./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/pthread/reorder_2.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/pthread/reorder_2.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 eaeb1d72262bd1e189945b98598b3acb68c08676109949c39074605b8c62cb69 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 16:45:04,210 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 16:45:04,284 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 16:45:04,289 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 16:45:04,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 16:45:04,319 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 16:45:04,320 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 16:45:04,320 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 16:45:04,321 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 16:45:04,321 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 16:45:04,322 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 16:45:04,322 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 16:45:04,323 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 16:45:04,324 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 16:45:04,324 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 16:45:04,325 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 16:45:04,325 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 16:45:04,326 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 16:45:04,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 16:45:04,326 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 16:45:04,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 16:45:04,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 16:45:04,328 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 16:45:04,328 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 16:45:04,328 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 16:45:04,329 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 16:45:04,329 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 16:45:04,329 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 16:45:04,330 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 16:45:04,330 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 16:45:04,330 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 16:45:04,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:45:04,331 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 16:45:04,331 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 16:45:04,331 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 16:45:04,332 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 16:45:04,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 16:45:04,332 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 16:45:04,332 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 16:45:04,333 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 16:45:04,333 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 16:45:04,333 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eaeb1d72262bd1e189945b98598b3acb68c08676109949c39074605b8c62cb69 [2024-10-11 16:45:04,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 16:45:04,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 16:45:04,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 16:45:04,651 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 16:45:04,651 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 16:45:04,653 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_2.i [2024-10-11 16:45:06,076 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 16:45:06,371 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 16:45:06,372 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_2.i [2024-10-11 16:45:06,395 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/66ade0f8e/9f0051e5e2ba4548a3ad21e600a0ef2f/FLAG7ae3fb130 [2024-10-11 16:45:06,409 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/66ade0f8e/9f0051e5e2ba4548a3ad21e600a0ef2f [2024-10-11 16:45:06,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 16:45:06,413 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 16:45:06,414 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 16:45:06,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 16:45:06,419 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 16:45:06,420 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:45:06" (1/1) ... [2024-10-11 16:45:06,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@542c5c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:06, skipping insertion in model container [2024-10-11 16:45:06,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:45:06" (1/1) ... [2024-10-11 16:45:06,473 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 16:45:07,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:45:07,178 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 16:45:07,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:45:07,347 INFO L204 MainTranslator]: Completed translation [2024-10-11 16:45:07,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:07 WrapperNode [2024-10-11 16:45:07,348 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 16:45:07,349 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 16:45:07,349 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 16:45:07,349 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 16:45:07,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:07" (1/1) ... [2024-10-11 16:45:07,385 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:07" (1/1) ... [2024-10-11 16:45:07,418 INFO L138 Inliner]: procedures = 372, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 212 [2024-10-11 16:45:07,422 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 16:45:07,422 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 16:45:07,422 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 16:45:07,422 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 16:45:07,431 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:07" (1/1) ... [2024-10-11 16:45:07,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:07" (1/1) ... [2024-10-11 16:45:07,437 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:07" (1/1) ... [2024-10-11 16:45:07,437 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:07" (1/1) ... [2024-10-11 16:45:07,452 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:07" (1/1) ... [2024-10-11 16:45:07,456 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:07" (1/1) ... [2024-10-11 16:45:07,459 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:07" (1/1) ... [2024-10-11 16:45:07,461 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:07" (1/1) ... [2024-10-11 16:45:07,464 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 16:45:07,466 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 16:45:07,466 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 16:45:07,466 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 16:45:07,467 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:07" (1/1) ... [2024-10-11 16:45:07,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:45:07,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:07,507 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 16:45:07,510 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 16:45:07,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 16:45:07,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 16:45:07,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 16:45:07,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 16:45:07,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 16:45:07,571 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-10-11 16:45:07,571 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-10-11 16:45:07,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 16:45:07,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 16:45:07,571 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-10-11 16:45:07,572 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-10-11 16:45:07,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 16:45:07,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 16:45:07,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 16:45:07,576 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 16:45:07,735 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 16:45:07,737 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 16:45:08,129 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 16:45:08,129 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 16:45:08,182 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 16:45:08,183 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-11 16:45:08,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:45:08 BoogieIcfgContainer [2024-10-11 16:45:08,184 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 16:45:08,187 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 16:45:08,188 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 16:45:08,191 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 16:45:08,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:45:06" (1/3) ... [2024-10-11 16:45:08,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9a851f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:45:08, skipping insertion in model container [2024-10-11 16:45:08,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:07" (2/3) ... [2024-10-11 16:45:08,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9a851f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:45:08, skipping insertion in model container [2024-10-11 16:45:08,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:45:08" (3/3) ... [2024-10-11 16:45:08,195 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2.i [2024-10-11 16:45:08,212 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 16:45:08,212 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-10-11 16:45:08,214 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 16:45:08,294 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-11 16:45:08,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 245 transitions, 510 flow [2024-10-11 16:45:08,485 INFO L124 PetriNetUnfolderBase]: 39/521 cut-off events. [2024-10-11 16:45:08,486 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-11 16:45:08,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 521 events. 39/521 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2077 event pairs, 0 based on Foata normal form. 0/422 useless extension candidates. Maximal degree in co-relation 277. Up to 8 conditions per place. [2024-10-11 16:45:08,501 INFO L82 GeneralOperation]: Start removeDead. Operand has 232 places, 245 transitions, 510 flow [2024-10-11 16:45:08,509 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 232 places, 245 transitions, 510 flow [2024-10-11 16:45:08,521 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:45:08,531 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;@5c49075, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:45:08,532 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-10-11 16:45:08,537 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:45:08,537 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-10-11 16:45:08,538 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:45:08,538 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:08,538 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:08,539 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:08,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:08,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1619514553, now seen corresponding path program 1 times [2024-10-11 16:45:08,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:08,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715551948] [2024-10-11 16:45:08,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:08,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:08,754 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 16:45:08,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:08,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715551948] [2024-10-11 16:45:08,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715551948] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:08,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:08,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:08,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660706877] [2024-10-11 16:45:08,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:08,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:08,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:08,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:08,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:08,858 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 245 [2024-10-11 16:45:08,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 245 transitions, 510 flow. Second operand has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 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 16:45:08,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:08,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 245 [2024-10-11 16:45:08,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:09,071 INFO L124 PetriNetUnfolderBase]: 63/811 cut-off events. [2024-10-11 16:45:09,071 INFO L125 PetriNetUnfolderBase]: For 74/126 co-relation queries the response was YES. [2024-10-11 16:45:09,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 971 conditions, 811 events. 63/811 cut-off events. For 74/126 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4183 event pairs, 50 based on Foata normal form. 67/749 useless extension candidates. Maximal degree in co-relation 575. Up to 128 conditions per place. [2024-10-11 16:45:09,081 INFO L140 encePairwiseOnDemand]: 224/245 looper letters, 18 selfloop transitions, 1 changer transitions 6/223 dead transitions. [2024-10-11 16:45:09,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 223 transitions, 504 flow [2024-10-11 16:45:09,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:09,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:09,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 654 transitions. [2024-10-11 16:45:09,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.889795918367347 [2024-10-11 16:45:09,107 INFO L175 Difference]: Start difference. First operand has 232 places, 245 transitions, 510 flow. Second operand 3 states and 654 transitions. [2024-10-11 16:45:09,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 223 transitions, 504 flow [2024-10-11 16:45:09,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 223 transitions, 504 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:45:09,120 INFO L231 Difference]: Finished difference. Result has 224 places, 217 transitions, 456 flow [2024-10-11 16:45:09,123 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=456, PETRI_PLACES=224, PETRI_TRANSITIONS=217} [2024-10-11 16:45:09,127 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -8 predicate places. [2024-10-11 16:45:09,127 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 217 transitions, 456 flow [2024-10-11 16:45:09,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 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 16:45:09,129 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:09,129 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] [2024-10-11 16:45:09,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 16:45:09,130 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:09,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:09,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1334590845, now seen corresponding path program 1 times [2024-10-11 16:45:09,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:09,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360772005] [2024-10-11 16:45:09,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:09,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:09,253 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 16:45:09,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:09,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360772005] [2024-10-11 16:45:09,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360772005] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:09,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:09,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:09,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546574849] [2024-10-11 16:45:09,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:09,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:09,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:09,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:09,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:09,272 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 245 [2024-10-11 16:45:09,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 217 transitions, 456 flow. Second operand has 3 states, 3 states have (on average 215.66666666666666) internal successors, (647), 3 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:09,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:09,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 245 [2024-10-11 16:45:09,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:09,551 INFO L124 PetriNetUnfolderBase]: 60/1400 cut-off events. [2024-10-11 16:45:09,551 INFO L125 PetriNetUnfolderBase]: For 166/342 co-relation queries the response was YES. [2024-10-11 16:45:09,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1567 conditions, 1400 events. 60/1400 cut-off events. For 166/342 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 8932 event pairs, 28 based on Foata normal form. 0/1185 useless extension candidates. Maximal degree in co-relation 754. Up to 51 conditions per place. [2024-10-11 16:45:09,560 INFO L140 encePairwiseOnDemand]: 243/245 looper letters, 21 selfloop transitions, 1 changer transitions 0/226 dead transitions. [2024-10-11 16:45:09,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 226 transitions, 536 flow [2024-10-11 16:45:09,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:09,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:09,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2024-10-11 16:45:09,564 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.908843537414966 [2024-10-11 16:45:09,564 INFO L175 Difference]: Start difference. First operand has 224 places, 217 transitions, 456 flow. Second operand 3 states and 668 transitions. [2024-10-11 16:45:09,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 226 transitions, 536 flow [2024-10-11 16:45:09,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 226 transitions, 535 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:09,575 INFO L231 Difference]: Finished difference. Result has 218 places, 216 transitions, 455 flow [2024-10-11 16:45:09,576 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=455, PETRI_PLACES=218, PETRI_TRANSITIONS=216} [2024-10-11 16:45:09,576 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -14 predicate places. [2024-10-11 16:45:09,577 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 216 transitions, 455 flow [2024-10-11 16:45:09,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.66666666666666) internal successors, (647), 3 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:09,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:09,578 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] [2024-10-11 16:45:09,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 16:45:09,578 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:09,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:09,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1577414619, now seen corresponding path program 1 times [2024-10-11 16:45:09,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:09,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436985090] [2024-10-11 16:45:09,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:09,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:09,654 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 16:45:09,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:09,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436985090] [2024-10-11 16:45:09,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436985090] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:09,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:09,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:09,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745402112] [2024-10-11 16:45:09,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:09,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:09,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:09,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:09,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:09,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 245 [2024-10-11 16:45:09,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 216 transitions, 455 flow. Second operand has 3 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 0 states have call successors, (0), 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 16:45:09,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:09,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 245 [2024-10-11 16:45:09,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:09,922 INFO L124 PetriNetUnfolderBase]: 232/1677 cut-off events. [2024-10-11 16:45:09,923 INFO L125 PetriNetUnfolderBase]: For 230/534 co-relation queries the response was YES. [2024-10-11 16:45:09,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2206 conditions, 1677 events. 232/1677 cut-off events. For 230/534 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11013 event pairs, 52 based on Foata normal form. 19/1489 useless extension candidates. Maximal degree in co-relation 1100. Up to 355 conditions per place. [2024-10-11 16:45:09,930 INFO L140 encePairwiseOnDemand]: 233/245 looper letters, 15 selfloop transitions, 1 changer transitions 24/220 dead transitions. [2024-10-11 16:45:09,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 220 transitions, 529 flow [2024-10-11 16:45:09,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:09,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:09,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 636 transitions. [2024-10-11 16:45:09,932 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8653061224489796 [2024-10-11 16:45:09,933 INFO L175 Difference]: Start difference. First operand has 218 places, 216 transitions, 455 flow. Second operand 3 states and 636 transitions. [2024-10-11 16:45:09,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 220 transitions, 529 flow [2024-10-11 16:45:09,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 220 transitions, 528 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:09,937 INFO L231 Difference]: Finished difference. Result has 213 places, 192 transitions, 408 flow [2024-10-11 16:45:09,938 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=213, PETRI_TRANSITIONS=192} [2024-10-11 16:45:09,938 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -19 predicate places. [2024-10-11 16:45:09,939 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 192 transitions, 408 flow [2024-10-11 16:45:09,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 0 states have call successors, (0), 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 16:45:09,939 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:09,940 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] [2024-10-11 16:45:09,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 16:45:09,940 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:09,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:09,941 INFO L85 PathProgramCache]: Analyzing trace with hash -2045685338, now seen corresponding path program 1 times [2024-10-11 16:45:09,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:09,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585800313] [2024-10-11 16:45:09,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:09,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:09,987 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 16:45:09,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:09,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585800313] [2024-10-11 16:45:09,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585800313] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:09,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:09,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:09,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839299516] [2024-10-11 16:45:09,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:09,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:09,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:09,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:09,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:10,010 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 245 [2024-10-11 16:45:10,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 192 transitions, 408 flow. Second operand has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 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 16:45:10,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:10,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 245 [2024-10-11 16:45:10,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:10,199 INFO L124 PetriNetUnfolderBase]: 184/1638 cut-off events. [2024-10-11 16:45:10,199 INFO L125 PetriNetUnfolderBase]: For 148/252 co-relation queries the response was YES. [2024-10-11 16:45:10,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2107 conditions, 1638 events. 184/1638 cut-off events. For 148/252 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11150 event pairs, 156 based on Foata normal form. 0/1438 useless extension candidates. Maximal degree in co-relation 1838. Up to 362 conditions per place. [2024-10-11 16:45:10,210 INFO L140 encePairwiseOnDemand]: 239/245 looper letters, 18 selfloop transitions, 2 changer transitions 0/189 dead transitions. [2024-10-11 16:45:10,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 189 transitions, 442 flow [2024-10-11 16:45:10,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:10,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:10,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 639 transitions. [2024-10-11 16:45:10,213 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8693877551020408 [2024-10-11 16:45:10,213 INFO L175 Difference]: Start difference. First operand has 213 places, 192 transitions, 408 flow. Second operand 3 states and 639 transitions. [2024-10-11 16:45:10,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 189 transitions, 442 flow [2024-10-11 16:45:10,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 189 transitions, 441 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:10,220 INFO L231 Difference]: Finished difference. Result has 193 places, 189 transitions, 409 flow [2024-10-11 16:45:10,221 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=409, PETRI_PLACES=193, PETRI_TRANSITIONS=189} [2024-10-11 16:45:10,223 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -39 predicate places. [2024-10-11 16:45:10,223 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 189 transitions, 409 flow [2024-10-11 16:45:10,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 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 16:45:10,225 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:10,225 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] [2024-10-11 16:45:10,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 16:45:10,226 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:10,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:10,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1950122769, now seen corresponding path program 1 times [2024-10-11 16:45:10,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:10,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134877130] [2024-10-11 16:45:10,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:10,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:10,295 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 16:45:10,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:10,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134877130] [2024-10-11 16:45:10,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134877130] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:10,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:10,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:10,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760882120] [2024-10-11 16:45:10,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:10,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:10,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:10,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:10,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:10,338 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 245 [2024-10-11 16:45:10,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 189 transitions, 409 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 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 16:45:10,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:10,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 245 [2024-10-11 16:45:10,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:10,514 INFO L124 PetriNetUnfolderBase]: 124/1385 cut-off events. [2024-10-11 16:45:10,514 INFO L125 PetriNetUnfolderBase]: For 148/252 co-relation queries the response was YES. [2024-10-11 16:45:10,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1736 conditions, 1385 events. 124/1385 cut-off events. For 148/252 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 8889 event pairs, 96 based on Foata normal form. 0/1196 useless extension candidates. Maximal degree in co-relation 868. Up to 250 conditions per place. [2024-10-11 16:45:10,522 INFO L140 encePairwiseOnDemand]: 242/245 looper letters, 17 selfloop transitions, 2 changer transitions 3/188 dead transitions. [2024-10-11 16:45:10,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 188 transitions, 447 flow [2024-10-11 16:45:10,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:10,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:10,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 642 transitions. [2024-10-11 16:45:10,524 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8734693877551021 [2024-10-11 16:45:10,524 INFO L175 Difference]: Start difference. First operand has 193 places, 189 transitions, 409 flow. Second operand 3 states and 642 transitions. [2024-10-11 16:45:10,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 188 transitions, 447 flow [2024-10-11 16:45:10,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 188 transitions, 447 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:45:10,529 INFO L231 Difference]: Finished difference. Result has 194 places, 185 transitions, 405 flow [2024-10-11 16:45:10,530 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=405, PETRI_PLACES=194, PETRI_TRANSITIONS=185} [2024-10-11 16:45:10,532 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -38 predicate places. [2024-10-11 16:45:10,532 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 185 transitions, 405 flow [2024-10-11 16:45:10,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 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 16:45:10,533 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:10,533 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] [2024-10-11 16:45:10,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 16:45:10,533 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:10,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:10,534 INFO L85 PathProgramCache]: Analyzing trace with hash 737887062, now seen corresponding path program 1 times [2024-10-11 16:45:10,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:10,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752676921] [2024-10-11 16:45:10,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:10,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:10,619 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 16:45:10,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:10,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752676921] [2024-10-11 16:45:10,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752676921] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:10,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:10,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:10,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855446942] [2024-10-11 16:45:10,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:10,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:10,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:10,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:10,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:10,631 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 245 [2024-10-11 16:45:10,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 185 transitions, 405 flow. Second operand has 3 states, 3 states have (on average 215.66666666666666) internal successors, (647), 3 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:10,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:10,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 245 [2024-10-11 16:45:10,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:10,801 INFO L124 PetriNetUnfolderBase]: 60/1200 cut-off events. [2024-10-11 16:45:10,802 INFO L125 PetriNetUnfolderBase]: For 166/342 co-relation queries the response was YES. [2024-10-11 16:45:10,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1393 conditions, 1200 events. 60/1200 cut-off events. For 166/342 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7114 event pairs, 28 based on Foata normal form. 0/1056 useless extension candidates. Maximal degree in co-relation 696. Up to 51 conditions per place. [2024-10-11 16:45:10,807 INFO L140 encePairwiseOnDemand]: 243/245 looper letters, 21 selfloop transitions, 1 changer transitions 0/194 dead transitions. [2024-10-11 16:45:10,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 194 transitions, 485 flow [2024-10-11 16:45:10,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:10,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:10,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2024-10-11 16:45:10,810 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.908843537414966 [2024-10-11 16:45:10,810 INFO L175 Difference]: Start difference. First operand has 194 places, 185 transitions, 405 flow. Second operand 3 states and 668 transitions. [2024-10-11 16:45:10,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 194 transitions, 485 flow [2024-10-11 16:45:10,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 194 transitions, 481 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:10,814 INFO L231 Difference]: Finished difference. Result has 190 places, 184 transitions, 401 flow [2024-10-11 16:45:10,814 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=401, PETRI_PLACES=190, PETRI_TRANSITIONS=184} [2024-10-11 16:45:10,815 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -42 predicate places. [2024-10-11 16:45:10,815 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 184 transitions, 401 flow [2024-10-11 16:45:10,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.66666666666666) internal successors, (647), 3 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:10,816 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:10,816 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] [2024-10-11 16:45:10,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 16:45:10,816 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:10,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:10,817 INFO L85 PathProgramCache]: Analyzing trace with hash 517699852, now seen corresponding path program 1 times [2024-10-11 16:45:10,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:10,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243341240] [2024-10-11 16:45:10,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:10,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:10,844 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 16:45:10,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:10,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243341240] [2024-10-11 16:45:10,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243341240] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:10,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:10,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:10,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675295761] [2024-10-11 16:45:10,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:10,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:10,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:10,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:10,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:10,880 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 245 [2024-10-11 16:45:10,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 184 transitions, 401 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 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 16:45:10,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:10,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 245 [2024-10-11 16:45:10,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:11,032 INFO L124 PetriNetUnfolderBase]: 120/1323 cut-off events. [2024-10-11 16:45:11,033 INFO L125 PetriNetUnfolderBase]: For 154/258 co-relation queries the response was YES. [2024-10-11 16:45:11,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1660 conditions, 1323 events. 120/1323 cut-off events. For 154/258 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8418 event pairs, 92 based on Foata normal form. 0/1140 useless extension candidates. Maximal degree in co-relation 835. Up to 234 conditions per place. [2024-10-11 16:45:11,041 INFO L140 encePairwiseOnDemand]: 242/245 looper letters, 18 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2024-10-11 16:45:11,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 183 transitions, 439 flow [2024-10-11 16:45:11,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:11,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:11,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 641 transitions. [2024-10-11 16:45:11,044 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8721088435374149 [2024-10-11 16:45:11,044 INFO L175 Difference]: Start difference. First operand has 190 places, 184 transitions, 401 flow. Second operand 3 states and 641 transitions. [2024-10-11 16:45:11,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 183 transitions, 439 flow [2024-10-11 16:45:11,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 183 transitions, 438 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:11,048 INFO L231 Difference]: Finished difference. Result has 190 places, 183 transitions, 402 flow [2024-10-11 16:45:11,048 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=190, PETRI_TRANSITIONS=183} [2024-10-11 16:45:11,049 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -42 predicate places. [2024-10-11 16:45:11,049 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 183 transitions, 402 flow [2024-10-11 16:45:11,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 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 16:45:11,051 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:11,051 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] [2024-10-11 16:45:11,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 16:45:11,051 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:11,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:11,052 INFO L85 PathProgramCache]: Analyzing trace with hash 36510914, now seen corresponding path program 1 times [2024-10-11 16:45:11,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:11,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398593639] [2024-10-11 16:45:11,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:11,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:11,094 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 16:45:11,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:11,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398593639] [2024-10-11 16:45:11,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398593639] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:11,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:11,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 16:45:11,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986835755] [2024-10-11 16:45:11,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:11,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:11,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:11,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:11,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:11,111 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 245 [2024-10-11 16:45:11,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 183 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 209.66666666666666) internal successors, (629), 3 states have internal predecessors, (629), 0 states have call successors, (0), 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 16:45:11,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:11,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 245 [2024-10-11 16:45:11,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:11,294 INFO L124 PetriNetUnfolderBase]: 58/1187 cut-off events. [2024-10-11 16:45:11,294 INFO L125 PetriNetUnfolderBase]: For 166/342 co-relation queries the response was YES. [2024-10-11 16:45:11,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1388 conditions, 1187 events. 58/1187 cut-off events. For 166/342 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7013 event pairs, 28 based on Foata normal form. 2/1046 useless extension candidates. Maximal degree in co-relation 706. Up to 110 conditions per place. [2024-10-11 16:45:11,301 INFO L140 encePairwiseOnDemand]: 243/245 looper letters, 16 selfloop transitions, 0 changer transitions 1/182 dead transitions. [2024-10-11 16:45:11,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 182 transitions, 431 flow [2024-10-11 16:45:11,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:11,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:11,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 642 transitions. [2024-10-11 16:45:11,303 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8734693877551021 [2024-10-11 16:45:11,303 INFO L175 Difference]: Start difference. First operand has 190 places, 183 transitions, 402 flow. Second operand 3 states and 642 transitions. [2024-10-11 16:45:11,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 182 transitions, 431 flow [2024-10-11 16:45:11,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 182 transitions, 423 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-11 16:45:11,308 INFO L231 Difference]: Finished difference. Result has 189 places, 181 transitions, 389 flow [2024-10-11 16:45:11,308 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=389, PETRI_PLACES=189, PETRI_TRANSITIONS=181} [2024-10-11 16:45:11,309 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -43 predicate places. [2024-10-11 16:45:11,309 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 181 transitions, 389 flow [2024-10-11 16:45:11,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.66666666666666) internal successors, (629), 3 states have internal predecessors, (629), 0 states have call successors, (0), 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 16:45:11,310 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:11,310 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 16:45:11,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 16:45:11,311 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:11,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:11,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1807168628, now seen corresponding path program 1 times [2024-10-11 16:45:11,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:11,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522720175] [2024-10-11 16:45:11,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:11,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:11,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:11,763 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 16:45:11,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:11,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522720175] [2024-10-11 16:45:11,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522720175] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:11,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:11,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:11,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011047871] [2024-10-11 16:45:11,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:11,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:11,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:11,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:11,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:11,994 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 245 [2024-10-11 16:45:11,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 181 transitions, 389 flow. Second operand has 6 states, 6 states have (on average 184.66666666666666) internal successors, (1108), 6 states have internal predecessors, (1108), 0 states have call successors, (0), 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 16:45:11,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:11,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 245 [2024-10-11 16:45:11,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:12,483 INFO L124 PetriNetUnfolderBase]: 650/3747 cut-off events. [2024-10-11 16:45:12,483 INFO L125 PetriNetUnfolderBase]: For 96/98 co-relation queries the response was YES. [2024-10-11 16:45:12,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5281 conditions, 3747 events. 650/3747 cut-off events. For 96/98 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 32704 event pairs, 296 based on Foata normal form. 0/3356 useless extension candidates. Maximal degree in co-relation 5275. Up to 1255 conditions per place. [2024-10-11 16:45:12,502 INFO L140 encePairwiseOnDemand]: 239/245 looper letters, 44 selfloop transitions, 5 changer transitions 4/188 dead transitions. [2024-10-11 16:45:12,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 188 transitions, 503 flow [2024-10-11 16:45:12,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:12,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:12,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1149 transitions. [2024-10-11 16:45:12,505 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7816326530612245 [2024-10-11 16:45:12,505 INFO L175 Difference]: Start difference. First operand has 189 places, 181 transitions, 389 flow. Second operand 6 states and 1149 transitions. [2024-10-11 16:45:12,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 188 transitions, 503 flow [2024-10-11 16:45:12,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 188 transitions, 501 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:12,509 INFO L231 Difference]: Finished difference. Result has 191 places, 176 transitions, 387 flow [2024-10-11 16:45:12,510 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=191, PETRI_TRANSITIONS=176} [2024-10-11 16:45:12,510 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -41 predicate places. [2024-10-11 16:45:12,510 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 176 transitions, 387 flow [2024-10-11 16:45:12,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.66666666666666) internal successors, (1108), 6 states have internal predecessors, (1108), 0 states have call successors, (0), 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 16:45:12,511 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:12,511 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] [2024-10-11 16:45:12,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 16:45:12,512 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:12,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:12,512 INFO L85 PathProgramCache]: Analyzing trace with hash 34772814, now seen corresponding path program 1 times [2024-10-11 16:45:12,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:12,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238056596] [2024-10-11 16:45:12,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:12,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:12,598 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 16:45:12,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:12,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238056596] [2024-10-11 16:45:12,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238056596] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:12,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:12,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 16:45:12,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507063146] [2024-10-11 16:45:12,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:12,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 16:45:12,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:12,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 16:45:12,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 16:45:12,712 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 245 [2024-10-11 16:45:12,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 176 transitions, 387 flow. Second operand has 4 states, 4 states have (on average 204.5) internal successors, (818), 4 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:12,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:12,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 245 [2024-10-11 16:45:12,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:12,911 INFO L124 PetriNetUnfolderBase]: 159/1512 cut-off events. [2024-10-11 16:45:12,911 INFO L125 PetriNetUnfolderBase]: For 114/216 co-relation queries the response was YES. [2024-10-11 16:45:12,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1969 conditions, 1512 events. 159/1512 cut-off events. For 114/216 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 10354 event pairs, 120 based on Foata normal form. 11/1351 useless extension candidates. Maximal degree in co-relation 1963. Up to 209 conditions per place. [2024-10-11 16:45:12,919 INFO L140 encePairwiseOnDemand]: 233/245 looper letters, 42 selfloop transitions, 10 changer transitions 0/204 dead transitions. [2024-10-11 16:45:12,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 204 transitions, 571 flow [2024-10-11 16:45:12,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 16:45:12,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 16:45:12,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 866 transitions. [2024-10-11 16:45:12,922 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8836734693877552 [2024-10-11 16:45:12,922 INFO L175 Difference]: Start difference. First operand has 191 places, 176 transitions, 387 flow. Second operand 4 states and 866 transitions. [2024-10-11 16:45:12,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 204 transitions, 571 flow [2024-10-11 16:45:12,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 204 transitions, 561 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:12,926 INFO L231 Difference]: Finished difference. Result has 187 places, 184 transitions, 451 flow [2024-10-11 16:45:12,927 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=451, PETRI_PLACES=187, PETRI_TRANSITIONS=184} [2024-10-11 16:45:12,929 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -45 predicate places. [2024-10-11 16:45:12,929 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 184 transitions, 451 flow [2024-10-11 16:45:12,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 204.5) internal successors, (818), 4 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:12,930 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:12,930 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:12,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 16:45:12,931 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:12,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:12,932 INFO L85 PathProgramCache]: Analyzing trace with hash 2013852745, now seen corresponding path program 1 times [2024-10-11 16:45:12,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:12,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165663308] [2024-10-11 16:45:12,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:12,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:45:12,974 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 16:45:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:45:13,017 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 16:45:13,017 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 16:45:13,019 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2024-10-11 16:45:13,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2024-10-11 16:45:13,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2024-10-11 16:45:13,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2024-10-11 16:45:13,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2024-10-11 16:45:13,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2024-10-11 16:45:13,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2024-10-11 16:45:13,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2024-10-11 16:45:13,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2024-10-11 16:45:13,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2024-10-11 16:45:13,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2024-10-11 16:45:13,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2024-10-11 16:45:13,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2024-10-11 16:45:13,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2024-10-11 16:45:13,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2024-10-11 16:45:13,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2024-10-11 16:45:13,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2024-10-11 16:45:13,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2024-10-11 16:45:13,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2024-10-11 16:45:13,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2024-10-11 16:45:13,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2024-10-11 16:45:13,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2024-10-11 16:45:13,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2024-10-11 16:45:13,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2024-10-11 16:45:13,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2024-10-11 16:45:13,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2024-10-11 16:45:13,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2024-10-11 16:45:13,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 33 remaining) [2024-10-11 16:45:13,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2024-10-11 16:45:13,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2024-10-11 16:45:13,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2024-10-11 16:45:13,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2024-10-11 16:45:13,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2024-10-11 16:45:13,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 16:45:13,029 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:13,032 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 16:45:13,032 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-11 16:45:13,069 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-10-11 16:45:13,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 263 places, 278 transitions, 600 flow [2024-10-11 16:45:13,232 INFO L124 PetriNetUnfolderBase]: 155/1630 cut-off events. [2024-10-11 16:45:13,233 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-10-11 16:45:13,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1719 conditions, 1630 events. 155/1630 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9460 event pairs, 1 based on Foata normal form. 0/1331 useless extension candidates. Maximal degree in co-relation 942. Up to 32 conditions per place. [2024-10-11 16:45:13,243 INFO L82 GeneralOperation]: Start removeDead. Operand has 263 places, 278 transitions, 600 flow [2024-10-11 16:45:13,257 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 263 places, 278 transitions, 600 flow [2024-10-11 16:45:13,262 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:45:13,263 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;@5c49075, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:45:13,263 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-10-11 16:45:13,264 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:45:13,265 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-10-11 16:45:13,274 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:45:13,274 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:13,274 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:13,275 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:13,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:13,275 INFO L85 PathProgramCache]: Analyzing trace with hash -226736677, now seen corresponding path program 1 times [2024-10-11 16:45:13,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:13,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632770380] [2024-10-11 16:45:13,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:13,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:13,303 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 16:45:13,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:13,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632770380] [2024-10-11 16:45:13,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632770380] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:13,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:13,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:13,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790533918] [2024-10-11 16:45:13,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:13,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:13,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:13,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:13,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:13,323 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 278 [2024-10-11 16:45:13,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 278 transitions, 600 flow. Second operand has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 0 states have call successors, (0), 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 16:45:13,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:13,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 278 [2024-10-11 16:45:13,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:14,859 INFO L124 PetriNetUnfolderBase]: 2218/10556 cut-off events. [2024-10-11 16:45:14,860 INFO L125 PetriNetUnfolderBase]: For 2708/5777 co-relation queries the response was YES. [2024-10-11 16:45:14,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14543 conditions, 10556 events. 2218/10556 cut-off events. For 2708/5777 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 112852 event pairs, 1905 based on Foata normal form. 1203/10033 useless extension candidates. Maximal degree in co-relation 9437. Up to 3249 conditions per place. [2024-10-11 16:45:14,938 INFO L140 encePairwiseOnDemand]: 251/278 looper letters, 28 selfloop transitions, 1 changer transitions 4/248 dead transitions. [2024-10-11 16:45:14,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 248 transitions, 598 flow [2024-10-11 16:45:14,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:14,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:14,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 718 transitions. [2024-10-11 16:45:14,940 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8609112709832134 [2024-10-11 16:45:14,941 INFO L175 Difference]: Start difference. First operand has 263 places, 278 transitions, 600 flow. Second operand 3 states and 718 transitions. [2024-10-11 16:45:14,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 248 transitions, 598 flow [2024-10-11 16:45:14,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 248 transitions, 598 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:45:14,948 INFO L231 Difference]: Finished difference. Result has 249 places, 244 transitions, 534 flow [2024-10-11 16:45:14,948 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=249, PETRI_TRANSITIONS=244} [2024-10-11 16:45:14,949 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -14 predicate places. [2024-10-11 16:45:14,949 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 244 transitions, 534 flow [2024-10-11 16:45:14,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 0 states have call successors, (0), 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 16:45:14,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:14,951 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] [2024-10-11 16:45:14,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 16:45:14,951 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:14,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:14,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1561032317, now seen corresponding path program 1 times [2024-10-11 16:45:14,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:14,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107322421] [2024-10-11 16:45:14,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:14,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:14,985 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 16:45:14,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:14,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107322421] [2024-10-11 16:45:14,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107322421] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:14,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:14,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:14,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322443512] [2024-10-11 16:45:14,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:14,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:14,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:14,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:14,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:14,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 278 [2024-10-11 16:45:14,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 244 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 231.66666666666666) internal successors, (695), 3 states have internal predecessors, (695), 0 states have call successors, (0), 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 16:45:14,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:14,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 278 [2024-10-11 16:45:14,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:17,541 INFO L124 PetriNetUnfolderBase]: 2492/17972 cut-off events. [2024-10-11 16:45:17,541 INFO L125 PetriNetUnfolderBase]: For 5620/27496 co-relation queries the response was YES. [2024-10-11 16:45:17,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22939 conditions, 17972 events. 2492/17972 cut-off events. For 5620/27496 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 226478 event pairs, 1706 based on Foata normal form. 0/14727 useless extension candidates. Maximal degree in co-relation 11439. Up to 1670 conditions per place. [2024-10-11 16:45:17,782 INFO L140 encePairwiseOnDemand]: 276/278 looper letters, 41 selfloop transitions, 1 changer transitions 0/263 dead transitions. [2024-10-11 16:45:17,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 263 transitions, 696 flow [2024-10-11 16:45:17,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:17,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:17,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 736 transitions. [2024-10-11 16:45:17,785 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.882494004796163 [2024-10-11 16:45:17,786 INFO L175 Difference]: Start difference. First operand has 249 places, 244 transitions, 534 flow. Second operand 3 states and 736 transitions. [2024-10-11 16:45:17,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 263 transitions, 696 flow [2024-10-11 16:45:17,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 263 transitions, 695 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:17,792 INFO L231 Difference]: Finished difference. Result has 245 places, 243 transitions, 533 flow [2024-10-11 16:45:17,793 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=533, PETRI_PLACES=245, PETRI_TRANSITIONS=243} [2024-10-11 16:45:17,795 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -18 predicate places. [2024-10-11 16:45:17,795 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 243 transitions, 533 flow [2024-10-11 16:45:17,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.66666666666666) internal successors, (695), 3 states have internal predecessors, (695), 0 states have call successors, (0), 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 16:45:17,796 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:17,796 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] [2024-10-11 16:45:17,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 16:45:17,796 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:17,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:17,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1147303993, now seen corresponding path program 1 times [2024-10-11 16:45:17,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:17,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830873631] [2024-10-11 16:45:17,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:17,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:17,817 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 16:45:17,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:17,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830873631] [2024-10-11 16:45:17,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830873631] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:17,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:17,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:17,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787287563] [2024-10-11 16:45:17,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:17,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:17,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:17,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:17,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:17,846 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 278 [2024-10-11 16:45:17,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 243 transitions, 533 flow. Second operand has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 0 states have call successors, (0), 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 16:45:17,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:17,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 278 [2024-10-11 16:45:17,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:22,309 INFO L124 PetriNetUnfolderBase]: 14770/42373 cut-off events. [2024-10-11 16:45:22,309 INFO L125 PetriNetUnfolderBase]: For 10634/48790 co-relation queries the response was YES. [2024-10-11 16:45:22,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66312 conditions, 42373 events. 14770/42373 cut-off events. For 10634/48790 co-relation queries the response was YES. Maximal size of possible extension queue 1107. Compared 496504 event pairs, 4272 based on Foata normal form. 121/37401 useless extension candidates. Maximal degree in co-relation 33152. Up to 17809 conditions per place. [2024-10-11 16:45:22,564 INFO L140 encePairwiseOnDemand]: 264/278 looper letters, 41 selfloop transitions, 2 changer transitions 18/258 dead transitions. [2024-10-11 16:45:22,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 258 transitions, 702 flow [2024-10-11 16:45:22,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:22,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:22,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 701 transitions. [2024-10-11 16:45:22,567 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8405275779376499 [2024-10-11 16:45:22,567 INFO L175 Difference]: Start difference. First operand has 245 places, 243 transitions, 533 flow. Second operand 3 states and 701 transitions. [2024-10-11 16:45:22,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 258 transitions, 702 flow [2024-10-11 16:45:22,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 258 transitions, 701 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:22,575 INFO L231 Difference]: Finished difference. Result has 240 places, 223 transitions, 502 flow [2024-10-11 16:45:22,575 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=240, PETRI_TRANSITIONS=223} [2024-10-11 16:45:22,577 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -23 predicate places. [2024-10-11 16:45:22,577 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 223 transitions, 502 flow [2024-10-11 16:45:22,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 0 states have call successors, (0), 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 16:45:22,577 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:22,578 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] [2024-10-11 16:45:22,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 16:45:22,578 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:22,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:22,579 INFO L85 PathProgramCache]: Analyzing trace with hash 773826362, now seen corresponding path program 1 times [2024-10-11 16:45:22,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:22,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801462052] [2024-10-11 16:45:22,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:22,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:22,602 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 16:45:22,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:22,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801462052] [2024-10-11 16:45:22,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801462052] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:22,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:22,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:22,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286703412] [2024-10-11 16:45:22,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:22,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:22,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:22,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:22,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:22,626 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 278 [2024-10-11 16:45:22,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 223 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 0 states have call successors, (0), 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 16:45:22,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:22,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 278 [2024-10-11 16:45:22,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:25,138 INFO L124 PetriNetUnfolderBase]: 6096/23780 cut-off events. [2024-10-11 16:45:25,138 INFO L125 PetriNetUnfolderBase]: For 5200/11740 co-relation queries the response was YES. [2024-10-11 16:45:25,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35749 conditions, 23780 events. 6096/23780 cut-off events. For 5200/11740 co-relation queries the response was YES. Maximal size of possible extension queue 540. Compared 276820 event pairs, 5210 based on Foata normal form. 0/21026 useless extension candidates. Maximal degree in co-relation 28670. Up to 8524 conditions per place. [2024-10-11 16:45:25,460 INFO L140 encePairwiseOnDemand]: 272/278 looper letters, 28 selfloop transitions, 2 changer transitions 0/220 dead transitions. [2024-10-11 16:45:25,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 220 transitions, 556 flow [2024-10-11 16:45:25,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:25,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:25,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 697 transitions. [2024-10-11 16:45:25,462 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8357314148681055 [2024-10-11 16:45:25,462 INFO L175 Difference]: Start difference. First operand has 240 places, 223 transitions, 502 flow. Second operand 3 states and 697 transitions. [2024-10-11 16:45:25,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 220 transitions, 556 flow [2024-10-11 16:45:25,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 220 transitions, 556 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:45:25,470 INFO L231 Difference]: Finished difference. Result has 224 places, 220 transitions, 504 flow [2024-10-11 16:45:25,471 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=504, PETRI_PLACES=224, PETRI_TRANSITIONS=220} [2024-10-11 16:45:25,472 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -39 predicate places. [2024-10-11 16:45:25,472 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 220 transitions, 504 flow [2024-10-11 16:45:25,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 0 states have call successors, (0), 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 16:45:25,473 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:25,473 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] [2024-10-11 16:45:25,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 16:45:25,473 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:25,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:25,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1771233283, now seen corresponding path program 1 times [2024-10-11 16:45:25,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:25,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213527011] [2024-10-11 16:45:25,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:25,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:25,498 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 16:45:25,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:25,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213527011] [2024-10-11 16:45:25,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213527011] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:25,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:25,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:25,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924688839] [2024-10-11 16:45:25,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:25,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:25,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:25,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:25,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:25,527 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 278 [2024-10-11 16:45:25,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 220 transitions, 504 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 16:45:25,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:25,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 278 [2024-10-11 16:45:25,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:27,891 INFO L124 PetriNetUnfolderBase]: 4656/19695 cut-off events. [2024-10-11 16:45:27,891 INFO L125 PetriNetUnfolderBase]: For 5224/13372 co-relation queries the response was YES. [2024-10-11 16:45:27,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29201 conditions, 19695 events. 4656/19695 cut-off events. For 5224/13372 co-relation queries the response was YES. Maximal size of possible extension queue 572. Compared 229745 event pairs, 3782 based on Foata normal form. 0/16702 useless extension candidates. Maximal degree in co-relation 24021. Up to 6578 conditions per place. [2024-10-11 16:45:27,992 INFO L140 encePairwiseOnDemand]: 275/278 looper letters, 28 selfloop transitions, 2 changer transitions 2/219 dead transitions. [2024-10-11 16:45:27,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 219 transitions, 562 flow [2024-10-11 16:45:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:27,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:27,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 700 transitions. [2024-10-11 16:45:27,994 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8393285371702638 [2024-10-11 16:45:27,994 INFO L175 Difference]: Start difference. First operand has 224 places, 220 transitions, 504 flow. Second operand 3 states and 700 transitions. [2024-10-11 16:45:27,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 219 transitions, 562 flow [2024-10-11 16:45:28,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 219 transitions, 562 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:45:28,003 INFO L231 Difference]: Finished difference. Result has 225 places, 217 transitions, 502 flow [2024-10-11 16:45:28,003 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=225, PETRI_TRANSITIONS=217} [2024-10-11 16:45:28,004 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -38 predicate places. [2024-10-11 16:45:28,004 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 217 transitions, 502 flow [2024-10-11 16:45:28,004 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 16:45:28,005 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:28,005 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] [2024-10-11 16:45:28,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 16:45:28,005 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:28,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:28,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1142787818, now seen corresponding path program 1 times [2024-10-11 16:45:28,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:28,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945431539] [2024-10-11 16:45:28,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:28,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:28,035 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 16:45:28,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:28,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945431539] [2024-10-11 16:45:28,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945431539] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:28,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:28,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:28,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575857579] [2024-10-11 16:45:28,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:28,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:28,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:28,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:28,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:28,096 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 278 [2024-10-11 16:45:28,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 217 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 231.66666666666666) internal successors, (695), 3 states have internal predecessors, (695), 0 states have call successors, (0), 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 16:45:28,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:28,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 278 [2024-10-11 16:45:28,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:30,143 INFO L124 PetriNetUnfolderBase]: 2546/16004 cut-off events. [2024-10-11 16:45:30,144 INFO L125 PetriNetUnfolderBase]: For 5620/27496 co-relation queries the response was YES. [2024-10-11 16:45:30,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21678 conditions, 16004 events. 2546/16004 cut-off events. For 5620/27496 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 193084 event pairs, 1706 based on Foata normal form. 0/13616 useless extension candidates. Maximal degree in co-relation 19193. Up to 1670 conditions per place. [2024-10-11 16:45:30,244 INFO L140 encePairwiseOnDemand]: 276/278 looper letters, 41 selfloop transitions, 1 changer transitions 0/236 dead transitions. [2024-10-11 16:45:30,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 236 transitions, 664 flow [2024-10-11 16:45:30,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:30,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:30,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 736 transitions. [2024-10-11 16:45:30,247 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.882494004796163 [2024-10-11 16:45:30,247 INFO L175 Difference]: Start difference. First operand has 225 places, 217 transitions, 502 flow. Second operand 3 states and 736 transitions. [2024-10-11 16:45:30,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 236 transitions, 664 flow [2024-10-11 16:45:30,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 236 transitions, 660 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:30,256 INFO L231 Difference]: Finished difference. Result has 222 places, 216 transitions, 498 flow [2024-10-11 16:45:30,257 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=222, PETRI_TRANSITIONS=216} [2024-10-11 16:45:30,257 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -41 predicate places. [2024-10-11 16:45:30,258 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 216 transitions, 498 flow [2024-10-11 16:45:30,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.66666666666666) internal successors, (695), 3 states have internal predecessors, (695), 0 states have call successors, (0), 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 16:45:30,258 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:30,259 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] [2024-10-11 16:45:30,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 16:45:30,259 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:30,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:30,260 INFO L85 PathProgramCache]: Analyzing trace with hash -743422452, now seen corresponding path program 1 times [2024-10-11 16:45:30,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:30,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854123091] [2024-10-11 16:45:30,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:30,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:30,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:30,295 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 16:45:30,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:30,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854123091] [2024-10-11 16:45:30,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854123091] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:30,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:30,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:30,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341298780] [2024-10-11 16:45:30,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:30,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:30,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:30,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:30,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:30,323 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 278 [2024-10-11 16:45:30,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 216 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 16:45:30,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:30,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 278 [2024-10-11 16:45:30,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:32,789 INFO L124 PetriNetUnfolderBase]: 5342/21325 cut-off events. [2024-10-11 16:45:32,790 INFO L125 PetriNetUnfolderBase]: For 5228/13428 co-relation queries the response was YES. [2024-10-11 16:45:32,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31977 conditions, 21325 events. 5342/21325 cut-off events. For 5228/13428 co-relation queries the response was YES. Maximal size of possible extension queue 613. Compared 250819 event pairs, 4482 based on Foata normal form. 0/18200 useless extension candidates. Maximal degree in co-relation 25846. Up to 7458 conditions per place. [2024-10-11 16:45:32,884 INFO L140 encePairwiseOnDemand]: 275/278 looper letters, 29 selfloop transitions, 2 changer transitions 0/215 dead transitions. [2024-10-11 16:45:32,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 215 transitions, 558 flow [2024-10-11 16:45:32,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:32,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:32,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 700 transitions. [2024-10-11 16:45:32,886 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8393285371702638 [2024-10-11 16:45:32,886 INFO L175 Difference]: Start difference. First operand has 222 places, 216 transitions, 498 flow. Second operand 3 states and 700 transitions. [2024-10-11 16:45:32,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 215 transitions, 558 flow [2024-10-11 16:45:32,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 215 transitions, 557 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:32,893 INFO L231 Difference]: Finished difference. Result has 222 places, 215 transitions, 499 flow [2024-10-11 16:45:32,894 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=499, PETRI_PLACES=222, PETRI_TRANSITIONS=215} [2024-10-11 16:45:32,894 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -41 predicate places. [2024-10-11 16:45:32,894 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 215 transitions, 499 flow [2024-10-11 16:45:32,895 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 16:45:32,895 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:32,895 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] [2024-10-11 16:45:32,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 16:45:32,895 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:32,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:32,896 INFO L85 PathProgramCache]: Analyzing trace with hash 203469122, now seen corresponding path program 1 times [2024-10-11 16:45:32,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:32,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049033712] [2024-10-11 16:45:32,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:32,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:32,923 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 16:45:32,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:32,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049033712] [2024-10-11 16:45:32,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049033712] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:32,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:32,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 16:45:32,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943933567] [2024-10-11 16:45:32,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:32,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:32,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:32,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:32,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:32,938 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 278 [2024-10-11 16:45:32,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 215 transitions, 499 flow. Second operand has 3 states, 3 states have (on average 225.66666666666666) internal successors, (677), 3 states have internal predecessors, (677), 0 states have call successors, (0), 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 16:45:32,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:32,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 278 [2024-10-11 16:45:32,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:35,292 INFO L124 PetriNetUnfolderBase]: 3752/19495 cut-off events. [2024-10-11 16:45:35,293 INFO L125 PetriNetUnfolderBase]: For 5620/27496 co-relation queries the response was YES. [2024-10-11 16:45:35,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27253 conditions, 19495 events. 3752/19495 cut-off events. For 5620/27496 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 236494 event pairs, 2730 based on Foata normal form. 2/16460 useless extension candidates. Maximal degree in co-relation 23378. Up to 5036 conditions per place. [2024-10-11 16:45:35,391 INFO L140 encePairwiseOnDemand]: 276/278 looper letters, 27 selfloop transitions, 0 changer transitions 1/214 dead transitions. [2024-10-11 16:45:35,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 214 transitions, 550 flow [2024-10-11 16:45:35,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:35,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:35,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 701 transitions. [2024-10-11 16:45:35,393 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8405275779376499 [2024-10-11 16:45:35,393 INFO L175 Difference]: Start difference. First operand has 222 places, 215 transitions, 499 flow. Second operand 3 states and 701 transitions. [2024-10-11 16:45:35,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 214 transitions, 550 flow [2024-10-11 16:45:35,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 214 transitions, 542 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-11 16:45:35,399 INFO L231 Difference]: Finished difference. Result has 221 places, 213 transitions, 486 flow [2024-10-11 16:45:35,399 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=486, PETRI_PLACES=221, PETRI_TRANSITIONS=213} [2024-10-11 16:45:35,400 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -42 predicate places. [2024-10-11 16:45:35,400 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 213 transitions, 486 flow [2024-10-11 16:45:35,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 225.66666666666666) internal successors, (677), 3 states have internal predecessors, (677), 0 states have call successors, (0), 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 16:45:35,400 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:35,400 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 16:45:35,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 16:45:35,400 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:35,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:35,401 INFO L85 PathProgramCache]: Analyzing trace with hash 2087288456, now seen corresponding path program 1 times [2024-10-11 16:45:35,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:35,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821210648] [2024-10-11 16:45:35,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:35,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:35,730 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 16:45:35,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:35,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821210648] [2024-10-11 16:45:35,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821210648] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:35,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:35,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:35,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205098098] [2024-10-11 16:45:35,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:35,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:35,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:35,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:35,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:35,920 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 278 [2024-10-11 16:45:35,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 213 transitions, 486 flow. Second operand has 6 states, 6 states have (on average 200.66666666666666) internal successors, (1204), 6 states have internal predecessors, (1204), 0 states have call successors, (0), 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 16:45:35,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:35,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 278 [2024-10-11 16:45:35,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:43,393 INFO L124 PetriNetUnfolderBase]: 20988/73427 cut-off events. [2024-10-11 16:45:43,393 INFO L125 PetriNetUnfolderBase]: For 3154/3218 co-relation queries the response was YES. [2024-10-11 16:45:43,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112170 conditions, 73427 events. 20988/73427 cut-off events. For 3154/3218 co-relation queries the response was YES. Maximal size of possible extension queue 1534. Compared 979042 event pairs, 9754 based on Foata normal form. 0/67098 useless extension candidates. Maximal degree in co-relation 112161. Up to 29941 conditions per place. [2024-10-11 16:45:43,844 INFO L140 encePairwiseOnDemand]: 271/278 looper letters, 64 selfloop transitions, 5 changer transitions 3/228 dead transitions. [2024-10-11 16:45:43,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 228 transitions, 656 flow [2024-10-11 16:45:43,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:43,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:43,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1265 transitions. [2024-10-11 16:45:43,847 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7583932853717026 [2024-10-11 16:45:43,847 INFO L175 Difference]: Start difference. First operand has 221 places, 213 transitions, 486 flow. Second operand 6 states and 1265 transitions. [2024-10-11 16:45:43,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 228 transitions, 656 flow [2024-10-11 16:45:43,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 228 transitions, 654 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:43,856 INFO L231 Difference]: Finished difference. Result has 223 places, 209 transitions, 486 flow [2024-10-11 16:45:43,857 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=486, PETRI_PLACES=223, PETRI_TRANSITIONS=209} [2024-10-11 16:45:43,857 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -40 predicate places. [2024-10-11 16:45:43,857 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 209 transitions, 486 flow [2024-10-11 16:45:43,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 200.66666666666666) internal successors, (1204), 6 states have internal predecessors, (1204), 0 states have call successors, (0), 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 16:45:43,858 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:43,858 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] [2024-10-11 16:45:43,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 16:45:43,858 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:43,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:43,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2116770914, now seen corresponding path program 1 times [2024-10-11 16:45:43,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:43,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568602055] [2024-10-11 16:45:43,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:43,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:43,951 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 16:45:43,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:43,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568602055] [2024-10-11 16:45:43,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568602055] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:43,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:43,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 16:45:43,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56424222] [2024-10-11 16:45:43,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:43,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 16:45:43,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:43,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 16:45:43,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 16:45:44,085 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 278 [2024-10-11 16:45:44,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 209 transitions, 486 flow. Second operand has 4 states, 4 states have (on average 220.5) internal successors, (882), 4 states have internal predecessors, (882), 0 states have call successors, (0), 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 16:45:44,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:44,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 278 [2024-10-11 16:45:44,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:47,147 INFO L124 PetriNetUnfolderBase]: 7222/29018 cut-off events. [2024-10-11 16:45:47,147 INFO L125 PetriNetUnfolderBase]: For 4520/9346 co-relation queries the response was YES. [2024-10-11 16:45:47,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43101 conditions, 29018 events. 7222/29018 cut-off events. For 4520/9346 co-relation queries the response was YES. Maximal size of possible extension queue 713. Compared 354363 event pairs, 5043 based on Foata normal form. 137/25721 useless extension candidates. Maximal degree in co-relation 43092. Up to 5892 conditions per place. [2024-10-11 16:45:47,309 INFO L140 encePairwiseOnDemand]: 265/278 looper letters, 77 selfloop transitions, 11 changer transitions 0/262 dead transitions. [2024-10-11 16:45:47,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 262 transitions, 832 flow [2024-10-11 16:45:47,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 16:45:47,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 16:45:47,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 966 transitions. [2024-10-11 16:45:47,312 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8687050359712231 [2024-10-11 16:45:47,312 INFO L175 Difference]: Start difference. First operand has 223 places, 209 transitions, 486 flow. Second operand 4 states and 966 transitions. [2024-10-11 16:45:47,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 262 transitions, 832 flow [2024-10-11 16:45:47,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 262 transitions, 822 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:47,323 INFO L231 Difference]: Finished difference. Result has 220 places, 218 transitions, 558 flow [2024-10-11 16:45:47,324 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=558, PETRI_PLACES=220, PETRI_TRANSITIONS=218} [2024-10-11 16:45:47,324 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -43 predicate places. [2024-10-11 16:45:47,324 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 218 transitions, 558 flow [2024-10-11 16:45:47,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 220.5) internal successors, (882), 4 states have internal predecessors, (882), 0 states have call successors, (0), 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 16:45:47,325 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:47,325 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:47,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 16:45:47,325 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:47,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:47,326 INFO L85 PathProgramCache]: Analyzing trace with hash -2130107409, now seen corresponding path program 1 times [2024-10-11 16:45:47,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:47,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220221501] [2024-10-11 16:45:47,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:47,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:47,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:47,735 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:47,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:47,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220221501] [2024-10-11 16:45:47,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220221501] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:47,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414907313] [2024-10-11 16:45:47,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:47,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:47,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:47,739 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:47,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 16:45:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:47,841 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 16:45:47,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:48,083 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:48,083 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 16:45:48,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:48,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414907313] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 16:45:48,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 16:45:48,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-10-11 16:45:48,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659574813] [2024-10-11 16:45:48,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 16:45:48,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 16:45:48,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:48,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 16:45:48,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 16:45:48,736 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 278 [2024-10-11 16:45:48,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 218 transitions, 558 flow. Second operand has 13 states, 13 states have (on average 217.15384615384616) internal successors, (2823), 13 states have internal predecessors, (2823), 0 states have call successors, (0), 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 16:45:48,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:48,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 278 [2024-10-11 16:45:48,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:52,718 INFO L124 PetriNetUnfolderBase]: 8149/34410 cut-off events. [2024-10-11 16:45:52,718 INFO L125 PetriNetUnfolderBase]: For 7364/8250 co-relation queries the response was YES. [2024-10-11 16:45:52,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53244 conditions, 34410 events. 8149/34410 cut-off events. For 7364/8250 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 433958 event pairs, 3154 based on Foata normal form. 3/30657 useless extension candidates. Maximal degree in co-relation 53233. Up to 5348 conditions per place. [2024-10-11 16:45:52,881 INFO L140 encePairwiseOnDemand]: 262/278 looper letters, 100 selfloop transitions, 21 changer transitions 0/291 dead transitions. [2024-10-11 16:45:52,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 291 transitions, 1026 flow [2024-10-11 16:45:52,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 16:45:52,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 16:45:52,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1842 transitions. [2024-10-11 16:45:52,886 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8282374100719424 [2024-10-11 16:45:52,886 INFO L175 Difference]: Start difference. First operand has 220 places, 218 transitions, 558 flow. Second operand 8 states and 1842 transitions. [2024-10-11 16:45:52,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 291 transitions, 1026 flow [2024-10-11 16:45:52,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 291 transitions, 1024 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:52,900 INFO L231 Difference]: Finished difference. Result has 231 places, 226 transitions, 666 flow [2024-10-11 16:45:52,901 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=666, PETRI_PLACES=231, PETRI_TRANSITIONS=226} [2024-10-11 16:45:52,901 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -32 predicate places. [2024-10-11 16:45:52,901 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 226 transitions, 666 flow [2024-10-11 16:45:52,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 217.15384615384616) internal successors, (2823), 13 states have internal predecessors, (2823), 0 states have call successors, (0), 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 16:45:52,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:52,903 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] [2024-10-11 16:45:52,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 16:45:53,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-11 16:45:53,104 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:53,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:53,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1026004264, now seen corresponding path program 1 times [2024-10-11 16:45:53,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:53,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380594230] [2024-10-11 16:45:53,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:53,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:53,385 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 16:45:53,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:53,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380594230] [2024-10-11 16:45:53,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380594230] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:53,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:53,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:53,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118259117] [2024-10-11 16:45:53,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:53,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:53,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:53,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:53,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:53,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 278 [2024-10-11 16:45:53,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 226 transitions, 666 flow. Second operand has 6 states, 6 states have (on average 200.83333333333334) internal successors, (1205), 6 states have internal predecessors, (1205), 0 states have call successors, (0), 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 16:45:53,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:53,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 278 [2024-10-11 16:45:53,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand