./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_23-evilcollapse_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_23-evilcollapse_rc.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash edbdacd2fc511db63719a3e7d2bd257b6310a833f5bcfcddcb6829e714260082 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:08:32,776 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:08:32,846 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:08:32,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:08:32,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:08:32,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:08:32,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:08:32,878 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:08:32,879 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:08:32,881 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:08:32,882 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:08:32,882 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:08:32,882 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:08:32,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:08:32,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:08:32,883 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:08:32,883 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:08:32,883 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:08:32,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:08:32,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:08:32,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:08:32,885 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:08:32,885 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:08:32,886 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:08:32,886 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:08:32,886 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:08:32,886 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:08:32,886 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:08:32,886 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:08:32,887 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:08:32,887 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:08:32,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:08:32,887 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:08:32,887 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:08:32,888 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:08:32,888 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:08:32,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:08:32,889 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:08:32,889 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:08:32,889 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:08:32,889 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:08:32,890 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edbdacd2fc511db63719a3e7d2bd257b6310a833f5bcfcddcb6829e714260082 [2024-10-11 17:08:33,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:08:33,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:08:33,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:08:33,128 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:08:33,128 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:08:33,129 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_23-evilcollapse_rc.i [2024-10-11 17:08:34,455 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:08:34,730 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:08:34,731 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_23-evilcollapse_rc.i [2024-10-11 17:08:34,750 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/491da072b/b8ee5ba963424ff6b6fa6059628bdd18/FLAGc9452a280 [2024-10-11 17:08:35,041 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/491da072b/b8ee5ba963424ff6b6fa6059628bdd18 [2024-10-11 17:08:35,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:08:35,044 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:08:35,046 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:08:35,046 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:08:35,051 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:08:35,051 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:08:35" (1/1) ... [2024-10-11 17:08:35,054 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1894936d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:35, skipping insertion in model container [2024-10-11 17:08:35,054 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:08:35" (1/1) ... [2024-10-11 17:08:35,093 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:08:35,433 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:35,433 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:35,434 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:35,439 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:35,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:08:35,486 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:08:35,536 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:35,536 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:35,537 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:35,538 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:35,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:08:35,592 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:08:35,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:35 WrapperNode [2024-10-11 17:08:35,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:08:35,593 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:08:35,594 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:08:35,594 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:08:35,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:35" (1/1) ... [2024-10-11 17:08:35,616 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:35" (1/1) ... [2024-10-11 17:08:35,645 INFO L138 Inliner]: procedures = 272, calls = 31, calls flagged for inlining = 10, calls inlined = 11, statements flattened = 266 [2024-10-11 17:08:35,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:08:35,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:08:35,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:08:35,646 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:08:35,653 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:35" (1/1) ... [2024-10-11 17:08:35,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:35" (1/1) ... [2024-10-11 17:08:35,658 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:35" (1/1) ... [2024-10-11 17:08:35,658 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:35" (1/1) ... [2024-10-11 17:08:35,672 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:35" (1/1) ... [2024-10-11 17:08:35,675 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:35" (1/1) ... [2024-10-11 17:08:35,677 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:35" (1/1) ... [2024-10-11 17:08:35,679 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:35" (1/1) ... [2024-10-11 17:08:35,681 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:08:35,682 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:08:35,682 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:08:35,682 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:08:35,684 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:35" (1/1) ... [2024-10-11 17:08:35,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:08:35,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:35,721 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:08:35,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:08:35,765 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-10-11 17:08:35,766 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-10-11 17:08:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-11 17:08:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:08:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:08:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:08:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:08:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 17:08:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:08:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-11 17:08:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:08:35,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:08:35,770 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:08:35,945 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:08:35,950 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:08:36,382 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:08:36,382 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:08:36,402 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:08:36,405 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-11 17:08:36,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:08:36 BoogieIcfgContainer [2024-10-11 17:08:36,406 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:08:36,408 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:08:36,408 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:08:36,411 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:08:36,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:08:35" (1/3) ... [2024-10-11 17:08:36,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5842b3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:08:36, skipping insertion in model container [2024-10-11 17:08:36,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:35" (2/3) ... [2024-10-11 17:08:36,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5842b3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:08:36, skipping insertion in model container [2024-10-11 17:08:36,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:08:36" (3/3) ... [2024-10-11 17:08:36,413 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_23-evilcollapse_rc.i [2024-10-11 17:08:36,425 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:08:36,425 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-10-11 17:08:36,426 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:08:36,509 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 17:08:36,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 376 places, 385 transitions, 778 flow [2024-10-11 17:08:36,640 INFO L124 PetriNetUnfolderBase]: 16/383 cut-off events. [2024-10-11 17:08:36,641 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:36,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 383 events. 16/383 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 650 event pairs, 0 based on Foata normal form. 0/345 useless extension candidates. Maximal degree in co-relation 308. Up to 2 conditions per place. [2024-10-11 17:08:36,649 INFO L82 GeneralOperation]: Start removeDead. Operand has 376 places, 385 transitions, 778 flow [2024-10-11 17:08:36,655 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 374 places, 383 transitions, 772 flow [2024-10-11 17:08:36,662 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:08:36,667 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;@531d04a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:08:36,668 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-10-11 17:08:36,675 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:08:36,675 INFO L124 PetriNetUnfolderBase]: 1/34 cut-off events. [2024-10-11 17:08:36,675 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:36,675 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:36,676 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] [2024-10-11 17:08:36,676 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:08:36,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:36,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1946811797, now seen corresponding path program 1 times [2024-10-11 17:08:36,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:36,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742558180] [2024-10-11 17:08:36,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:36,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:37,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:37,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:37,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742558180] [2024-10-11 17:08:37,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742558180] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:37,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:37,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:37,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687791973] [2024-10-11 17:08:37,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:37,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:37,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:37,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:37,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:37,747 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 385 [2024-10-11 17:08:37,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 383 transitions, 772 flow. Second operand has 6 states, 6 states have (on average 276.3333333333333) internal successors, (1658), 6 states have internal predecessors, (1658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:37,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:37,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 385 [2024-10-11 17:08:37,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:38,148 INFO L124 PetriNetUnfolderBase]: 449/1849 cut-off events. [2024-10-11 17:08:38,148 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-11 17:08:38,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2764 conditions, 1849 events. 449/1849 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10943 event pairs, 342 based on Foata normal form. 154/1790 useless extension candidates. Maximal degree in co-relation 2472. Up to 862 conditions per place. [2024-10-11 17:08:38,164 INFO L140 encePairwiseOnDemand]: 363/385 looper letters, 88 selfloop transitions, 10 changer transitions 2/371 dead transitions. [2024-10-11 17:08:38,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 371 transitions, 944 flow [2024-10-11 17:08:38,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:38,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:38,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1760 transitions. [2024-10-11 17:08:38,179 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7619047619047619 [2024-10-11 17:08:38,181 INFO L175 Difference]: Start difference. First operand has 374 places, 383 transitions, 772 flow. Second operand 6 states and 1760 transitions. [2024-10-11 17:08:38,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 371 transitions, 944 flow [2024-10-11 17:08:38,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 371 transitions, 942 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:08:38,189 INFO L231 Difference]: Finished difference. Result has 375 places, 369 transitions, 762 flow [2024-10-11 17:08:38,191 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=762, PETRI_PLACES=375, PETRI_TRANSITIONS=369} [2024-10-11 17:08:38,194 INFO L277 CegarLoopForPetriNet]: 374 programPoint places, 1 predicate places. [2024-10-11 17:08:38,194 INFO L471 AbstractCegarLoop]: Abstraction has has 375 places, 369 transitions, 762 flow [2024-10-11 17:08:38,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 276.3333333333333) internal successors, (1658), 6 states have internal predecessors, (1658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:38,195 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:38,195 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] [2024-10-11 17:08:38,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:08:38,195 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:08:38,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:38,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1545557502, now seen corresponding path program 1 times [2024-10-11 17:08:38,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:38,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128794123] [2024-10-11 17:08:38,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:38,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:38,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:38,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:38,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128794123] [2024-10-11 17:08:38,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128794123] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:38,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:38,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:38,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329721735] [2024-10-11 17:08:38,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:38,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:38,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:38,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:38,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:38,901 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 385 [2024-10-11 17:08:38,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 369 transitions, 762 flow. Second operand has 6 states, 6 states have (on average 276.3333333333333) internal successors, (1658), 6 states have internal predecessors, (1658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:38,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:38,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 385 [2024-10-11 17:08:38,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:39,224 INFO L124 PetriNetUnfolderBase]: 449/1845 cut-off events. [2024-10-11 17:08:39,226 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:39,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2769 conditions, 1845 events. 449/1845 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10974 event pairs, 342 based on Foata normal form. 0/1636 useless extension candidates. Maximal degree in co-relation 2595. Up to 862 conditions per place. [2024-10-11 17:08:39,233 INFO L140 encePairwiseOnDemand]: 373/385 looper letters, 88 selfloop transitions, 10 changer transitions 0/367 dead transitions. [2024-10-11 17:08:39,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 367 transitions, 954 flow [2024-10-11 17:08:39,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:39,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:39,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1750 transitions. [2024-10-11 17:08:39,237 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7575757575757576 [2024-10-11 17:08:39,237 INFO L175 Difference]: Start difference. First operand has 375 places, 369 transitions, 762 flow. Second operand 6 states and 1750 transitions. [2024-10-11 17:08:39,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 367 transitions, 954 flow [2024-10-11 17:08:39,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 367 transitions, 934 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:39,245 INFO L231 Difference]: Finished difference. Result has 371 places, 367 transitions, 758 flow [2024-10-11 17:08:39,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=758, PETRI_PLACES=371, PETRI_TRANSITIONS=367} [2024-10-11 17:08:39,246 INFO L277 CegarLoopForPetriNet]: 374 programPoint places, -3 predicate places. [2024-10-11 17:08:39,247 INFO L471 AbstractCegarLoop]: Abstraction has has 371 places, 367 transitions, 758 flow [2024-10-11 17:08:39,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 276.3333333333333) internal successors, (1658), 6 states have internal predecessors, (1658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:39,248 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:39,248 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:39,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:08:39,248 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:08:39,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:39,249 INFO L85 PathProgramCache]: Analyzing trace with hash -120739129, now seen corresponding path program 1 times [2024-10-11 17:08:39,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:39,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502642904] [2024-10-11 17:08:39,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:39,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:39,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:39,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:39,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502642904] [2024-10-11 17:08:39,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502642904] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:39,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:39,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:08:39,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447675867] [2024-10-11 17:08:39,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:39,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:08:39,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:39,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:08:39,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:08:39,292 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 363 out of 385 [2024-10-11 17:08:39,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 367 transitions, 758 flow. Second operand has 3 states, 3 states have (on average 364.3333333333333) internal successors, (1093), 3 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:39,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:39,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 363 of 385 [2024-10-11 17:08:39,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:39,349 INFO L124 PetriNetUnfolderBase]: 29/669 cut-off events. [2024-10-11 17:08:39,350 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:39,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 669 events. 29/669 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2134 event pairs, 18 based on Foata normal form. 1/614 useless extension candidates. Maximal degree in co-relation 510. Up to 45 conditions per place. [2024-10-11 17:08:39,353 INFO L140 encePairwiseOnDemand]: 382/385 looper letters, 11 selfloop transitions, 2 changer transitions 0/368 dead transitions. [2024-10-11 17:08:39,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 368 transitions, 786 flow [2024-10-11 17:08:39,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:08:39,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:08:39,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1103 transitions. [2024-10-11 17:08:39,355 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9549783549783549 [2024-10-11 17:08:39,355 INFO L175 Difference]: Start difference. First operand has 371 places, 367 transitions, 758 flow. Second operand 3 states and 1103 transitions. [2024-10-11 17:08:39,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 368 transitions, 786 flow [2024-10-11 17:08:39,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 368 transitions, 766 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:39,361 INFO L231 Difference]: Finished difference. Result has 369 places, 368 transitions, 750 flow [2024-10-11 17:08:39,362 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=750, PETRI_PLACES=369, PETRI_TRANSITIONS=368} [2024-10-11 17:08:39,362 INFO L277 CegarLoopForPetriNet]: 374 programPoint places, -5 predicate places. [2024-10-11 17:08:39,363 INFO L471 AbstractCegarLoop]: Abstraction has has 369 places, 368 transitions, 750 flow [2024-10-11 17:08:39,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 364.3333333333333) internal successors, (1093), 3 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:39,363 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:39,363 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] [2024-10-11 17:08:39,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:08:39,364 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:08:39,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:39,364 INFO L85 PathProgramCache]: Analyzing trace with hash 574601362, now seen corresponding path program 1 times [2024-10-11 17:08:39,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:39,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873414816] [2024-10-11 17:08:39,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:39,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:39,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:39,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:39,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873414816] [2024-10-11 17:08:39,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873414816] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:39,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:39,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:39,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738750672] [2024-10-11 17:08:39,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:39,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:39,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:39,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:39,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:39,905 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 385 [2024-10-11 17:08:39,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 368 transitions, 750 flow. Second operand has 6 states, 6 states have (on average 276.6666666666667) internal successors, (1660), 6 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:39,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:39,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 385 [2024-10-11 17:08:39,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:40,080 INFO L124 PetriNetUnfolderBase]: 450/1967 cut-off events. [2024-10-11 17:08:40,080 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:08:40,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2935 conditions, 1967 events. 450/1967 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 11281 event pairs, 342 based on Foata normal form. 0/1754 useless extension candidates. Maximal degree in co-relation 2746. Up to 910 conditions per place. [2024-10-11 17:08:40,089 INFO L140 encePairwiseOnDemand]: 379/385 looper letters, 95 selfloop transitions, 5 changer transitions 0/367 dead transitions. [2024-10-11 17:08:40,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 367 transitions, 948 flow [2024-10-11 17:08:40,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:40,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:40,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1745 transitions. [2024-10-11 17:08:40,092 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7554112554112554 [2024-10-11 17:08:40,092 INFO L175 Difference]: Start difference. First operand has 369 places, 368 transitions, 750 flow. Second operand 6 states and 1745 transitions. [2024-10-11 17:08:40,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 367 transitions, 948 flow [2024-10-11 17:08:40,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 367 transitions, 946 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:08:40,097 INFO L231 Difference]: Finished difference. Result has 372 places, 367 transitions, 756 flow [2024-10-11 17:08:40,098 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=756, PETRI_PLACES=372, PETRI_TRANSITIONS=367} [2024-10-11 17:08:40,098 INFO L277 CegarLoopForPetriNet]: 374 programPoint places, -2 predicate places. [2024-10-11 17:08:40,098 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 367 transitions, 756 flow [2024-10-11 17:08:40,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 276.6666666666667) internal successors, (1660), 6 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:40,099 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:40,100 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] [2024-10-11 17:08:40,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:08:40,100 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:08:40,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:40,100 INFO L85 PathProgramCache]: Analyzing trace with hash 2084493410, now seen corresponding path program 1 times [2024-10-11 17:08:40,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:40,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018495665] [2024-10-11 17:08:40,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:40,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:40,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:40,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:40,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018495665] [2024-10-11 17:08:40,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018495665] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:40,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:40,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:08:40,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761839635] [2024-10-11 17:08:40,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:40,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:08:40,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:40,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:08:40,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:08:40,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 363 out of 385 [2024-10-11 17:08:40,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 367 transitions, 756 flow. Second operand has 3 states, 3 states have (on average 364.3333333333333) internal successors, (1093), 3 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:40,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:40,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 363 of 385 [2024-10-11 17:08:40,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:40,259 INFO L124 PetriNetUnfolderBase]: 29/855 cut-off events. [2024-10-11 17:08:40,259 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:40,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 941 conditions, 855 events. 29/855 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2422 event pairs, 18 based on Foata normal form. 2/795 useless extension candidates. Maximal degree in co-relation 588. Up to 49 conditions per place. [2024-10-11 17:08:40,263 INFO L140 encePairwiseOnDemand]: 382/385 looper letters, 11 selfloop transitions, 2 changer transitions 0/368 dead transitions. [2024-10-11 17:08:40,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 368 transitions, 784 flow [2024-10-11 17:08:40,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:08:40,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:08:40,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1103 transitions. [2024-10-11 17:08:40,266 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9549783549783549 [2024-10-11 17:08:40,266 INFO L175 Difference]: Start difference. First operand has 372 places, 367 transitions, 756 flow. Second operand 3 states and 1103 transitions. [2024-10-11 17:08:40,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 368 transitions, 784 flow [2024-10-11 17:08:40,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 368 transitions, 774 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:40,271 INFO L231 Difference]: Finished difference. Result has 370 places, 368 transitions, 758 flow [2024-10-11 17:08:40,271 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=758, PETRI_PLACES=370, PETRI_TRANSITIONS=368} [2024-10-11 17:08:40,272 INFO L277 CegarLoopForPetriNet]: 374 programPoint places, -4 predicate places. [2024-10-11 17:08:40,272 INFO L471 AbstractCegarLoop]: Abstraction has has 370 places, 368 transitions, 758 flow [2024-10-11 17:08:40,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 364.3333333333333) internal successors, (1093), 3 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:40,273 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:40,273 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:40,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 17:08:40,273 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:08:40,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:40,274 INFO L85 PathProgramCache]: Analyzing trace with hash -118531118, now seen corresponding path program 1 times [2024-10-11 17:08:40,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:40,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585530497] [2024-10-11 17:08:40,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:40,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:40,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:40,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:40,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585530497] [2024-10-11 17:08:40,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585530497] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:40,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:40,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:40,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831302383] [2024-10-11 17:08:40,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:40,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:40,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:40,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:40,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:41,146 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 385 [2024-10-11 17:08:41,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 368 transitions, 758 flow. Second operand has 6 states, 6 states have (on average 315.5) internal successors, (1893), 6 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:41,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:41,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 385 [2024-10-11 17:08:41,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:41,318 INFO L124 PetriNetUnfolderBase]: 75/1167 cut-off events. [2024-10-11 17:08:41,319 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 17:08:41,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1488 conditions, 1167 events. 75/1167 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4463 event pairs, 42 based on Foata normal form. 0/1070 useless extension candidates. Maximal degree in co-relation 1032. Up to 267 conditions per place. [2024-10-11 17:08:41,325 INFO L140 encePairwiseOnDemand]: 379/385 looper letters, 58 selfloop transitions, 5 changer transitions 0/367 dead transitions. [2024-10-11 17:08:41,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 367 transitions, 882 flow [2024-10-11 17:08:41,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:41,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:41,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1930 transitions. [2024-10-11 17:08:41,328 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8354978354978355 [2024-10-11 17:08:41,328 INFO L175 Difference]: Start difference. First operand has 370 places, 368 transitions, 758 flow. Second operand 6 states and 1930 transitions. [2024-10-11 17:08:41,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 367 transitions, 882 flow [2024-10-11 17:08:41,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 367 transitions, 880 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:08:41,333 INFO L231 Difference]: Finished difference. Result has 373 places, 367 transitions, 764 flow [2024-10-11 17:08:41,333 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=764, PETRI_PLACES=373, PETRI_TRANSITIONS=367} [2024-10-11 17:08:41,335 INFO L277 CegarLoopForPetriNet]: 374 programPoint places, -1 predicate places. [2024-10-11 17:08:41,335 INFO L471 AbstractCegarLoop]: Abstraction has has 373 places, 367 transitions, 764 flow [2024-10-11 17:08:41,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 315.5) internal successors, (1893), 6 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:41,337 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:41,337 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:41,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 17:08:41,337 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:08:41,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:41,338 INFO L85 PathProgramCache]: Analyzing trace with hash 909148448, now seen corresponding path program 1 times [2024-10-11 17:08:41,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:41,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506680228] [2024-10-11 17:08:41,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:41,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:41,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:41,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:41,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506680228] [2024-10-11 17:08:41,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506680228] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:41,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:41,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:41,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361798045] [2024-10-11 17:08:41,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:41,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:41,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:41,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:41,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:42,074 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 385 [2024-10-11 17:08:42,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 367 transitions, 764 flow. Second operand has 6 states, 6 states have (on average 279.3333333333333) internal successors, (1676), 6 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:42,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:42,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 385 [2024-10-11 17:08:42,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:42,468 INFO L124 PetriNetUnfolderBase]: 450/2147 cut-off events. [2024-10-11 17:08:42,468 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 17:08:42,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3219 conditions, 2147 events. 450/2147 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12113 event pairs, 342 based on Foata normal form. 0/1934 useless extension candidates. Maximal degree in co-relation 2789. Up to 976 conditions per place. [2024-10-11 17:08:42,477 INFO L140 encePairwiseOnDemand]: 379/385 looper letters, 95 selfloop transitions, 5 changer transitions 0/366 dead transitions. [2024-10-11 17:08:42,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 366 transitions, 962 flow [2024-10-11 17:08:42,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:42,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:42,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1745 transitions. [2024-10-11 17:08:42,481 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7554112554112554 [2024-10-11 17:08:42,481 INFO L175 Difference]: Start difference. First operand has 373 places, 367 transitions, 764 flow. Second operand 6 states and 1745 transitions. [2024-10-11 17:08:42,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 366 transitions, 962 flow [2024-10-11 17:08:42,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 366 transitions, 952 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:42,486 INFO L231 Difference]: Finished difference. Result has 372 places, 366 transitions, 762 flow [2024-10-11 17:08:42,487 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=762, PETRI_PLACES=372, PETRI_TRANSITIONS=366} [2024-10-11 17:08:42,488 INFO L277 CegarLoopForPetriNet]: 374 programPoint places, -2 predicate places. [2024-10-11 17:08:42,488 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 366 transitions, 762 flow [2024-10-11 17:08:42,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 279.3333333333333) internal successors, (1676), 6 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:42,489 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:42,489 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:42,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:08:42,489 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:08:42,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:42,490 INFO L85 PathProgramCache]: Analyzing trace with hash 252696998, now seen corresponding path program 1 times [2024-10-11 17:08:42,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:42,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532354255] [2024-10-11 17:08:42,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:42,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:42,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:42,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:42,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532354255] [2024-10-11 17:08:42,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532354255] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:42,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:42,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:42,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456942590] [2024-10-11 17:08:42,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:42,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:42,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:42,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:42,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:43,321 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 385 [2024-10-11 17:08:43,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 366 transitions, 762 flow. Second operand has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:43,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:43,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 385 [2024-10-11 17:08:43,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:43,520 INFO L124 PetriNetUnfolderBase]: 450/2143 cut-off events. [2024-10-11 17:08:43,520 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 17:08:43,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3199 conditions, 2143 events. 450/2143 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12023 event pairs, 342 based on Foata normal form. 0/1934 useless extension candidates. Maximal degree in co-relation 2805. Up to 960 conditions per place. [2024-10-11 17:08:43,529 INFO L140 encePairwiseOnDemand]: 379/385 looper letters, 91 selfloop transitions, 5 changer transitions 0/365 dead transitions. [2024-10-11 17:08:43,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 365 transitions, 952 flow [2024-10-11 17:08:43,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:43,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:43,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1765 transitions. [2024-10-11 17:08:43,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7640692640692641 [2024-10-11 17:08:43,532 INFO L175 Difference]: Start difference. First operand has 372 places, 366 transitions, 762 flow. Second operand 6 states and 1765 transitions. [2024-10-11 17:08:43,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 365 transitions, 952 flow [2024-10-11 17:08:43,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 365 transitions, 942 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:43,536 INFO L231 Difference]: Finished difference. Result has 371 places, 365 transitions, 760 flow [2024-10-11 17:08:43,537 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=760, PETRI_PLACES=371, PETRI_TRANSITIONS=365} [2024-10-11 17:08:43,537 INFO L277 CegarLoopForPetriNet]: 374 programPoint places, -3 predicate places. [2024-10-11 17:08:43,538 INFO L471 AbstractCegarLoop]: Abstraction has has 371 places, 365 transitions, 760 flow [2024-10-11 17:08:43,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:43,539 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:43,539 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:43,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:08:43,539 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:08:43,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:43,539 INFO L85 PathProgramCache]: Analyzing trace with hash 381109833, now seen corresponding path program 1 times [2024-10-11 17:08:43,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:43,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026966674] [2024-10-11 17:08:43,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:43,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:43,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:43,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:43,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026966674] [2024-10-11 17:08:43,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026966674] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:43,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:43,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:43,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661382577] [2024-10-11 17:08:43,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:43,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:43,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:43,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:43,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:44,161 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 385 [2024-10-11 17:08:44,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 365 transitions, 760 flow. Second operand has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:44,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:44,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 385 [2024-10-11 17:08:44,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:44,454 INFO L124 PetriNetUnfolderBase]: 450/2139 cut-off events. [2024-10-11 17:08:44,454 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:44,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3195 conditions, 2139 events. 450/2139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12060 event pairs, 342 based on Foata normal form. 0/1934 useless extension candidates. Maximal degree in co-relation 2820. Up to 960 conditions per place. [2024-10-11 17:08:44,464 INFO L140 encePairwiseOnDemand]: 379/385 looper letters, 91 selfloop transitions, 5 changer transitions 0/364 dead transitions. [2024-10-11 17:08:44,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 364 transitions, 950 flow [2024-10-11 17:08:44,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:44,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:44,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1765 transitions. [2024-10-11 17:08:44,467 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7640692640692641 [2024-10-11 17:08:44,467 INFO L175 Difference]: Start difference. First operand has 371 places, 365 transitions, 760 flow. Second operand 6 states and 1765 transitions. [2024-10-11 17:08:44,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 364 transitions, 950 flow [2024-10-11 17:08:44,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 364 transitions, 940 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:44,471 INFO L231 Difference]: Finished difference. Result has 370 places, 364 transitions, 758 flow [2024-10-11 17:08:44,472 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=748, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=758, PETRI_PLACES=370, PETRI_TRANSITIONS=364} [2024-10-11 17:08:44,472 INFO L277 CegarLoopForPetriNet]: 374 programPoint places, -4 predicate places. [2024-10-11 17:08:44,473 INFO L471 AbstractCegarLoop]: Abstraction has has 370 places, 364 transitions, 758 flow [2024-10-11 17:08:44,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:44,474 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:44,474 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:44,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 17:08:44,474 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:08:44,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:44,474 INFO L85 PathProgramCache]: Analyzing trace with hash 964951190, now seen corresponding path program 1 times [2024-10-11 17:08:44,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:44,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569069664] [2024-10-11 17:08:44,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:44,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:44,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:44,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:44,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:44,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569069664] [2024-10-11 17:08:44,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569069664] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:44,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:44,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:44,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474291789] [2024-10-11 17:08:44,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:44,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:44,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:44,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:44,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:45,051 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 385 [2024-10-11 17:08:45,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 364 transitions, 758 flow. Second operand has 6 states, 6 states have (on average 280.5) internal successors, (1683), 6 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:45,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:45,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 385 [2024-10-11 17:08:45,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:45,355 INFO L124 PetriNetUnfolderBase]: 450/2135 cut-off events. [2024-10-11 17:08:45,356 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 17:08:45,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3211 conditions, 2135 events. 450/2135 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12037 event pairs, 342 based on Foata normal form. 0/1934 useless extension candidates. Maximal degree in co-relation 2833. Up to 980 conditions per place. [2024-10-11 17:08:45,365 INFO L140 encePairwiseOnDemand]: 379/385 looper letters, 96 selfloop transitions, 5 changer transitions 0/363 dead transitions. [2024-10-11 17:08:45,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 363 transitions, 958 flow [2024-10-11 17:08:45,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:45,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:45,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1740 transitions. [2024-10-11 17:08:45,368 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7532467532467533 [2024-10-11 17:08:45,368 INFO L175 Difference]: Start difference. First operand has 370 places, 364 transitions, 758 flow. Second operand 6 states and 1740 transitions. [2024-10-11 17:08:45,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 363 transitions, 958 flow [2024-10-11 17:08:45,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 363 transitions, 948 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:45,372 INFO L231 Difference]: Finished difference. Result has 369 places, 363 transitions, 756 flow [2024-10-11 17:08:45,373 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=756, PETRI_PLACES=369, PETRI_TRANSITIONS=363} [2024-10-11 17:08:45,373 INFO L277 CegarLoopForPetriNet]: 374 programPoint places, -5 predicate places. [2024-10-11 17:08:45,374 INFO L471 AbstractCegarLoop]: Abstraction has has 369 places, 363 transitions, 756 flow [2024-10-11 17:08:45,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 280.5) internal successors, (1683), 6 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:45,375 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:45,375 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:45,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 17:08:45,375 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:08:45,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:45,375 INFO L85 PathProgramCache]: Analyzing trace with hash 372214182, now seen corresponding path program 1 times [2024-10-11 17:08:45,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:45,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441570113] [2024-10-11 17:08:45,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:45,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:45,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:45,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:45,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441570113] [2024-10-11 17:08:45,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441570113] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:45,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325289491] [2024-10-11 17:08:45,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:45,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:45,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:45,520 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:45,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 17:08:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:45,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:08:45,695 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:45,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:45,816 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:08:45,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:45,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325289491] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:08:45,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:08:45,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 17:08:45,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087493858] [2024-10-11 17:08:45,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:08:45,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:08:45,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:45,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:08:45,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 17:08:45,953 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 360 out of 385 [2024-10-11 17:08:45,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 363 transitions, 756 flow. Second operand has 10 states, 10 states have (on average 361.8) internal successors, (3618), 10 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:45,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:45,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 360 of 385 [2024-10-11 17:08:45,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:46,094 INFO L124 PetriNetUnfolderBase]: 29/1019 cut-off events. [2024-10-11 17:08:46,095 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 17:08:46,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 1019 events. 29/1019 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1980 event pairs, 18 based on Foata normal form. 4/981 useless extension candidates. Maximal degree in co-relation 581. Up to 49 conditions per place. [2024-10-11 17:08:46,098 INFO L140 encePairwiseOnDemand]: 379/385 looper letters, 15 selfloop transitions, 9 changer transitions 0/371 dead transitions. [2024-10-11 17:08:46,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 371 transitions, 822 flow [2024-10-11 17:08:46,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:08:46,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 17:08:46,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3266 transitions. [2024-10-11 17:08:46,102 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9425685425685426 [2024-10-11 17:08:46,102 INFO L175 Difference]: Start difference. First operand has 369 places, 363 transitions, 756 flow. Second operand 9 states and 3266 transitions. [2024-10-11 17:08:46,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 371 transitions, 822 flow [2024-10-11 17:08:46,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 371 transitions, 812 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:46,108 INFO L231 Difference]: Finished difference. Result has 375 places, 369 transitions, 796 flow [2024-10-11 17:08:46,108 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=796, PETRI_PLACES=375, PETRI_TRANSITIONS=369} [2024-10-11 17:08:46,109 INFO L277 CegarLoopForPetriNet]: 374 programPoint places, 1 predicate places. [2024-10-11 17:08:46,109 INFO L471 AbstractCegarLoop]: Abstraction has has 375 places, 369 transitions, 796 flow [2024-10-11 17:08:46,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 361.8) internal successors, (3618), 10 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:46,110 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:46,110 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:46,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 17:08:46,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 17:08:46,315 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:08:46,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:46,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1669176018, now seen corresponding path program 2 times [2024-10-11 17:08:46,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:46,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123819942] [2024-10-11 17:08:46,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:46,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:46,622 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-10-11 17:08:46,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:46,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123819942] [2024-10-11 17:08:46,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123819942] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:46,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28304195] [2024-10-11 17:08:46,623 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:08:46,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:46,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:46,625 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:46,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 17:08:46,831 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:08:46,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:08:46,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 17:08:46,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:46,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-11 17:08:46,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-11 17:08:46,901 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:46,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-11 17:08:46,925 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:46,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-11 17:08:46,946 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-10-11 17:08:46,946 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:08:46,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28304195] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:46,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:08:46,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-10-11 17:08:46,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206581605] [2024-10-11 17:08:46,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:46,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:46,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:46,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:46,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-11 17:08:47,528 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 385 [2024-10-11 17:08:47,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 369 transitions, 796 flow. Second operand has 6 states, 6 states have (on average 309.3333333333333) internal successors, (1856), 6 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:47,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:47,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 385 [2024-10-11 17:08:47,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:47,695 INFO L124 PetriNetUnfolderBase]: 75/1333 cut-off events. [2024-10-11 17:08:47,695 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-11 17:08:47,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1733 conditions, 1333 events. 75/1333 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4021 event pairs, 42 based on Foata normal form. 0/1250 useless extension candidates. Maximal degree in co-relation 1161. Up to 314 conditions per place. [2024-10-11 17:08:47,702 INFO L140 encePairwiseOnDemand]: 373/385 looper letters, 61 selfloop transitions, 10 changer transitions 0/367 dead transitions. [2024-10-11 17:08:47,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 367 transitions, 934 flow [2024-10-11 17:08:47,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:47,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:47,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1885 transitions. [2024-10-11 17:08:47,705 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.816017316017316 [2024-10-11 17:08:47,705 INFO L175 Difference]: Start difference. First operand has 375 places, 369 transitions, 796 flow. Second operand 6 states and 1885 transitions. [2024-10-11 17:08:47,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 367 transitions, 934 flow [2024-10-11 17:08:47,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 367 transitions, 928 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-11 17:08:47,711 INFO L231 Difference]: Finished difference. Result has 377 places, 367 transitions, 806 flow [2024-10-11 17:08:47,711 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=786, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=806, PETRI_PLACES=377, PETRI_TRANSITIONS=367} [2024-10-11 17:08:47,712 INFO L277 CegarLoopForPetriNet]: 374 programPoint places, 3 predicate places. [2024-10-11 17:08:47,712 INFO L471 AbstractCegarLoop]: Abstraction has has 377 places, 367 transitions, 806 flow [2024-10-11 17:08:47,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 309.3333333333333) internal successors, (1856), 6 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:47,713 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:47,713 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:47,727 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 17:08:47,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:47,914 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:08:47,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:47,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1043668894, now seen corresponding path program 1 times [2024-10-11 17:08:47,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:47,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582355662] [2024-10-11 17:08:47,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:47,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:48,238 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-10-11 17:08:48,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:48,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582355662] [2024-10-11 17:08:48,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582355662] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:48,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443808322] [2024-10-11 17:08:48,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:48,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:48,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:48,243 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:48,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 17:08:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:48,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 1393 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 17:08:48,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:48,880 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:48,881 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:08:49,185 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:49,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443808322] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:08:49,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:08:49,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-10-11 17:08:49,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202075498] [2024-10-11 17:08:49,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:08:49,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 17:08:49,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:49,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 17:08:49,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-10-11 17:08:49,279 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 385 [2024-10-11 17:08:49,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 367 transitions, 806 flow. Second operand has 19 states, 19 states have (on average 356.5263157894737) internal successors, (6774), 19 states have internal predecessors, (6774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:49,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:49,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 385 [2024-10-11 17:08:49,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:50,497 INFO L124 PetriNetUnfolderBase]: 30/2397 cut-off events. [2024-10-11 17:08:50,497 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-10-11 17:08:50,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2713 conditions, 2397 events. 30/2397 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1974 event pairs, 18 based on Foata normal form. 13/2370 useless extension candidates. Maximal degree in co-relation 2261. Up to 51 conditions per place. [2024-10-11 17:08:50,501 INFO L140 encePairwiseOnDemand]: 374/385 looper letters, 47 selfloop transitions, 68 changer transitions 0/453 dead transitions. [2024-10-11 17:08:50,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 453 transitions, 1446 flow [2024-10-11 17:08:50,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-10-11 17:08:50,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-10-11 17:08:50,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 22430 transitions. [2024-10-11 17:08:50,536 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9247577819006391 [2024-10-11 17:08:50,536 INFO L175 Difference]: Start difference. First operand has 377 places, 367 transitions, 806 flow. Second operand 63 states and 22430 transitions. [2024-10-11 17:08:50,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 453 transitions, 1446 flow [2024-10-11 17:08:50,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 453 transitions, 1426 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:50,545 INFO L231 Difference]: Finished difference. Result has 450 places, 429 transitions, 1306 flow [2024-10-11 17:08:50,545 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=786, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=1306, PETRI_PLACES=450, PETRI_TRANSITIONS=429} [2024-10-11 17:08:50,546 INFO L277 CegarLoopForPetriNet]: 374 programPoint places, 76 predicate places. [2024-10-11 17:08:50,546 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 429 transitions, 1306 flow [2024-10-11 17:08:50,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 356.5263157894737) internal successors, (6774), 19 states have internal predecessors, (6774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:50,549 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:50,549 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:50,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 17:08:50,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:50,754 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:08:50,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:50,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1868637559, now seen corresponding path program 2 times [2024-10-11 17:08:50,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:50,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83126182] [2024-10-11 17:08:50,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:50,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:52,855 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-11 17:08:52,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:52,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83126182] [2024-10-11 17:08:52,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83126182] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:52,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048186974] [2024-10-11 17:08:52,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:08:52,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:52,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:52,863 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:52,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 17:08:53,427 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:08:53,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:08:53,430 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 17:08:53,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:53,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:08:53,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-11 17:08:53,525 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:53,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-10-11 17:08:53,554 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:53,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-10-11 17:08:53,582 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8249 trivial. 0 not checked. [2024-10-11 17:08:53,583 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:08:53,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048186974] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:53,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:08:53,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-11 17:08:53,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920301171] [2024-10-11 17:08:53,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:53,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:53,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:53,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:53,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-11 17:08:54,088 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 385 [2024-10-11 17:08:54,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 429 transitions, 1306 flow. Second operand has 6 states, 6 states have (on average 318.3333333333333) internal successors, (1910), 6 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:54,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:54,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 385 [2024-10-11 17:08:54,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:55,036 INFO L124 PetriNetUnfolderBase]: 188/3178 cut-off events. [2024-10-11 17:08:55,037 INFO L125 PetriNetUnfolderBase]: For 432/432 co-relation queries the response was YES. [2024-10-11 17:08:55,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4436 conditions, 3178 events. 188/3178 cut-off events. For 432/432 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 8044 event pairs, 126 based on Foata normal form. 0/3019 useless extension candidates. Maximal degree in co-relation 2458. Up to 899 conditions per place. [2024-10-11 17:08:55,045 INFO L140 encePairwiseOnDemand]: 379/385 looper letters, 58 selfloop transitions, 5 changer transitions 0/428 dead transitions. [2024-10-11 17:08:55,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 428 transitions, 1430 flow [2024-10-11 17:08:55,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:55,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:55,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1930 transitions. [2024-10-11 17:08:55,047 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8354978354978355 [2024-10-11 17:08:55,048 INFO L175 Difference]: Start difference. First operand has 450 places, 429 transitions, 1306 flow. Second operand 6 states and 1930 transitions. [2024-10-11 17:08:55,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 428 transitions, 1430 flow [2024-10-11 17:08:55,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 428 transitions, 1354 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-10-11 17:08:55,055 INFO L231 Difference]: Finished difference. Result has 447 places, 428 transitions, 1238 flow [2024-10-11 17:08:55,055 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=1228, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1238, PETRI_PLACES=447, PETRI_TRANSITIONS=428} [2024-10-11 17:08:55,056 INFO L277 CegarLoopForPetriNet]: 374 programPoint places, 73 predicate places. [2024-10-11 17:08:55,056 INFO L471 AbstractCegarLoop]: Abstraction has has 447 places, 428 transitions, 1238 flow [2024-10-11 17:08:55,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 318.3333333333333) internal successors, (1910), 6 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:55,057 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:55,057 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:55,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 17:08:55,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-11 17:08:55,258 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:08:55,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:55,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1888424829, now seen corresponding path program 1 times [2024-10-11 17:08:55,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:55,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589173605] [2024-10-11 17:08:55,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:55,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:57,421 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-11 17:08:57,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:57,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589173605] [2024-10-11 17:08:57,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589173605] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:57,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499607545] [2024-10-11 17:08:57,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:57,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:57,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:57,427 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:57,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 17:08:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:58,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 5579 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 17:08:58,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:59,287 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-11 17:08:59,287 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:09:00,020 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-11 17:09:00,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499607545] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:09:00,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:09:00,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-10-11 17:09:00,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778683390] [2024-10-11 17:09:00,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:09:00,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-11 17:09:00,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:00,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-11 17:09:00,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 17:09:00,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 360 out of 385 [2024-10-11 17:09:00,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 428 transitions, 1238 flow. Second operand has 34 states, 34 states have (on average 362.11764705882354) internal successors, (12312), 34 states have internal predecessors, (12312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:00,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:00,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 360 of 385 [2024-10-11 17:09:00,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:02,384 INFO L124 PetriNetUnfolderBase]: 30/4556 cut-off events. [2024-10-11 17:09:02,384 INFO L125 PetriNetUnfolderBase]: For 3207/3207 co-relation queries the response was YES. [2024-10-11 17:09:02,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5367 conditions, 4556 events. 30/4556 cut-off events. For 3207/3207 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1968 event pairs, 18 based on Foata normal form. 24/4541 useless extension candidates. Maximal degree in co-relation 4948. Up to 78 conditions per place. [2024-10-11 17:09:02,391 INFO L140 encePairwiseOnDemand]: 379/385 looper letters, 47 selfloop transitions, 135 changer transitions 0/529 dead transitions. [2024-10-11 17:09:02,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 529 transitions, 2366 flow [2024-10-11 17:09:02,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-11 17:09:02,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-10-11 17:09:02,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 16280 transitions. [2024-10-11 17:09:02,405 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9396825396825397 [2024-10-11 17:09:02,405 INFO L175 Difference]: Start difference. First operand has 447 places, 428 transitions, 1238 flow. Second operand 45 states and 16280 transitions. [2024-10-11 17:09:02,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 529 transitions, 2366 flow [2024-10-11 17:09:02,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 529 transitions, 2356 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:09:02,423 INFO L231 Difference]: Finished difference. Result has 495 places, 503 transitions, 2102 flow [2024-10-11 17:09:02,423 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=1228, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=2102, PETRI_PLACES=495, PETRI_TRANSITIONS=503} [2024-10-11 17:09:02,424 INFO L277 CegarLoopForPetriNet]: 374 programPoint places, 121 predicate places. [2024-10-11 17:09:02,424 INFO L471 AbstractCegarLoop]: Abstraction has has 495 places, 503 transitions, 2102 flow [2024-10-11 17:09:02,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 362.11764705882354) internal successors, (12312), 34 states have internal predecessors, (12312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:02,428 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:02,429 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:02,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 17:09:02,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-11 17:09:02,630 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:09:02,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:02,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1515465347, now seen corresponding path program 2 times [2024-10-11 17:09:02,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:02,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787928690] [2024-10-11 17:09:02,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:02,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:11,229 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-11 17:09:11,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:11,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787928690] [2024-10-11 17:09:11,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787928690] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:09:11,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567273859] [2024-10-11 17:09:11,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:09:11,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:09:11,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:09:11,232 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:09:11,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 17:09:12,319 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:09:12,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:09:12,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 17:09:12,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:09:12,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:09:12,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-11 17:09:12,432 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:09:12,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-10-11 17:09:12,468 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:09:12,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-10-11 17:09:12,513 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39241 trivial. 0 not checked. [2024-10-11 17:09:12,514 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:09:12,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567273859] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:12,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:09:12,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2024-10-11 17:09:12,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083944464] [2024-10-11 17:09:12,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:12,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:09:12,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:12,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:09:12,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2024-10-11 17:09:12,913 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 385 [2024-10-11 17:09:12,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 503 transitions, 2102 flow. Second operand has 6 states, 6 states have (on average 283.1666666666667) internal successors, (1699), 6 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:12,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:12,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 385 [2024-10-11 17:09:12,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:19,071 INFO L124 PetriNetUnfolderBase]: 1238/7686 cut-off events. [2024-10-11 17:09:19,071 INFO L125 PetriNetUnfolderBase]: For 1218/1218 co-relation queries the response was YES. [2024-10-11 17:09:19,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11953 conditions, 7686 events. 1238/7686 cut-off events. For 1218/1218 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 27964 event pairs, 1026 based on Foata normal form. 0/7302 useless extension candidates. Maximal degree in co-relation 7662. Up to 3430 conditions per place. [2024-10-11 17:09:19,092 INFO L140 encePairwiseOnDemand]: 379/385 looper letters, 96 selfloop transitions, 5 changer transitions 0/502 dead transitions. [2024-10-11 17:09:19,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 502 transitions, 2302 flow [2024-10-11 17:09:19,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:09:19,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:09:19,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1740 transitions. [2024-10-11 17:09:19,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7532467532467533 [2024-10-11 17:09:19,094 INFO L175 Difference]: Start difference. First operand has 495 places, 503 transitions, 2102 flow. Second operand 6 states and 1740 transitions. [2024-10-11 17:09:19,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 502 transitions, 2302 flow [2024-10-11 17:09:19,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 502 transitions, 2194 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-10-11 17:09:19,106 INFO L231 Difference]: Finished difference. Result has 481 places, 502 transitions, 2002 flow [2024-10-11 17:09:19,106 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=1992, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=502, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=497, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2002, PETRI_PLACES=481, PETRI_TRANSITIONS=502} [2024-10-11 17:09:19,107 INFO L277 CegarLoopForPetriNet]: 374 programPoint places, 107 predicate places. [2024-10-11 17:09:19,107 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 502 transitions, 2002 flow [2024-10-11 17:09:19,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 283.1666666666667) internal successors, (1699), 6 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:19,108 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:19,109 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:19,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 17:09:19,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-11 17:09:19,310 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:09:19,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:19,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1569494204, now seen corresponding path program 1 times [2024-10-11 17:09:19,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:19,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874206041] [2024-10-11 17:09:19,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:19,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:28,134 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-11 17:09:28,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:28,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874206041] [2024-10-11 17:09:28,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874206041] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:09:28,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461065067] [2024-10-11 17:09:28,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:28,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:09:28,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:09:28,140 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:09:28,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 17:09:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:30,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 11542 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-11 17:09:30,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:09:31,818 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-11 17:09:31,819 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:09:33,554 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-11 17:09:33,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461065067] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:09:33,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:09:33,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-10-11 17:09:33,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212203133] [2024-10-11 17:09:33,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:09:33,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-10-11 17:09:33,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:33,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-10-11 17:09:33,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-10-11 17:09:33,617 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 360 out of 385 [2024-10-11 17:09:33,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 502 transitions, 2002 flow. Second operand has 63 states, 63 states have (on average 362.12698412698415) internal successors, (22814), 63 states have internal predecessors, (22814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:33,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:33,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 360 of 385 [2024-10-11 17:09:33,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:39,978 INFO L124 PetriNetUnfolderBase]: 30/8605 cut-off events. [2024-10-11 17:09:39,978 INFO L125 PetriNetUnfolderBase]: For 13371/13371 co-relation queries the response was YES. [2024-10-11 17:09:39,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10535 conditions, 8605 events. 30/8605 cut-off events. For 13371/13371 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1972 event pairs, 18 based on Foata normal form. 45/8612 useless extension candidates. Maximal degree in co-relation 10115. Up to 168 conditions per place. [2024-10-11 17:09:39,993 INFO L140 encePairwiseOnDemand]: 379/385 looper letters, 92 selfloop transitions, 270 changer transitions 0/708 dead transitions. [2024-10-11 17:09:39,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 708 transitions, 4912 flow [2024-10-11 17:09:39,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-10-11 17:09:39,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2024-10-11 17:09:40,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 32547 transitions. [2024-10-11 17:09:40,006 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9393073593073593 [2024-10-11 17:09:40,006 INFO L175 Difference]: Start difference. First operand has 481 places, 502 transitions, 2002 flow. Second operand 90 states and 32547 transitions. [2024-10-11 17:09:40,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 708 transitions, 4912 flow [2024-10-11 17:09:40,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 708 transitions, 4902 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:09:40,026 INFO L231 Difference]: Finished difference. Result has 581 places, 640 transitions, 3984 flow [2024-10-11 17:09:40,027 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=1992, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=502, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=90, PETRI_FLOW=3984, PETRI_PLACES=581, PETRI_TRANSITIONS=640} [2024-10-11 17:09:40,027 INFO L277 CegarLoopForPetriNet]: 374 programPoint places, 207 predicate places. [2024-10-11 17:09:40,027 INFO L471 AbstractCegarLoop]: Abstraction has has 581 places, 640 transitions, 3984 flow [2024-10-11 17:09:40,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 362.12698412698415) internal successors, (22814), 63 states have internal predecessors, (22814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:40,032 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:40,033 INFO L204 CegarLoopForPetriNet]: trace histogram [60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:40,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 17:09:40,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:09:40,238 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:09:40,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:40,239 INFO L85 PathProgramCache]: Analyzing trace with hash -661792124, now seen corresponding path program 2 times [2024-10-11 17:09:40,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:40,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009822781] [2024-10-11 17:09:40,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:40,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:51,863 INFO L134 CoverageAnalysis]: Checked inductivity of 159451 backedges. 0 proven. 81091 refuted. 0 times theorem prover too weak. 78360 trivial. 0 not checked. [2024-10-11 17:09:51,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:51,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009822781] [2024-10-11 17:09:51,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009822781] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:09:51,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649159448] [2024-10-11 17:09:51,864 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:09:51,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:09:51,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:09:51,866 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:09:51,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process