./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 b00ba58edbbf9092a3bbde4865c9e14ef534546a29b4ba514bb7ebaf27fc72c0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:07:14,439 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:07:14,529 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:07:14,533 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:07:14,533 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:07:14,568 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:07:14,569 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:07:14,570 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:07:14,570 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:07:14,574 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:07:14,574 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:07:14,574 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:07:14,574 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:07:14,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:07:14,575 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:07:14,575 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:07:14,575 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:07:14,576 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:07:14,576 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:07:14,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:07:14,577 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:07:14,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:07:14,578 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:07:14,580 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:07:14,580 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:07:14,580 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:07:14,580 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:07:14,581 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:07:14,581 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:07:14,581 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:07:14,582 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:07:14,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:07:14,582 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:07:14,583 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:07:14,583 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:07:14,583 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:07:14,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:07:14,584 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:07:14,584 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:07:14,585 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:07:14,585 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:07:14,585 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b00ba58edbbf9092a3bbde4865c9e14ef534546a29b4ba514bb7ebaf27fc72c0 [2024-10-11 17:07:14,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:07:14,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:07:14,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:07:14,865 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:07:14,865 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:07:14,867 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i [2024-10-11 17:07:16,219 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:07:16,501 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:07:16,502 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i [2024-10-11 17:07:16,524 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f7f6d2971/8ea7defc680f44fe92f9abcb16a836b1/FLAGeefb95cc3 [2024-10-11 17:07:16,541 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f7f6d2971/8ea7defc680f44fe92f9abcb16a836b1 [2024-10-11 17:07:16,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:07:16,545 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:07:16,547 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:07:16,548 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:07:16,553 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:07:16,554 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:07:16" (1/1) ... [2024-10-11 17:07:16,554 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d91dace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:16, skipping insertion in model container [2024-10-11 17:07:16,555 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:07:16" (1/1) ... [2024-10-11 17:07:16,612 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:07:17,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:07:17,102 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:07:17,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:07:17,274 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:07:17,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:17 WrapperNode [2024-10-11 17:07:17,274 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:07:17,279 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:07:17,279 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:07:17,279 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:07:17,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:17" (1/1) ... [2024-10-11 17:07:17,333 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:17" (1/1) ... [2024-10-11 17:07:17,368 INFO L138 Inliner]: procedures = 368, calls = 35, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 207 [2024-10-11 17:07:17,368 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:07:17,370 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:07:17,371 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:07:17,371 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:07:17,379 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:17" (1/1) ... [2024-10-11 17:07:17,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:17" (1/1) ... [2024-10-11 17:07:17,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:17" (1/1) ... [2024-10-11 17:07:17,390 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:17" (1/1) ... [2024-10-11 17:07:17,417 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:17" (1/1) ... [2024-10-11 17:07:17,423 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:17" (1/1) ... [2024-10-11 17:07:17,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:17" (1/1) ... [2024-10-11 17:07:17,431 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:17" (1/1) ... [2024-10-11 17:07:17,438 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:07:17,443 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:07:17,443 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:07:17,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:07:17,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:17" (1/1) ... [2024-10-11 17:07:17,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:07:17,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:07:17,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:07:17,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:07:17,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-11 17:07:17,527 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:07:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:07:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:07:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:07:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 17:07:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:07:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-11 17:07:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 17:07:17,529 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 17:07:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 17:07:17,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:07:17,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:07:17,531 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:07:17,678 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:07:17,681 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:07:18,073 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:07:18,073 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:07:18,117 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:07:18,119 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 17:07:18,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:07:18 BoogieIcfgContainer [2024-10-11 17:07:18,119 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:07:18,122 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:07:18,122 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:07:18,125 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:07:18,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:07:16" (1/3) ... [2024-10-11 17:07:18,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf0fe5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:07:18, skipping insertion in model container [2024-10-11 17:07:18,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:17" (2/3) ... [2024-10-11 17:07:18,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf0fe5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:07:18, skipping insertion in model container [2024-10-11 17:07:18,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:07:18" (3/3) ... [2024-10-11 17:07:18,128 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_05-ptra_rc.i [2024-10-11 17:07:18,151 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:07:18,152 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-10-11 17:07:18,152 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:07:18,240 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 17:07:18,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 244 places, 240 transitions, 484 flow [2024-10-11 17:07:18,376 INFO L124 PetriNetUnfolderBase]: 0/239 cut-off events. [2024-10-11 17:07:18,379 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:18,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 239 events. 0/239 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 93 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-10-11 17:07:18,384 INFO L82 GeneralOperation]: Start removeDead. Operand has 244 places, 240 transitions, 484 flow [2024-10-11 17:07:18,391 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 243 places, 239 transitions, 481 flow [2024-10-11 17:07:18,400 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:07:18,409 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;@3136f45e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:07:18,409 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-10-11 17:07:18,446 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:07:18,446 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2024-10-11 17:07:18,447 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:18,447 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:18,448 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:18,449 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:07:18,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:18,456 INFO L85 PathProgramCache]: Analyzing trace with hash 408968249, now seen corresponding path program 1 times [2024-10-11 17:07:18,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:18,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838861771] [2024-10-11 17:07:18,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:18,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:19,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:19,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:19,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838861771] [2024-10-11 17:07:19,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838861771] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:19,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:19,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:19,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495645657] [2024-10-11 17:07:19,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:19,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:19,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:19,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:19,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:20,006 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 240 [2024-10-11 17:07:20,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 239 transitions, 481 flow. Second operand has 6 states, 6 states have (on average 171.33333333333334) internal successors, (1028), 6 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:20,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:20,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 240 [2024-10-11 17:07:20,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:20,255 INFO L124 PetriNetUnfolderBase]: 220/1062 cut-off events. [2024-10-11 17:07:20,256 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:07:20,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1574 conditions, 1062 events. 220/1062 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5475 event pairs, 220 based on Foata normal form. 0/954 useless extension candidates. Maximal degree in co-relation 1401. Up to 493 conditions per place. [2024-10-11 17:07:20,268 INFO L140 encePairwiseOnDemand]: 222/240 looper letters, 52 selfloop transitions, 15 changer transitions 0/236 dead transitions. [2024-10-11 17:07:20,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 236 transitions, 609 flow [2024-10-11 17:07:20,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:20,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:20,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1090 transitions. [2024-10-11 17:07:20,285 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7569444444444444 [2024-10-11 17:07:20,289 INFO L175 Difference]: Start difference. First operand has 243 places, 239 transitions, 481 flow. Second operand 6 states and 1090 transitions. [2024-10-11 17:07:20,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 236 transitions, 609 flow [2024-10-11 17:07:20,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 236 transitions, 608 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:07:20,299 INFO L231 Difference]: Finished difference. Result has 244 places, 236 transitions, 504 flow [2024-10-11 17:07:20,301 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=504, PETRI_PLACES=244, PETRI_TRANSITIONS=236} [2024-10-11 17:07:20,305 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 1 predicate places. [2024-10-11 17:07:20,306 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 236 transitions, 504 flow [2024-10-11 17:07:20,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.33333333333334) internal successors, (1028), 6 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:20,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:20,307 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:20,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:07:20,308 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:07:20,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:20,310 INFO L85 PathProgramCache]: Analyzing trace with hash 535129878, now seen corresponding path program 1 times [2024-10-11 17:07:20,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:20,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627052992] [2024-10-11 17:07:20,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:20,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:20,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:20,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:20,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627052992] [2024-10-11 17:07:20,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627052992] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:20,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:20,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:20,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640154337] [2024-10-11 17:07:20,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:20,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:20,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:20,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:20,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:21,119 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 240 [2024-10-11 17:07:21,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 236 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 171.33333333333334) internal successors, (1028), 6 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:21,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:21,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 240 [2024-10-11 17:07:21,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:21,301 INFO L124 PetriNetUnfolderBase]: 220/1059 cut-off events. [2024-10-11 17:07:21,302 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:21,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1586 conditions, 1059 events. 220/1059 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5458 event pairs, 220 based on Foata normal form. 0/954 useless extension candidates. Maximal degree in co-relation 1426. Up to 493 conditions per place. [2024-10-11 17:07:21,312 INFO L140 encePairwiseOnDemand]: 222/240 looper letters, 52 selfloop transitions, 15 changer transitions 0/233 dead transitions. [2024-10-11 17:07:21,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 233 transitions, 632 flow [2024-10-11 17:07:21,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:21,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:21,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1090 transitions. [2024-10-11 17:07:21,318 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7569444444444444 [2024-10-11 17:07:21,318 INFO L175 Difference]: Start difference. First operand has 244 places, 236 transitions, 504 flow. Second operand 6 states and 1090 transitions. [2024-10-11 17:07:21,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 233 transitions, 632 flow [2024-10-11 17:07:21,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 233 transitions, 602 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:21,325 INFO L231 Difference]: Finished difference. Result has 241 places, 233 transitions, 498 flow [2024-10-11 17:07:21,326 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=498, PETRI_PLACES=241, PETRI_TRANSITIONS=233} [2024-10-11 17:07:21,327 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -2 predicate places. [2024-10-11 17:07:21,327 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 233 transitions, 498 flow [2024-10-11 17:07:21,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.33333333333334) internal successors, (1028), 6 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:21,328 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:21,329 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:21,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:07:21,329 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:07:21,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:21,330 INFO L85 PathProgramCache]: Analyzing trace with hash 106327977, now seen corresponding path program 1 times [2024-10-11 17:07:21,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:21,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983339391] [2024-10-11 17:07:21,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:21,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:21,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:21,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:21,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983339391] [2024-10-11 17:07:21,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983339391] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:21,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:21,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:07:21,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687538860] [2024-10-11 17:07:21,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:21,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:07:21,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:21,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:07:21,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:07:21,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 240 [2024-10-11 17:07:21,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 233 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:21,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:21,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 240 [2024-10-11 17:07:21,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:21,477 INFO L124 PetriNetUnfolderBase]: 16/368 cut-off events. [2024-10-11 17:07:21,478 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:21,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 368 events. 16/368 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 773 event pairs, 16 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 288. Up to 47 conditions per place. [2024-10-11 17:07:21,480 INFO L140 encePairwiseOnDemand]: 237/240 looper letters, 14 selfloop transitions, 2 changer transitions 0/232 dead transitions. [2024-10-11 17:07:21,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 232 transitions, 528 flow [2024-10-11 17:07:21,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:07:21,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:07:21,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 686 transitions. [2024-10-11 17:07:21,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9527777777777777 [2024-10-11 17:07:21,482 INFO L175 Difference]: Start difference. First operand has 241 places, 233 transitions, 498 flow. Second operand 3 states and 686 transitions. [2024-10-11 17:07:21,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 232 transitions, 528 flow [2024-10-11 17:07:21,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 232 transitions, 498 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:21,487 INFO L231 Difference]: Finished difference. Result has 237 places, 232 transitions, 470 flow [2024-10-11 17:07:21,487 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=470, PETRI_PLACES=237, PETRI_TRANSITIONS=232} [2024-10-11 17:07:21,488 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -6 predicate places. [2024-10-11 17:07:21,488 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 232 transitions, 470 flow [2024-10-11 17:07:21,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:21,489 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:21,489 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:21,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:07:21,489 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:07:21,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:21,490 INFO L85 PathProgramCache]: Analyzing trace with hash 296367235, now seen corresponding path program 1 times [2024-10-11 17:07:21,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:21,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626197367] [2024-10-11 17:07:21,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:21,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:21,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:21,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:21,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626197367] [2024-10-11 17:07:21,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626197367] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:21,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:21,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:07:21,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142055899] [2024-10-11 17:07:21,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:21,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:07:21,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:21,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:07:21,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:07:21,556 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 240 [2024-10-11 17:07:21,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 232 transitions, 470 flow. Second operand has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:21,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:21,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 240 [2024-10-11 17:07:21,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:21,611 INFO L124 PetriNetUnfolderBase]: 24/445 cut-off events. [2024-10-11 17:07:21,611 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:07:21,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 516 conditions, 445 events. 24/445 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1219 event pairs, 24 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 455. Up to 63 conditions per place. [2024-10-11 17:07:21,613 INFO L140 encePairwiseOnDemand]: 234/240 looper letters, 15 selfloop transitions, 1 changer transitions 0/227 dead transitions. [2024-10-11 17:07:21,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 227 transitions, 492 flow [2024-10-11 17:07:21,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:07:21,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:07:21,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 678 transitions. [2024-10-11 17:07:21,616 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9416666666666667 [2024-10-11 17:07:21,616 INFO L175 Difference]: Start difference. First operand has 237 places, 232 transitions, 470 flow. Second operand 3 states and 678 transitions. [2024-10-11 17:07:21,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 227 transitions, 492 flow [2024-10-11 17:07:21,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 227 transitions, 488 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:07:21,620 INFO L231 Difference]: Finished difference. Result has 232 places, 227 transitions, 458 flow [2024-10-11 17:07:21,620 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=458, PETRI_PLACES=232, PETRI_TRANSITIONS=227} [2024-10-11 17:07:21,621 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -11 predicate places. [2024-10-11 17:07:21,621 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 227 transitions, 458 flow [2024-10-11 17:07:21,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:21,622 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:21,622 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:21,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:07:21,623 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:07:21,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:21,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1505942631, now seen corresponding path program 1 times [2024-10-11 17:07:21,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:21,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929795608] [2024-10-11 17:07:21,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:21,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:22,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:22,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:22,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929795608] [2024-10-11 17:07:22,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929795608] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:22,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:22,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:22,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900625292] [2024-10-11 17:07:22,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:22,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:22,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:22,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:22,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:22,466 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 240 [2024-10-11 17:07:22,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 227 transitions, 458 flow. Second operand has 6 states, 6 states have (on average 172.16666666666666) internal successors, (1033), 6 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:22,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:22,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 240 [2024-10-11 17:07:22,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:22,621 INFO L124 PetriNetUnfolderBase]: 288/1198 cut-off events. [2024-10-11 17:07:22,622 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:22,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1851 conditions, 1198 events. 288/1198 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6404 event pairs, 288 based on Foata normal form. 0/1137 useless extension candidates. Maximal degree in co-relation 1780. Up to 643 conditions per place. [2024-10-11 17:07:22,628 INFO L140 encePairwiseOnDemand]: 234/240 looper letters, 66 selfloop transitions, 5 changer transitions 0/226 dead transitions. [2024-10-11 17:07:22,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 226 transitions, 598 flow [2024-10-11 17:07:22,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:22,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:22,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1080 transitions. [2024-10-11 17:07:22,631 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-10-11 17:07:22,631 INFO L175 Difference]: Start difference. First operand has 232 places, 227 transitions, 458 flow. Second operand 6 states and 1080 transitions. [2024-10-11 17:07:22,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 226 transitions, 598 flow [2024-10-11 17:07:22,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 226 transitions, 597 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:07:22,636 INFO L231 Difference]: Finished difference. Result has 235 places, 226 transitions, 465 flow [2024-10-11 17:07:22,636 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=465, PETRI_PLACES=235, PETRI_TRANSITIONS=226} [2024-10-11 17:07:22,637 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -8 predicate places. [2024-10-11 17:07:22,637 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 226 transitions, 465 flow [2024-10-11 17:07:22,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 172.16666666666666) internal successors, (1033), 6 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:22,638 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:22,638 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:22,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 17:07:22,639 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:07:22,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:22,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1196565690, now seen corresponding path program 1 times [2024-10-11 17:07:22,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:22,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789798492] [2024-10-11 17:07:22,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:22,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:22,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:22,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:22,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789798492] [2024-10-11 17:07:22,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789798492] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:22,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:22,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:07:22,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224663593] [2024-10-11 17:07:22,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:22,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:07:22,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:22,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:07:22,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:07:22,716 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 240 [2024-10-11 17:07:22,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 226 transitions, 465 flow. Second operand has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:22,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:22,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 240 [2024-10-11 17:07:22,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:22,750 INFO L124 PetriNetUnfolderBase]: 6/289 cut-off events. [2024-10-11 17:07:22,751 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:22,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 289 events. 6/289 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 397 event pairs, 6 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 263. Up to 23 conditions per place. [2024-10-11 17:07:22,752 INFO L140 encePairwiseOnDemand]: 237/240 looper letters, 10 selfloop transitions, 2 changer transitions 0/225 dead transitions. [2024-10-11 17:07:22,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 225 transitions, 487 flow [2024-10-11 17:07:22,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:07:22,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:07:22,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 694 transitions. [2024-10-11 17:07:22,754 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9638888888888889 [2024-10-11 17:07:22,754 INFO L175 Difference]: Start difference. First operand has 235 places, 226 transitions, 465 flow. Second operand 3 states and 694 transitions. [2024-10-11 17:07:22,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 225 transitions, 487 flow [2024-10-11 17:07:22,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 225 transitions, 477 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:22,758 INFO L231 Difference]: Finished difference. Result has 231 places, 225 transitions, 457 flow [2024-10-11 17:07:22,758 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=457, PETRI_PLACES=231, PETRI_TRANSITIONS=225} [2024-10-11 17:07:22,759 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -12 predicate places. [2024-10-11 17:07:22,759 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 225 transitions, 457 flow [2024-10-11 17:07:22,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:22,760 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:22,760 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:22,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 17:07:22,760 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:07:22,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:22,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1416804218, now seen corresponding path program 1 times [2024-10-11 17:07:22,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:22,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554803923] [2024-10-11 17:07:22,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:22,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:22,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:22,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:22,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554803923] [2024-10-11 17:07:22,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554803923] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:22,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:22,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:07:22,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671765236] [2024-10-11 17:07:22,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:22,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:07:22,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:22,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:07:22,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:07:22,829 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 240 [2024-10-11 17:07:22,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 225 transitions, 457 flow. Second operand has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:22,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:22,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 240 [2024-10-11 17:07:22,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:22,861 INFO L124 PetriNetUnfolderBase]: 4/286 cut-off events. [2024-10-11 17:07:22,861 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:07:22,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 286 events. 4/286 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 261 event pairs, 4 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 250. Up to 15 conditions per place. [2024-10-11 17:07:22,862 INFO L140 encePairwiseOnDemand]: 238/240 looper letters, 7 selfloop transitions, 1 changer transitions 0/224 dead transitions. [2024-10-11 17:07:22,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 224 transitions, 471 flow [2024-10-11 17:07:22,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:07:22,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:07:22,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 702 transitions. [2024-10-11 17:07:22,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.975 [2024-10-11 17:07:22,865 INFO L175 Difference]: Start difference. First operand has 231 places, 225 transitions, 457 flow. Second operand 3 states and 702 transitions. [2024-10-11 17:07:22,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 224 transitions, 471 flow [2024-10-11 17:07:22,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 224 transitions, 467 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:07:22,868 INFO L231 Difference]: Finished difference. Result has 230 places, 224 transitions, 453 flow [2024-10-11 17:07:22,869 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=453, PETRI_PLACES=230, PETRI_TRANSITIONS=224} [2024-10-11 17:07:22,869 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -13 predicate places. [2024-10-11 17:07:22,869 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 224 transitions, 453 flow [2024-10-11 17:07:22,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:22,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:22,870 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:22,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:07:22,871 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:07:22,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:22,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1164812758, now seen corresponding path program 1 times [2024-10-11 17:07:22,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:22,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402625808] [2024-10-11 17:07:22,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:22,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:23,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:23,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:23,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402625808] [2024-10-11 17:07:23,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402625808] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:23,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:23,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:23,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600742976] [2024-10-11 17:07:23,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:23,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:23,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:23,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:23,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:23,792 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 240 [2024-10-11 17:07:23,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 224 transitions, 453 flow. Second operand has 6 states, 6 states have (on average 181.33333333333334) internal successors, (1088), 6 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:23,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:23,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 240 [2024-10-11 17:07:23,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:24,277 INFO L124 PetriNetUnfolderBase]: 316/1522 cut-off events. [2024-10-11 17:07:24,277 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:24,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2262 conditions, 1522 events. 316/1522 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 9251 event pairs, 36 based on Foata normal form. 0/1432 useless extension candidates. Maximal degree in co-relation 2192. Up to 388 conditions per place. [2024-10-11 17:07:24,284 INFO L140 encePairwiseOnDemand]: 212/240 looper letters, 107 selfloop transitions, 70 changer transitions 0/336 dead transitions. [2024-10-11 17:07:24,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 336 transitions, 1031 flow [2024-10-11 17:07:24,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:24,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:24,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1229 transitions. [2024-10-11 17:07:24,288 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8534722222222222 [2024-10-11 17:07:24,288 INFO L175 Difference]: Start difference. First operand has 230 places, 224 transitions, 453 flow. Second operand 6 states and 1229 transitions. [2024-10-11 17:07:24,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 336 transitions, 1031 flow [2024-10-11 17:07:24,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 336 transitions, 1030 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:07:24,296 INFO L231 Difference]: Finished difference. Result has 238 places, 294 transitions, 930 flow [2024-10-11 17:07:24,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=930, PETRI_PLACES=238, PETRI_TRANSITIONS=294} [2024-10-11 17:07:24,297 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -5 predicate places. [2024-10-11 17:07:24,297 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 294 transitions, 930 flow [2024-10-11 17:07:24,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.33333333333334) internal successors, (1088), 6 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:24,298 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:24,298 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:24,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:07:24,299 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:07:24,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:24,299 INFO L85 PathProgramCache]: Analyzing trace with hash -420518204, now seen corresponding path program 1 times [2024-10-11 17:07:24,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:24,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019777084] [2024-10-11 17:07:24,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:24,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:24,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:24,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:24,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019777084] [2024-10-11 17:07:24,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019777084] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:24,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:24,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:24,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161278230] [2024-10-11 17:07:24,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:24,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:24,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:24,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:24,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:25,183 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 240 [2024-10-11 17:07:25,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 294 transitions, 930 flow. Second operand has 6 states, 6 states have (on average 182.16666666666666) internal successors, (1093), 6 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:25,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:25,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 240 [2024-10-11 17:07:25,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:25,578 INFO L124 PetriNetUnfolderBase]: 588/2293 cut-off events. [2024-10-11 17:07:25,578 INFO L125 PetriNetUnfolderBase]: For 602/608 co-relation queries the response was YES. [2024-10-11 17:07:25,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4691 conditions, 2293 events. 588/2293 cut-off events. For 602/608 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 15197 event pairs, 222 based on Foata normal form. 0/2182 useless extension candidates. Maximal degree in co-relation 4619. Up to 1090 conditions per place. [2024-10-11 17:07:25,590 INFO L140 encePairwiseOnDemand]: 225/240 looper letters, 114 selfloop transitions, 48 changer transitions 0/345 dead transitions. [2024-10-11 17:07:25,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 345 transitions, 1426 flow [2024-10-11 17:07:25,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:25,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:25,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1166 transitions. [2024-10-11 17:07:25,594 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8097222222222222 [2024-10-11 17:07:25,594 INFO L175 Difference]: Start difference. First operand has 238 places, 294 transitions, 930 flow. Second operand 6 states and 1166 transitions. [2024-10-11 17:07:25,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 345 transitions, 1426 flow [2024-10-11 17:07:25,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 345 transitions, 1426 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:07:25,606 INFO L231 Difference]: Finished difference. Result has 248 places, 337 transitions, 1318 flow [2024-10-11 17:07:25,606 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1318, PETRI_PLACES=248, PETRI_TRANSITIONS=337} [2024-10-11 17:07:25,607 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 5 predicate places. [2024-10-11 17:07:25,608 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 337 transitions, 1318 flow [2024-10-11 17:07:25,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.16666666666666) internal successors, (1093), 6 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:25,609 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:25,609 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:25,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 17:07:25,609 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:07:25,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:25,611 INFO L85 PathProgramCache]: Analyzing trace with hash 678966440, now seen corresponding path program 1 times [2024-10-11 17:07:25,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:25,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175069477] [2024-10-11 17:07:25,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:25,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:26,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:26,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:26,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175069477] [2024-10-11 17:07:26,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175069477] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:26,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:26,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:26,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563516938] [2024-10-11 17:07:26,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:26,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:26,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:26,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:26,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:26,537 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 240 [2024-10-11 17:07:26,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 337 transitions, 1318 flow. Second operand has 6 states, 6 states have (on average 187.33333333333334) internal successors, (1124), 6 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:26,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:26,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 240 [2024-10-11 17:07:26,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:27,168 INFO L124 PetriNetUnfolderBase]: 754/2823 cut-off events. [2024-10-11 17:07:27,169 INFO L125 PetriNetUnfolderBase]: For 1640/1696 co-relation queries the response was YES. [2024-10-11 17:07:27,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6590 conditions, 2823 events. 754/2823 cut-off events. For 1640/1696 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 19722 event pairs, 86 based on Foata normal form. 0/2729 useless extension candidates. Maximal degree in co-relation 6511. Up to 1017 conditions per place. [2024-10-11 17:07:27,189 INFO L140 encePairwiseOnDemand]: 217/240 looper letters, 136 selfloop transitions, 136 changer transitions 4/477 dead transitions. [2024-10-11 17:07:27,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 477 transitions, 2626 flow [2024-10-11 17:07:27,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:27,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:27,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1224 transitions. [2024-10-11 17:07:27,192 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.85 [2024-10-11 17:07:27,192 INFO L175 Difference]: Start difference. First operand has 248 places, 337 transitions, 1318 flow. Second operand 6 states and 1224 transitions. [2024-10-11 17:07:27,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 477 transitions, 2626 flow [2024-10-11 17:07:27,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 477 transitions, 2608 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-11 17:07:27,210 INFO L231 Difference]: Finished difference. Result has 258 places, 468 transitions, 2666 flow [2024-10-11 17:07:27,210 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=1300, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2666, PETRI_PLACES=258, PETRI_TRANSITIONS=468} [2024-10-11 17:07:27,211 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 15 predicate places. [2024-10-11 17:07:27,211 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 468 transitions, 2666 flow [2024-10-11 17:07:27,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.33333333333334) internal successors, (1124), 6 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:27,212 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:27,212 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:27,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 17:07:27,212 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:07:27,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:27,213 INFO L85 PathProgramCache]: Analyzing trace with hash -365900599, now seen corresponding path program 1 times [2024-10-11 17:07:27,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:27,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826242988] [2024-10-11 17:07:27,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:27,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:27,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:27,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:27,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826242988] [2024-10-11 17:07:27,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826242988] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:27,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:27,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:27,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653657825] [2024-10-11 17:07:27,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:27,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:27,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:27,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:27,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:28,024 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 240 [2024-10-11 17:07:28,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 468 transitions, 2666 flow. Second operand has 6 states, 6 states have (on average 182.16666666666666) internal successors, (1093), 6 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:28,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:28,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 240 [2024-10-11 17:07:28,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:28,585 INFO L124 PetriNetUnfolderBase]: 968/3386 cut-off events. [2024-10-11 17:07:28,585 INFO L125 PetriNetUnfolderBase]: For 3817/3888 co-relation queries the response was YES. [2024-10-11 17:07:28,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9627 conditions, 3386 events. 968/3386 cut-off events. For 3817/3888 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 24388 event pairs, 207 based on Foata normal form. 0/3298 useless extension candidates. Maximal degree in co-relation 9545. Up to 1565 conditions per place. [2024-10-11 17:07:28,615 INFO L140 encePairwiseOnDemand]: 225/240 looper letters, 239 selfloop transitions, 62 changer transitions 0/525 dead transitions. [2024-10-11 17:07:28,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 525 transitions, 3610 flow [2024-10-11 17:07:28,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:28,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:28,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1166 transitions. [2024-10-11 17:07:28,618 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8097222222222222 [2024-10-11 17:07:28,618 INFO L175 Difference]: Start difference. First operand has 258 places, 468 transitions, 2666 flow. Second operand 6 states and 1166 transitions. [2024-10-11 17:07:28,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 525 transitions, 3610 flow [2024-10-11 17:07:28,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 525 transitions, 3574 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-10-11 17:07:28,652 INFO L231 Difference]: Finished difference. Result has 268 places, 517 transitions, 3256 flow [2024-10-11 17:07:28,653 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=2630, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3256, PETRI_PLACES=268, PETRI_TRANSITIONS=517} [2024-10-11 17:07:28,654 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 25 predicate places. [2024-10-11 17:07:28,654 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 517 transitions, 3256 flow [2024-10-11 17:07:28,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.16666666666666) internal successors, (1093), 6 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:28,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:28,656 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:28,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 17:07:28,656 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:07:28,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:28,657 INFO L85 PathProgramCache]: Analyzing trace with hash 33238092, now seen corresponding path program 1 times [2024-10-11 17:07:28,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:28,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822729317] [2024-10-11 17:07:28,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:28,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:29,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:29,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:29,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822729317] [2024-10-11 17:07:29,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822729317] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:29,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:29,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:07:29,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743848495] [2024-10-11 17:07:29,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:29,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:07:29,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:29,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:07:29,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:07:31,072 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 240 [2024-10-11 17:07:31,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 517 transitions, 3256 flow. Second operand has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:31,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:31,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 240 [2024-10-11 17:07:31,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:32,771 INFO L124 PetriNetUnfolderBase]: 1524/5131 cut-off events. [2024-10-11 17:07:32,771 INFO L125 PetriNetUnfolderBase]: For 8793/8894 co-relation queries the response was YES. [2024-10-11 17:07:32,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16430 conditions, 5131 events. 1524/5131 cut-off events. For 8793/8894 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 41536 event pairs, 111 based on Foata normal form. 47/5076 useless extension candidates. Maximal degree in co-relation 16338. Up to 1002 conditions per place. [2024-10-11 17:07:32,816 INFO L140 encePairwiseOnDemand]: 211/240 looper letters, 478 selfloop transitions, 172 changer transitions 0/843 dead transitions. [2024-10-11 17:07:32,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 843 transitions, 7206 flow [2024-10-11 17:07:32,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 17:07:32,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-11 17:07:32,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3314 transitions. [2024-10-11 17:07:32,826 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7267543859649123 [2024-10-11 17:07:32,827 INFO L175 Difference]: Start difference. First operand has 268 places, 517 transitions, 3256 flow. Second operand 19 states and 3314 transitions. [2024-10-11 17:07:32,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 843 transitions, 7206 flow [2024-10-11 17:07:32,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 843 transitions, 7024 flow, removed 91 selfloop flow, removed 0 redundant places. [2024-10-11 17:07:32,885 INFO L231 Difference]: Finished difference. Result has 295 places, 640 transitions, 4992 flow [2024-10-11 17:07:32,886 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=3144, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4992, PETRI_PLACES=295, PETRI_TRANSITIONS=640} [2024-10-11 17:07:32,886 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 52 predicate places. [2024-10-11 17:07:32,887 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 640 transitions, 4992 flow [2024-10-11 17:07:32,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:32,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:32,888 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:32,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 17:07:32,888 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:07:32,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:32,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1740036200, now seen corresponding path program 2 times [2024-10-11 17:07:32,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:32,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337804009] [2024-10-11 17:07:32,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:32,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:33,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:33,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:33,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337804009] [2024-10-11 17:07:33,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337804009] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:33,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:33,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:07:33,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178843449] [2024-10-11 17:07:33,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:33,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:07:33,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:33,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:07:33,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:07:34,833 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 240 [2024-10-11 17:07:34,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 640 transitions, 4992 flow. Second operand has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:34,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:34,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 240 [2024-10-11 17:07:34,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:36,465 INFO L124 PetriNetUnfolderBase]: 2138/7193 cut-off events. [2024-10-11 17:07:36,465 INFO L125 PetriNetUnfolderBase]: For 17382/17602 co-relation queries the response was YES. [2024-10-11 17:07:36,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24652 conditions, 7193 events. 2138/7193 cut-off events. For 17382/17602 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 65467 event pairs, 198 based on Foata normal form. 57/7126 useless extension candidates. Maximal degree in co-relation 24547. Up to 2162 conditions per place. [2024-10-11 17:07:36,524 INFO L140 encePairwiseOnDemand]: 207/240 looper letters, 458 selfloop transitions, 189 changer transitions 1/841 dead transitions. [2024-10-11 17:07:36,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 841 transitions, 8174 flow [2024-10-11 17:07:36,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 17:07:36,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 17:07:36,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2614 transitions. [2024-10-11 17:07:36,531 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7261111111111112 [2024-10-11 17:07:36,531 INFO L175 Difference]: Start difference. First operand has 295 places, 640 transitions, 4992 flow. Second operand 15 states and 2614 transitions. [2024-10-11 17:07:36,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 841 transitions, 8174 flow [2024-10-11 17:07:36,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 841 transitions, 8119 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:36,628 INFO L231 Difference]: Finished difference. Result has 314 places, 736 transitions, 7002 flow [2024-10-11 17:07:36,629 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=4951, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7002, PETRI_PLACES=314, PETRI_TRANSITIONS=736} [2024-10-11 17:07:36,630 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 71 predicate places. [2024-10-11 17:07:36,630 INFO L471 AbstractCegarLoop]: Abstraction has has 314 places, 736 transitions, 7002 flow [2024-10-11 17:07:36,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:36,631 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:36,631 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:36,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 17:07:36,632 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:07:36,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:36,632 INFO L85 PathProgramCache]: Analyzing trace with hash 2011476306, now seen corresponding path program 3 times [2024-10-11 17:07:36,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:36,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292338436] [2024-10-11 17:07:36,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:36,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:37,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:37,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:37,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292338436] [2024-10-11 17:07:37,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292338436] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:37,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:37,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:07:37,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048767031] [2024-10-11 17:07:37,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:37,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:07:37,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:37,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:07:37,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:07:38,809 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 240 [2024-10-11 17:07:38,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 736 transitions, 7002 flow. Second operand has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:38,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:38,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 240 [2024-10-11 17:07:38,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:41,611 INFO L124 PetriNetUnfolderBase]: 3213/10760 cut-off events. [2024-10-11 17:07:41,611 INFO L125 PetriNetUnfolderBase]: For 35505/35856 co-relation queries the response was YES. [2024-10-11 17:07:41,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38860 conditions, 10760 events. 3213/10760 cut-off events. For 35505/35856 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 108684 event pairs, 300 based on Foata normal form. 116/10688 useless extension candidates. Maximal degree in co-relation 38744. Up to 2268 conditions per place. [2024-10-11 17:07:41,692 INFO L140 encePairwiseOnDemand]: 205/240 looper letters, 525 selfloop transitions, 374 changer transitions 2/1094 dead transitions. [2024-10-11 17:07:41,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 1094 transitions, 12605 flow [2024-10-11 17:07:41,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 17:07:41,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-11 17:07:41,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3353 transitions. [2024-10-11 17:07:41,699 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7353070175438596 [2024-10-11 17:07:41,700 INFO L175 Difference]: Start difference. First operand has 314 places, 736 transitions, 7002 flow. Second operand 19 states and 3353 transitions. [2024-10-11 17:07:41,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 1094 transitions, 12605 flow [2024-10-11 17:07:42,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 1094 transitions, 12570 flow, removed 15 selfloop flow, removed 3 redundant places. [2024-10-11 17:07:42,100 INFO L231 Difference]: Finished difference. Result has 344 places, 884 transitions, 10755 flow [2024-10-11 17:07:42,101 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=6971, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=736, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=237, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=10755, PETRI_PLACES=344, PETRI_TRANSITIONS=884} [2024-10-11 17:07:42,101 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 101 predicate places. [2024-10-11 17:07:42,102 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 884 transitions, 10755 flow [2024-10-11 17:07:42,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:42,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:42,103 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:42,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 17:07:42,103 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:07:42,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:42,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1782067446, now seen corresponding path program 4 times [2024-10-11 17:07:42,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:42,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682161299] [2024-10-11 17:07:42,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:42,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:43,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:43,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:43,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682161299] [2024-10-11 17:07:43,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682161299] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:43,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:43,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:07:43,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695773304] [2024-10-11 17:07:43,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:43,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:07:43,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:43,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:07:43,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:07:43,949 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 240 [2024-10-11 17:07:43,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 884 transitions, 10755 flow. Second operand has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:43,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:43,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 240 [2024-10-11 17:07:43,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:46,949 INFO L124 PetriNetUnfolderBase]: 3264/10890 cut-off events. [2024-10-11 17:07:46,949 INFO L125 PetriNetUnfolderBase]: For 53230/53665 co-relation queries the response was YES. [2024-10-11 17:07:46,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42543 conditions, 10890 events. 3264/10890 cut-off events. For 53230/53665 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 109680 event pairs, 285 based on Foata normal form. 133/10851 useless extension candidates. Maximal degree in co-relation 42411. Up to 2156 conditions per place. [2024-10-11 17:07:47,040 INFO L140 encePairwiseOnDemand]: 219/240 looper letters, 670 selfloop transitions, 215 changer transitions 0/1078 dead transitions. [2024-10-11 17:07:47,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 1078 transitions, 14449 flow [2024-10-11 17:07:47,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 17:07:47,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-11 17:07:47,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3289 transitions. [2024-10-11 17:07:47,045 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7212719298245615 [2024-10-11 17:07:47,046 INFO L175 Difference]: Start difference. First operand has 344 places, 884 transitions, 10755 flow. Second operand 19 states and 3289 transitions. [2024-10-11 17:07:47,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 1078 transitions, 14449 flow [2024-10-11 17:07:47,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 1078 transitions, 14358 flow, removed 43 selfloop flow, removed 3 redundant places. [2024-10-11 17:07:47,365 INFO L231 Difference]: Finished difference. Result has 368 places, 945 transitions, 12283 flow [2024-10-11 17:07:47,366 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=10664, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=884, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=688, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=12283, PETRI_PLACES=368, PETRI_TRANSITIONS=945} [2024-10-11 17:07:47,366 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 125 predicate places. [2024-10-11 17:07:47,366 INFO L471 AbstractCegarLoop]: Abstraction has has 368 places, 945 transitions, 12283 flow [2024-10-11 17:07:47,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:47,367 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:47,367 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:47,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 17:07:47,368 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:07:47,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:47,368 INFO L85 PathProgramCache]: Analyzing trace with hash 225848600, now seen corresponding path program 5 times [2024-10-11 17:07:47,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:47,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911671449] [2024-10-11 17:07:47,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:47,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:48,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:48,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:48,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911671449] [2024-10-11 17:07:48,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911671449] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:48,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:48,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:07:48,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480967809] [2024-10-11 17:07:48,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:48,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:07:48,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:48,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:07:48,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:07:49,447 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 240 [2024-10-11 17:07:49,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 945 transitions, 12283 flow. Second operand has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:49,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:49,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 240 [2024-10-11 17:07:49,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:53,695 INFO L124 PetriNetUnfolderBase]: 4447/14652 cut-off events. [2024-10-11 17:07:53,695 INFO L125 PetriNetUnfolderBase]: For 82538/83171 co-relation queries the response was YES. [2024-10-11 17:07:53,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58255 conditions, 14652 events. 4447/14652 cut-off events. For 82538/83171 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 158568 event pairs, 382 based on Foata normal form. 176/14574 useless extension candidates. Maximal degree in co-relation 58113. Up to 3117 conditions per place. [2024-10-11 17:07:53,833 INFO L140 encePairwiseOnDemand]: 207/240 looper letters, 639 selfloop transitions, 413 changer transitions 3/1248 dead transitions. [2024-10-11 17:07:53,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 1248 transitions, 18249 flow [2024-10-11 17:07:53,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 17:07:53,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-10-11 17:07:53,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3528 transitions. [2024-10-11 17:07:53,840 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.735 [2024-10-11 17:07:53,840 INFO L175 Difference]: Start difference. First operand has 368 places, 945 transitions, 12283 flow. Second operand 20 states and 3528 transitions. [2024-10-11 17:07:53,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 1248 transitions, 18249 flow [2024-10-11 17:07:54,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 1248 transitions, 18068 flow, removed 66 selfloop flow, removed 9 redundant places. [2024-10-11 17:07:54,231 INFO L231 Difference]: Finished difference. Result has 389 places, 1060 transitions, 16157 flow [2024-10-11 17:07:54,232 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=12108, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=945, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=298, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=536, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=16157, PETRI_PLACES=389, PETRI_TRANSITIONS=1060} [2024-10-11 17:07:54,233 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 146 predicate places. [2024-10-11 17:07:54,233 INFO L471 AbstractCegarLoop]: Abstraction has has 389 places, 1060 transitions, 16157 flow [2024-10-11 17:07:54,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:54,233 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:54,234 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:54,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 17:07:54,234 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:07:54,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:54,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1938151713, now seen corresponding path program 1 times [2024-10-11 17:07:54,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:54,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239379039] [2024-10-11 17:07:54,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:54,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:55,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:55,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:55,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239379039] [2024-10-11 17:07:55,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239379039] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:55,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:55,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:07:55,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617438181] [2024-10-11 17:07:55,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:55,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:07:55,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:55,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:07:55,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:07:56,793 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 240 [2024-10-11 17:07:56,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 1060 transitions, 16157 flow. Second operand has 13 states, 13 states have (on average 168.69230769230768) internal successors, (2193), 13 states have internal predecessors, (2193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:56,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:56,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 240 [2024-10-11 17:07:56,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:01,340 INFO L124 PetriNetUnfolderBase]: 5309/16661 cut-off events. [2024-10-11 17:08:01,341 INFO L125 PetriNetUnfolderBase]: For 101663/102170 co-relation queries the response was YES. [2024-10-11 17:08:01,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69922 conditions, 16661 events. 5309/16661 cut-off events. For 101663/102170 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 179044 event pairs, 824 based on Foata normal form. 102/16497 useless extension candidates. Maximal degree in co-relation 69769. Up to 3950 conditions per place. [2024-10-11 17:08:01,669 INFO L140 encePairwiseOnDemand]: 219/240 looper letters, 580 selfloop transitions, 241 changer transitions 0/1214 dead transitions. [2024-10-11 17:08:01,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 1214 transitions, 19689 flow [2024-10-11 17:08:01,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 17:08:01,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-11 17:08:01,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2325 transitions. [2024-10-11 17:08:01,672 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7451923076923077 [2024-10-11 17:08:01,672 INFO L175 Difference]: Start difference. First operand has 389 places, 1060 transitions, 16157 flow. Second operand 13 states and 2325 transitions. [2024-10-11 17:08:01,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 1214 transitions, 19689 flow [2024-10-11 17:08:02,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 1214 transitions, 19620 flow, removed 23 selfloop flow, removed 7 redundant places. [2024-10-11 17:08:02,181 INFO L231 Difference]: Finished difference. Result has 399 places, 1078 transitions, 17259 flow [2024-10-11 17:08:02,182 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=16112, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1060, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=223, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=822, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=17259, PETRI_PLACES=399, PETRI_TRANSITIONS=1078} [2024-10-11 17:08:02,182 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 156 predicate places. [2024-10-11 17:08:02,183 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 1078 transitions, 17259 flow [2024-10-11 17:08:02,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 168.69230769230768) internal successors, (2193), 13 states have internal predecessors, (2193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:02,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:02,184 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:02,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 17:08:02,184 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:08:02,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:02,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1493437770, now seen corresponding path program 6 times [2024-10-11 17:08:02,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:02,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390090240] [2024-10-11 17:08:02,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:02,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:03,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:03,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:03,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390090240] [2024-10-11 17:08:03,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390090240] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:03,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:03,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:08:03,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53970197] [2024-10-11 17:08:03,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:03,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:08:03,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:03,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:08:03,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:08:04,369 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 240 [2024-10-11 17:08:04,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 1078 transitions, 17259 flow. Second operand has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:04,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:04,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 240 [2024-10-11 17:08:04,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:09,104 INFO L124 PetriNetUnfolderBase]: 5021/16520 cut-off events. [2024-10-11 17:08:09,105 INFO L125 PetriNetUnfolderBase]: For 131274/132301 co-relation queries the response was YES. [2024-10-11 17:08:09,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73367 conditions, 16520 events. 5021/16520 cut-off events. For 131274/132301 co-relation queries the response was YES. Maximal size of possible extension queue 571. Compared 183994 event pairs, 400 based on Foata normal form. 317/16572 useless extension candidates. Maximal degree in co-relation 73209. Up to 3311 conditions per place. [2024-10-11 17:08:09,494 INFO L140 encePairwiseOnDemand]: 207/240 looper letters, 706 selfloop transitions, 440 changer transitions 3/1348 dead transitions. [2024-10-11 17:08:09,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 1348 transitions, 23490 flow [2024-10-11 17:08:09,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 17:08:09,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-11 17:08:09,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3696 transitions. [2024-10-11 17:08:09,500 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-10-11 17:08:09,500 INFO L175 Difference]: Start difference. First operand has 399 places, 1078 transitions, 17259 flow. Second operand 21 states and 3696 transitions. [2024-10-11 17:08:09,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 1348 transitions, 23490 flow [2024-10-11 17:08:10,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 1348 transitions, 23298 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-11 17:08:10,105 INFO L231 Difference]: Finished difference. Result has 419 places, 1158 transitions, 21034 flow [2024-10-11 17:08:10,106 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=17108, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1078, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=366, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=21034, PETRI_PLACES=419, PETRI_TRANSITIONS=1158} [2024-10-11 17:08:10,106 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 176 predicate places. [2024-10-11 17:08:10,106 INFO L471 AbstractCegarLoop]: Abstraction has has 419 places, 1158 transitions, 21034 flow [2024-10-11 17:08:10,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:10,107 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:10,108 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:10,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 17:08:10,108 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:08:10,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:10,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1877225190, now seen corresponding path program 7 times [2024-10-11 17:08:10,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:10,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332227607] [2024-10-11 17:08:10,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:10,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:11,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:11,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:11,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332227607] [2024-10-11 17:08:11,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332227607] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:11,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:11,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:08:11,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153682998] [2024-10-11 17:08:11,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:11,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:08:11,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:11,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:08:11,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:08:12,127 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 240 [2024-10-11 17:08:12,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 1158 transitions, 21034 flow. Second operand has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:12,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:12,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 240 [2024-10-11 17:08:12,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:17,404 INFO L124 PetriNetUnfolderBase]: 5383/17748 cut-off events. [2024-10-11 17:08:17,404 INFO L125 PetriNetUnfolderBase]: For 173637/174671 co-relation queries the response was YES. [2024-10-11 17:08:17,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81960 conditions, 17748 events. 5383/17748 cut-off events. For 173637/174671 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 201050 event pairs, 416 based on Foata normal form. 351/17810 useless extension candidates. Maximal degree in co-relation 81795. Up to 3564 conditions per place. [2024-10-11 17:08:17,582 INFO L140 encePairwiseOnDemand]: 211/240 looper letters, 672 selfloop transitions, 566 changer transitions 0/1437 dead transitions. [2024-10-11 17:08:17,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 1437 transitions, 27948 flow [2024-10-11 17:08:17,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 17:08:17,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-11 17:08:17,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3315 transitions. [2024-10-11 17:08:17,584 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7269736842105263 [2024-10-11 17:08:17,584 INFO L175 Difference]: Start difference. First operand has 419 places, 1158 transitions, 21034 flow. Second operand 19 states and 3315 transitions. [2024-10-11 17:08:17,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 1437 transitions, 27948 flow [2024-10-11 17:08:18,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 1437 transitions, 27879 flow, removed 7 selfloop flow, removed 12 redundant places. [2024-10-11 17:08:18,284 INFO L231 Difference]: Finished difference. Result has 433 places, 1252 transitions, 25264 flow [2024-10-11 17:08:18,285 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=20965, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=474, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=599, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=25264, PETRI_PLACES=433, PETRI_TRANSITIONS=1252} [2024-10-11 17:08:18,286 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 190 predicate places. [2024-10-11 17:08:18,286 INFO L471 AbstractCegarLoop]: Abstraction has has 433 places, 1252 transitions, 25264 flow [2024-10-11 17:08:18,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:18,287 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:18,287 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:18,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 17:08:18,287 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:08:18,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:18,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1469722600, now seen corresponding path program 8 times [2024-10-11 17:08:18,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:18,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608317863] [2024-10-11 17:08:18,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:18,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:19,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:19,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:19,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608317863] [2024-10-11 17:08:19,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608317863] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:19,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:19,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:08:19,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653602759] [2024-10-11 17:08:19,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:19,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:08:19,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:19,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:08:19,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:08:20,412 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 240 [2024-10-11 17:08:20,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 1252 transitions, 25264 flow. Second operand has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:20,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:20,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 240 [2024-10-11 17:08:20,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:26,955 INFO L124 PetriNetUnfolderBase]: 6105/20087 cut-off events. [2024-10-11 17:08:26,955 INFO L125 PetriNetUnfolderBase]: For 232809/233998 co-relation queries the response was YES. [2024-10-11 17:08:27,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96607 conditions, 20087 events. 6105/20087 cut-off events. For 232809/233998 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 233722 event pairs, 557 based on Foata normal form. 399/20154 useless extension candidates. Maximal degree in co-relation 96434. Up to 4014 conditions per place. [2024-10-11 17:08:27,201 INFO L140 encePairwiseOnDemand]: 208/240 looper letters, 831 selfloop transitions, 556 changer transitions 2/1588 dead transitions. [2024-10-11 17:08:27,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 1588 transitions, 33710 flow [2024-10-11 17:08:27,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 17:08:27,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-11 17:08:27,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3686 transitions. [2024-10-11 17:08:27,203 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7313492063492063 [2024-10-11 17:08:27,204 INFO L175 Difference]: Start difference. First operand has 433 places, 1252 transitions, 25264 flow. Second operand 21 states and 3686 transitions. [2024-10-11 17:08:27,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 1588 transitions, 33710 flow [2024-10-11 17:08:28,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 1588 transitions, 33541 flow, removed 60 selfloop flow, removed 9 redundant places. [2024-10-11 17:08:28,273 INFO L231 Difference]: Finished difference. Result has 453 places, 1365 transitions, 30656 flow [2024-10-11 17:08:28,274 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=25095, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=450, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=705, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=30656, PETRI_PLACES=453, PETRI_TRANSITIONS=1365} [2024-10-11 17:08:28,275 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 210 predicate places. [2024-10-11 17:08:28,275 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 1365 transitions, 30656 flow [2024-10-11 17:08:28,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:28,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:28,276 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:28,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 17:08:28,277 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 17:08:28,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:28,277 INFO L85 PathProgramCache]: Analyzing trace with hash -508116584, now seen corresponding path program 9 times [2024-10-11 17:08:28,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:28,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393943193] [2024-10-11 17:08:28,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:28,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:29,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:29,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:29,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393943193] [2024-10-11 17:08:29,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393943193] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:29,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:29,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:08:29,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260672831] [2024-10-11 17:08:29,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:29,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:08:29,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:29,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:08:29,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:08:30,204 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 240 [2024-10-11 17:08:30,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 1365 transitions, 30656 flow. Second operand has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:30,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:30,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 240 [2024-10-11 17:08:30,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand