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2024-11-12 12:41:15,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:16,580 INFO L124 PetriNetUnfolderBase]: 3980/18675 cut-off events. [2024-11-12 12:41:16,581 INFO L125 PetriNetUnfolderBase]: For 6485/6485 co-relation queries the response was YES. [2024-11-12 12:41:16,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26753 conditions, 18675 events. 3980/18675 cut-off events. For 6485/6485 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 211175 event pairs, 2455 based on Foata normal form. 2/16849 useless extension candidates. Maximal degree in co-relation 26742. Up to 5315 conditions per place. [2024-11-12 12:41:16,653 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 31 selfloop transitions, 5 changer transitions 0/106 dead transitions. [2024-11-12 12:41:16,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 106 transitions, 380 flow [2024-11-12 12:41:16,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:41:16,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:41:16,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 493 transitions. [2024-11-12 12:41:16,656 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7144927536231884 [2024-11-12 12:41:16,656 INFO L175 Difference]: Start difference. First operand has 113 places, 97 transitions, 286 flow. Second operand 6 states and 493 transitions. [2024-11-12 12:41:16,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 106 transitions, 380 flow [2024-11-12 12:41:16,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 106 transitions, 366 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:41:16,660 INFO L231 Difference]: Finished difference. Result has 114 places, 100 transitions, 306 flow [2024-11-12 12:41:16,660 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=306, PETRI_PLACES=114, PETRI_TRANSITIONS=100} [2024-11-12 12:41:16,660 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -4 predicate places. [2024-11-12 12:41:16,660 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 100 transitions, 306 flow [2024-11-12 12:41:16,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:16,660 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:16,660 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:16,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-12 12:41:16,661 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:41:16,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:16,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1705442531, now seen corresponding path program 1 times [2024-11-12 12:41:16,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:16,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826242240] [2024-11-12 12:41:16,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:16,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:16,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:16,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:16,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826242240] [2024-11-12 12:41:16,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826242240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:16,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:16,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:41:16,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835385463] [2024-11-12 12:41:16,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:16,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:41:16,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:16,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:41:16,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:41:16,691 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 115 [2024-11-12 12:41:16,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 100 transitions, 306 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:16,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:16,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 115 [2024-11-12 12:41:16,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:18,636 INFO L124 PetriNetUnfolderBase]: 5985/26381 cut-off events. [2024-11-12 12:41:18,636 INFO L125 PetriNetUnfolderBase]: For 10449/13035 co-relation queries the response was YES. [2024-11-12 12:41:18,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37849 conditions, 26381 events. 5985/26381 cut-off events. For 10449/13035 co-relation queries the response was YES. Maximal size of possible extension queue 634. Compared 324092 event pairs, 2690 based on Foata normal form. 20/23295 useless extension candidates. Maximal degree in co-relation 37835. Up to 6163 conditions per place. [2024-11-12 12:41:18,740 INFO L140 encePairwiseOnDemand]: 106/115 looper letters, 27 selfloop transitions, 8 changer transitions 0/113 dead transitions. [2024-11-12 12:41:18,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 113 transitions, 420 flow [2024-11-12 12:41:18,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:41:18,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:41:18,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2024-11-12 12:41:18,741 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.808695652173913 [2024-11-12 12:41:18,741 INFO L175 Difference]: Start difference. First operand has 114 places, 100 transitions, 306 flow. Second operand 3 states and 279 transitions. [2024-11-12 12:41:18,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 113 transitions, 420 flow [2024-11-12 12:41:18,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 113 transitions, 414 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-12 12:41:18,748 INFO L231 Difference]: Finished difference. Result has 116 places, 107 transitions, 362 flow [2024-11-12 12:41:18,748 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=362, PETRI_PLACES=116, PETRI_TRANSITIONS=107} [2024-11-12 12:41:18,748 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -2 predicate places. [2024-11-12 12:41:18,748 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 107 transitions, 362 flow [2024-11-12 12:41:18,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:18,749 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:18,749 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:18,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-12 12:41:18,749 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:41:18,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:18,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1126043589, now seen corresponding path program 1 times [2024-11-12 12:41:18,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:18,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134915190] [2024-11-12 12:41:18,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:18,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:18,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:18,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:18,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134915190] [2024-11-12 12:41:18,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134915190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:18,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:18,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 12:41:18,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355690159] [2024-11-12 12:41:18,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:18,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 12:41:18,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:18,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 12:41:18,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-12 12:41:18,833 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2024-11-12 12:41:18,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 107 transitions, 362 flow. Second operand has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:18,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:18,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2024-11-12 12:41:18,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:21,555 INFO L124 PetriNetUnfolderBase]: 7561/28064 cut-off events. [2024-11-12 12:41:21,555 INFO L125 PetriNetUnfolderBase]: For 19957/21015 co-relation queries the response was YES. [2024-11-12 12:41:21,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50526 conditions, 28064 events. 7561/28064 cut-off events. For 19957/21015 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 326593 event pairs, 2561 based on Foata normal form. 4/25166 useless extension candidates. Maximal degree in co-relation 50511. Up to 9621 conditions per place. [2024-11-12 12:41:21,743 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 44 selfloop transitions, 8 changer transitions 0/123 dead transitions. [2024-11-12 12:41:21,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 123 transitions, 532 flow [2024-11-12 12:41:21,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 12:41:21,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 12:41:21,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 731 transitions. [2024-11-12 12:41:21,744 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.706280193236715 [2024-11-12 12:41:21,744 INFO L175 Difference]: Start difference. First operand has 116 places, 107 transitions, 362 flow. Second operand 9 states and 731 transitions. [2024-11-12 12:41:21,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 123 transitions, 532 flow [2024-11-12 12:41:21,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 123 transitions, 516 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:41:21,759 INFO L231 Difference]: Finished difference. Result has 125 places, 110 transitions, 390 flow [2024-11-12 12:41:21,759 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=390, PETRI_PLACES=125, PETRI_TRANSITIONS=110} [2024-11-12 12:41:21,759 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 7 predicate places. [2024-11-12 12:41:21,759 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 110 transitions, 390 flow [2024-11-12 12:41:21,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:21,760 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:21,760 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-12 12:41:21,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-12 12:41:21,760 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:41:21,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:21,761 INFO L85 PathProgramCache]: Analyzing trace with hash -525129294, now seen corresponding path program 1 times [2024-11-12 12:41:21,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:21,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710778965] [2024-11-12 12:41:21,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:21,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:21,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:21,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:21,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710778965] [2024-11-12 12:41:21,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710778965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:21,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:21,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 12:41:21,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355578144] [2024-11-12 12:41:21,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:21,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 12:41:21,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:21,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 12:41:21,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-12 12:41:21,882 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2024-11-12 12:41:21,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 110 transitions, 390 flow. Second operand has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:21,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:21,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2024-11-12 12:41:21,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:25,100 INFO L124 PetriNetUnfolderBase]: 7473/27953 cut-off events. [2024-11-12 12:41:25,101 INFO L125 PetriNetUnfolderBase]: For 17394/18429 co-relation queries the response was YES. [2024-11-12 12:41:25,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48555 conditions, 27953 events. 7473/27953 cut-off events. For 17394/18429 co-relation queries the response was YES. Maximal size of possible extension queue 584. Compared 329552 event pairs, 2019 based on Foata normal form. 8/24957 useless extension candidates. Maximal degree in co-relation 48537. Up to 9390 conditions per place. [2024-11-12 12:41:25,354 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 54 selfloop transitions, 11 changer transitions 0/136 dead transitions. [2024-11-12 12:41:25,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 136 transitions, 634 flow [2024-11-12 12:41:25,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 12:41:25,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-12 12:41:25,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 972 transitions. [2024-11-12 12:41:25,357 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7043478260869566 [2024-11-12 12:41:25,357 INFO L175 Difference]: Start difference. First operand has 125 places, 110 transitions, 390 flow. Second operand 12 states and 972 transitions. [2024-11-12 12:41:25,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 136 transitions, 634 flow [2024-11-12 12:41:25,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 136 transitions, 616 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-12 12:41:25,364 INFO L231 Difference]: Finished difference. Result has 134 places, 113 transitions, 428 flow [2024-11-12 12:41:25,365 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=428, PETRI_PLACES=134, PETRI_TRANSITIONS=113} [2024-11-12 12:41:25,365 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 16 predicate places. [2024-11-12 12:41:25,365 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 113 transitions, 428 flow [2024-11-12 12:41:25,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:25,365 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:25,365 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:25,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-12 12:41:25,366 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:41:25,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:25,366 INFO L85 PathProgramCache]: Analyzing trace with hash -681625494, now seen corresponding path program 1 times [2024-11-12 12:41:25,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:25,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652655203] [2024-11-12 12:41:25,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:25,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:25,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:25,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:25,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652655203] [2024-11-12 12:41:25,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652655203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:25,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:25,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-12 12:41:25,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691985117] [2024-11-12 12:41:25,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:25,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 12:41:25,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:25,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 12:41:25,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-12 12:41:25,549 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2024-11-12 12:41:25,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 113 transitions, 428 flow. Second operand has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:25,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:25,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2024-11-12 12:41:25,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:28,039 INFO L124 PetriNetUnfolderBase]: 7228/27704 cut-off events. [2024-11-12 12:41:28,039 INFO L125 PetriNetUnfolderBase]: For 18396/19355 co-relation queries the response was YES. [2024-11-12 12:41:28,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48147 conditions, 27704 events. 7228/27704 cut-off events. For 18396/19355 co-relation queries the response was YES. Maximal size of possible extension queue 682. Compared 334186 event pairs, 2100 based on Foata normal form. 16/24771 useless extension candidates. Maximal degree in co-relation 48126. Up to 8810 conditions per place. [2024-11-12 12:41:28,233 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 67 selfloop transitions, 14 changer transitions 0/152 dead transitions. [2024-11-12 12:41:28,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 152 transitions, 764 flow [2024-11-12 12:41:28,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-12 12:41:28,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-12 12:41:28,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1216 transitions. [2024-11-12 12:41:28,235 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7049275362318841 [2024-11-12 12:41:28,235 INFO L175 Difference]: Start difference. First operand has 134 places, 113 transitions, 428 flow. Second operand 15 states and 1216 transitions. [2024-11-12 12:41:28,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 152 transitions, 764 flow [2024-11-12 12:41:28,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 152 transitions, 734 flow, removed 7 selfloop flow, removed 8 redundant places. [2024-11-12 12:41:28,242 INFO L231 Difference]: Finished difference. Result has 143 places, 116 transitions, 466 flow [2024-11-12 12:41:28,243 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=466, PETRI_PLACES=143, PETRI_TRANSITIONS=116} [2024-11-12 12:41:28,243 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 25 predicate places. [2024-11-12 12:41:28,243 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 116 transitions, 466 flow [2024-11-12 12:41:28,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 78.0) internal successors, (858), 11 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:28,244 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:28,244 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:28,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-12 12:41:28,244 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:41:28,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:28,244 INFO L85 PathProgramCache]: Analyzing trace with hash -78119069, now seen corresponding path program 1 times [2024-11-12 12:41:28,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:28,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225321948] [2024-11-12 12:41:28,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:28,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:28,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:28,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:28,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225321948] [2024-11-12 12:41:28,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225321948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:28,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:28,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-12 12:41:28,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337475280] [2024-11-12 12:41:28,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:28,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-12 12:41:28,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:28,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-12 12:41:28,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-12 12:41:28,419 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2024-11-12 12:41:28,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 116 transitions, 466 flow. Second operand has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:28,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:28,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2024-11-12 12:41:28,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:31,011 INFO L124 PetriNetUnfolderBase]: 6602/27953 cut-off events. [2024-11-12 12:41:31,011 INFO L125 PetriNetUnfolderBase]: For 19098/19820 co-relation queries the response was YES. [2024-11-12 12:41:31,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47223 conditions, 27953 events. 6602/27953 cut-off events. For 19098/19820 co-relation queries the response was YES. Maximal size of possible extension queue 691. Compared 342811 event pairs, 1919 based on Foata normal form. 32/25093 useless extension candidates. Maximal degree in co-relation 47199. Up to 7417 conditions per place. [2024-11-12 12:41:31,273 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 81 selfloop transitions, 17 changer transitions 0/169 dead transitions. [2024-11-12 12:41:31,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 169 transitions, 886 flow [2024-11-12 12:41:31,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-12 12:41:31,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-12 12:41:31,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1461 transitions. [2024-11-12 12:41:31,275 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7057971014492753 [2024-11-12 12:41:31,275 INFO L175 Difference]: Start difference. First operand has 143 places, 116 transitions, 466 flow. Second operand 18 states and 1461 transitions. [2024-11-12 12:41:31,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 169 transitions, 886 flow [2024-11-12 12:41:31,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 169 transitions, 844 flow, removed 10 selfloop flow, removed 11 redundant places. [2024-11-12 12:41:31,283 INFO L231 Difference]: Finished difference. Result has 152 places, 118 transitions, 490 flow [2024-11-12 12:41:31,283 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=490, PETRI_PLACES=152, PETRI_TRANSITIONS=118} [2024-11-12 12:41:31,284 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 34 predicate places. [2024-11-12 12:41:31,284 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 118 transitions, 490 flow [2024-11-12 12:41:31,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:31,284 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:31,284 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:31,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-12 12:41:31,285 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:41:31,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:31,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2128600483, now seen corresponding path program 1 times [2024-11-12 12:41:31,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:31,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418228757] [2024-11-12 12:41:31,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:31,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:31,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:31,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:31,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418228757] [2024-11-12 12:41:31,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418228757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:31,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:31,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-12 12:41:31,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665158529] [2024-11-12 12:41:31,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:31,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-12 12:41:31,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:31,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-12 12:41:31,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-12 12:41:31,522 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2024-11-12 12:41:31,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 118 transitions, 490 flow. Second operand has 15 states, 15 states have (on average 78.0) internal successors, (1170), 15 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:31,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:31,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2024-11-12 12:41:31,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:31,921 INFO L124 PetriNetUnfolderBase]: 1221/3434 cut-off events. [2024-11-12 12:41:31,921 INFO L125 PetriNetUnfolderBase]: For 7582/7582 co-relation queries the response was YES. [2024-11-12 12:41:31,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8665 conditions, 3434 events. 1221/3434 cut-off events. For 7582/7582 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 24872 event pairs, 0 based on Foata normal form. 64/3498 useless extension candidates. Maximal degree in co-relation 8638. Up to 1285 conditions per place. [2024-11-12 12:41:31,942 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 77 selfloop transitions, 19 changer transitions 0/143 dead transitions. [2024-11-12 12:41:31,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 143 transitions, 808 flow [2024-11-12 12:41:31,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-12 12:41:31,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-12 12:41:31,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1693 transitions. [2024-11-12 12:41:31,944 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7010351966873706 [2024-11-12 12:41:31,944 INFO L175 Difference]: Start difference. First operand has 152 places, 118 transitions, 490 flow. Second operand 21 states and 1693 transitions. [2024-11-12 12:41:31,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 143 transitions, 808 flow [2024-11-12 12:41:31,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 143 transitions, 722 flow, removed 23 selfloop flow, removed 20 redundant places. [2024-11-12 12:41:31,952 INFO L231 Difference]: Finished difference. Result has 126 places, 80 transitions, 316 flow [2024-11-12 12:41:31,952 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=316, PETRI_PLACES=126, PETRI_TRANSITIONS=80} [2024-11-12 12:41:31,952 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 8 predicate places. [2024-11-12 12:41:31,953 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 80 transitions, 316 flow [2024-11-12 12:41:31,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 78.0) internal successors, (1170), 15 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:31,953 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:31,953 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:31,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-12 12:41:31,953 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:41:31,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:31,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1625003764, now seen corresponding path program 1 times [2024-11-12 12:41:31,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:31,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502715817] [2024-11-12 12:41:31,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:31,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:41:31,973 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:41:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:41:31,991 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:41:31,992 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:41:31,992 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-12 12:41:31,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-12 12:41:31,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-12 12:41:31,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-12 12:41:31,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-12 12:41:31,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-12 12:41:31,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-12 12:41:31,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-12 12:41:31,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-12 12:41:31,993 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-12 12:41:31,993 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-12 12:41:31,993 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-12 12:41:31,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-12 12:41:31,993 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:31,993 WARN L244 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:41:31,993 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2024-11-12 12:41:32,006 INFO L143 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2024-11-12 12:41:32,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 123 transitions, 337 flow [2024-11-12 12:41:32,208 INFO L124 PetriNetUnfolderBase]: 480/3428 cut-off events. [2024-11-12 12:41:32,208 INFO L125 PetriNetUnfolderBase]: For 525/525 co-relation queries the response was YES. [2024-11-12 12:41:32,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3919 conditions, 3428 events. 480/3428 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 25187 event pairs, 201 based on Foata normal form. 0/2988 useless extension candidates. Maximal degree in co-relation 2010. Up to 448 conditions per place. [2024-11-12 12:41:32,217 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 123 transitions, 337 flow [2024-11-12 12:41:32,224 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 123 transitions, 337 flow [2024-11-12 12:41:32,225 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:41:32,225 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;@749305e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:41:32,225 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-12 12:41:32,226 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:41:32,226 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-12 12:41:32,226 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:41:32,226 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:32,226 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:32,226 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-12 12:41:32,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:32,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1031977845, now seen corresponding path program 1 times [2024-11-12 12:41:32,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:32,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508907602] [2024-11-12 12:41:32,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:32,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:32,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:32,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:32,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508907602] [2024-11-12 12:41:32,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508907602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:32,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:32,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 12:41:32,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329746533] [2024-11-12 12:41:32,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:32,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 12:41:32,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:32,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 12:41:32,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 12:41:32,234 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 123 [2024-11-12 12:41:32,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 123 transitions, 337 flow. Second operand has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:32,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:32,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 123 [2024-11-12 12:41:32,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:34,944 INFO L124 PetriNetUnfolderBase]: 8348/35176 cut-off events. [2024-11-12 12:41:34,944 INFO L125 PetriNetUnfolderBase]: For 19386/38800 co-relation queries the response was YES. [2024-11-12 12:41:35,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51839 conditions, 35176 events. 8348/35176 cut-off events. For 19386/38800 co-relation queries the response was YES. Maximal size of possible extension queue 850. Compared 457378 event pairs, 7375 based on Foata normal form. 2620/33171 useless extension candidates. Maximal degree in co-relation 32111. Up to 10656 conditions per place. [2024-11-12 12:41:35,209 INFO L140 encePairwiseOnDemand]: 111/123 looper letters, 22 selfloop transitions, 0 changer transitions 0/109 dead transitions. [2024-11-12 12:41:35,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 109 transitions, 353 flow [2024-11-12 12:41:35,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 12:41:35,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-12 12:41:35,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 210 transitions. [2024-11-12 12:41:35,210 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8536585365853658 [2024-11-12 12:41:35,210 INFO L175 Difference]: Start difference. First operand has 127 places, 123 transitions, 337 flow. Second operand 2 states and 210 transitions. [2024-11-12 12:41:35,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 109 transitions, 353 flow [2024-11-12 12:41:35,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 109 transitions, 353 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:41:35,218 INFO L231 Difference]: Finished difference. Result has 118 places, 109 transitions, 309 flow [2024-11-12 12:41:35,218 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=309, PETRI_PLACES=118, PETRI_TRANSITIONS=109} [2024-11-12 12:41:35,219 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -9 predicate places. [2024-11-12 12:41:35,219 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 109 transitions, 309 flow [2024-11-12 12:41:35,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:35,219 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:35,219 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:35,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-12 12:41:35,219 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-12 12:41:35,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:35,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1777054985, now seen corresponding path program 1 times [2024-11-12 12:41:35,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:35,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264739263] [2024-11-12 12:41:35,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:35,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:35,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:35,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:35,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264739263] [2024-11-12 12:41:35,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264739263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:35,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:35,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:41:35,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871702771] [2024-11-12 12:41:35,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:35,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:41:35,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:35,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:41:35,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:41:35,247 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 123 [2024-11-12 12:41:35,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 109 transitions, 309 flow. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:35,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:35,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 123 [2024-11-12 12:41:35,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:41,903 INFO L124 PetriNetUnfolderBase]: 15877/67988 cut-off events. [2024-11-12 12:41:41,903 INFO L125 PetriNetUnfolderBase]: For 20791/20791 co-relation queries the response was YES. [2024-11-12 12:41:42,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95013 conditions, 67988 events. 15877/67988 cut-off events. For 20791/20791 co-relation queries the response was YES. Maximal size of possible extension queue 1186. Compared 936795 event pairs, 14784 based on Foata normal form. 1/62733 useless extension candidates. Maximal degree in co-relation 95003. Up to 21014 conditions per place. [2024-11-12 12:41:42,252 INFO L140 encePairwiseOnDemand]: 120/123 looper letters, 27 selfloop transitions, 2 changer transitions 3/111 dead transitions. [2024-11-12 12:41:42,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 111 transitions, 373 flow [2024-11-12 12:41:42,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:41:42,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:41:42,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2024-11-12 12:41:42,253 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7506775067750677 [2024-11-12 12:41:42,253 INFO L175 Difference]: Start difference. First operand has 118 places, 109 transitions, 309 flow. Second operand 3 states and 277 transitions. [2024-11-12 12:41:42,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 111 transitions, 373 flow [2024-11-12 12:41:42,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 111 transitions, 373 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:41:42,255 INFO L231 Difference]: Finished difference. Result has 121 places, 107 transitions, 315 flow [2024-11-12 12:41:42,256 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=315, PETRI_PLACES=121, PETRI_TRANSITIONS=107} [2024-11-12 12:41:42,256 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -6 predicate places. [2024-11-12 12:41:42,256 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 107 transitions, 315 flow [2024-11-12 12:41:42,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:42,256 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:42,256 INFO L206 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] [2024-11-12 12:41:42,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-12 12:41:42,256 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-12 12:41:42,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:42,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1632802575, now seen corresponding path program 1 times [2024-11-12 12:41:42,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:42,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085575242] [2024-11-12 12:41:42,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:42,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:42,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:42,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:42,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085575242] [2024-11-12 12:41:42,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085575242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:42,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:42,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:41:42,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047527535] [2024-11-12 12:41:42,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:42,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:41:42,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:42,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:41:42,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:41:42,500 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 123 [2024-11-12 12:41:42,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 107 transitions, 315 flow. Second operand has 6 states, 6 states have (on average 71.66666666666667) internal successors, (430), 6 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:42,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:42,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 123 [2024-11-12 12:41:42,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:50,841 INFO L124 PetriNetUnfolderBase]: 40254/84695 cut-off events. [2024-11-12 12:41:50,841 INFO L125 PetriNetUnfolderBase]: For 20298/20298 co-relation queries the response was YES. [2024-11-12 12:41:51,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146508 conditions, 84695 events. 40254/84695 cut-off events. For 20298/20298 co-relation queries the response was YES. Maximal size of possible extension queue 1776. Compared 881345 event pairs, 34428 based on Foata normal form. 0/81309 useless extension candidates. Maximal degree in co-relation 146496. Up to 49523 conditions per place. [2024-11-12 12:41:51,392 INFO L140 encePairwiseOnDemand]: 117/123 looper letters, 60 selfloop transitions, 6 changer transitions 2/134 dead transitions. [2024-11-12 12:41:51,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 134 transitions, 503 flow [2024-11-12 12:41:51,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:41:51,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:41:51,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 487 transitions. [2024-11-12 12:41:51,393 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6598915989159891 [2024-11-12 12:41:51,393 INFO L175 Difference]: Start difference. First operand has 121 places, 107 transitions, 315 flow. Second operand 6 states and 487 transitions. [2024-11-12 12:41:51,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 134 transitions, 503 flow [2024-11-12 12:41:51,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 134 transitions, 501 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:41:51,433 INFO L231 Difference]: Finished difference. Result has 121 places, 104 transitions, 319 flow [2024-11-12 12:41:51,433 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=319, PETRI_PLACES=121, PETRI_TRANSITIONS=104} [2024-11-12 12:41:51,433 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -6 predicate places. [2024-11-12 12:41:51,433 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 104 transitions, 319 flow [2024-11-12 12:41:51,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.66666666666667) internal successors, (430), 6 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:51,433 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:51,434 INFO L206 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] [2024-11-12 12:41:51,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-12 12:41:51,434 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-12 12:41:51,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:51,434 INFO L85 PathProgramCache]: Analyzing trace with hash 303078606, now seen corresponding path program 1 times [2024-11-12 12:41:51,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:51,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440235713] [2024-11-12 12:41:51,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:51,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:51,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:51,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:51,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440235713] [2024-11-12 12:41:51,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440235713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:51,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:51,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:41:51,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858809381] [2024-11-12 12:41:51,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:51,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:41:51,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:51,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:41:51,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:41:51,493 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 123 [2024-11-12 12:41:51,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 104 transitions, 319 flow. Second operand has 5 states, 5 states have (on average 81.8) internal successors, (409), 5 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:51,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:51,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 123 [2024-11-12 12:41:51,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:41:57,063 INFO L124 PetriNetUnfolderBase]: 12308/53403 cut-off events. [2024-11-12 12:41:57,063 INFO L125 PetriNetUnfolderBase]: For 21068/21068 co-relation queries the response was YES. [2024-11-12 12:41:57,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76961 conditions, 53403 events. 12308/53403 cut-off events. For 21068/21068 co-relation queries the response was YES. Maximal size of possible extension queue 993. Compared 705590 event pairs, 8378 based on Foata normal form. 2/48277 useless extension candidates. Maximal degree in co-relation 76949. Up to 15741 conditions per place. [2024-11-12 12:41:57,399 INFO L140 encePairwiseOnDemand]: 118/123 looper letters, 34 selfloop transitions, 5 changer transitions 0/113 dead transitions. [2024-11-12 12:41:57,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 113 transitions, 419 flow [2024-11-12 12:41:57,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:41:57,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:41:57,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 520 transitions. [2024-11-12 12:41:57,401 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7046070460704607 [2024-11-12 12:41:57,401 INFO L175 Difference]: Start difference. First operand has 121 places, 104 transitions, 319 flow. Second operand 6 states and 520 transitions. [2024-11-12 12:41:57,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 113 transitions, 419 flow [2024-11-12 12:41:57,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 113 transitions, 405 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:41:57,408 INFO L231 Difference]: Finished difference. Result has 122 places, 107 transitions, 339 flow [2024-11-12 12:41:57,408 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=122, PETRI_TRANSITIONS=107} [2024-11-12 12:41:57,408 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -5 predicate places. [2024-11-12 12:41:57,409 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 107 transitions, 339 flow [2024-11-12 12:41:57,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 81.8) internal successors, (409), 5 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:57,409 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:41:57,409 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:41:57,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-12 12:41:57,409 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-12 12:41:57,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:41:57,409 INFO L85 PathProgramCache]: Analyzing trace with hash 902771890, now seen corresponding path program 1 times [2024-11-12 12:41:57,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:41:57,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323480932] [2024-11-12 12:41:57,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:41:57,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:41:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:41:57,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:41:57,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:41:57,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323480932] [2024-11-12 12:41:57,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323480932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:41:57,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:41:57,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:41:57,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087469157] [2024-11-12 12:41:57,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:41:57,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:41:57,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:41:57,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:41:57,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:41:57,432 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 123 [2024-11-12 12:41:57,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 107 transitions, 339 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:41:57,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:41:57,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 123 [2024-11-12 12:41:57,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand