./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread/twostage_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/twostage_3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:29:32,691 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:29:32,744 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 17:29:32,747 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:29:32,747 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:29:32,773 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:29:32,774 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:29:32,775 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:29:32,775 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:29:32,776 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:29:32,777 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:29:32,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:29:32,778 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:29:32,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:29:32,778 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:29:32,778 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:29:32,779 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:29:32,779 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:29:32,779 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:29:32,780 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:29:32,780 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:29:32,782 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:29:32,782 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 17:29:32,782 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:29:32,783 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 17:29:32,783 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:29:32,783 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:29:32,783 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:29:32,784 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:29:32,784 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:29:32,784 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:29:32,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:29:32,785 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:29:32,785 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:29:32,785 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:29:32,785 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:29:32,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:29:32,786 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:29:32,786 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:29:32,786 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:29:32,787 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:29:32,790 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 [2024-11-22 17:29:32,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:29:32,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:29:32,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:29:32,984 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:29:32,984 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:29:32,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/twostage_3.i [2024-11-22 17:29:34,169 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:29:34,369 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:29:34,370 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/twostage_3.i [2024-11-22 17:29:34,386 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f4eae572/76aeb1c84dc04003a08662aa6e58e0ce/FLAGab1365478 [2024-11-22 17:29:34,717 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f4eae572/76aeb1c84dc04003a08662aa6e58e0ce [2024-11-22 17:29:34,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:29:34,720 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:29:34,721 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:29:34,721 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:29:34,726 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:29:34,726 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:29:34" (1/1) ... [2024-11-22 17:29:34,727 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@205ed9bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:34, skipping insertion in model container [2024-11-22 17:29:34,727 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:29:34" (1/1) ... [2024-11-22 17:29:34,766 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:29:35,203 WARN L1674 CHandler]: Possible shadowing of function lock [2024-11-22 17:29:35,205 WARN L1674 CHandler]: Possible shadowing of function lock [2024-11-22 17:29:35,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:29:35,214 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:29:35,269 WARN L1674 CHandler]: Possible shadowing of function lock [2024-11-22 17:29:35,269 WARN L1674 CHandler]: Possible shadowing of function lock [2024-11-22 17:29:35,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:29:35,336 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:29:35,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:35 WrapperNode [2024-11-22 17:29:35,336 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:29:35,337 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:29:35,337 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:29:35,337 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:29:35,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:35" (1/1) ... [2024-11-22 17:29:35,360 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:35" (1/1) ... [2024-11-22 17:29:35,382 INFO L138 Inliner]: procedures = 373, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 276 [2024-11-22 17:29:35,383 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:29:35,384 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:29:35,384 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:29:35,384 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:29:35,390 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:35" (1/1) ... [2024-11-22 17:29:35,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:35" (1/1) ... [2024-11-22 17:29:35,394 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:35" (1/1) ... [2024-11-22 17:29:35,395 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:35" (1/1) ... [2024-11-22 17:29:35,405 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:35" (1/1) ... [2024-11-22 17:29:35,408 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:35" (1/1) ... [2024-11-22 17:29:35,409 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:35" (1/1) ... [2024-11-22 17:29:35,410 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:35" (1/1) ... [2024-11-22 17:29:35,413 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:29:35,414 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:29:35,414 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:29:35,414 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:29:35,415 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:35" (1/1) ... [2024-11-22 17:29:35,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:29:35,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:29:35,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 17:29:35,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 17:29:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2024-11-22 17:29:35,475 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2024-11-22 17:29:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2024-11-22 17:29:35,475 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2024-11-22 17:29:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 17:29:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 17:29:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 17:29:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-22 17:29:35,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-22 17:29:35,478 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 17:29:35,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 17:29:35,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:29:35,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 17:29:35,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:29:35,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:29:35,480 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 17:29:35,587 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:29:35,589 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:29:35,983 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 17:29:35,983 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:29:36,021 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:29:36,022 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-22 17:29:36,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:29:36 BoogieIcfgContainer [2024-11-22 17:29:36,022 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:29:36,024 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:29:36,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:29:36,027 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:29:36,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:29:34" (1/3) ... [2024-11-22 17:29:36,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4a40f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:29:36, skipping insertion in model container [2024-11-22 17:29:36,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:29:35" (2/3) ... [2024-11-22 17:29:36,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4a40f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:29:36, skipping insertion in model container [2024-11-22 17:29:36,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:29:36" (3/3) ... [2024-11-22 17:29:36,031 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3.i [2024-11-22 17:29:36,044 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:29:36,044 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2024-11-22 17:29:36,045 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 17:29:36,128 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-22 17:29:36,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 353 places, 369 transitions, 758 flow [2024-11-22 17:29:36,292 INFO L124 PetriNetUnfolderBase]: 43/682 cut-off events. [2024-11-22 17:29:36,292 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-22 17:29:36,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 682 events. 43/682 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2924 event pairs, 0 based on Foata normal form. 0/554 useless extension candidates. Maximal degree in co-relation 354. Up to 8 conditions per place. [2024-11-22 17:29:36,306 INFO L82 GeneralOperation]: Start removeDead. Operand has 353 places, 369 transitions, 758 flow [2024-11-22 17:29:36,314 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 353 places, 369 transitions, 758 flow [2024-11-22 17:29:36,320 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:29:36,327 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;@3b573451, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:29:36,328 INFO L334 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2024-11-22 17:29:36,330 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:29:36,330 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-11-22 17:29:36,331 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:29:36,331 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:36,331 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] [2024-11-22 17:29:36,331 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-22 17:29:36,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:36,335 INFO L85 PathProgramCache]: Analyzing trace with hash 430025642, now seen corresponding path program 1 times [2024-11-22 17:29:36,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:36,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327985981] [2024-11-22 17:29:36,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:36,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:36,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:36,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:36,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327985981] [2024-11-22 17:29:36,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327985981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:36,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:36,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:36,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860173453] [2024-11-22 17:29:36,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:36,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:36,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:36,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:36,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:36,657 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 369 [2024-11-22 17:29:36,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 369 transitions, 758 flow. Second operand has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:36,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:36,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 369 [2024-11-22 17:29:36,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:37,048 INFO L124 PetriNetUnfolderBase]: 271/2560 cut-off events. [2024-11-22 17:29:37,048 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2024-11-22 17:29:37,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3072 conditions, 2560 events. 271/2560 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 20155 event pairs, 234 based on Foata normal form. 246/2367 useless extension candidates. Maximal degree in co-relation 2414. Up to 458 conditions per place. [2024-11-22 17:29:37,073 INFO L140 encePairwiseOnDemand]: 350/369 looper letters, 25 selfloop transitions, 1 changer transitions 8/349 dead transitions. [2024-11-22 17:29:37,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 349 transitions, 770 flow [2024-11-22 17:29:37,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:37,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:37,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1016 transitions. [2024-11-22 17:29:37,121 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9177958446251129 [2024-11-22 17:29:37,127 INFO L175 Difference]: Start difference. First operand has 353 places, 369 transitions, 758 flow. Second operand 3 states and 1016 transitions. [2024-11-22 17:29:37,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 349 transitions, 770 flow [2024-11-22 17:29:37,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 349 transitions, 770 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:29:37,141 INFO L231 Difference]: Finished difference. Result has 349 places, 341 transitions, 704 flow [2024-11-22 17:29:37,143 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=704, PETRI_PLACES=349, PETRI_TRANSITIONS=341} [2024-11-22 17:29:37,147 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -4 predicate places. [2024-11-22 17:29:37,149 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 341 transitions, 704 flow [2024-11-22 17:29:37,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:37,150 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:37,150 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] [2024-11-22 17:29:37,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:29:37,150 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-22 17:29:37,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:37,152 INFO L85 PathProgramCache]: Analyzing trace with hash 446020844, now seen corresponding path program 1 times [2024-11-22 17:29:37,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:37,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670563192] [2024-11-22 17:29:37,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:37,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:37,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:37,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:37,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670563192] [2024-11-22 17:29:37,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670563192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:37,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:37,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:37,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566163594] [2024-11-22 17:29:37,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:37,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:37,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:37,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:37,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:37,275 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 369 [2024-11-22 17:29:37,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 341 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:37,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:37,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 369 [2024-11-22 17:29:37,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:37,693 INFO L124 PetriNetUnfolderBase]: 152/2660 cut-off events. [2024-11-22 17:29:37,694 INFO L125 PetriNetUnfolderBase]: For 210/266 co-relation queries the response was YES. [2024-11-22 17:29:37,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3059 conditions, 2660 events. 152/2660 cut-off events. For 210/266 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 20635 event pairs, 116 based on Foata normal form. 0/2231 useless extension candidates. Maximal degree in co-relation 1499. Up to 147 conditions per place. [2024-11-22 17:29:37,713 INFO L140 encePairwiseOnDemand]: 367/369 looper letters, 35 selfloop transitions, 1 changer transitions 0/357 dead transitions. [2024-11-22 17:29:37,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 357 transitions, 826 flow [2024-11-22 17:29:37,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:37,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:37,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1039 transitions. [2024-11-22 17:29:37,716 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.938572719060524 [2024-11-22 17:29:37,716 INFO L175 Difference]: Start difference. First operand has 349 places, 341 transitions, 704 flow. Second operand 3 states and 1039 transitions. [2024-11-22 17:29:37,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 357 transitions, 826 flow [2024-11-22 17:29:37,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 357 transitions, 825 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:29:37,724 INFO L231 Difference]: Finished difference. Result has 341 places, 340 transitions, 703 flow [2024-11-22 17:29:37,724 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=703, PETRI_PLACES=341, PETRI_TRANSITIONS=340} [2024-11-22 17:29:37,725 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -12 predicate places. [2024-11-22 17:29:37,725 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 340 transitions, 703 flow [2024-11-22 17:29:37,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:37,726 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:37,726 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] [2024-11-22 17:29:37,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 17:29:37,727 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-22 17:29:37,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:37,728 INFO L85 PathProgramCache]: Analyzing trace with hash 941708073, now seen corresponding path program 1 times [2024-11-22 17:29:37,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:37,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080649502] [2024-11-22 17:29:37,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:37,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:37,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:37,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:37,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080649502] [2024-11-22 17:29:37,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080649502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:37,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:37,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:37,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902702064] [2024-11-22 17:29:37,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:37,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:37,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:37,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:37,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:37,792 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 369 [2024-11-22 17:29:37,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 340 transitions, 703 flow. Second operand has 3 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:37,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:37,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 369 [2024-11-22 17:29:37,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:38,350 INFO L124 PetriNetUnfolderBase]: 728/3855 cut-off events. [2024-11-22 17:29:38,351 INFO L125 PetriNetUnfolderBase]: For 234/290 co-relation queries the response was YES. [2024-11-22 17:29:38,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5294 conditions, 3855 events. 728/3855 cut-off events. For 234/290 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 32400 event pairs, 156 based on Foata normal form. 5/3415 useless extension candidates. Maximal degree in co-relation 2644. Up to 1033 conditions per place. [2024-11-22 17:29:38,375 INFO L140 encePairwiseOnDemand]: 353/369 looper letters, 37 selfloop transitions, 5 changer transitions 11/349 dead transitions. [2024-11-22 17:29:38,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 349 transitions, 821 flow [2024-11-22 17:29:38,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:38,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:38,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 994 transitions. [2024-11-22 17:29:38,377 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8979223125564589 [2024-11-22 17:29:38,377 INFO L175 Difference]: Start difference. First operand has 341 places, 340 transitions, 703 flow. Second operand 3 states and 994 transitions. [2024-11-22 17:29:38,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 349 transitions, 821 flow [2024-11-22 17:29:38,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 349 transitions, 820 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:29:38,382 INFO L231 Difference]: Finished difference. Result has 335 places, 325 transitions, 691 flow [2024-11-22 17:29:38,383 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=691, PETRI_PLACES=335, PETRI_TRANSITIONS=325} [2024-11-22 17:29:38,384 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -18 predicate places. [2024-11-22 17:29:38,384 INFO L471 AbstractCegarLoop]: Abstraction has has 335 places, 325 transitions, 691 flow [2024-11-22 17:29:38,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:38,385 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:38,385 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] [2024-11-22 17:29:38,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 17:29:38,385 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-22 17:29:38,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:38,387 INFO L85 PathProgramCache]: Analyzing trace with hash -713705851, now seen corresponding path program 1 times [2024-11-22 17:29:38,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:38,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698626160] [2024-11-22 17:29:38,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:38,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:38,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:38,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:38,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698626160] [2024-11-22 17:29:38,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698626160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:38,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:38,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:38,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510903696] [2024-11-22 17:29:38,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:38,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:38,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:38,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:38,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:38,447 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 369 [2024-11-22 17:29:38,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 325 transitions, 691 flow. Second operand has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:38,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:38,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 369 [2024-11-22 17:29:38,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:39,095 INFO L124 PetriNetUnfolderBase]: 892/6890 cut-off events. [2024-11-22 17:29:39,096 INFO L125 PetriNetUnfolderBase]: For 204/204 co-relation queries the response was YES. [2024-11-22 17:29:39,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8651 conditions, 6890 events. 892/6890 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 69743 event pairs, 772 based on Foata normal form. 0/5806 useless extension candidates. Maximal degree in co-relation 7876. Up to 1414 conditions per place. [2024-11-22 17:29:39,127 INFO L140 encePairwiseOnDemand]: 363/369 looper letters, 25 selfloop transitions, 2 changer transitions 0/322 dead transitions. [2024-11-22 17:29:39,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 322 transitions, 739 flow [2024-11-22 17:29:39,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:39,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:39,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1003 transitions. [2024-11-22 17:29:39,130 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9060523938572719 [2024-11-22 17:29:39,130 INFO L175 Difference]: Start difference. First operand has 335 places, 325 transitions, 691 flow. Second operand 3 states and 1003 transitions. [2024-11-22 17:29:39,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 322 transitions, 739 flow [2024-11-22 17:29:39,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 322 transitions, 739 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:29:39,136 INFO L231 Difference]: Finished difference. Result has 325 places, 322 transitions, 693 flow [2024-11-22 17:29:39,137 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=693, PETRI_PLACES=325, PETRI_TRANSITIONS=322} [2024-11-22 17:29:39,138 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -28 predicate places. [2024-11-22 17:29:39,138 INFO L471 AbstractCegarLoop]: Abstraction has has 325 places, 322 transitions, 693 flow [2024-11-22 17:29:39,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:39,139 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:39,139 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] [2024-11-22 17:29:39,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 17:29:39,139 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-22 17:29:39,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:39,140 INFO L85 PathProgramCache]: Analyzing trace with hash -915097583, now seen corresponding path program 1 times [2024-11-22 17:29:39,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:39,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914171412] [2024-11-22 17:29:39,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:39,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:39,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:39,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:39,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914171412] [2024-11-22 17:29:39,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914171412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:39,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:39,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:39,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40729593] [2024-11-22 17:29:39,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:39,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:39,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:39,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:39,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:39,203 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 369 [2024-11-22 17:29:39,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 322 transitions, 693 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:39,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:39,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 369 [2024-11-22 17:29:39,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:39,748 INFO L124 PetriNetUnfolderBase]: 544/4903 cut-off events. [2024-11-22 17:29:39,749 INFO L125 PetriNetUnfolderBase]: For 204/204 co-relation queries the response was YES. [2024-11-22 17:29:39,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6099 conditions, 4903 events. 544/4903 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 47215 event pairs, 456 based on Foata normal form. 0/4156 useless extension candidates. Maximal degree in co-relation 5547. Up to 902 conditions per place. [2024-11-22 17:29:39,782 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 25 selfloop transitions, 2 changer transitions 0/321 dead transitions. [2024-11-22 17:29:39,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 321 transitions, 745 flow [2024-11-22 17:29:39,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:39,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:39,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1006 transitions. [2024-11-22 17:29:39,785 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9087624209575429 [2024-11-22 17:29:39,785 INFO L175 Difference]: Start difference. First operand has 325 places, 322 transitions, 693 flow. Second operand 3 states and 1006 transitions. [2024-11-22 17:29:39,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 321 transitions, 745 flow [2024-11-22 17:29:39,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 321 transitions, 745 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:29:39,792 INFO L231 Difference]: Finished difference. Result has 326 places, 321 transitions, 695 flow [2024-11-22 17:29:39,792 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=691, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=695, PETRI_PLACES=326, PETRI_TRANSITIONS=321} [2024-11-22 17:29:39,793 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -27 predicate places. [2024-11-22 17:29:39,794 INFO L471 AbstractCegarLoop]: Abstraction has has 326 places, 321 transitions, 695 flow [2024-11-22 17:29:39,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:39,794 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:39,795 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] [2024-11-22 17:29:39,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 17:29:39,795 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-22 17:29:39,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:39,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1152647961, now seen corresponding path program 1 times [2024-11-22 17:29:39,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:39,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139261696] [2024-11-22 17:29:39,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:39,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:39,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:39,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:39,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139261696] [2024-11-22 17:29:39,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139261696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:39,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:39,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:29:39,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823364214] [2024-11-22 17:29:39,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:39,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:39,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:39,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:39,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:39,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 369 [2024-11-22 17:29:39,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 321 transitions, 695 flow. Second operand has 3 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:39,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:39,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 369 [2024-11-22 17:29:39,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:40,241 INFO L124 PetriNetUnfolderBase]: 344/3671 cut-off events. [2024-11-22 17:29:40,241 INFO L125 PetriNetUnfolderBase]: For 210/266 co-relation queries the response was YES. [2024-11-22 17:29:40,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4506 conditions, 3671 events. 344/3671 cut-off events. For 210/266 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 33494 event pairs, 280 based on Foata normal form. 2/3100 useless extension candidates. Maximal degree in co-relation 4113. Up to 588 conditions per place. [2024-11-22 17:29:40,261 INFO L140 encePairwiseOnDemand]: 367/369 looper letters, 24 selfloop transitions, 0 changer transitions 1/320 dead transitions. [2024-11-22 17:29:40,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 320 transitions, 740 flow [2024-11-22 17:29:40,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:40,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:40,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1007 transitions. [2024-11-22 17:29:40,264 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9096657633242999 [2024-11-22 17:29:40,264 INFO L175 Difference]: Start difference. First operand has 326 places, 321 transitions, 695 flow. Second operand 3 states and 1007 transitions. [2024-11-22 17:29:40,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 320 transitions, 740 flow [2024-11-22 17:29:40,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 320 transitions, 732 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-22 17:29:40,269 INFO L231 Difference]: Finished difference. Result has 325 places, 319 transitions, 682 flow [2024-11-22 17:29:40,269 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=682, PETRI_PLACES=325, PETRI_TRANSITIONS=319} [2024-11-22 17:29:40,270 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -28 predicate places. [2024-11-22 17:29:40,270 INFO L471 AbstractCegarLoop]: Abstraction has has 325 places, 319 transitions, 682 flow [2024-11-22 17:29:40,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:40,270 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:40,270 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] [2024-11-22 17:29:40,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 17:29:40,271 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-22 17:29:40,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:40,271 INFO L85 PathProgramCache]: Analyzing trace with hash -536794802, now seen corresponding path program 1 times [2024-11-22 17:29:40,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:40,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269061722] [2024-11-22 17:29:40,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:40,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:40,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:40,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:40,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269061722] [2024-11-22 17:29:40,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269061722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:40,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:40,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:40,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275228288] [2024-11-22 17:29:40,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:40,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:40,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:40,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:40,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:40,315 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 369 [2024-11-22 17:29:40,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 319 transitions, 682 flow. Second operand has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:40,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:40,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 369 [2024-11-22 17:29:40,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:40,572 INFO L124 PetriNetUnfolderBase]: 154/2608 cut-off events. [2024-11-22 17:29:40,572 INFO L125 PetriNetUnfolderBase]: For 210/266 co-relation queries the response was YES. [2024-11-22 17:29:40,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3110 conditions, 2608 events. 154/2608 cut-off events. For 210/266 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 20378 event pairs, 116 based on Foata normal form. 0/2260 useless extension candidates. Maximal degree in co-relation 3103. Up to 147 conditions per place. [2024-11-22 17:29:40,593 INFO L140 encePairwiseOnDemand]: 367/369 looper letters, 35 selfloop transitions, 1 changer transitions 0/335 dead transitions. [2024-11-22 17:29:40,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 335 transitions, 804 flow [2024-11-22 17:29:40,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:40,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:40,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1039 transitions. [2024-11-22 17:29:40,595 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.938572719060524 [2024-11-22 17:29:40,595 INFO L175 Difference]: Start difference. First operand has 325 places, 319 transitions, 682 flow. Second operand 3 states and 1039 transitions. [2024-11-22 17:29:40,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 335 transitions, 804 flow [2024-11-22 17:29:40,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 335 transitions, 802 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-22 17:29:40,600 INFO L231 Difference]: Finished difference. Result has 324 places, 318 transitions, 680 flow [2024-11-22 17:29:40,600 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=324, PETRI_TRANSITIONS=318} [2024-11-22 17:29:40,601 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -29 predicate places. [2024-11-22 17:29:40,601 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 318 transitions, 680 flow [2024-11-22 17:29:40,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:40,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:40,602 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] [2024-11-22 17:29:40,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 17:29:40,602 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-22 17:29:40,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:40,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1207613635, now seen corresponding path program 1 times [2024-11-22 17:29:40,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:40,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610359337] [2024-11-22 17:29:40,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:40,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:40,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:40,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:40,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610359337] [2024-11-22 17:29:40,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610359337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:40,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:40,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:40,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632339258] [2024-11-22 17:29:40,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:40,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:40,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:40,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:40,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:40,656 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 369 [2024-11-22 17:29:40,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 318 transitions, 680 flow. Second operand has 3 states, 3 states have (on average 323.3333333333333) internal successors, (970), 3 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:40,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:40,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 369 [2024-11-22 17:29:40,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:41,106 INFO L124 PetriNetUnfolderBase]: 728/5154 cut-off events. [2024-11-22 17:29:41,107 INFO L125 PetriNetUnfolderBase]: For 302/452 co-relation queries the response was YES. [2024-11-22 17:29:41,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6720 conditions, 5154 events. 728/5154 cut-off events. For 302/452 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 51509 event pairs, 644 based on Foata normal form. 0/4296 useless extension candidates. Maximal degree in co-relation 6713. Up to 1238 conditions per place. [2024-11-22 17:29:41,146 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 29 selfloop transitions, 2 changer transitions 0/317 dead transitions. [2024-11-22 17:29:41,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 317 transitions, 740 flow [2024-11-22 17:29:41,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:41,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:41,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 998 transitions. [2024-11-22 17:29:41,149 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9015356820234869 [2024-11-22 17:29:41,149 INFO L175 Difference]: Start difference. First operand has 324 places, 318 transitions, 680 flow. Second operand 3 states and 998 transitions. [2024-11-22 17:29:41,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 317 transitions, 740 flow [2024-11-22 17:29:41,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 317 transitions, 739 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:29:41,153 INFO L231 Difference]: Finished difference. Result has 324 places, 317 transitions, 681 flow [2024-11-22 17:29:41,154 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=681, PETRI_PLACES=324, PETRI_TRANSITIONS=317} [2024-11-22 17:29:41,155 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -29 predicate places. [2024-11-22 17:29:41,155 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 317 transitions, 681 flow [2024-11-22 17:29:41,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 323.3333333333333) internal successors, (970), 3 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:41,155 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:41,155 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] [2024-11-22 17:29:41,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 17:29:41,156 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-22 17:29:41,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:41,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1681384648, now seen corresponding path program 1 times [2024-11-22 17:29:41,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:41,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875662577] [2024-11-22 17:29:41,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:41,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:41,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:41,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:41,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875662577] [2024-11-22 17:29:41,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875662577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:41,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:41,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:41,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144016431] [2024-11-22 17:29:41,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:41,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:41,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:41,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:41,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:41,201 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 369 [2024-11-22 17:29:41,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 317 transitions, 681 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:41,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:41,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 369 [2024-11-22 17:29:41,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:41,629 INFO L124 PetriNetUnfolderBase]: 710/5735 cut-off events. [2024-11-22 17:29:41,629 INFO L125 PetriNetUnfolderBase]: For 204/204 co-relation queries the response was YES. [2024-11-22 17:29:41,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7195 conditions, 5735 events. 710/5735 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 57143 event pairs, 608 based on Foata normal form. 0/4836 useless extension candidates. Maximal degree in co-relation 7188. Up to 1136 conditions per place. [2024-11-22 17:29:41,666 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 25 selfloop transitions, 2 changer transitions 0/316 dead transitions. [2024-11-22 17:29:41,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 316 transitions, 733 flow [2024-11-22 17:29:41,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:41,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:41,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1006 transitions. [2024-11-22 17:29:41,668 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9087624209575429 [2024-11-22 17:29:41,668 INFO L175 Difference]: Start difference. First operand has 324 places, 317 transitions, 681 flow. Second operand 3 states and 1006 transitions. [2024-11-22 17:29:41,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 316 transitions, 733 flow [2024-11-22 17:29:41,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 316 transitions, 729 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:29:41,672 INFO L231 Difference]: Finished difference. Result has 323 places, 316 transitions, 679 flow [2024-11-22 17:29:41,673 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=675, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=679, PETRI_PLACES=323, PETRI_TRANSITIONS=316} [2024-11-22 17:29:41,673 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -30 predicate places. [2024-11-22 17:29:41,674 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 316 transitions, 679 flow [2024-11-22 17:29:41,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:41,674 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:41,674 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] [2024-11-22 17:29:41,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 17:29:41,675 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-22 17:29:41,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:41,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1684369097, now seen corresponding path program 1 times [2024-11-22 17:29:41,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:41,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400648532] [2024-11-22 17:29:41,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:41,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:41,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:41,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:41,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400648532] [2024-11-22 17:29:41,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400648532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:41,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:41,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:41,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512152084] [2024-11-22 17:29:41,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:41,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:41,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:41,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:41,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:41,721 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 369 [2024-11-22 17:29:41,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 316 transitions, 679 flow. Second operand has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:41,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:41,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 369 [2024-11-22 17:29:41,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:42,202 INFO L124 PetriNetUnfolderBase]: 548/4443 cut-off events. [2024-11-22 17:29:42,202 INFO L125 PetriNetUnfolderBase]: For 262/328 co-relation queries the response was YES. [2024-11-22 17:29:42,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5669 conditions, 4443 events. 548/4443 cut-off events. For 262/328 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 43155 event pairs, 472 based on Foata normal form. 0/3780 useless extension candidates. Maximal degree in co-relation 5662. Up to 932 conditions per place. [2024-11-22 17:29:42,230 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 26 selfloop transitions, 2 changer transitions 0/315 dead transitions. [2024-11-22 17:29:42,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 315 transitions, 733 flow [2024-11-22 17:29:42,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:42,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:42,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1004 transitions. [2024-11-22 17:29:42,232 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9069557362240289 [2024-11-22 17:29:42,232 INFO L175 Difference]: Start difference. First operand has 323 places, 316 transitions, 679 flow. Second operand 3 states and 1004 transitions. [2024-11-22 17:29:42,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 315 transitions, 733 flow [2024-11-22 17:29:42,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 315 transitions, 729 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:29:42,236 INFO L231 Difference]: Finished difference. Result has 322 places, 315 transitions, 677 flow [2024-11-22 17:29:42,236 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=677, PETRI_PLACES=322, PETRI_TRANSITIONS=315} [2024-11-22 17:29:42,237 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -31 predicate places. [2024-11-22 17:29:42,237 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 315 transitions, 677 flow [2024-11-22 17:29:42,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:42,238 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:42,238 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] [2024-11-22 17:29:42,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 17:29:42,238 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-22 17:29:42,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:42,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1005281314, now seen corresponding path program 1 times [2024-11-22 17:29:42,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:42,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986610754] [2024-11-22 17:29:42,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:42,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:42,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:42,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:42,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986610754] [2024-11-22 17:29:42,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986610754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:42,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:42,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:42,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935357735] [2024-11-22 17:29:42,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:42,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:42,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:42,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:42,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:42,296 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 369 [2024-11-22 17:29:42,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 315 transitions, 677 flow. Second operand has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:42,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:42,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 369 [2024-11-22 17:29:42,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:42,774 INFO L124 PetriNetUnfolderBase]: 570/5505 cut-off events. [2024-11-22 17:29:42,774 INFO L125 PetriNetUnfolderBase]: For 490/1428 co-relation queries the response was YES. [2024-11-22 17:29:42,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7038 conditions, 5505 events. 570/5505 cut-off events. For 490/1428 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 53460 event pairs, 436 based on Foata normal form. 0/4874 useless extension candidates. Maximal degree in co-relation 7031. Up to 1006 conditions per place. [2024-11-22 17:29:42,799 INFO L140 encePairwiseOnDemand]: 360/369 looper letters, 33 selfloop transitions, 1 changer transitions 0/307 dead transitions. [2024-11-22 17:29:42,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 307 transitions, 729 flow [2024-11-22 17:29:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:42,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:42,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 978 transitions. [2024-11-22 17:29:42,801 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8834688346883469 [2024-11-22 17:29:42,801 INFO L175 Difference]: Start difference. First operand has 322 places, 315 transitions, 677 flow. Second operand 3 states and 978 transitions. [2024-11-22 17:29:42,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 307 transitions, 729 flow [2024-11-22 17:29:42,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 307 transitions, 725 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:29:42,807 INFO L231 Difference]: Finished difference. Result has 314 places, 307 transitions, 659 flow [2024-11-22 17:29:42,807 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=659, PETRI_PLACES=314, PETRI_TRANSITIONS=307} [2024-11-22 17:29:42,808 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -39 predicate places. [2024-11-22 17:29:42,808 INFO L471 AbstractCegarLoop]: Abstraction has has 314 places, 307 transitions, 659 flow [2024-11-22 17:29:42,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:42,808 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:42,808 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] [2024-11-22 17:29:42,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 17:29:42,809 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-22 17:29:42,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:42,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1534519347, now seen corresponding path program 1 times [2024-11-22 17:29:42,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:42,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953559482] [2024-11-22 17:29:42,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:42,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:42,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:42,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:42,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953559482] [2024-11-22 17:29:42,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953559482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:42,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:42,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:42,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348671791] [2024-11-22 17:29:42,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:42,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:42,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:42,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:42,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:42,859 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 369 [2024-11-22 17:29:42,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 307 transitions, 659 flow. Second operand has 3 states, 3 states have (on average 322.0) internal successors, (966), 3 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:42,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:42,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 369 [2024-11-22 17:29:42,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:43,163 INFO L124 PetriNetUnfolderBase]: 382/3569 cut-off events. [2024-11-22 17:29:43,164 INFO L125 PetriNetUnfolderBase]: For 446/522 co-relation queries the response was YES. [2024-11-22 17:29:43,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4652 conditions, 3569 events. 382/3569 cut-off events. For 446/522 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 30324 event pairs, 276 based on Foata normal form. 0/3238 useless extension candidates. Maximal degree in co-relation 4645. Up to 682 conditions per place. [2024-11-22 17:29:43,189 INFO L140 encePairwiseOnDemand]: 363/369 looper letters, 27 selfloop transitions, 1 changer transitions 0/302 dead transitions. [2024-11-22 17:29:43,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 302 transitions, 705 flow [2024-11-22 17:29:43,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:43,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:43,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 996 transitions. [2024-11-22 17:29:43,191 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8997289972899729 [2024-11-22 17:29:43,191 INFO L175 Difference]: Start difference. First operand has 314 places, 307 transitions, 659 flow. Second operand 3 states and 996 transitions. [2024-11-22 17:29:43,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 302 transitions, 705 flow [2024-11-22 17:29:43,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 302 transitions, 704 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:29:43,194 INFO L231 Difference]: Finished difference. Result has 310 places, 302 transitions, 650 flow [2024-11-22 17:29:43,195 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=650, PETRI_PLACES=310, PETRI_TRANSITIONS=302} [2024-11-22 17:29:43,196 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -43 predicate places. [2024-11-22 17:29:43,196 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 302 transitions, 650 flow [2024-11-22 17:29:43,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 322.0) internal successors, (966), 3 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:43,197 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:43,197 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] [2024-11-22 17:29:43,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 17:29:43,197 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-22 17:29:43,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:43,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1987150306, now seen corresponding path program 1 times [2024-11-22 17:29:43,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:43,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574008427] [2024-11-22 17:29:43,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:43,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:43,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:43,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:43,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574008427] [2024-11-22 17:29:43,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574008427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:43,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:43,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:29:43,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821643444] [2024-11-22 17:29:43,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:43,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:29:43,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:43,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:29:43,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:29:43,698 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 369 [2024-11-22 17:29:43,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 302 transitions, 650 flow. Second operand has 6 states, 6 states have (on average 303.6666666666667) internal successors, (1822), 6 states have internal predecessors, (1822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:43,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:43,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 369 [2024-11-22 17:29:43,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:45,542 INFO L124 PetriNetUnfolderBase]: 3564/20549 cut-off events. [2024-11-22 17:29:45,542 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2024-11-22 17:29:45,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26964 conditions, 20549 events. 3564/20549 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 259523 event pairs, 3146 based on Foata normal form. 0/18494 useless extension candidates. Maximal degree in co-relation 26957. Up to 5453 conditions per place. [2024-11-22 17:29:45,626 INFO L140 encePairwiseOnDemand]: 362/369 looper letters, 69 selfloop transitions, 6 changer transitions 0/325 dead transitions. [2024-11-22 17:29:45,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 325 transitions, 846 flow [2024-11-22 17:29:45,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:29:45,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:29:45,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1888 transitions. [2024-11-22 17:29:45,630 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8527551942186089 [2024-11-22 17:29:45,630 INFO L175 Difference]: Start difference. First operand has 310 places, 302 transitions, 650 flow. Second operand 6 states and 1888 transitions. [2024-11-22 17:29:45,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 325 transitions, 846 flow [2024-11-22 17:29:45,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 325 transitions, 845 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:29:45,637 INFO L231 Difference]: Finished difference. Result has 313 places, 301 transitions, 659 flow [2024-11-22 17:29:45,638 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=659, PETRI_PLACES=313, PETRI_TRANSITIONS=301} [2024-11-22 17:29:45,638 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -40 predicate places. [2024-11-22 17:29:45,638 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 301 transitions, 659 flow [2024-11-22 17:29:45,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 303.6666666666667) internal successors, (1822), 6 states have internal predecessors, (1822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:45,639 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:45,639 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:29:45,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 17:29:45,640 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-22 17:29:45,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:45,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1365917146, now seen corresponding path program 1 times [2024-11-22 17:29:45,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:45,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081915461] [2024-11-22 17:29:45,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:45,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:45,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:45,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:45,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081915461] [2024-11-22 17:29:45,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081915461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:45,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:45,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 17:29:45,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439079583] [2024-11-22 17:29:45,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:45,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 17:29:45,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:45,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 17:29:45,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 17:29:45,806 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 369 [2024-11-22 17:29:45,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 301 transitions, 659 flow. Second operand has 4 states, 4 states have (on average 323.5) internal successors, (1294), 4 states have internal predecessors, (1294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:45,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:45,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 369 [2024-11-22 17:29:45,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:46,463 INFO L124 PetriNetUnfolderBase]: 842/6391 cut-off events. [2024-11-22 17:29:46,463 INFO L125 PetriNetUnfolderBase]: For 161/161 co-relation queries the response was YES. [2024-11-22 17:29:46,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8134 conditions, 6391 events. 842/6391 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 64485 event pairs, 643 based on Foata normal form. 50/5862 useless extension candidates. Maximal degree in co-relation 8127. Up to 913 conditions per place. [2024-11-22 17:29:46,492 INFO L140 encePairwiseOnDemand]: 356/369 looper letters, 64 selfloop transitions, 11 changer transitions 1/345 dead transitions. [2024-11-22 17:29:46,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 345 transitions, 923 flow [2024-11-22 17:29:46,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 17:29:46,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 17:29:46,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1366 transitions. [2024-11-22 17:29:46,495 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9254742547425474 [2024-11-22 17:29:46,495 INFO L175 Difference]: Start difference. First operand has 313 places, 301 transitions, 659 flow. Second operand 4 states and 1366 transitions. [2024-11-22 17:29:46,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 345 transitions, 923 flow [2024-11-22 17:29:46,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 345 transitions, 911 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 17:29:46,502 INFO L231 Difference]: Finished difference. Result has 313 places, 310 transitions, 729 flow [2024-11-22 17:29:46,502 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=729, PETRI_PLACES=313, PETRI_TRANSITIONS=310} [2024-11-22 17:29:46,502 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -40 predicate places. [2024-11-22 17:29:46,503 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 310 transitions, 729 flow [2024-11-22 17:29:46,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 323.5) internal successors, (1294), 4 states have internal predecessors, (1294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:46,503 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:46,503 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:29:46,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 17:29:46,504 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting funcAErr1ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-22 17:29:46,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:46,504 INFO L85 PathProgramCache]: Analyzing trace with hash -67031606, now seen corresponding path program 1 times [2024-11-22 17:29:46,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:46,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521293451] [2024-11-22 17:29:46,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:46,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:46,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:46,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:46,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521293451] [2024-11-22 17:29:46,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521293451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:46,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:46,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:46,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667497374] [2024-11-22 17:29:46,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:46,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:46,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:46,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:46,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:46,551 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 369 [2024-11-22 17:29:46,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 310 transitions, 729 flow. Second operand has 3 states, 3 states have (on average 330.6666666666667) internal successors, (992), 3 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:46,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:46,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 369 [2024-11-22 17:29:46,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:29:46,935 INFO L124 PetriNetUnfolderBase]: 306/3163 cut-off events. [2024-11-22 17:29:46,935 INFO L125 PetriNetUnfolderBase]: For 297/481 co-relation queries the response was YES. [2024-11-22 17:29:46,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4220 conditions, 3163 events. 306/3163 cut-off events. For 297/481 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 26629 event pairs, 204 based on Foata normal form. 2/2898 useless extension candidates. Maximal degree in co-relation 4211. Up to 523 conditions per place. [2024-11-22 17:29:46,949 INFO L140 encePairwiseOnDemand]: 363/369 looper letters, 32 selfloop transitions, 5 changer transitions 0/322 dead transitions. [2024-11-22 17:29:46,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 322 transitions, 836 flow [2024-11-22 17:29:46,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:29:46,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:29:46,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1025 transitions. [2024-11-22 17:29:46,951 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9259259259259259 [2024-11-22 17:29:46,951 INFO L175 Difference]: Start difference. First operand has 313 places, 310 transitions, 729 flow. Second operand 3 states and 1025 transitions. [2024-11-22 17:29:46,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 322 transitions, 836 flow [2024-11-22 17:29:46,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 322 transitions, 834 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:29:46,955 INFO L231 Difference]: Finished difference. Result has 316 places, 314 transitions, 765 flow [2024-11-22 17:29:46,956 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=765, PETRI_PLACES=316, PETRI_TRANSITIONS=314} [2024-11-22 17:29:46,956 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -37 predicate places. [2024-11-22 17:29:46,956 INFO L471 AbstractCegarLoop]: Abstraction has has 316 places, 314 transitions, 765 flow [2024-11-22 17:29:46,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 330.6666666666667) internal successors, (992), 3 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:46,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:46,957 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:29:46,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 17:29:46,957 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-22 17:29:46,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:46,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1639105714, now seen corresponding path program 1 times [2024-11-22 17:29:46,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:46,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233642817] [2024-11-22 17:29:46,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:46,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:29:46,983 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 17:29:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:29:47,030 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 17:29:47,030 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 17:29:47,031 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2024-11-22 17:29:47,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2024-11-22 17:29:47,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2024-11-22 17:29:47,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr2ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2024-11-22 17:29:47,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr3ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2024-11-22 17:29:47,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr4ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2024-11-22 17:29:47,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr5ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2024-11-22 17:29:47,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr6ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2024-11-22 17:29:47,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr7ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2024-11-22 17:29:47,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr8ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2024-11-22 17:29:47,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2024-11-22 17:29:47,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2024-11-22 17:29:47,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2024-11-22 17:29:47,037 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2024-11-22 17:29:47,037 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2024-11-22 17:29:47,037 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2024-11-22 17:29:47,038 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2024-11-22 17:29:47,038 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2024-11-22 17:29:47,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2024-11-22 17:29:47,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2024-11-22 17:29:47,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2024-11-22 17:29:47,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2024-11-22 17:29:47,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2024-11-22 17:29:47,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2024-11-22 17:29:47,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2024-11-22 17:29:47,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2024-11-22 17:29:47,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2024-11-22 17:29:47,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2024-11-22 17:29:47,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2024-11-22 17:29:47,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2024-11-22 17:29:47,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2024-11-22 17:29:47,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2024-11-22 17:29:47,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2024-11-22 17:29:47,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2024-11-22 17:29:47,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2024-11-22 17:29:47,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2024-11-22 17:29:47,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2024-11-22 17:29:47,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 65 remaining) [2024-11-22 17:29:47,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2024-11-22 17:29:47,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr1ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2024-11-22 17:29:47,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr2ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2024-11-22 17:29:47,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr3ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2024-11-22 17:29:47,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr4ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2024-11-22 17:29:47,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr5ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2024-11-22 17:29:47,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr6ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2024-11-22 17:29:47,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr7ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2024-11-22 17:29:47,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr8ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2024-11-22 17:29:47,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr0ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2024-11-22 17:29:47,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr1ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2024-11-22 17:29:47,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr2ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2024-11-22 17:29:47,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr3ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2024-11-22 17:29:47,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr4ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2024-11-22 17:29:47,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr5ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2024-11-22 17:29:47,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr6ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2024-11-22 17:29:47,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr7ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2024-11-22 17:29:47,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr8ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2024-11-22 17:29:47,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2024-11-22 17:29:47,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr1ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2024-11-22 17:29:47,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr2ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2024-11-22 17:29:47,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr3ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2024-11-22 17:29:47,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr4ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2024-11-22 17:29:47,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr5ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2024-11-22 17:29:47,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr6ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2024-11-22 17:29:47,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr7ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2024-11-22 17:29:47,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr8ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2024-11-22 17:29:47,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 17:29:47,045 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:29:47,047 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 17:29:47,047 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-22 17:29:47,091 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-22 17:29:47,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 463 places, 482 transitions, 1008 flow [2024-11-22 17:29:47,337 INFO L124 PetriNetUnfolderBase]: 163/1982 cut-off events. [2024-11-22 17:29:47,337 INFO L125 PetriNetUnfolderBase]: For 72/74 co-relation queries the response was YES. [2024-11-22 17:29:47,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2071 conditions, 1982 events. 163/1982 cut-off events. For 72/74 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 12454 event pairs, 1 based on Foata normal form. 0/1619 useless extension candidates. Maximal degree in co-relation 1175. Up to 32 conditions per place. [2024-11-22 17:29:47,368 INFO L82 GeneralOperation]: Start removeDead. Operand has 463 places, 482 transitions, 1008 flow [2024-11-22 17:29:47,385 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 463 places, 482 transitions, 1008 flow [2024-11-22 17:29:47,388 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:29:47,388 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;@3b573451, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:29:47,388 INFO L334 AbstractCegarLoop]: Starting to check reachability of 83 error locations. [2024-11-22 17:29:47,389 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:29:47,390 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-11-22 17:29:47,390 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:29:47,390 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:29:47,390 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] [2024-11-22 17:29:47,390 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-11-22 17:29:47,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:29:47,390 INFO L85 PathProgramCache]: Analyzing trace with hash -2114103926, now seen corresponding path program 1 times [2024-11-22 17:29:47,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:29:47,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787411625] [2024-11-22 17:29:47,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:29:47,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:29:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:29:47,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:29:47,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:29:47,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787411625] [2024-11-22 17:29:47,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787411625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:29:47,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:29:47,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:29:47,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989879424] [2024-11-22 17:29:47,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:29:47,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:29:47,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:29:47,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:29:47,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:29:47,424 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 482 [2024-11-22 17:29:47,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 482 transitions, 1008 flow. Second operand has 3 states, 3 states have (on average 417.6666666666667) internal successors, (1253), 3 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:29:47,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:29:47,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 482 [2024-11-22 17:29:47,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:30:08,846 INFO L124 PetriNetUnfolderBase]: 33456/146489 cut-off events. [2024-11-22 17:30:08,846 INFO L125 PetriNetUnfolderBase]: For 12029/12029 co-relation queries the response was YES. [2024-11-22 17:30:10,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194932 conditions, 146489 events. 33456/146489 cut-off events. For 12029/12029 co-relation queries the response was YES. Maximal size of possible extension queue 2630. Compared 2357262 event pairs, 30562 based on Foata normal form. 17228/140824 useless extension candidates. Maximal degree in co-relation 160782. Up to 43633 conditions per place. [2024-11-22 17:30:11,515 INFO L140 encePairwiseOnDemand]: 461/482 looper letters, 42 selfloop transitions, 1 changer transitions 8/458 dead transitions. [2024-11-22 17:30:11,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 458 transitions, 1046 flow [2024-11-22 17:30:11,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:30:11,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:30:11,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2024-11-22 17:30:11,518 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9087136929460581 [2024-11-22 17:30:11,518 INFO L175 Difference]: Start difference. First operand has 463 places, 482 transitions, 1008 flow. Second operand 3 states and 1314 transitions. [2024-11-22 17:30:11,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 458 transitions, 1046 flow [2024-11-22 17:30:11,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 458 transitions, 1046 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:30:11,560 INFO L231 Difference]: Finished difference. Result has 457 places, 450 transitions, 946 flow [2024-11-22 17:30:11,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=482, PETRI_DIFFERENCE_MINUEND_FLOW=960, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=946, PETRI_PLACES=457, PETRI_TRANSITIONS=450} [2024-11-22 17:30:11,560 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -6 predicate places. [2024-11-22 17:30:11,560 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 450 transitions, 946 flow [2024-11-22 17:30:11,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 417.6666666666667) internal successors, (1253), 3 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:30:11,561 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:30:11,561 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] [2024-11-22 17:30:11,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 17:30:11,561 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-11-22 17:30:11,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:30:11,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1112583956, now seen corresponding path program 1 times [2024-11-22 17:30:11,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:30:11,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054779383] [2024-11-22 17:30:11,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:30:11,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:30:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:30:11,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:30:11,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:30:11,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054779383] [2024-11-22 17:30:11,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054779383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:30:11,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:30:11,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:30:11,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665426275] [2024-11-22 17:30:11,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:30:11,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:30:11,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:30:11,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:30:11,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:30:11,590 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 427 out of 482 [2024-11-22 17:30:11,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 450 transitions, 946 flow. Second operand has 3 states, 3 states have (on average 427.6666666666667) internal successors, (1283), 3 states have internal predecessors, (1283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:30:11,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:30:11,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 427 of 482 [2024-11-22 17:30:11,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand