./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_24-evilcollapse_nr.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_24-evilcollapse_nr.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 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:08:36,408 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:08:36,480 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:08:36,484 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:08:36,485 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:08:36,517 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:08:36,519 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:08:36,520 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:08:36,520 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:08:36,522 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:08:36,522 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:08:36,523 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:08:36,524 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:08:36,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:08:36,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:08:36,525 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:08:36,527 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:08:36,527 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:08:36,527 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:08:36,528 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:08:36,528 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:08:36,529 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:08:36,529 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:08:36,529 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:08:36,530 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:08:36,530 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:08:36,530 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:08:36,531 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:08:36,531 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:08:36,532 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:08:36,532 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:08:36,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:08:36,533 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:08:36,533 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:08:36,533 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:08:36,533 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:08:36,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:08:36,534 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:08:36,534 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:08:36,535 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:08:36,535 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:08:36,535 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a [2024-10-11 17:08:36,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:08:36,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:08:36,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:08:36,804 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:08:36,806 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:08:36,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2024-10-11 17:08:38,307 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:08:38,573 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:08:38,574 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2024-10-11 17:08:38,593 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/9e7f83cb9/22d979c1d5854c8ab0fc1c92d389ef9a/FLAG138418116 [2024-10-11 17:08:38,889 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/9e7f83cb9/22d979c1d5854c8ab0fc1c92d389ef9a [2024-10-11 17:08:38,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:08:38,892 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:08:38,894 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:08:38,894 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:08:38,899 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:08:38,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:08:38" (1/1) ... [2024-10-11 17:08:38,900 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5237ddae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:38, skipping insertion in model container [2024-10-11 17:08:38,900 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:08:38" (1/1) ... [2024-10-11 17:08:38,956 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:08:39,371 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:39,372 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:39,373 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:39,374 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:39,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:08:39,421 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:08:39,474 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:39,475 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:39,476 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:39,476 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:08:39,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:08:39,592 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:08:39,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:39 WrapperNode [2024-10-11 17:08:39,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:08:39,594 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:08:39,595 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:08:39,596 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:08:39,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:39" (1/1) ... [2024-10-11 17:08:39,635 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:39" (1/1) ... [2024-10-11 17:08:39,721 INFO L138 Inliner]: procedures = 273, calls = 31, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 253 [2024-10-11 17:08:39,725 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:08:39,726 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:08:39,726 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:08:39,726 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:08:39,738 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:39" (1/1) ... [2024-10-11 17:08:39,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:39" (1/1) ... [2024-10-11 17:08:39,748 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:39" (1/1) ... [2024-10-11 17:08:39,752 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:39" (1/1) ... [2024-10-11 17:08:39,777 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:39" (1/1) ... [2024-10-11 17:08:39,784 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:39" (1/1) ... [2024-10-11 17:08:39,790 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:39" (1/1) ... [2024-10-11 17:08:39,796 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:39" (1/1) ... [2024-10-11 17:08:39,800 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:08:39,805 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:08:39,805 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:08:39,805 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:08:39,806 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:39" (1/1) ... [2024-10-11 17:08:39,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:08:39,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:39,846 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 17:08:39,850 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 17:08:39,886 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-10-11 17:08:39,886 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-10-11 17:08:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-11 17:08:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:08:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:08:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:08:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:08:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 17:08:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:08:39,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-11 17:08:39,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:08:39,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:08:39,890 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 17:08:40,054 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:08:40,056 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:08:40,553 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:08:40,553 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:08:40,607 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:08:40,613 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-11 17:08:40,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:08:40 BoogieIcfgContainer [2024-10-11 17:08:40,614 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:08:40,616 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:08:40,616 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:08:40,620 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:08:40,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:08:38" (1/3) ... [2024-10-11 17:08:40,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490df3ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:08:40, skipping insertion in model container [2024-10-11 17:08:40,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:08:39" (2/3) ... [2024-10-11 17:08:40,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490df3ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:08:40, skipping insertion in model container [2024-10-11 17:08:40,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:08:40" (3/3) ... [2024-10-11 17:08:40,624 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_24-evilcollapse_nr.i [2024-10-11 17:08:40,642 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:08:40,643 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-11 17:08:40,643 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:08:40,761 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 17:08:40,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 361 places, 371 transitions, 750 flow [2024-10-11 17:08:40,950 INFO L124 PetriNetUnfolderBase]: 17/369 cut-off events. [2024-10-11 17:08:40,951 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:40,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 369 events. 17/369 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 793 event pairs, 0 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 294. Up to 2 conditions per place. [2024-10-11 17:08:40,964 INFO L82 GeneralOperation]: Start removeDead. Operand has 361 places, 371 transitions, 750 flow [2024-10-11 17:08:40,976 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 359 places, 369 transitions, 744 flow [2024-10-11 17:08:40,990 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:08:41,001 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;@549f8a9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:08:41,001 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-10-11 17:08:41,018 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:08:41,019 INFO L124 PetriNetUnfolderBase]: 1/45 cut-off events. [2024-10-11 17:08:41,019 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:41,019 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:41,020 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:41,021 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:41,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:41,027 INFO L85 PathProgramCache]: Analyzing trace with hash 213288283, now seen corresponding path program 1 times [2024-10-11 17:08:41,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:41,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236043830] [2024-10-11 17:08:41,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:41,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:41,789 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 17:08:41,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:41,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236043830] [2024-10-11 17:08:41,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236043830] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:41,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:41,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:41,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892257197] [2024-10-11 17:08:41,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:41,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:41,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:41,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:41,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:42,466 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 371 [2024-10-11 17:08:42,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 369 transitions, 744 flow. Second operand has 6 states, 6 states have (on average 270.3333333333333) internal successors, (1622), 6 states have internal predecessors, (1622), 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 17:08:42,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:42,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 371 [2024-10-11 17:08:42,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:42,997 INFO L124 PetriNetUnfolderBase]: 450/1840 cut-off events. [2024-10-11 17:08:42,997 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-11 17:08:43,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2747 conditions, 1840 events. 450/1840 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11559 event pairs, 342 based on Foata normal form. 154/1782 useless extension candidates. Maximal degree in co-relation 2477. Up to 854 conditions per place. [2024-10-11 17:08:43,014 INFO L140 encePairwiseOnDemand]: 349/371 looper letters, 80 selfloop transitions, 10 changer transitions 2/357 dead transitions. [2024-10-11 17:08:43,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 357 transitions, 900 flow [2024-10-11 17:08:43,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:43,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:43,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1716 transitions. [2024-10-11 17:08:43,038 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.77088948787062 [2024-10-11 17:08:43,040 INFO L175 Difference]: Start difference. First operand has 359 places, 369 transitions, 744 flow. Second operand 6 states and 1716 transitions. [2024-10-11 17:08:43,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 357 transitions, 900 flow [2024-10-11 17:08:43,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 357 transitions, 898 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:08:43,053 INFO L231 Difference]: Finished difference. Result has 360 places, 355 transitions, 734 flow [2024-10-11 17:08:43,056 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=734, PETRI_PLACES=360, PETRI_TRANSITIONS=355} [2024-10-11 17:08:43,059 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, 1 predicate places. [2024-10-11 17:08:43,059 INFO L471 AbstractCegarLoop]: Abstraction has has 360 places, 355 transitions, 734 flow [2024-10-11 17:08:43,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 270.3333333333333) internal successors, (1622), 6 states have internal predecessors, (1622), 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 17:08:43,061 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:43,061 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] [2024-10-11 17:08:43,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:08:43,062 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:43,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:43,063 INFO L85 PathProgramCache]: Analyzing trace with hash 94145668, now seen corresponding path program 1 times [2024-10-11 17:08:43,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:43,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721641723] [2024-10-11 17:08:43,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:43,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:43,395 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 17:08:43,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:43,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721641723] [2024-10-11 17:08:43,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721641723] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:43,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:43,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:43,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018212510] [2024-10-11 17:08:43,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:43,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:43,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:43,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:43,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:43,914 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 371 [2024-10-11 17:08:43,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 355 transitions, 734 flow. Second operand has 6 states, 6 states have (on average 270.3333333333333) internal successors, (1622), 6 states have internal predecessors, (1622), 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 17:08:43,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:43,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 371 [2024-10-11 17:08:43,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:44,183 INFO L124 PetriNetUnfolderBase]: 450/1836 cut-off events. [2024-10-11 17:08:44,184 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:44,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2752 conditions, 1836 events. 450/1836 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11492 event pairs, 342 based on Foata normal form. 0/1628 useless extension candidates. Maximal degree in co-relation 2578. Up to 854 conditions per place. [2024-10-11 17:08:44,199 INFO L140 encePairwiseOnDemand]: 359/371 looper letters, 80 selfloop transitions, 10 changer transitions 0/353 dead transitions. [2024-10-11 17:08:44,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 353 transitions, 910 flow [2024-10-11 17:08:44,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:44,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:44,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1706 transitions. [2024-10-11 17:08:44,204 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.766397124887691 [2024-10-11 17:08:44,205 INFO L175 Difference]: Start difference. First operand has 360 places, 355 transitions, 734 flow. Second operand 6 states and 1706 transitions. [2024-10-11 17:08:44,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 353 transitions, 910 flow [2024-10-11 17:08:44,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 353 transitions, 890 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:44,219 INFO L231 Difference]: Finished difference. Result has 356 places, 353 transitions, 730 flow [2024-10-11 17:08:44,220 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=730, PETRI_PLACES=356, PETRI_TRANSITIONS=353} [2024-10-11 17:08:44,221 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, -3 predicate places. [2024-10-11 17:08:44,222 INFO L471 AbstractCegarLoop]: Abstraction has has 356 places, 353 transitions, 730 flow [2024-10-11 17:08:44,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 270.3333333333333) internal successors, (1622), 6 states have internal predecessors, (1622), 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 17:08:44,224 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:44,224 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:44,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:08:44,225 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:44,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:44,226 INFO L85 PathProgramCache]: Analyzing trace with hash 868605457, now seen corresponding path program 1 times [2024-10-11 17:08:44,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:44,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612386264] [2024-10-11 17:08:44,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:44,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:44,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:44,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:44,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612386264] [2024-10-11 17:08:44,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612386264] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:44,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:44,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:08:44,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618694940] [2024-10-11 17:08:44,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:44,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:08:44,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:44,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:08:44,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:08:44,324 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 371 [2024-10-11 17:08:44,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 353 transitions, 730 flow. Second operand has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 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 17:08:44,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:44,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 371 [2024-10-11 17:08:44,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:44,448 INFO L124 PetriNetUnfolderBase]: 30/655 cut-off events. [2024-10-11 17:08:44,448 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:44,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 731 conditions, 655 events. 30/655 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2575 event pairs, 18 based on Foata normal form. 1/601 useless extension candidates. Maximal degree in co-relation 493. Up to 45 conditions per place. [2024-10-11 17:08:44,455 INFO L140 encePairwiseOnDemand]: 368/371 looper letters, 11 selfloop transitions, 2 changer transitions 0/354 dead transitions. [2024-10-11 17:08:44,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 354 transitions, 758 flow [2024-10-11 17:08:44,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:08:44,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:08:44,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1061 transitions. [2024-10-11 17:08:44,458 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9532794249775381 [2024-10-11 17:08:44,458 INFO L175 Difference]: Start difference. First operand has 356 places, 353 transitions, 730 flow. Second operand 3 states and 1061 transitions. [2024-10-11 17:08:44,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 354 transitions, 758 flow [2024-10-11 17:08:44,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 354 transitions, 738 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:44,469 INFO L231 Difference]: Finished difference. Result has 354 places, 354 transitions, 722 flow [2024-10-11 17:08:44,470 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=354, PETRI_TRANSITIONS=354} [2024-10-11 17:08:44,472 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, -5 predicate places. [2024-10-11 17:08:44,473 INFO L471 AbstractCegarLoop]: Abstraction has has 354 places, 354 transitions, 722 flow [2024-10-11 17:08:44,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 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] [2024-10-11 17:08:44,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:08:44,475 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:44,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:44,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1288224689, now seen corresponding path program 1 times [2024-10-11 17:08:44,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:44,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521325288] [2024-10-11 17:08:44,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:44,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:44,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:44,892 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 17:08:44,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:44,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521325288] [2024-10-11 17:08:44,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521325288] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:44,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:44,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:44,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810176073] [2024-10-11 17:08:44,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:44,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:44,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:44,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:44,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:45,261 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 371 [2024-10-11 17:08:45,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 354 transitions, 722 flow. Second operand has 6 states, 6 states have (on average 270.6666666666667) internal successors, (1624), 6 states have internal predecessors, (1624), 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 17:08:45,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:45,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 371 [2024-10-11 17:08:45,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:45,545 INFO L124 PetriNetUnfolderBase]: 451/1958 cut-off events. [2024-10-11 17:08:45,545 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:08:45,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2918 conditions, 1958 events. 451/1958 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12160 event pairs, 342 based on Foata normal form. 0/1746 useless extension candidates. Maximal degree in co-relation 2726. Up to 902 conditions per place. [2024-10-11 17:08:45,557 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 87 selfloop transitions, 5 changer transitions 0/353 dead transitions. [2024-10-11 17:08:45,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 353 transitions, 904 flow [2024-10-11 17:08:45,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:45,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:45,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1701 transitions. [2024-10-11 17:08:45,561 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7641509433962265 [2024-10-11 17:08:45,561 INFO L175 Difference]: Start difference. First operand has 354 places, 354 transitions, 722 flow. Second operand 6 states and 1701 transitions. [2024-10-11 17:08:45,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 353 transitions, 904 flow [2024-10-11 17:08:45,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 353 transitions, 902 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:08:45,567 INFO L231 Difference]: Finished difference. Result has 357 places, 353 transitions, 728 flow [2024-10-11 17:08:45,568 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=728, PETRI_PLACES=357, PETRI_TRANSITIONS=353} [2024-10-11 17:08:45,569 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, -2 predicate places. [2024-10-11 17:08:45,569 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 353 transitions, 728 flow [2024-10-11 17:08:45,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 270.6666666666667) internal successors, (1624), 6 states have internal predecessors, (1624), 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 17:08:45,570 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:45,570 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] [2024-10-11 17:08:45,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:08:45,571 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:45,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:45,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1482197880, now seen corresponding path program 1 times [2024-10-11 17:08:45,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:45,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398398290] [2024-10-11 17:08:45,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:45,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:45,621 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 17:08:45,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:45,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398398290] [2024-10-11 17:08:45,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398398290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:45,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:45,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:08:45,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105821480] [2024-10-11 17:08:45,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:45,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:08:45,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:45,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:08:45,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:08:45,636 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 371 [2024-10-11 17:08:45,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 353 transitions, 728 flow. Second operand has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 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 17:08:45,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:45,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 371 [2024-10-11 17:08:45,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:45,739 INFO L124 PetriNetUnfolderBase]: 30/841 cut-off events. [2024-10-11 17:08:45,739 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:45,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 841 events. 30/841 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2581 event pairs, 18 based on Foata normal form. 2/782 useless extension candidates. Maximal degree in co-relation 571. Up to 49 conditions per place. [2024-10-11 17:08:45,744 INFO L140 encePairwiseOnDemand]: 368/371 looper letters, 11 selfloop transitions, 2 changer transitions 0/354 dead transitions. [2024-10-11 17:08:45,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 354 transitions, 756 flow [2024-10-11 17:08:45,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:08:45,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:08:45,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1061 transitions. [2024-10-11 17:08:45,747 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9532794249775381 [2024-10-11 17:08:45,747 INFO L175 Difference]: Start difference. First operand has 357 places, 353 transitions, 728 flow. Second operand 3 states and 1061 transitions. [2024-10-11 17:08:45,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 354 transitions, 756 flow [2024-10-11 17:08:45,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 354 transitions, 746 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:45,753 INFO L231 Difference]: Finished difference. Result has 355 places, 354 transitions, 730 flow [2024-10-11 17:08:45,753 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=730, PETRI_PLACES=355, PETRI_TRANSITIONS=354} [2024-10-11 17:08:45,754 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, -4 predicate places. [2024-10-11 17:08:45,754 INFO L471 AbstractCegarLoop]: Abstraction has has 355 places, 354 transitions, 730 flow [2024-10-11 17:08:45,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 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 17:08:45,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:45,755 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] [2024-10-11 17:08:45,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 17:08:45,756 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:45,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:45,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1947466662, now seen corresponding path program 1 times [2024-10-11 17:08:45,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:45,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307139960] [2024-10-11 17:08:45,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:45,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:46,215 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 17:08:46,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:46,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307139960] [2024-10-11 17:08:46,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307139960] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:46,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:46,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:46,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146456240] [2024-10-11 17:08:46,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:46,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:46,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:46,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:46,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:46,878 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 371 [2024-10-11 17:08:46,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 354 transitions, 730 flow. Second operand has 6 states, 6 states have (on average 305.5) internal successors, (1833), 6 states have internal predecessors, (1833), 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 17:08:46,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:46,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 371 [2024-10-11 17:08:46,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:47,132 INFO L124 PetriNetUnfolderBase]: 76/1153 cut-off events. [2024-10-11 17:08:47,132 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 17:08:47,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1470 conditions, 1153 events. 76/1153 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4688 event pairs, 42 based on Foata normal form. 0/1057 useless extension candidates. Maximal degree in co-relation 1011. Up to 263 conditions per place. [2024-10-11 17:08:47,140 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 54 selfloop transitions, 5 changer transitions 0/353 dead transitions. [2024-10-11 17:08:47,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 353 transitions, 846 flow [2024-10-11 17:08:47,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:47,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:47,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1866 transitions. [2024-10-11 17:08:47,144 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8382749326145552 [2024-10-11 17:08:47,144 INFO L175 Difference]: Start difference. First operand has 355 places, 354 transitions, 730 flow. Second operand 6 states and 1866 transitions. [2024-10-11 17:08:47,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 353 transitions, 846 flow [2024-10-11 17:08:47,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 353 transitions, 844 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:08:47,150 INFO L231 Difference]: Finished difference. Result has 358 places, 353 transitions, 736 flow [2024-10-11 17:08:47,151 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=736, PETRI_PLACES=358, PETRI_TRANSITIONS=353} [2024-10-11 17:08:47,151 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, -1 predicate places. [2024-10-11 17:08:47,152 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 353 transitions, 736 flow [2024-10-11 17:08:47,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 305.5) internal successors, (1833), 6 states have internal predecessors, (1833), 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 17:08:47,153 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:47,153 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] [2024-10-11 17:08:47,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 17:08:47,154 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:47,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:47,154 INFO L85 PathProgramCache]: Analyzing trace with hash 2124639414, now seen corresponding path program 1 times [2024-10-11 17:08:47,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:47,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444047641] [2024-10-11 17:08:47,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:47,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:47,658 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 17:08:47,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:47,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444047641] [2024-10-11 17:08:47,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444047641] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:47,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:47,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:47,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483888498] [2024-10-11 17:08:47,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:47,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:47,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:47,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:47,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:48,175 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 371 [2024-10-11 17:08:48,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 353 transitions, 736 flow. Second operand has 6 states, 6 states have (on average 273.3333333333333) internal successors, (1640), 6 states have internal predecessors, (1640), 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 17:08:48,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:48,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 371 [2024-10-11 17:08:48,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:48,558 INFO L124 PetriNetUnfolderBase]: 451/2138 cut-off events. [2024-10-11 17:08:48,558 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 17:08:48,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3202 conditions, 2138 events. 451/2138 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12393 event pairs, 342 based on Foata normal form. 0/1926 useless extension candidates. Maximal degree in co-relation 2769. Up to 968 conditions per place. [2024-10-11 17:08:48,573 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 87 selfloop transitions, 5 changer transitions 0/352 dead transitions. [2024-10-11 17:08:48,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 352 transitions, 918 flow [2024-10-11 17:08:48,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:48,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:48,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1701 transitions. [2024-10-11 17:08:48,578 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7641509433962265 [2024-10-11 17:08:48,578 INFO L175 Difference]: Start difference. First operand has 358 places, 353 transitions, 736 flow. Second operand 6 states and 1701 transitions. [2024-10-11 17:08:48,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 352 transitions, 918 flow [2024-10-11 17:08:48,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 352 transitions, 908 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:48,585 INFO L231 Difference]: Finished difference. Result has 357 places, 352 transitions, 734 flow [2024-10-11 17:08:48,586 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=734, PETRI_PLACES=357, PETRI_TRANSITIONS=352} [2024-10-11 17:08:48,587 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, -2 predicate places. [2024-10-11 17:08:48,587 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 352 transitions, 734 flow [2024-10-11 17:08:48,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 273.3333333333333) internal successors, (1640), 6 states have internal predecessors, (1640), 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 17:08:48,588 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:48,588 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] [2024-10-11 17:08:48,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:08:48,589 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:48,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:48,589 INFO L85 PathProgramCache]: Analyzing trace with hash -740298437, now seen corresponding path program 1 times [2024-10-11 17:08:48,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:48,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943580260] [2024-10-11 17:08:48,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:48,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:49,059 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 17:08:49,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:49,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943580260] [2024-10-11 17:08:49,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943580260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:49,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:49,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:49,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593681140] [2024-10-11 17:08:49,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:49,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:49,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:49,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:49,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:49,438 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 371 [2024-10-11 17:08:49,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 352 transitions, 734 flow. Second operand has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 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 17:08:49,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:49,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 371 [2024-10-11 17:08:49,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:49,824 INFO L124 PetriNetUnfolderBase]: 451/2134 cut-off events. [2024-10-11 17:08:49,824 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 17:08:49,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3182 conditions, 2134 events. 451/2134 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12332 event pairs, 342 based on Foata normal form. 0/1926 useless extension candidates. Maximal degree in co-relation 2785. Up to 952 conditions per place. [2024-10-11 17:08:49,836 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 83 selfloop transitions, 5 changer transitions 0/351 dead transitions. [2024-10-11 17:08:49,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 351 transitions, 908 flow [2024-10-11 17:08:49,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:49,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:49,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1721 transitions. [2024-10-11 17:08:49,840 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7731356693620844 [2024-10-11 17:08:49,840 INFO L175 Difference]: Start difference. First operand has 357 places, 352 transitions, 734 flow. Second operand 6 states and 1721 transitions. [2024-10-11 17:08:49,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 351 transitions, 908 flow [2024-10-11 17:08:49,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 351 transitions, 898 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:49,847 INFO L231 Difference]: Finished difference. Result has 356 places, 351 transitions, 732 flow [2024-10-11 17:08:49,849 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=732, PETRI_PLACES=356, PETRI_TRANSITIONS=351} [2024-10-11 17:08:49,851 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, -3 predicate places. [2024-10-11 17:08:49,851 INFO L471 AbstractCegarLoop]: Abstraction has has 356 places, 351 transitions, 732 flow [2024-10-11 17:08:49,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 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 17:08:49,853 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:49,853 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] [2024-10-11 17:08:49,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:08:49,853 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:49,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:49,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1998976421, now seen corresponding path program 1 times [2024-10-11 17:08:49,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:49,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385892902] [2024-10-11 17:08:49,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:49,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:50,327 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 17:08:50,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:50,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385892902] [2024-10-11 17:08:50,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385892902] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:50,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:50,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:50,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115001389] [2024-10-11 17:08:50,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:50,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:50,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:50,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:50,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:50,699 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 371 [2024-10-11 17:08:50,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 351 transitions, 732 flow. Second operand has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 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 17:08:50,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:50,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 371 [2024-10-11 17:08:50,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:51,034 INFO L124 PetriNetUnfolderBase]: 451/2130 cut-off events. [2024-10-11 17:08:51,034 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:08:51,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3178 conditions, 2130 events. 451/2130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12276 event pairs, 342 based on Foata normal form. 0/1926 useless extension candidates. Maximal degree in co-relation 2800. Up to 952 conditions per place. [2024-10-11 17:08:51,048 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 83 selfloop transitions, 5 changer transitions 0/350 dead transitions. [2024-10-11 17:08:51,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 350 transitions, 906 flow [2024-10-11 17:08:51,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:51,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:51,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1721 transitions. [2024-10-11 17:08:51,053 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7731356693620844 [2024-10-11 17:08:51,054 INFO L175 Difference]: Start difference. First operand has 356 places, 351 transitions, 732 flow. Second operand 6 states and 1721 transitions. [2024-10-11 17:08:51,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 350 transitions, 906 flow [2024-10-11 17:08:51,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 350 transitions, 896 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:51,062 INFO L231 Difference]: Finished difference. Result has 355 places, 350 transitions, 730 flow [2024-10-11 17:08:51,062 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=730, PETRI_PLACES=355, PETRI_TRANSITIONS=350} [2024-10-11 17:08:51,064 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, -4 predicate places. [2024-10-11 17:08:51,064 INFO L471 AbstractCegarLoop]: Abstraction has has 355 places, 350 transitions, 730 flow [2024-10-11 17:08:51,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 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 17:08:51,066 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:51,066 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] [2024-10-11 17:08:51,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 17:08:51,067 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:51,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:51,067 INFO L85 PathProgramCache]: Analyzing trace with hash -362237043, now seen corresponding path program 1 times [2024-10-11 17:08:51,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:51,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510340776] [2024-10-11 17:08:51,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:51,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:51,617 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 17:08:51,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:51,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510340776] [2024-10-11 17:08:51,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510340776] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:51,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:51,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:51,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029805748] [2024-10-11 17:08:51,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:51,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:51,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:51,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:51,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:51,902 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 371 [2024-10-11 17:08:51,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 350 transitions, 730 flow. Second operand has 6 states, 6 states have (on average 274.5) internal successors, (1647), 6 states have internal predecessors, (1647), 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 17:08:51,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:51,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 371 [2024-10-11 17:08:51,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:52,285 INFO L124 PetriNetUnfolderBase]: 451/2126 cut-off events. [2024-10-11 17:08:52,285 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 17:08:52,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3194 conditions, 2126 events. 451/2126 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12266 event pairs, 342 based on Foata normal form. 0/1926 useless extension candidates. Maximal degree in co-relation 2813. Up to 972 conditions per place. [2024-10-11 17:08:52,304 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 88 selfloop transitions, 5 changer transitions 0/349 dead transitions. [2024-10-11 17:08:52,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 349 transitions, 914 flow [2024-10-11 17:08:52,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:52,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:52,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1696 transitions. [2024-10-11 17:08:52,308 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7619047619047619 [2024-10-11 17:08:52,308 INFO L175 Difference]: Start difference. First operand has 355 places, 350 transitions, 730 flow. Second operand 6 states and 1696 transitions. [2024-10-11 17:08:52,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 349 transitions, 914 flow [2024-10-11 17:08:52,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 349 transitions, 904 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:52,316 INFO L231 Difference]: Finished difference. Result has 354 places, 349 transitions, 728 flow [2024-10-11 17:08:52,318 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=728, PETRI_PLACES=354, PETRI_TRANSITIONS=349} [2024-10-11 17:08:52,320 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, -5 predicate places. [2024-10-11 17:08:52,320 INFO L471 AbstractCegarLoop]: Abstraction has has 354 places, 349 transitions, 728 flow [2024-10-11 17:08:52,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 274.5) internal successors, (1647), 6 states have internal predecessors, (1647), 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 17:08:52,321 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:52,321 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, 1, 1, 1, 1] [2024-10-11 17:08:52,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 17:08:52,322 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:52,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:52,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1335879777, now seen corresponding path program 1 times [2024-10-11 17:08:52,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:52,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756571132] [2024-10-11 17:08:52,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:52,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:52,573 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 17:08:52,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:52,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756571132] [2024-10-11 17:08:52,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756571132] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:52,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567879725] [2024-10-11 17:08:52,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:52,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:52,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:52,577 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 17:08:52,578 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 17:08:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:52,802 INFO L255 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:08:52,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:52,986 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 17:08:52,986 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:08:53,143 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 17:08:53,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567879725] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:08:53,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:08:53,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 17:08:53,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772395675] [2024-10-11 17:08:53,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:08:53,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:08:53,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:53,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:08:53,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 17:08:53,170 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 371 [2024-10-11 17:08:53,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 349 transitions, 728 flow. Second operand has 10 states, 10 states have (on average 347.8) internal successors, (3478), 10 states have internal predecessors, (3478), 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 17:08:53,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:53,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 371 [2024-10-11 17:08:53,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:53,374 INFO L124 PetriNetUnfolderBase]: 30/1005 cut-off events. [2024-10-11 17:08:53,374 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 17:08:53,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 1005 events. 30/1005 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1997 event pairs, 18 based on Foata normal form. 4/968 useless extension candidates. Maximal degree in co-relation 564. Up to 49 conditions per place. [2024-10-11 17:08:53,379 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 15 selfloop transitions, 9 changer transitions 0/357 dead transitions. [2024-10-11 17:08:53,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 357 transitions, 794 flow [2024-10-11 17:08:53,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:08:53,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 17:08:53,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3140 transitions. [2024-10-11 17:08:53,386 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9404013177598083 [2024-10-11 17:08:53,386 INFO L175 Difference]: Start difference. First operand has 354 places, 349 transitions, 728 flow. Second operand 9 states and 3140 transitions. [2024-10-11 17:08:53,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 357 transitions, 794 flow [2024-10-11 17:08:53,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 357 transitions, 784 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:53,393 INFO L231 Difference]: Finished difference. Result has 360 places, 355 transitions, 768 flow [2024-10-11 17:08:53,394 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=768, PETRI_PLACES=360, PETRI_TRANSITIONS=355} [2024-10-11 17:08:53,394 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, 1 predicate places. [2024-10-11 17:08:53,394 INFO L471 AbstractCegarLoop]: Abstraction has has 360 places, 355 transitions, 768 flow [2024-10-11 17:08:53,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 347.8) internal successors, (3478), 10 states have internal predecessors, (3478), 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 17:08:53,396 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:53,396 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] [2024-10-11 17:08:53,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 17:08:53,600 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 17:08:53,601 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:53,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:53,602 INFO L85 PathProgramCache]: Analyzing trace with hash -2078138507, now seen corresponding path program 2 times [2024-10-11 17:08:53,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:53,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659300299] [2024-10-11 17:08:53,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:53,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:54,005 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 17:08:54,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:54,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659300299] [2024-10-11 17:08:54,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659300299] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:54,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414761478] [2024-10-11 17:08:54,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:08:54,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:54,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:54,008 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 17:08:54,030 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 17:08:54,263 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:08:54,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:08:54,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 17:08:54,276 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:54,321 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 17:08:54,335 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 17:08:54,366 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:54,366 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 17:08:54,405 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:54,406 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 17:08:54,434 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 17:08:54,434 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:08:54,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414761478] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:54,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:08:54,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-10-11 17:08:54,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639044013] [2024-10-11 17:08:54,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:54,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:54,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:54,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:54,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-11 17:08:55,123 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 371 [2024-10-11 17:08:55,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 355 transitions, 768 flow. Second operand has 6 states, 6 states have (on average 308.3333333333333) internal successors, (1850), 6 states have internal predecessors, (1850), 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 17:08:55,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:55,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 371 [2024-10-11 17:08:55,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:55,400 INFO L124 PetriNetUnfolderBase]: 76/1320 cut-off events. [2024-10-11 17:08:55,400 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-11 17:08:55,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1708 conditions, 1320 events. 76/1320 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4049 event pairs, 42 based on Foata normal form. 0/1237 useless extension candidates. Maximal degree in co-relation 1133. Up to 307 conditions per place. [2024-10-11 17:08:55,407 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 54 selfloop transitions, 5 changer transitions 0/354 dead transitions. [2024-10-11 17:08:55,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 354 transitions, 884 flow [2024-10-11 17:08:55,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:55,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:55,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1866 transitions. [2024-10-11 17:08:55,411 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8382749326145552 [2024-10-11 17:08:55,411 INFO L175 Difference]: Start difference. First operand has 360 places, 355 transitions, 768 flow. Second operand 6 states and 1866 transitions. [2024-10-11 17:08:55,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 354 transitions, 884 flow [2024-10-11 17:08:55,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 354 transitions, 878 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-11 17:08:55,418 INFO L231 Difference]: Finished difference. Result has 363 places, 354 transitions, 770 flow [2024-10-11 17:08:55,418 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=770, PETRI_PLACES=363, PETRI_TRANSITIONS=354} [2024-10-11 17:08:55,419 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, 4 predicate places. [2024-10-11 17:08:55,419 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 354 transitions, 770 flow [2024-10-11 17:08:55,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 308.3333333333333) internal successors, (1850), 6 states have internal predecessors, (1850), 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 17:08:55,420 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:55,421 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] [2024-10-11 17:08:55,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 17:08:55,624 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 17:08:55,625 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:55,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:55,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1040596266, now seen corresponding path program 1 times [2024-10-11 17:08:55,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:55,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744219759] [2024-10-11 17:08:55,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:55,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:56,007 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 17:08:56,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:56,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744219759] [2024-10-11 17:08:56,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744219759] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:56,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247391235] [2024-10-11 17:08:56,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:56,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:56,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:56,011 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 17:08:56,012 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 17:08:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:56,423 INFO L255 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 17:08:56,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:56,794 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 17:08:56,795 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:08:57,195 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 17:08:57,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247391235] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:08:57,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:08:57,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-10-11 17:08:57,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105738793] [2024-10-11 17:08:57,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:08:57,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 17:08:57,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:57,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 17:08:57,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-10-11 17:08:57,284 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 371 [2024-10-11 17:08:57,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 354 transitions, 770 flow. Second operand has 19 states, 19 states have (on average 342.5263157894737) internal successors, (6508), 19 states have internal predecessors, (6508), 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 17:08:57,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:57,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 371 [2024-10-11 17:08:57,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:58,713 INFO L124 PetriNetUnfolderBase]: 31/2384 cut-off events. [2024-10-11 17:08:58,713 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-10-11 17:08:58,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2695 conditions, 2384 events. 31/2384 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1981 event pairs, 18 based on Foata normal form. 13/2357 useless extension candidates. Maximal degree in co-relation 2295. Up to 51 conditions per place. [2024-10-11 17:08:58,718 INFO L140 encePairwiseOnDemand]: 360/371 looper letters, 47 selfloop transitions, 68 changer transitions 0/440 dead transitions. [2024-10-11 17:08:58,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 440 transitions, 1410 flow [2024-10-11 17:08:58,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-10-11 17:08:58,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-10-11 17:08:58,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 21548 transitions. [2024-10-11 17:08:58,752 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9219184529157575 [2024-10-11 17:08:58,752 INFO L175 Difference]: Start difference. First operand has 363 places, 354 transitions, 770 flow. Second operand 63 states and 21548 transitions. [2024-10-11 17:08:58,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 440 transitions, 1410 flow [2024-10-11 17:08:58,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 440 transitions, 1400 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:58,762 INFO L231 Difference]: Finished difference. Result has 436 places, 416 transitions, 1280 flow [2024-10-11 17:08:58,763 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=1280, PETRI_PLACES=436, PETRI_TRANSITIONS=416} [2024-10-11 17:08:58,764 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, 77 predicate places. [2024-10-11 17:08:58,764 INFO L471 AbstractCegarLoop]: Abstraction has has 436 places, 416 transitions, 1280 flow [2024-10-11 17:08:58,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 342.5263157894737) internal successors, (6508), 19 states have internal predecessors, (6508), 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 17:08:58,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:58,767 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] [2024-10-11 17:08:58,787 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 17:08:58,971 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 17:08:58,972 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:58,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:58,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1632036081, now seen corresponding path program 2 times [2024-10-11 17:08:58,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:58,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066833522] [2024-10-11 17:08:58,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:58,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:02,342 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 17:09:02,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:02,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066833522] [2024-10-11 17:09:02,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066833522] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:09:02,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732941257] [2024-10-11 17:09:02,343 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:09:02,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:09:02,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:09:02,345 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 17:09:02,346 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 17:09:02,942 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:09:02,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:09:02,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 17:09:02,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:09:02,998 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 17:09:03,014 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 17:09:03,039 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:09:03,040 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 17:09:03,077 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:09:03,077 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 17:09:03,114 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 17:09:03,114 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:09:03,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732941257] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:03,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:09:03,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-11 17:09:03,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282281118] [2024-10-11 17:09:03,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:03,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:09:03,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:03,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:09:03,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-11 17:09:03,667 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 371 [2024-10-11 17:09:03,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 416 transitions, 1280 flow. Second operand has 6 states, 6 states have (on average 308.3333333333333) internal successors, (1850), 6 states have internal predecessors, (1850), 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 17:09:03,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:03,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 371 [2024-10-11 17:09:03,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:04,664 INFO L124 PetriNetUnfolderBase]: 77/2699 cut-off events. [2024-10-11 17:09:04,665 INFO L125 PetriNetUnfolderBase]: For 432/432 co-relation queries the response was YES. [2024-10-11 17:09:04,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3793 conditions, 2699 events. 77/2699 cut-off events. For 432/432 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4040 event pairs, 42 based on Foata normal form. 0/2617 useless extension candidates. Maximal degree in co-relation 1813. Up to 735 conditions per place. [2024-10-11 17:09:04,680 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 54 selfloop transitions, 5 changer transitions 0/415 dead transitions. [2024-10-11 17:09:04,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 415 transitions, 1396 flow [2024-10-11 17:09:04,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:09:04,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:09:04,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1866 transitions. [2024-10-11 17:09:04,683 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8382749326145552 [2024-10-11 17:09:04,683 INFO L175 Difference]: Start difference. First operand has 436 places, 416 transitions, 1280 flow. Second operand 6 states and 1866 transitions. [2024-10-11 17:09:04,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 415 transitions, 1396 flow [2024-10-11 17:09:04,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 415 transitions, 1320 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-10-11 17:09:04,694 INFO L231 Difference]: Finished difference. Result has 433 places, 415 transitions, 1212 flow [2024-10-11 17:09:04,695 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=1202, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1212, PETRI_PLACES=433, PETRI_TRANSITIONS=415} [2024-10-11 17:09:04,695 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, 74 predicate places. [2024-10-11 17:09:04,695 INFO L471 AbstractCegarLoop]: Abstraction has has 433 places, 415 transitions, 1212 flow [2024-10-11 17:09:04,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 308.3333333333333) internal successors, (1850), 6 states have internal predecessors, (1850), 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 17:09:04,696 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:04,697 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] [2024-10-11 17:09:04,714 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 17:09:04,897 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 17:09:04,898 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:09:04,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:04,898 INFO L85 PathProgramCache]: Analyzing trace with hash -199872005, now seen corresponding path program 1 times [2024-10-11 17:09:04,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:04,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132730085] [2024-10-11 17:09:04,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:04,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:05,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:08,225 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 17:09:08,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:08,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132730085] [2024-10-11 17:09:08,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132730085] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:09:08,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787865348] [2024-10-11 17:09:08,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:08,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:09:08,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:09:08,228 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 17:09:08,229 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 17:09:09,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:09,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 5523 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 17:09:09,489 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:09:10,101 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 17:09:10,101 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:09:10,928 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 17:09:10,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787865348] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:09:10,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:09:10,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-10-11 17:09:10,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966878725] [2024-10-11 17:09:10,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:09:10,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-11 17:09:10,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:10,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-11 17:09:10,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 17:09:10,980 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 371 [2024-10-11 17:09:10,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 415 transitions, 1212 flow. Second operand has 34 states, 34 states have (on average 348.1764705882353) internal successors, (11838), 34 states have internal predecessors, (11838), 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 17:09:10,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:10,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 371 [2024-10-11 17:09:10,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:13,240 INFO L124 PetriNetUnfolderBase]: 31/4543 cut-off events. [2024-10-11 17:09:13,241 INFO L125 PetriNetUnfolderBase]: For 3207/3207 co-relation queries the response was YES. [2024-10-11 17:09:13,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5354 conditions, 4543 events. 31/4543 cut-off events. For 3207/3207 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1979 event pairs, 18 based on Foata normal form. 24/4528 useless extension candidates. Maximal degree in co-relation 4938. Up to 78 conditions per place. [2024-10-11 17:09:13,250 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 47 selfloop transitions, 135 changer transitions 0/516 dead transitions. [2024-10-11 17:09:13,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 516 transitions, 2340 flow [2024-10-11 17:09:13,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-11 17:09:13,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-10-11 17:09:13,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 15650 transitions. [2024-10-11 17:09:13,269 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9374064091045223 [2024-10-11 17:09:13,269 INFO L175 Difference]: Start difference. First operand has 433 places, 415 transitions, 1212 flow. Second operand 45 states and 15650 transitions. [2024-10-11 17:09:13,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 516 transitions, 2340 flow [2024-10-11 17:09:13,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 516 transitions, 2330 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:09:13,286 INFO L231 Difference]: Finished difference. Result has 481 places, 490 transitions, 2076 flow [2024-10-11 17:09:13,287 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=1202, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=2076, PETRI_PLACES=481, PETRI_TRANSITIONS=490} [2024-10-11 17:09:13,287 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, 122 predicate places. [2024-10-11 17:09:13,287 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 490 transitions, 2076 flow [2024-10-11 17:09:13,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 348.1764705882353) internal successors, (11838), 34 states have internal predecessors, (11838), 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 17:09:13,291 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:13,292 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] [2024-10-11 17:09:13,322 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 17:09:13,492 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 17:09:13,493 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:09:13,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:13,494 INFO L85 PathProgramCache]: Analyzing trace with hash -857406981, now seen corresponding path program 2 times [2024-10-11 17:09:13,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:13,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27323156] [2024-10-11 17:09:13,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:13,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:22,891 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 17:09:22,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:22,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27323156] [2024-10-11 17:09:22,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27323156] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:09:22,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086905257] [2024-10-11 17:09:22,892 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:09:22,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:09:22,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:09:22,894 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 17:09:22,896 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 17:09:24,148 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:09:24,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:09:24,155 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 17:09:24,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:09:24,233 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 17:09:24,258 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 17:09:24,288 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:09:24,288 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 17:09:24,323 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:09:24,323 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 17:09:24,359 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 17:09:24,359 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:09:24,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086905257] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:24,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:09:24,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2024-10-11 17:09:24,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809930009] [2024-10-11 17:09:24,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:24,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:09:24,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:24,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:09:24,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2024-10-11 17:09:24,923 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 371 [2024-10-11 17:09:24,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 490 transitions, 2076 flow. Second operand has 6 states, 6 states have (on average 309.5) internal successors, (1857), 6 states have internal predecessors, (1857), 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 17:09:24,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:24,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 371 [2024-10-11 17:09:24,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:27,398 INFO L124 PetriNetUnfolderBase]: 201/5444 cut-off events. [2024-10-11 17:09:27,398 INFO L125 PetriNetUnfolderBase]: For 1218/1218 co-relation queries the response was YES. [2024-10-11 17:09:27,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7894 conditions, 5444 events. 201/5444 cut-off events. For 1218/1218 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8982 event pairs, 54 based on Foata normal form. 0/5300 useless extension candidates. Maximal degree in co-relation 4118. Up to 1548 conditions per place. [2024-10-11 17:09:27,424 INFO L140 encePairwiseOnDemand]: 359/371 looper letters, 71 selfloop transitions, 23 changer transitions 0/525 dead transitions. [2024-10-11 17:09:27,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 525 transitions, 2342 flow [2024-10-11 17:09:27,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:09:27,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:09:27,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1907 transitions. [2024-10-11 17:09:27,427 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8566936208445642 [2024-10-11 17:09:27,427 INFO L175 Difference]: Start difference. First operand has 481 places, 490 transitions, 2076 flow. Second operand 6 states and 1907 transitions. [2024-10-11 17:09:27,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 525 transitions, 2342 flow [2024-10-11 17:09:27,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 525 transitions, 2234 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-10-11 17:09:27,448 INFO L231 Difference]: Finished difference. Result has 473 places, 512 transitions, 2126 flow [2024-10-11 17:09:27,449 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=1968, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2126, PETRI_PLACES=473, PETRI_TRANSITIONS=512} [2024-10-11 17:09:27,450 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, 114 predicate places. [2024-10-11 17:09:27,450 INFO L471 AbstractCegarLoop]: Abstraction has has 473 places, 512 transitions, 2126 flow [2024-10-11 17:09:27,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 309.5) internal successors, (1857), 6 states have internal predecessors, (1857), 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 17:09:27,452 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:27,453 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] [2024-10-11 17:09:27,474 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 17:09:27,654 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 17:09:27,655 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:09:27,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:27,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1900335364, now seen corresponding path program 1 times [2024-10-11 17:09:27,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:27,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822751467] [2024-10-11 17:09:27,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:27,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:37,787 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 17:09:37,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:37,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822751467] [2024-10-11 17:09:37,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822751467] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:09:37,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950682511] [2024-10-11 17:09:37,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:37,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:09:37,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:09:37,790 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 17:09:37,793 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 17:09:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:40,581 INFO L255 TraceCheckSpWp]: Trace formula consists of 11429 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-11 17:09:40,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:09:41,932 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 17:09:41,933 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:09:43,821 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 17:09:43,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950682511] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:09:43,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:09:43,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-10-11 17:09:43,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299512793] [2024-10-11 17:09:43,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:09:43,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-10-11 17:09:43,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:43,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-10-11 17:09:43,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-10-11 17:09:43,900 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 371 [2024-10-11 17:09:43,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 512 transitions, 2126 flow. Second operand has 63 states, 63 states have (on average 348.14285714285717) internal successors, (21933), 63 states have internal predecessors, (21933), 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 17:09:43,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:43,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 371 [2024-10-11 17:09:43,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand