./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/twostage_3-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/twostage_3-race.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 c1c75e051173a22f60f33f26eab32e0b3a7dcaf46f2d4cc494d0c9d8775c984e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:25:04,148 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:25:04,205 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:25:04,210 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:25:04,211 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:25:04,235 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:25:04,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:25:04,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:25:04,237 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:25:04,238 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:25:04,239 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:25:04,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:25:04,241 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:25:04,256 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:25:04,256 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:25:04,256 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:25:04,256 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:25:04,257 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:25:04,257 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:25:04,257 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:25:04,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:25:04,260 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:25:04,260 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:25:04,260 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:25:04,260 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:25:04,260 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:25:04,261 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:25:04,261 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:25:04,261 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:25:04,261 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:25:04,262 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:25:04,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:25:04,262 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:25:04,262 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:25:04,263 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:25:04,263 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:25:04,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:25:04,263 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:25:04,263 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:25:04,263 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:25:04,264 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:25:04,264 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1c75e051173a22f60f33f26eab32e0b3a7dcaf46f2d4cc494d0c9d8775c984e [2024-11-20 13:25:04,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:25:04,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:25:04,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:25:04,473 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:25:04,473 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:25:04,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/twostage_3-race.i [2024-11-20 13:25:05,659 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:25:05,901 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:25:05,902 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/twostage_3-race.i [2024-11-20 13:25:05,923 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1329e71cf/c1fc2a6c861945c1b303329be0b6359b/FLAGb7a4a685e [2024-11-20 13:25:05,937 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1329e71cf/c1fc2a6c861945c1b303329be0b6359b [2024-11-20 13:25:05,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:25:05,940 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:25:05,942 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:25:05,942 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:25:05,950 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:25:05,950 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:25:05" (1/1) ... [2024-11-20 13:25:05,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a9b6ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:05, skipping insertion in model container [2024-11-20 13:25:05,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:25:05" (1/1) ... [2024-11-20 13:25:05,993 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:25:06,394 WARN L1674 CHandler]: Possible shadowing of function lock [2024-11-20 13:25:06,396 WARN L1674 CHandler]: Possible shadowing of function lock [2024-11-20 13:25:06,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:25:06,407 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:25:06,458 WARN L1674 CHandler]: Possible shadowing of function lock [2024-11-20 13:25:06,460 WARN L1674 CHandler]: Possible shadowing of function lock [2024-11-20 13:25:06,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:25:06,525 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:25:06,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:06 WrapperNode [2024-11-20 13:25:06,525 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:25:06,526 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:25:06,526 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:25:06,526 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:25:06,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:06" (1/1) ... [2024-11-20 13:25:06,555 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:06" (1/1) ... [2024-11-20 13:25:06,588 INFO L138 Inliner]: procedures = 373, calls = 32, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 276 [2024-11-20 13:25:06,589 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:25:06,590 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:25:06,590 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:25:06,590 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:25:06,597 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:06" (1/1) ... [2024-11-20 13:25:06,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:06" (1/1) ... [2024-11-20 13:25:06,602 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:06" (1/1) ... [2024-11-20 13:25:06,604 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:06" (1/1) ... [2024-11-20 13:25:06,618 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:06" (1/1) ... [2024-11-20 13:25:06,623 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:06" (1/1) ... [2024-11-20 13:25:06,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:06" (1/1) ... [2024-11-20 13:25:06,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:06" (1/1) ... [2024-11-20 13:25:06,634 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:25:06,635 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:25:06,635 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:25:06,635 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:25:06,636 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:06" (1/1) ... [2024-11-20 13:25:06,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:25:06,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:25:06,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 13:25:06,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 13:25:06,699 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2024-11-20 13:25:06,700 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2024-11-20 13:25:06,700 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2024-11-20 13:25:06,700 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2024-11-20 13:25:06,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 13:25:06,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 13:25:06,700 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:25:06,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:25:06,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 13:25:06,700 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:25:06,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 13:25:06,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:25:06,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:25:06,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:25:06,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:25:06,703 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:25:06,812 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:25:06,814 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:25:07,151 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:25:07,151 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:25:07,177 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:25:07,181 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-20 13:25:07,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:25:07 BoogieIcfgContainer [2024-11-20 13:25:07,181 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:25:07,183 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:25:07,183 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:25:07,185 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:25:07,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:25:05" (1/3) ... [2024-11-20 13:25:07,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ffcadfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:25:07, skipping insertion in model container [2024-11-20 13:25:07,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:06" (2/3) ... [2024-11-20 13:25:07,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ffcadfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:25:07, skipping insertion in model container [2024-11-20 13:25:07,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:25:07" (3/3) ... [2024-11-20 13:25:07,189 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3-race.i [2024-11-20 13:25:07,232 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:25:07,232 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 43 error locations. [2024-11-20 13:25:07,233 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:25:07,341 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-20 13:25:07,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 341 places, 357 transitions, 734 flow [2024-11-20 13:25:07,511 INFO L124 PetriNetUnfolderBase]: 43/670 cut-off events. [2024-11-20 13:25:07,512 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-20 13:25:07,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 670 events. 43/670 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2836 event pairs, 0 based on Foata normal form. 0/544 useless extension candidates. Maximal degree in co-relation 354. Up to 8 conditions per place. [2024-11-20 13:25:07,527 INFO L82 GeneralOperation]: Start removeDead. Operand has 341 places, 357 transitions, 734 flow [2024-11-20 13:25:07,534 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 341 places, 357 transitions, 734 flow [2024-11-20 13:25:07,545 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:25:07,551 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;@484358b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:25:07,551 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-11-20 13:25:07,554 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:25:07,554 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-11-20 13:25:07,554 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:25:07,555 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:07,555 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] [2024-11-20 13:25:07,555 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-20 13:25:07,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:07,563 INFO L85 PathProgramCache]: Analyzing trace with hash 910202385, now seen corresponding path program 1 times [2024-11-20 13:25:07,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:07,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39798863] [2024-11-20 13:25:07,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:07,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:07,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:07,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:07,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39798863] [2024-11-20 13:25:07,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39798863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:07,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:07,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:07,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720961827] [2024-11-20 13:25:07,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:07,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:07,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:07,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:07,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:07,778 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 357 [2024-11-20 13:25:07,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 357 transitions, 734 flow. Second operand has 3 states, 3 states have (on average 314.6666666666667) internal successors, (944), 3 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:07,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:07,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 357 [2024-11-20 13:25:07,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:08,057 INFO L124 PetriNetUnfolderBase]: 197/2060 cut-off events. [2024-11-20 13:25:08,057 INFO L125 PetriNetUnfolderBase]: For 88/88 co-relation queries the response was YES. [2024-11-20 13:25:08,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2444 conditions, 2060 events. 197/2060 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 15343 event pairs, 166 based on Foata normal form. 186/1888 useless extension candidates. Maximal degree in co-relation 1786. Up to 338 conditions per place. [2024-11-20 13:25:08,072 INFO L140 encePairwiseOnDemand]: 338/357 looper letters, 23 selfloop transitions, 1 changer transitions 8/337 dead transitions. [2024-11-20 13:25:08,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 337 transitions, 742 flow [2024-11-20 13:25:08,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:08,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:08,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 984 transitions. [2024-11-20 13:25:08,088 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9187675070028011 [2024-11-20 13:25:08,092 INFO L175 Difference]: Start difference. First operand has 341 places, 357 transitions, 734 flow. Second operand 3 states and 984 transitions. [2024-11-20 13:25:08,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 337 transitions, 742 flow [2024-11-20 13:25:08,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 337 transitions, 742 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:25:08,102 INFO L231 Difference]: Finished difference. Result has 337 places, 329 transitions, 680 flow [2024-11-20 13:25:08,104 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=337, PETRI_TRANSITIONS=329} [2024-11-20 13:25:08,108 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -4 predicate places. [2024-11-20 13:25:08,108 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 329 transitions, 680 flow [2024-11-20 13:25:08,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 314.6666666666667) internal successors, (944), 3 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:08,109 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:08,109 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] [2024-11-20 13:25:08,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:25:08,110 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-20 13:25:08,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:08,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1848534103, now seen corresponding path program 1 times [2024-11-20 13:25:08,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:08,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121748881] [2024-11-20 13:25:08,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:08,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:08,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:08,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:08,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121748881] [2024-11-20 13:25:08,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121748881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:08,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:08,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:08,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176542667] [2024-11-20 13:25:08,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:08,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:08,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:08,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:08,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:08,239 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 357 [2024-11-20 13:25:08,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 329 transitions, 680 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) [2024-11-20 13:25:08,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:08,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 357 [2024-11-20 13:25:08,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:08,552 INFO L124 PetriNetUnfolderBase]: 120/2428 cut-off events. [2024-11-20 13:25:08,552 INFO L125 PetriNetUnfolderBase]: For 242/302 co-relation queries the response was YES. [2024-11-20 13:25:08,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2743 conditions, 2428 events. 120/2428 cut-off events. For 242/302 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 18350 event pairs, 84 based on Foata normal form. 0/2035 useless extension candidates. Maximal degree in co-relation 1341. Up to 113 conditions per place. [2024-11-20 13:25:08,571 INFO L140 encePairwiseOnDemand]: 355/357 looper letters, 31 selfloop transitions, 1 changer transitions 0/343 dead transitions. [2024-11-20 13:25:08,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 343 transitions, 790 flow [2024-11-20 13:25:08,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:08,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:08,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1005 transitions. [2024-11-20 13:25:08,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.938375350140056 [2024-11-20 13:25:08,574 INFO L175 Difference]: Start difference. First operand has 337 places, 329 transitions, 680 flow. Second operand 3 states and 1005 transitions. [2024-11-20 13:25:08,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 343 transitions, 790 flow [2024-11-20 13:25:08,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 343 transitions, 789 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:25:08,579 INFO L231 Difference]: Finished difference. Result has 329 places, 328 transitions, 679 flow [2024-11-20 13:25:08,580 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=679, PETRI_PLACES=329, PETRI_TRANSITIONS=328} [2024-11-20 13:25:08,580 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -12 predicate places. [2024-11-20 13:25:08,580 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 328 transitions, 679 flow [2024-11-20 13:25:08,581 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) [2024-11-20 13:25:08,581 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:08,581 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] [2024-11-20 13:25:08,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:25:08,581 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-20 13:25:08,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:08,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1470256589, now seen corresponding path program 1 times [2024-11-20 13:25:08,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:08,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308198907] [2024-11-20 13:25:08,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:08,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:08,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:08,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:08,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308198907] [2024-11-20 13:25:08,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308198907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:08,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:08,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:08,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422077083] [2024-11-20 13:25:08,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:08,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:08,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:08,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:08,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:08,647 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 357 [2024-11-20 13:25:08,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 328 transitions, 679 flow. Second operand has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:08,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:08,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 357 [2024-11-20 13:25:08,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:08,994 INFO L124 PetriNetUnfolderBase]: 544/3303 cut-off events. [2024-11-20 13:25:08,995 INFO L125 PetriNetUnfolderBase]: For 266/326 co-relation queries the response was YES. [2024-11-20 13:25:09,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4410 conditions, 3303 events. 544/3303 cut-off events. For 266/326 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 27111 event pairs, 116 based on Foata normal form. 5/2897 useless extension candidates. Maximal degree in co-relation 2202. Up to 785 conditions per place. [2024-11-20 13:25:09,012 INFO L140 encePairwiseOnDemand]: 341/357 looper letters, 33 selfloop transitions, 5 changer transitions 11/335 dead transitions. [2024-11-20 13:25:09,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 335 transitions, 785 flow [2024-11-20 13:25:09,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:09,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:09,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 960 transitions. [2024-11-20 13:25:09,014 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.896358543417367 [2024-11-20 13:25:09,014 INFO L175 Difference]: Start difference. First operand has 329 places, 328 transitions, 679 flow. Second operand 3 states and 960 transitions. [2024-11-20 13:25:09,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 335 transitions, 785 flow [2024-11-20 13:25:09,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 335 transitions, 784 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:25:09,018 INFO L231 Difference]: Finished difference. Result has 323 places, 313 transitions, 667 flow [2024-11-20 13:25:09,019 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=667, PETRI_PLACES=323, PETRI_TRANSITIONS=313} [2024-11-20 13:25:09,019 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -18 predicate places. [2024-11-20 13:25:09,020 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 313 transitions, 667 flow [2024-11-20 13:25:09,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:09,020 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:09,020 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] [2024-11-20 13:25:09,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:25:09,021 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-20 13:25:09,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:09,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1514930101, now seen corresponding path program 1 times [2024-11-20 13:25:09,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:09,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888137080] [2024-11-20 13:25:09,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:09,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:09,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:09,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:09,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888137080] [2024-11-20 13:25:09,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888137080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:09,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:09,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:09,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118831881] [2024-11-20 13:25:09,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:09,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:09,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:09,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:09,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:09,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 357 [2024-11-20 13:25:09,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 313 transitions, 667 flow. Second operand has 3 states, 3 states have (on average 314.6666666666667) internal successors, (944), 3 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:09,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:09,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 357 [2024-11-20 13:25:09,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:09,559 INFO L124 PetriNetUnfolderBase]: 644/5442 cut-off events. [2024-11-20 13:25:09,560 INFO L125 PetriNetUnfolderBase]: For 176/176 co-relation queries the response was YES. [2024-11-20 13:25:09,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6763 conditions, 5442 events. 644/5442 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 52891 event pairs, 548 based on Foata normal form. 0/4586 useless extension candidates. Maximal degree in co-relation 6140. Up to 1038 conditions per place. [2024-11-20 13:25:09,589 INFO L140 encePairwiseOnDemand]: 351/357 looper letters, 23 selfloop transitions, 2 changer transitions 0/310 dead transitions. [2024-11-20 13:25:09,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 310 transitions, 711 flow [2024-11-20 13:25:09,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:09,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:09,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 971 transitions. [2024-11-20 13:25:09,591 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9066293183940243 [2024-11-20 13:25:09,592 INFO L175 Difference]: Start difference. First operand has 323 places, 313 transitions, 667 flow. Second operand 3 states and 971 transitions. [2024-11-20 13:25:09,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 310 transitions, 711 flow [2024-11-20 13:25:09,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 310 transitions, 711 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:25:09,598 INFO L231 Difference]: Finished difference. Result has 313 places, 310 transitions, 669 flow [2024-11-20 13:25:09,598 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=659, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=669, PETRI_PLACES=313, PETRI_TRANSITIONS=310} [2024-11-20 13:25:09,599 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -28 predicate places. [2024-11-20 13:25:09,599 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 310 transitions, 669 flow [2024-11-20 13:25:09,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 314.6666666666667) internal successors, (944), 3 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:09,600 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:09,600 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] [2024-11-20 13:25:09,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:25:09,600 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-20 13:25:09,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:09,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1222702185, now seen corresponding path program 1 times [2024-11-20 13:25:09,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:09,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604684224] [2024-11-20 13:25:09,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:09,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:09,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:09,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:09,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604684224] [2024-11-20 13:25:09,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604684224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:09,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:09,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:09,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263724654] [2024-11-20 13:25:09,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:09,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:09,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:09,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:09,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:09,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 357 [2024-11-20 13:25:09,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 310 transitions, 669 flow. Second operand has 3 states, 3 states have (on average 317.3333333333333) internal successors, (952), 3 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:09,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:09,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 357 [2024-11-20 13:25:09,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:10,071 INFO L124 PetriNetUnfolderBase]: 396/3957 cut-off events. [2024-11-20 13:25:10,071 INFO L125 PetriNetUnfolderBase]: For 176/176 co-relation queries the response was YES. [2024-11-20 13:25:10,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4869 conditions, 3957 events. 396/3957 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 36208 event pairs, 324 based on Foata normal form. 0/3350 useless extension candidates. Maximal degree in co-relation 4413. Up to 666 conditions per place. [2024-11-20 13:25:10,095 INFO L140 encePairwiseOnDemand]: 354/357 looper letters, 23 selfloop transitions, 2 changer transitions 0/309 dead transitions. [2024-11-20 13:25:10,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 309 transitions, 717 flow [2024-11-20 13:25:10,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:10,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:10,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 974 transitions. [2024-11-20 13:25:10,097 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9094304388422035 [2024-11-20 13:25:10,097 INFO L175 Difference]: Start difference. First operand has 313 places, 310 transitions, 669 flow. Second operand 3 states and 974 transitions. [2024-11-20 13:25:10,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 309 transitions, 717 flow [2024-11-20 13:25:10,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 309 transitions, 717 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:25:10,102 INFO L231 Difference]: Finished difference. Result has 314 places, 309 transitions, 671 flow [2024-11-20 13:25:10,102 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=671, PETRI_PLACES=314, PETRI_TRANSITIONS=309} [2024-11-20 13:25:10,104 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -27 predicate places. [2024-11-20 13:25:10,104 INFO L471 AbstractCegarLoop]: Abstraction has has 314 places, 309 transitions, 671 flow [2024-11-20 13:25:10,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 317.3333333333333) internal successors, (952), 3 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:10,105 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:10,105 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] [2024-11-20 13:25:10,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:25:10,105 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-20 13:25:10,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:10,107 INFO L85 PathProgramCache]: Analyzing trace with hash -14140382, now seen corresponding path program 1 times [2024-11-20 13:25:10,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:10,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071736749] [2024-11-20 13:25:10,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:10,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:10,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:10,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:10,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071736749] [2024-11-20 13:25:10,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071736749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:10,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:10,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:25:10,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146745793] [2024-11-20 13:25:10,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:10,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:10,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:10,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:10,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:10,149 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 357 [2024-11-20 13:25:10,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 309 transitions, 671 flow. Second operand has 3 states, 3 states have (on average 318.6666666666667) internal successors, (956), 3 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:10,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:10,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 357 [2024-11-20 13:25:10,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:10,414 INFO L124 PetriNetUnfolderBase]: 260/3163 cut-off events. [2024-11-20 13:25:10,414 INFO L125 PetriNetUnfolderBase]: For 242/302 co-relation queries the response was YES. [2024-11-20 13:25:10,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3830 conditions, 3163 events. 260/3163 cut-off events. For 242/302 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 27525 event pairs, 200 based on Foata normal form. 2/2672 useless extension candidates. Maximal degree in co-relation 3465. Up to 444 conditions per place. [2024-11-20 13:25:10,431 INFO L140 encePairwiseOnDemand]: 355/357 looper letters, 22 selfloop transitions, 0 changer transitions 1/308 dead transitions. [2024-11-20 13:25:10,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 308 transitions, 712 flow [2024-11-20 13:25:10,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:10,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:10,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 975 transitions. [2024-11-20 13:25:10,434 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9103641456582633 [2024-11-20 13:25:10,434 INFO L175 Difference]: Start difference. First operand has 314 places, 309 transitions, 671 flow. Second operand 3 states and 975 transitions. [2024-11-20 13:25:10,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 308 transitions, 712 flow [2024-11-20 13:25:10,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 308 transitions, 704 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-20 13:25:10,439 INFO L231 Difference]: Finished difference. Result has 313 places, 307 transitions, 658 flow [2024-11-20 13:25:10,440 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=658, PETRI_PLACES=313, PETRI_TRANSITIONS=307} [2024-11-20 13:25:10,441 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -28 predicate places. [2024-11-20 13:25:10,442 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 307 transitions, 658 flow [2024-11-20 13:25:10,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 318.6666666666667) internal successors, (956), 3 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:10,442 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:10,443 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] [2024-11-20 13:25:10,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 13:25:10,443 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-20 13:25:10,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:10,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1544380408, now seen corresponding path program 1 times [2024-11-20 13:25:10,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:10,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333772209] [2024-11-20 13:25:10,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:10,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:10,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:10,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:10,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333772209] [2024-11-20 13:25:10,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333772209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:10,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:10,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:10,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210881782] [2024-11-20 13:25:10,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:10,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:10,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:10,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:10,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:10,503 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 357 [2024-11-20 13:25:10,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 307 transitions, 658 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) [2024-11-20 13:25:10,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:10,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 357 [2024-11-20 13:25:10,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:10,717 INFO L124 PetriNetUnfolderBase]: 122/2376 cut-off events. [2024-11-20 13:25:10,717 INFO L125 PetriNetUnfolderBase]: For 242/302 co-relation queries the response was YES. [2024-11-20 13:25:10,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2794 conditions, 2376 events. 122/2376 cut-off events. For 242/302 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 17920 event pairs, 84 based on Foata normal form. 0/2064 useless extension candidates. Maximal degree in co-relation 2787. Up to 113 conditions per place. [2024-11-20 13:25:10,732 INFO L140 encePairwiseOnDemand]: 355/357 looper letters, 31 selfloop transitions, 1 changer transitions 0/321 dead transitions. [2024-11-20 13:25:10,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 321 transitions, 768 flow [2024-11-20 13:25:10,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:10,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:10,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1005 transitions. [2024-11-20 13:25:10,734 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.938375350140056 [2024-11-20 13:25:10,735 INFO L175 Difference]: Start difference. First operand has 313 places, 307 transitions, 658 flow. Second operand 3 states and 1005 transitions. [2024-11-20 13:25:10,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 321 transitions, 768 flow [2024-11-20 13:25:10,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 321 transitions, 766 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-20 13:25:10,740 INFO L231 Difference]: Finished difference. Result has 312 places, 306 transitions, 656 flow [2024-11-20 13:25:10,740 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=656, PETRI_PLACES=312, PETRI_TRANSITIONS=306} [2024-11-20 13:25:10,741 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -29 predicate places. [2024-11-20 13:25:10,741 INFO L471 AbstractCegarLoop]: Abstraction has has 312 places, 306 transitions, 656 flow [2024-11-20 13:25:10,742 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) [2024-11-20 13:25:10,742 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:10,742 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] [2024-11-20 13:25:10,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:25:10,742 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-20 13:25:10,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:10,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1553545500, now seen corresponding path program 1 times [2024-11-20 13:25:10,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:10,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540143907] [2024-11-20 13:25:10,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:10,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:10,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:10,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:10,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540143907] [2024-11-20 13:25:10,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540143907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:10,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:10,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:10,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880609630] [2024-11-20 13:25:10,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:10,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:10,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:10,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:10,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:10,803 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 357 [2024-11-20 13:25:10,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 306 transitions, 656 flow. Second operand has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:10,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:10,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 357 [2024-11-20 13:25:10,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:11,241 INFO L124 PetriNetUnfolderBase]: 488/4220 cut-off events. [2024-11-20 13:25:11,242 INFO L125 PetriNetUnfolderBase]: For 390/534 co-relation queries the response was YES. [2024-11-20 13:25:11,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5330 conditions, 4220 events. 488/4220 cut-off events. For 390/534 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 39518 event pairs, 412 based on Foata normal form. 0/3508 useless extension candidates. Maximal degree in co-relation 5323. Up to 830 conditions per place. [2024-11-20 13:25:11,268 INFO L140 encePairwiseOnDemand]: 354/357 looper letters, 25 selfloop transitions, 2 changer transitions 0/305 dead transitions. [2024-11-20 13:25:11,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 305 transitions, 708 flow [2024-11-20 13:25:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:11,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:11,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 970 transitions. [2024-11-20 13:25:11,271 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9056956115779645 [2024-11-20 13:25:11,271 INFO L175 Difference]: Start difference. First operand has 312 places, 306 transitions, 656 flow. Second operand 3 states and 970 transitions. [2024-11-20 13:25:11,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 305 transitions, 708 flow [2024-11-20 13:25:11,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 305 transitions, 707 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:25:11,279 INFO L231 Difference]: Finished difference. Result has 312 places, 305 transitions, 657 flow [2024-11-20 13:25:11,280 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=653, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=657, PETRI_PLACES=312, PETRI_TRANSITIONS=305} [2024-11-20 13:25:11,280 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -29 predicate places. [2024-11-20 13:25:11,280 INFO L471 AbstractCegarLoop]: Abstraction has has 312 places, 305 transitions, 657 flow [2024-11-20 13:25:11,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:11,281 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:11,281 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] [2024-11-20 13:25:11,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 13:25:11,282 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-20 13:25:11,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:11,282 INFO L85 PathProgramCache]: Analyzing trace with hash 142865269, now seen corresponding path program 1 times [2024-11-20 13:25:11,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:11,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86111597] [2024-11-20 13:25:11,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:11,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:11,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:11,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:11,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86111597] [2024-11-20 13:25:11,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86111597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:11,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:11,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:11,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389003933] [2024-11-20 13:25:11,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:11,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:11,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:11,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:11,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:11,335 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 357 [2024-11-20 13:25:11,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 305 transitions, 657 flow. Second operand has 3 states, 3 states have (on average 317.3333333333333) internal successors, (952), 3 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:11,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:11,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 357 [2024-11-20 13:25:11,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:11,718 INFO L124 PetriNetUnfolderBase]: 514/4563 cut-off events. [2024-11-20 13:25:11,719 INFO L125 PetriNetUnfolderBase]: For 176/176 co-relation queries the response was YES. [2024-11-20 13:25:11,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5667 conditions, 4563 events. 514/4563 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 43413 event pairs, 432 based on Foata normal form. 0/3846 useless extension candidates. Maximal degree in co-relation 5660. Up to 836 conditions per place. [2024-11-20 13:25:11,740 INFO L140 encePairwiseOnDemand]: 354/357 looper letters, 23 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2024-11-20 13:25:11,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 304 transitions, 705 flow [2024-11-20 13:25:11,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:11,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:11,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 974 transitions. [2024-11-20 13:25:11,742 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9094304388422035 [2024-11-20 13:25:11,742 INFO L175 Difference]: Start difference. First operand has 312 places, 305 transitions, 657 flow. Second operand 3 states and 974 transitions. [2024-11-20 13:25:11,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 304 transitions, 705 flow [2024-11-20 13:25:11,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 304 transitions, 701 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:25:11,746 INFO L231 Difference]: Finished difference. Result has 311 places, 304 transitions, 655 flow [2024-11-20 13:25:11,746 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=651, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=655, PETRI_PLACES=311, PETRI_TRANSITIONS=304} [2024-11-20 13:25:11,747 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -30 predicate places. [2024-11-20 13:25:11,747 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 304 transitions, 655 flow [2024-11-20 13:25:11,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 317.3333333333333) internal successors, (952), 3 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:11,748 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:11,748 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] [2024-11-20 13:25:11,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 13:25:11,748 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-20 13:25:11,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:11,748 INFO L85 PathProgramCache]: Analyzing trace with hash 176779462, now seen corresponding path program 1 times [2024-11-20 13:25:11,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:11,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499268644] [2024-11-20 13:25:11,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:11,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:11,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:11,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:11,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499268644] [2024-11-20 13:25:11,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499268644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:11,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:11,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:11,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053793157] [2024-11-20 13:25:11,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:11,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:11,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:11,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:11,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:11,798 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 357 [2024-11-20 13:25:11,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 304 transitions, 655 flow. Second operand has 3 states, 3 states have (on average 316.3333333333333) internal successors, (949), 3 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:11,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:11,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 357 [2024-11-20 13:25:11,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:12,124 INFO L124 PetriNetUnfolderBase]: 440/3867 cut-off events. [2024-11-20 13:25:12,124 INFO L125 PetriNetUnfolderBase]: For 310/386 co-relation queries the response was YES. [2024-11-20 13:25:12,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4885 conditions, 3867 events. 440/3867 cut-off events. For 310/386 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 35861 event pairs, 368 based on Foata normal form. 0/3282 useless extension candidates. Maximal degree in co-relation 4878. Up to 748 conditions per place. [2024-11-20 13:25:12,138 INFO L140 encePairwiseOnDemand]: 354/357 looper letters, 24 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2024-11-20 13:25:12,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 303 transitions, 705 flow [2024-11-20 13:25:12,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:12,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:12,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 972 transitions. [2024-11-20 13:25:12,140 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.907563025210084 [2024-11-20 13:25:12,140 INFO L175 Difference]: Start difference. First operand has 311 places, 304 transitions, 655 flow. Second operand 3 states and 972 transitions. [2024-11-20 13:25:12,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 303 transitions, 705 flow [2024-11-20 13:25:12,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 303 transitions, 701 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:25:12,144 INFO L231 Difference]: Finished difference. Result has 310 places, 303 transitions, 653 flow [2024-11-20 13:25:12,144 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=653, PETRI_PLACES=310, PETRI_TRANSITIONS=303} [2024-11-20 13:25:12,145 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -31 predicate places. [2024-11-20 13:25:12,145 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 303 transitions, 653 flow [2024-11-20 13:25:12,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 316.3333333333333) internal successors, (949), 3 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:12,145 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:12,145 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] [2024-11-20 13:25:12,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 13:25:12,146 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-20 13:25:12,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:12,146 INFO L85 PathProgramCache]: Analyzing trace with hash -733044172, now seen corresponding path program 1 times [2024-11-20 13:25:12,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:12,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668377060] [2024-11-20 13:25:12,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:12,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:12,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:12,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:12,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668377060] [2024-11-20 13:25:12,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668377060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:12,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:12,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:12,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325806674] [2024-11-20 13:25:12,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:12,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:12,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:12,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:12,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:12,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 357 [2024-11-20 13:25:12,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 303 transitions, 653 flow. Second operand has 3 states, 3 states have (on average 309.0) internal successors, (927), 3 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:12,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:12,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 357 [2024-11-20 13:25:12,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:12,506 INFO L124 PetriNetUnfolderBase]: 362/4085 cut-off events. [2024-11-20 13:25:12,506 INFO L125 PetriNetUnfolderBase]: For 594/1586 co-relation queries the response was YES. [2024-11-20 13:25:12,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5110 conditions, 4085 events. 362/4085 cut-off events. For 594/1586 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 37880 event pairs, 268 based on Foata normal form. 0/3580 useless extension candidates. Maximal degree in co-relation 5103. Up to 630 conditions per place. [2024-11-20 13:25:12,536 INFO L140 encePairwiseOnDemand]: 350/357 looper letters, 27 selfloop transitions, 1 changer transitions 0/297 dead transitions. [2024-11-20 13:25:12,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 297 transitions, 697 flow [2024-11-20 13:25:12,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:12,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:12,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 958 transitions. [2024-11-20 13:25:12,538 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8944911297852475 [2024-11-20 13:25:12,538 INFO L175 Difference]: Start difference. First operand has 310 places, 303 transitions, 653 flow. Second operand 3 states and 958 transitions. [2024-11-20 13:25:12,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 297 transitions, 697 flow [2024-11-20 13:25:12,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 297 transitions, 693 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:25:12,543 INFO L231 Difference]: Finished difference. Result has 304 places, 297 transitions, 639 flow [2024-11-20 13:25:12,543 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=639, PETRI_PLACES=304, PETRI_TRANSITIONS=297} [2024-11-20 13:25:12,543 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -37 predicate places. [2024-11-20 13:25:12,544 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 297 transitions, 639 flow [2024-11-20 13:25:12,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 309.0) internal successors, (927), 3 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:12,544 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:12,544 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] [2024-11-20 13:25:12,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 13:25:12,545 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-20 13:25:12,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:12,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1557790049, now seen corresponding path program 1 times [2024-11-20 13:25:12,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:12,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460950325] [2024-11-20 13:25:12,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:12,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:12,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:12,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:12,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460950325] [2024-11-20 13:25:12,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460950325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:12,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:12,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:12,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833188317] [2024-11-20 13:25:12,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:12,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:12,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:12,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:12,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:12,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 357 [2024-11-20 13:25:12,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 297 transitions, 639 flow. Second operand has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:12,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:12,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 357 [2024-11-20 13:25:12,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:12,824 INFO L124 PetriNetUnfolderBase]: 322/3123 cut-off events. [2024-11-20 13:25:12,825 INFO L125 PetriNetUnfolderBase]: For 494/594 co-relation queries the response was YES. [2024-11-20 13:25:12,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4066 conditions, 3123 events. 322/3123 cut-off events. For 494/594 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 25982 event pairs, 228 based on Foata normal form. 0/2820 useless extension candidates. Maximal degree in co-relation 4059. Up to 574 conditions per place. [2024-11-20 13:25:12,845 INFO L140 encePairwiseOnDemand]: 351/357 looper letters, 25 selfloop transitions, 1 changer transitions 0/292 dead transitions. [2024-11-20 13:25:12,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 292 transitions, 681 flow [2024-11-20 13:25:12,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:12,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:12,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 964 transitions. [2024-11-20 13:25:12,847 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.900093370681606 [2024-11-20 13:25:12,847 INFO L175 Difference]: Start difference. First operand has 304 places, 297 transitions, 639 flow. Second operand 3 states and 964 transitions. [2024-11-20 13:25:12,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 292 transitions, 681 flow [2024-11-20 13:25:12,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 292 transitions, 680 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:25:12,850 INFO L231 Difference]: Finished difference. Result has 300 places, 292 transitions, 630 flow [2024-11-20 13:25:12,851 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=630, PETRI_PLACES=300, PETRI_TRANSITIONS=292} [2024-11-20 13:25:12,851 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -41 predicate places. [2024-11-20 13:25:12,852 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 292 transitions, 630 flow [2024-11-20 13:25:12,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:12,852 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:12,852 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] [2024-11-20 13:25:12,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 13:25:12,852 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-20 13:25:12,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:12,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1310960774, now seen corresponding path program 1 times [2024-11-20 13:25:12,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:12,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379366846] [2024-11-20 13:25:12,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:12,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:13,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:13,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:13,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379366846] [2024-11-20 13:25:13,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379366846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:13,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:13,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:25:13,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669284532] [2024-11-20 13:25:13,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:13,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:25:13,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:13,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:25:13,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:25:13,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 357 [2024-11-20 13:25:13,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 292 transitions, 630 flow. Second operand has 6 states, 6 states have (on average 293.6666666666667) internal successors, (1762), 6 states have internal predecessors, (1762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:13,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:13,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 357 [2024-11-20 13:25:13,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:14,585 INFO L124 PetriNetUnfolderBase]: 2566/14629 cut-off events. [2024-11-20 13:25:14,586 INFO L125 PetriNetUnfolderBase]: For 160/160 co-relation queries the response was YES. [2024-11-20 13:25:14,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19408 conditions, 14629 events. 2566/14629 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 177423 event pairs, 1956 based on Foata normal form. 0/13218 useless extension candidates. Maximal degree in co-relation 19401. Up to 3973 conditions per place. [2024-11-20 13:25:14,642 INFO L140 encePairwiseOnDemand]: 350/357 looper letters, 59 selfloop transitions, 6 changer transitions 0/307 dead transitions. [2024-11-20 13:25:14,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 307 transitions, 790 flow [2024-11-20 13:25:14,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:25:14,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:25:14,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1818 transitions. [2024-11-20 13:25:14,645 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8487394957983193 [2024-11-20 13:25:14,645 INFO L175 Difference]: Start difference. First operand has 300 places, 292 transitions, 630 flow. Second operand 6 states and 1818 transitions. [2024-11-20 13:25:14,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 307 transitions, 790 flow [2024-11-20 13:25:14,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 307 transitions, 789 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:25:14,649 INFO L231 Difference]: Finished difference. Result has 303 places, 291 transitions, 639 flow [2024-11-20 13:25:14,650 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=627, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=639, PETRI_PLACES=303, PETRI_TRANSITIONS=291} [2024-11-20 13:25:14,650 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -38 predicate places. [2024-11-20 13:25:14,650 INFO L471 AbstractCegarLoop]: Abstraction has has 303 places, 291 transitions, 639 flow [2024-11-20 13:25:14,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 293.6666666666667) internal successors, (1762), 6 states have internal predecessors, (1762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:14,651 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:14,651 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] [2024-11-20 13:25:14,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 13:25:14,652 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-20 13:25:14,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:14,652 INFO L85 PathProgramCache]: Analyzing trace with hash -39212496, now seen corresponding path program 1 times [2024-11-20 13:25:14,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:14,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888346501] [2024-11-20 13:25:14,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:14,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:14,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:14,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:14,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888346501] [2024-11-20 13:25:14,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888346501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:14,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:14,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 13:25:14,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360606304] [2024-11-20 13:25:14,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:14,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 13:25:14,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:14,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 13:25:14,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 13:25:14,930 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 357 [2024-11-20 13:25:14,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 291 transitions, 639 flow. Second operand has 4 states, 4 states have (on average 313.5) internal successors, (1254), 4 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:14,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:14,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 357 [2024-11-20 13:25:14,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:15,366 INFO L124 PetriNetUnfolderBase]: 610/4941 cut-off events. [2024-11-20 13:25:15,366 INFO L125 PetriNetUnfolderBase]: For 154/154 co-relation queries the response was YES. [2024-11-20 13:25:15,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6270 conditions, 4941 events. 610/4941 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 47127 event pairs, 437 based on Foata normal form. 36/4494 useless extension candidates. Maximal degree in co-relation 6263. Up to 673 conditions per place. [2024-11-20 13:25:15,380 INFO L140 encePairwiseOnDemand]: 344/357 looper letters, 58 selfloop transitions, 11 changer transitions 1/331 dead transitions. [2024-11-20 13:25:15,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 331 transitions, 883 flow [2024-11-20 13:25:15,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 13:25:15,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 13:25:15,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1320 transitions. [2024-11-20 13:25:15,382 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9243697478991597 [2024-11-20 13:25:15,382 INFO L175 Difference]: Start difference. First operand has 303 places, 291 transitions, 639 flow. Second operand 4 states and 1320 transitions. [2024-11-20 13:25:15,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 331 transitions, 883 flow [2024-11-20 13:25:15,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 331 transitions, 871 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:25:15,386 INFO L231 Difference]: Finished difference. Result has 303 places, 300 transitions, 709 flow [2024-11-20 13:25:15,386 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=627, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=709, PETRI_PLACES=303, PETRI_TRANSITIONS=300} [2024-11-20 13:25:15,387 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -38 predicate places. [2024-11-20 13:25:15,387 INFO L471 AbstractCegarLoop]: Abstraction has has 303 places, 300 transitions, 709 flow [2024-11-20 13:25:15,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 313.5) internal successors, (1254), 4 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:15,387 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:15,388 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] [2024-11-20 13:25:15,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 13:25:15,388 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting funcAErr1ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-20 13:25:15,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:15,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1628732524, now seen corresponding path program 1 times [2024-11-20 13:25:15,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:15,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576741208] [2024-11-20 13:25:15,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:15,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:15,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:15,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:15,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576741208] [2024-11-20 13:25:15,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576741208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:15,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:15,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:15,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017889269] [2024-11-20 13:25:15,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:15,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:15,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:15,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:15,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:15,440 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 357 [2024-11-20 13:25:15,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 300 transitions, 709 flow. Second operand has 3 states, 3 states have (on average 320.6666666666667) internal successors, (962), 3 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:15,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:15,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 357 [2024-11-20 13:25:15,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:15,693 INFO L124 PetriNetUnfolderBase]: 268/2934 cut-off events. [2024-11-20 13:25:15,693 INFO L125 PetriNetUnfolderBase]: For 414/669 co-relation queries the response was YES. [2024-11-20 13:25:15,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3897 conditions, 2934 events. 268/2934 cut-off events. For 414/669 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 24389 event pairs, 166 based on Foata normal form. 0/2662 useless extension candidates. Maximal degree in co-relation 3888. Up to 443 conditions per place. [2024-11-20 13:25:15,714 INFO L140 encePairwiseOnDemand]: 351/357 looper letters, 30 selfloop transitions, 5 changer transitions 0/312 dead transitions. [2024-11-20 13:25:15,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 312 transitions, 812 flow [2024-11-20 13:25:15,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:15,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:15,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 993 transitions. [2024-11-20 13:25:15,716 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.927170868347339 [2024-11-20 13:25:15,716 INFO L175 Difference]: Start difference. First operand has 303 places, 300 transitions, 709 flow. Second operand 3 states and 993 transitions. [2024-11-20 13:25:15,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 312 transitions, 812 flow [2024-11-20 13:25:15,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 312 transitions, 810 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:25:15,723 INFO L231 Difference]: Finished difference. Result has 306 places, 304 transitions, 745 flow [2024-11-20 13:25:15,723 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=707, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=745, PETRI_PLACES=306, PETRI_TRANSITIONS=304} [2024-11-20 13:25:15,723 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -35 predicate places. [2024-11-20 13:25:15,724 INFO L471 AbstractCegarLoop]: Abstraction has has 306 places, 304 transitions, 745 flow [2024-11-20 13:25:15,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 320.6666666666667) internal successors, (962), 3 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:15,725 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:15,725 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:25:15,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 13:25:15,725 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting funcAErr4ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-20 13:25:15,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:15,726 INFO L85 PathProgramCache]: Analyzing trace with hash 6907104, now seen corresponding path program 1 times [2024-11-20 13:25:15,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:15,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534225600] [2024-11-20 13:25:15,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:15,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:15,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:15,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:15,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534225600] [2024-11-20 13:25:15,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534225600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:15,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:15,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:15,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536464675] [2024-11-20 13:25:15,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:15,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:15,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:15,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:15,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:15,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 357 [2024-11-20 13:25:15,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 304 transitions, 745 flow. Second operand has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:15,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:15,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 357 [2024-11-20 13:25:15,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:16,238 INFO L124 PetriNetUnfolderBase]: 355/4187 cut-off events. [2024-11-20 13:25:16,238 INFO L125 PetriNetUnfolderBase]: For 684/1252 co-relation queries the response was YES. [2024-11-20 13:25:16,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5686 conditions, 4187 events. 355/4187 cut-off events. For 684/1252 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 40736 event pairs, 93 based on Foata normal form. 2/3860 useless extension candidates. Maximal degree in co-relation 5676. Up to 507 conditions per place. [2024-11-20 13:25:16,264 INFO L140 encePairwiseOnDemand]: 348/357 looper letters, 36 selfloop transitions, 8 changer transitions 0/321 dead transitions. [2024-11-20 13:25:16,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 321 transitions, 888 flow [2024-11-20 13:25:16,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:16,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:16,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 995 transitions. [2024-11-20 13:25:16,267 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9290382819794585 [2024-11-20 13:25:16,267 INFO L175 Difference]: Start difference. First operand has 306 places, 304 transitions, 745 flow. Second operand 3 states and 995 transitions. [2024-11-20 13:25:16,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 321 transitions, 888 flow [2024-11-20 13:25:16,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 321 transitions, 874 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:25:16,273 INFO L231 Difference]: Finished difference. Result has 307 places, 310 transitions, 805 flow [2024-11-20 13:25:16,273 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=805, PETRI_PLACES=307, PETRI_TRANSITIONS=310} [2024-11-20 13:25:16,273 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -34 predicate places. [2024-11-20 13:25:16,273 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 310 transitions, 805 flow [2024-11-20 13:25:16,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:16,274 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:16,274 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] [2024-11-20 13:25:16,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 13:25:16,274 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-20 13:25:16,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:16,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1896594557, now seen corresponding path program 1 times [2024-11-20 13:25:16,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:16,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631710834] [2024-11-20 13:25:16,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:16,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:25:16,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:25:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:25:16,338 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:25:16,338 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:25:16,339 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2024-11-20 13:25:16,340 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr0ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining) [2024-11-20 13:25:16,340 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr1ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining) [2024-11-20 13:25:16,340 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr2ASSERT_VIOLATIONDATA_RACE (57 of 61 remaining) [2024-11-20 13:25:16,340 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr3ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining) [2024-11-20 13:25:16,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr4ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining) [2024-11-20 13:25:16,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr5ASSERT_VIOLATIONDATA_RACE (54 of 61 remaining) [2024-11-20 13:25:16,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr6ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining) [2024-11-20 13:25:16,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining) [2024-11-20 13:25:16,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining) [2024-11-20 13:25:16,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining) [2024-11-20 13:25:16,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining) [2024-11-20 13:25:16,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining) [2024-11-20 13:25:16,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining) [2024-11-20 13:25:16,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining) [2024-11-20 13:25:16,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining) [2024-11-20 13:25:16,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining) [2024-11-20 13:25:16,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining) [2024-11-20 13:25:16,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining) [2024-11-20 13:25:16,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining) [2024-11-20 13:25:16,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining) [2024-11-20 13:25:16,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining) [2024-11-20 13:25:16,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining) [2024-11-20 13:25:16,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (37 of 61 remaining) [2024-11-20 13:25:16,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining) [2024-11-20 13:25:16,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining) [2024-11-20 13:25:16,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE (34 of 61 remaining) [2024-11-20 13:25:16,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining) [2024-11-20 13:25:16,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining) [2024-11-20 13:25:16,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining) [2024-11-20 13:25:16,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining) [2024-11-20 13:25:16,344 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining) [2024-11-20 13:25:16,344 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining) [2024-11-20 13:25:16,344 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining) [2024-11-20 13:25:16,344 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining) [2024-11-20 13:25:16,344 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 61 remaining) [2024-11-20 13:25:16,344 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONDATA_RACE (24 of 61 remaining) [2024-11-20 13:25:16,344 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr1ASSERT_VIOLATIONDATA_RACE (23 of 61 remaining) [2024-11-20 13:25:16,344 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr2ASSERT_VIOLATIONDATA_RACE (22 of 61 remaining) [2024-11-20 13:25:16,344 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr3ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining) [2024-11-20 13:25:16,345 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr4ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining) [2024-11-20 13:25:16,345 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr5ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining) [2024-11-20 13:25:16,345 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr6ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining) [2024-11-20 13:25:16,345 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr7ASSERT_VIOLATIONDATA_RACE (17 of 61 remaining) [2024-11-20 13:25:16,345 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr8ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining) [2024-11-20 13:25:16,345 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr0ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining) [2024-11-20 13:25:16,345 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr1ASSERT_VIOLATIONDATA_RACE (14 of 61 remaining) [2024-11-20 13:25:16,345 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr2ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining) [2024-11-20 13:25:16,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr3ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining) [2024-11-20 13:25:16,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr4ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining) [2024-11-20 13:25:16,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr5ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining) [2024-11-20 13:25:16,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr6ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining) [2024-11-20 13:25:16,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining) [2024-11-20 13:25:16,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr1ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining) [2024-11-20 13:25:16,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr2ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining) [2024-11-20 13:25:16,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr3ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining) [2024-11-20 13:25:16,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr4ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining) [2024-11-20 13:25:16,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr5ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining) [2024-11-20 13:25:16,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr6ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining) [2024-11-20 13:25:16,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr7ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining) [2024-11-20 13:25:16,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr8ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining) [2024-11-20 13:25:16,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 13:25:16,347 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:25:16,349 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:25:16,349 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-20 13:25:16,385 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-20 13:25:16,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 439 places, 458 transitions, 960 flow [2024-11-20 13:25:16,649 INFO L124 PetriNetUnfolderBase]: 163/1958 cut-off events. [2024-11-20 13:25:16,650 INFO L125 PetriNetUnfolderBase]: For 72/74 co-relation queries the response was YES. [2024-11-20 13:25:16,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2047 conditions, 1958 events. 163/1958 cut-off events. For 72/74 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 12257 event pairs, 1 based on Foata normal form. 0/1599 useless extension candidates. Maximal degree in co-relation 1163. Up to 32 conditions per place. [2024-11-20 13:25:16,672 INFO L82 GeneralOperation]: Start removeDead. Operand has 439 places, 458 transitions, 960 flow [2024-11-20 13:25:16,686 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 439 places, 458 transitions, 960 flow [2024-11-20 13:25:16,687 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:25:16,687 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;@484358b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:25:16,687 INFO L334 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2024-11-20 13:25:16,692 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:25:16,692 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-11-20 13:25:16,692 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:25:16,692 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:16,692 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] [2024-11-20 13:25:16,693 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2024-11-20 13:25:16,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:16,693 INFO L85 PathProgramCache]: Analyzing trace with hash -3482151, now seen corresponding path program 1 times [2024-11-20 13:25:16,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:16,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884060750] [2024-11-20 13:25:16,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:16,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:16,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:16,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:16,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884060750] [2024-11-20 13:25:16,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884060750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:16,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:16,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:16,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14514501] [2024-11-20 13:25:16,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:16,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:16,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:16,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:16,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:16,728 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 397 out of 458 [2024-11-20 13:25:16,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 458 transitions, 960 flow. Second operand has 3 states, 3 states have (on average 397.6666666666667) internal successors, (1193), 3 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:16,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:16,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 397 of 458 [2024-11-20 13:25:16,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:28,134 INFO L124 PetriNetUnfolderBase]: 18400/85864 cut-off events. [2024-11-20 13:25:28,135 INFO L125 PetriNetUnfolderBase]: For 7767/7767 co-relation queries the response was YES. [2024-11-20 13:25:28,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113081 conditions, 85864 events. 18400/85864 cut-off events. For 7767/7767 co-relation queries the response was YES. Maximal size of possible extension queue 1658. Compared 1310766 event pairs, 16524 based on Foata normal form. 9795/81880 useless extension candidates. Maximal degree in co-relation 87518. Up to 24187 conditions per place. [2024-11-20 13:25:29,088 INFO L140 encePairwiseOnDemand]: 437/458 looper letters, 38 selfloop transitions, 1 changer transitions 8/434 dead transitions. [2024-11-20 13:25:29,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 434 transitions, 990 flow [2024-11-20 13:25:29,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:29,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:29,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1250 transitions. [2024-11-20 13:25:29,091 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9097525473071325 [2024-11-20 13:25:29,091 INFO L175 Difference]: Start difference. First operand has 439 places, 458 transitions, 960 flow. Second operand 3 states and 1250 transitions. [2024-11-20 13:25:29,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 434 transitions, 990 flow [2024-11-20 13:25:29,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 434 transitions, 990 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:25:29,108 INFO L231 Difference]: Finished difference. Result has 433 places, 426 transitions, 898 flow [2024-11-20 13:25:29,108 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=458, PETRI_DIFFERENCE_MINUEND_FLOW=912, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=898, PETRI_PLACES=433, PETRI_TRANSITIONS=426} [2024-11-20 13:25:29,108 INFO L277 CegarLoopForPetriNet]: 439 programPoint places, -6 predicate places. [2024-11-20 13:25:29,109 INFO L471 AbstractCegarLoop]: Abstraction has has 433 places, 426 transitions, 898 flow [2024-11-20 13:25:29,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 397.6666666666667) internal successors, (1193), 3 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:29,109 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:29,109 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] [2024-11-20 13:25:29,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 13:25:29,109 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2024-11-20 13:25:29,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:29,109 INFO L85 PathProgramCache]: Analyzing trace with hash -107983191, now seen corresponding path program 1 times [2024-11-20 13:25:29,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:29,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118283781] [2024-11-20 13:25:29,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:29,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:29,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:29,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:29,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118283781] [2024-11-20 13:25:29,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118283781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:29,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:29,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:29,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694584613] [2024-11-20 13:25:29,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:29,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:29,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:29,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:29,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:29,136 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 458 [2024-11-20 13:25:29,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 426 transitions, 898 flow. Second operand has 3 states, 3 states have (on average 407.6666666666667) internal successors, (1223), 3 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:29,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:29,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 458 [2024-11-20 13:25:29,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:43,646 INFO L124 PetriNetUnfolderBase]: 15480/93326 cut-off events. [2024-11-20 13:25:43,646 INFO L125 PetriNetUnfolderBase]: For 16224/17730 co-relation queries the response was YES. [2024-11-20 13:25:44,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120191 conditions, 93326 events. 15480/93326 cut-off events. For 16224/17730 co-relation queries the response was YES. Maximal size of possible extension queue 2195. Compared 1536128 event pairs, 13384 based on Foata normal form. 0/79189 useless extension candidates. Maximal degree in co-relation 60064. Up to 10394 conditions per place. [2024-11-20 13:25:45,120 INFO L140 encePairwiseOnDemand]: 456/458 looper letters, 61 selfloop transitions, 1 changer transitions 0/455 dead transitions. [2024-11-20 13:25:45,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 455 transitions, 1120 flow [2024-11-20 13:25:45,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:45,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:45,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1284 transitions. [2024-11-20 13:25:45,123 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9344978165938864 [2024-11-20 13:25:45,123 INFO L175 Difference]: Start difference. First operand has 433 places, 426 transitions, 898 flow. Second operand 3 states and 1284 transitions. [2024-11-20 13:25:45,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 455 transitions, 1120 flow [2024-11-20 13:25:45,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 455 transitions, 1119 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:25:45,170 INFO L231 Difference]: Finished difference. Result has 425 places, 425 transitions, 897 flow [2024-11-20 13:25:45,170 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=458, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=897, PETRI_PLACES=425, PETRI_TRANSITIONS=425} [2024-11-20 13:25:45,171 INFO L277 CegarLoopForPetriNet]: 439 programPoint places, -14 predicate places. [2024-11-20 13:25:45,171 INFO L471 AbstractCegarLoop]: Abstraction has has 425 places, 425 transitions, 897 flow [2024-11-20 13:25:45,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 407.6666666666667) internal successors, (1223), 3 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:45,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:45,171 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] [2024-11-20 13:25:45,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 13:25:45,171 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2024-11-20 13:25:45,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:45,172 INFO L85 PathProgramCache]: Analyzing trace with hash 947214587, now seen corresponding path program 1 times [2024-11-20 13:25:45,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:45,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494238745] [2024-11-20 13:25:45,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:45,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:45,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:45,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:45,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494238745] [2024-11-20 13:25:45,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494238745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:45,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:45,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:25:45,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549259899] [2024-11-20 13:25:45,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:45,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:45,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:45,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:45,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:25:45,212 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 458 [2024-11-20 13:25:45,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 425 transitions, 897 flow. Second operand has 3 states, 3 states have (on average 383.6666666666667) internal successors, (1151), 3 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:45,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:45,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 458 [2024-11-20 13:25:45,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand