./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/28-race_reach_92-evilcollapse_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:56:02,478 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:56:02,560 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:56:02,571 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:56:02,572 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:56:02,603 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:56:02,603 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:56:02,604 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:56:02,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:56:02,605 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:56:02,605 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:56:02,606 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:56:02,606 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:56:02,606 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:56:02,608 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:56:02,609 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:56:02,609 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:56:02,609 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:56:02,609 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:56:02,610 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:56:02,610 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:56:02,614 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:56:02,614 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:56:02,614 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:56:02,614 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:56:02,615 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:56:02,615 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:56:02,615 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:56:02,615 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:56:02,616 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:56:02,616 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:56:02,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:56:02,616 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:56:02,616 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:56:02,617 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:56:02,617 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:56:02,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:56:02,617 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:56:02,617 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:56:02,617 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:56:02,618 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:56:02,619 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 [2024-10-13 09:56:02,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:56:02,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:56:02,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:56:02,879 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:56:02,883 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:56:02,885 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-10-13 09:56:04,404 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:56:04,712 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:56:04,713 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-10-13 09:56:04,729 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92fd16612/103a1a44879f4ed9905b356a1013c697/FLAG1cf2cec26 [2024-10-13 09:56:04,744 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92fd16612/103a1a44879f4ed9905b356a1013c697 [2024-10-13 09:56:04,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:56:04,748 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:56:04,756 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:56:04,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:56:04,762 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:56:04,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:56:04" (1/1) ... [2024-10-13 09:56:04,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19de353f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:56:04, skipping insertion in model container [2024-10-13 09:56:04,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:56:04" (1/1) ... [2024-10-13 09:56:04,814 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:56:05,227 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 09:56:05,228 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 09:56:05,229 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 09:56:05,229 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 09:56:05,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:56:05,288 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:56:05,347 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 09:56:05,348 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 09:56:05,348 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 09:56:05,349 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 09:56:05,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:56:05,424 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:56:05,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:56:05 WrapperNode [2024-10-13 09:56:05,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:56:05,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:56:05,427 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:56:05,427 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:56:05,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:56:05" (1/1) ... [2024-10-13 09:56:05,456 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:56:05" (1/1) ... [2024-10-13 09:56:05,496 INFO L138 Inliner]: procedures = 279, calls = 56, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 378 [2024-10-13 09:56:05,497 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:56:05,497 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:56:05,497 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:56:05,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:56:05,505 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:56:05" (1/1) ... [2024-10-13 09:56:05,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:56:05" (1/1) ... [2024-10-13 09:56:05,515 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:56:05" (1/1) ... [2024-10-13 09:56:05,516 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:56:05" (1/1) ... [2024-10-13 09:56:05,539 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:56:05" (1/1) ... [2024-10-13 09:56:05,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:56:05" (1/1) ... [2024-10-13 09:56:05,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:56:05" (1/1) ... [2024-10-13 09:56:05,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:56:05" (1/1) ... [2024-10-13 09:56:05,559 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:56:05,560 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:56:05,560 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:56:05,560 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:56:05,561 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:56:05" (1/1) ... [2024-10-13 09:56:05,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:56:05,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:56:05,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 09:56:05,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 09:56:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 09:56:05,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-13 09:56:05,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 09:56:05,672 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:56:05,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 09:56:05,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 09:56:05,673 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:56:05,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 09:56:05,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:56:05,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-13 09:56:05,673 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-13 09:56:05,673 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-13 09:56:05,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:56:05,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:56:05,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:56:05,676 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:56:05,869 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:56:05,871 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:56:06,673 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:56:06,673 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:56:06,725 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:56:06,726 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-13 09:56:06,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:56:06 BoogieIcfgContainer [2024-10-13 09:56:06,726 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:56:06,728 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:56:06,730 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:56:06,734 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:56:06,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:56:04" (1/3) ... [2024-10-13 09:56:06,735 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe62771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:56:06, skipping insertion in model container [2024-10-13 09:56:06,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:56:05" (2/3) ... [2024-10-13 09:56:06,735 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe62771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:56:06, skipping insertion in model container [2024-10-13 09:56:06,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:56:06" (3/3) ... [2024-10-13 09:56:06,737 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2024-10-13 09:56:06,752 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:56:06,753 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2024-10-13 09:56:06,753 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:56:06,869 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-13 09:56:06,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 399 places, 423 transitions, 853 flow [2024-10-13 09:56:07,070 INFO L124 PetriNetUnfolderBase]: 29/455 cut-off events. [2024-10-13 09:56:07,070 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:56:07,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 455 events. 29/455 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 943 event pairs, 0 based on Foata normal form. 0/398 useless extension candidates. Maximal degree in co-relation 270. Up to 4 conditions per place. [2024-10-13 09:56:07,079 INFO L82 GeneralOperation]: Start removeDead. Operand has 399 places, 423 transitions, 853 flow [2024-10-13 09:56:07,092 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 399 places, 423 transitions, 853 flow [2024-10-13 09:56:07,101 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:56:07,110 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;@608381b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:56:07,110 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-10-13 09:56:07,120 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:56:07,120 INFO L124 PetriNetUnfolderBase]: 1/43 cut-off events. [2024-10-13 09:56:07,121 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:56:07,121 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:56:07,122 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:56:07,122 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-13 09:56:07,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:56:07,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1133209304, now seen corresponding path program 1 times [2024-10-13 09:56:07,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:56:07,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907535284] [2024-10-13 09:56:07,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:07,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:56:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:07,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:56:07,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:56:07,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907535284] [2024-10-13 09:56:07,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907535284] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:56:07,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:56:07,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:56:07,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246049510] [2024-10-13 09:56:07,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:56:08,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:56:08,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:56:08,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:56:08,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:56:08,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 423 [2024-10-13 09:56:08,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 423 transitions, 853 flow. Second operand has 6 states, 6 states have (on average 294.3333333333333) internal successors, (1766), 6 states have internal predecessors, (1766), 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) [2024-10-13 09:56:08,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:56:08,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 423 [2024-10-13 09:56:08,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:56:09,184 INFO L124 PetriNetUnfolderBase]: 319/1615 cut-off events. [2024-10-13 09:56:09,184 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-10-13 09:56:09,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2321 conditions, 1615 events. 319/1615 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9553 event pairs, 288 based on Foata normal form. 184/1663 useless extension candidates. Maximal degree in co-relation 1972. Up to 690 conditions per place. [2024-10-13 09:56:09,200 INFO L140 encePairwiseOnDemand]: 390/423 looper letters, 96 selfloop transitions, 10 changer transitions 2/398 dead transitions. [2024-10-13 09:56:09,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 398 transitions, 1015 flow [2024-10-13 09:56:09,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:56:09,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:56:09,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1887 transitions. [2024-10-13 09:56:09,226 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7434988179669031 [2024-10-13 09:56:09,228 INFO L175 Difference]: Start difference. First operand has 399 places, 423 transitions, 853 flow. Second operand 6 states and 1887 transitions. [2024-10-13 09:56:09,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 398 transitions, 1015 flow [2024-10-13 09:56:09,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 398 transitions, 1015 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:56:09,247 INFO L231 Difference]: Finished difference. Result has 400 places, 396 transitions, 819 flow [2024-10-13 09:56:09,252 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=819, PETRI_PLACES=400, PETRI_TRANSITIONS=396} [2024-10-13 09:56:09,258 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, 1 predicate places. [2024-10-13 09:56:09,258 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 396 transitions, 819 flow [2024-10-13 09:56:09,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 294.3333333333333) internal successors, (1766), 6 states have internal predecessors, (1766), 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) [2024-10-13 09:56:09,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:56:09,260 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] [2024-10-13 09:56:09,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:56:09,261 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-13 09:56:09,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:56:09,263 INFO L85 PathProgramCache]: Analyzing trace with hash -131650274, now seen corresponding path program 1 times [2024-10-13 09:56:09,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:56:09,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289731882] [2024-10-13 09:56:09,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:09,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:56:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:09,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:56:09,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:56:09,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289731882] [2024-10-13 09:56:09,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289731882] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:56:09,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:56:09,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:56:09,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941836070] [2024-10-13 09:56:09,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:56:09,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:56:09,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:56:09,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:56:09,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:56:10,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 423 [2024-10-13 09:56:10,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 396 transitions, 819 flow. Second operand has 6 states, 6 states have (on average 294.3333333333333) internal successors, (1766), 6 states have internal predecessors, (1766), 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) [2024-10-13 09:56:10,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:56:10,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 423 [2024-10-13 09:56:10,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:56:10,546 INFO L124 PetriNetUnfolderBase]: 319/1611 cut-off events. [2024-10-13 09:56:10,547 INFO L125 PetriNetUnfolderBase]: For 15/23 co-relation queries the response was YES. [2024-10-13 09:56:10,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2328 conditions, 1611 events. 319/1611 cut-off events. For 15/23 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9522 event pairs, 288 based on Foata normal form. 0/1479 useless extension candidates. Maximal degree in co-relation 2153. Up to 690 conditions per place. [2024-10-13 09:56:10,555 INFO L140 encePairwiseOnDemand]: 411/423 looper letters, 96 selfloop transitions, 10 changer transitions 0/394 dead transitions. [2024-10-13 09:56:10,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 394 transitions, 1027 flow [2024-10-13 09:56:10,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:56:10,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:56:10,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1866 transitions. [2024-10-13 09:56:10,562 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.735224586288416 [2024-10-13 09:56:10,563 INFO L175 Difference]: Start difference. First operand has 400 places, 396 transitions, 819 flow. Second operand 6 states and 1866 transitions. [2024-10-13 09:56:10,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 394 transitions, 1027 flow [2024-10-13 09:56:10,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 394 transitions, 1007 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:56:10,573 INFO L231 Difference]: Finished difference. Result has 396 places, 394 transitions, 815 flow [2024-10-13 09:56:10,575 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=795, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=815, PETRI_PLACES=396, PETRI_TRANSITIONS=394} [2024-10-13 09:56:10,575 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -3 predicate places. [2024-10-13 09:56:10,576 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 394 transitions, 815 flow [2024-10-13 09:56:10,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 294.3333333333333) internal successors, (1766), 6 states have internal predecessors, (1766), 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) [2024-10-13 09:56:10,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:56:10,578 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:56:10,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:56:10,579 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-13 09:56:10,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:56:10,580 INFO L85 PathProgramCache]: Analyzing trace with hash -861148191, now seen corresponding path program 1 times [2024-10-13 09:56:10,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:56:10,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782088061] [2024-10-13 09:56:10,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:10,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:56:10,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:10,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:56:10,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:56:10,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782088061] [2024-10-13 09:56:10,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782088061] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:56:10,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:56:10,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:56:10,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534894537] [2024-10-13 09:56:10,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:56:10,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:56:10,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:56:10,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:56:10,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:56:10,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 423 [2024-10-13 09:56:10,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 394 transitions, 815 flow. Second operand has 3 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 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) [2024-10-13 09:56:10,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:56:10,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 423 [2024-10-13 09:56:10,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:56:10,760 INFO L124 PetriNetUnfolderBase]: 15/572 cut-off events. [2024-10-13 09:56:10,761 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2024-10-13 09:56:10,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 572 events. 15/572 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1431 event pairs, 8 based on Foata normal form. 1/529 useless extension candidates. Maximal degree in co-relation 409. Up to 34 conditions per place. [2024-10-13 09:56:10,764 INFO L140 encePairwiseOnDemand]: 420/423 looper letters, 15 selfloop transitions, 2 changer transitions 0/395 dead transitions. [2024-10-13 09:56:10,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 395 transitions, 851 flow [2024-10-13 09:56:10,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:56:10,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:56:10,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1173 transitions. [2024-10-13 09:56:10,768 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9243498817966903 [2024-10-13 09:56:10,768 INFO L175 Difference]: Start difference. First operand has 396 places, 394 transitions, 815 flow. Second operand 3 states and 1173 transitions. [2024-10-13 09:56:10,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 395 transitions, 851 flow [2024-10-13 09:56:10,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 395 transitions, 831 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:56:10,777 INFO L231 Difference]: Finished difference. Result has 394 places, 395 transitions, 807 flow [2024-10-13 09:56:10,778 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=795, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=807, PETRI_PLACES=394, PETRI_TRANSITIONS=395} [2024-10-13 09:56:10,780 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -5 predicate places. [2024-10-13 09:56:10,780 INFO L471 AbstractCegarLoop]: Abstraction has has 394 places, 395 transitions, 807 flow [2024-10-13 09:56:10,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 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) [2024-10-13 09:56:10,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:56:10,781 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] [2024-10-13 09:56:10,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 09:56:10,781 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-13 09:56:10,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:56:10,782 INFO L85 PathProgramCache]: Analyzing trace with hash 2092060128, now seen corresponding path program 1 times [2024-10-13 09:56:10,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:56:10,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712037387] [2024-10-13 09:56:10,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:10,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:56:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:11,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:56:11,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:56:11,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712037387] [2024-10-13 09:56:11,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712037387] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:56:11,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:56:11,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:56:11,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880805863] [2024-10-13 09:56:11,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:56:11,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:56:11,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:56:11,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:56:11,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:56:11,597 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 423 [2024-10-13 09:56:11,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 395 transitions, 807 flow. Second operand has 6 states, 6 states have (on average 294.6666666666667) internal successors, (1768), 6 states have internal predecessors, (1768), 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) [2024-10-13 09:56:11,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:56:11,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 423 [2024-10-13 09:56:11,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:56:11,830 INFO L124 PetriNetUnfolderBase]: 320/1733 cut-off events. [2024-10-13 09:56:11,831 INFO L125 PetriNetUnfolderBase]: For 16/24 co-relation queries the response was YES. [2024-10-13 09:56:11,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2494 conditions, 1733 events. 320/1733 cut-off events. For 16/24 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9927 event pairs, 288 based on Foata normal form. 0/1597 useless extension candidates. Maximal degree in co-relation 2295. Up to 738 conditions per place. [2024-10-13 09:56:11,840 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 103 selfloop transitions, 5 changer transitions 0/394 dead transitions. [2024-10-13 09:56:11,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 394 transitions, 1021 flow [2024-10-13 09:56:11,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:56:11,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:56:11,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1861 transitions. [2024-10-13 09:56:11,844 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7332545311268716 [2024-10-13 09:56:11,845 INFO L175 Difference]: Start difference. First operand has 394 places, 395 transitions, 807 flow. Second operand 6 states and 1861 transitions. [2024-10-13 09:56:11,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 394 transitions, 1021 flow [2024-10-13 09:56:11,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 394 transitions, 1019 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:56:11,851 INFO L231 Difference]: Finished difference. Result has 397 places, 394 transitions, 813 flow [2024-10-13 09:56:11,852 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=813, PETRI_PLACES=397, PETRI_TRANSITIONS=394} [2024-10-13 09:56:11,853 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -2 predicate places. [2024-10-13 09:56:11,853 INFO L471 AbstractCegarLoop]: Abstraction has has 397 places, 394 transitions, 813 flow [2024-10-13 09:56:11,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 294.6666666666667) internal successors, (1768), 6 states have internal predecessors, (1768), 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) [2024-10-13 09:56:11,855 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:56:11,855 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] [2024-10-13 09:56:11,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 09:56:11,856 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-13 09:56:11,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:56:11,856 INFO L85 PathProgramCache]: Analyzing trace with hash 762425590, now seen corresponding path program 1 times [2024-10-13 09:56:11,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:56:11,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825795044] [2024-10-13 09:56:11,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:11,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:56:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:11,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:56:11,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:56:11,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825795044] [2024-10-13 09:56:11,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825795044] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:56:11,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:56:11,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:56:11,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684820201] [2024-10-13 09:56:11,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:56:11,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:56:11,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:56:11,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:56:11,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:56:11,933 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 423 [2024-10-13 09:56:11,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 394 transitions, 813 flow. Second operand has 3 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 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) [2024-10-13 09:56:11,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:56:11,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 423 [2024-10-13 09:56:11,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:56:12,045 INFO L124 PetriNetUnfolderBase]: 15/758 cut-off events. [2024-10-13 09:56:12,045 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2024-10-13 09:56:12,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 829 conditions, 758 events. 15/758 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1638 event pairs, 8 based on Foata normal form. 2/710 useless extension candidates. Maximal degree in co-relation 604. Up to 38 conditions per place. [2024-10-13 09:56:12,048 INFO L140 encePairwiseOnDemand]: 420/423 looper letters, 15 selfloop transitions, 2 changer transitions 0/395 dead transitions. [2024-10-13 09:56:12,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 395 transitions, 849 flow [2024-10-13 09:56:12,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:56:12,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:56:12,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1173 transitions. [2024-10-13 09:56:12,051 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9243498817966903 [2024-10-13 09:56:12,052 INFO L175 Difference]: Start difference. First operand has 397 places, 394 transitions, 813 flow. Second operand 3 states and 1173 transitions. [2024-10-13 09:56:12,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 395 transitions, 849 flow [2024-10-13 09:56:12,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 395 transitions, 839 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:56:12,061 INFO L231 Difference]: Finished difference. Result has 395 places, 395 transitions, 815 flow [2024-10-13 09:56:12,062 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=815, PETRI_PLACES=395, PETRI_TRANSITIONS=395} [2024-10-13 09:56:12,062 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -4 predicate places. [2024-10-13 09:56:12,063 INFO L471 AbstractCegarLoop]: Abstraction has has 395 places, 395 transitions, 815 flow [2024-10-13 09:56:12,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 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) [2024-10-13 09:56:12,066 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:56:12,066 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] [2024-10-13 09:56:12,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 09:56:12,066 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-13 09:56:12,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:56:12,067 INFO L85 PathProgramCache]: Analyzing trace with hash 591731304, now seen corresponding path program 1 times [2024-10-13 09:56:12,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:56:12,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883508250] [2024-10-13 09:56:12,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:12,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:56:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:12,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:56:12,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:56:12,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883508250] [2024-10-13 09:56:12,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883508250] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:56:12,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:56:12,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:56:12,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574067760] [2024-10-13 09:56:12,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:56:12,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:56:12,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:56:12,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:56:12,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:56:13,312 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 423 [2024-10-13 09:56:13,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 395 transitions, 815 flow. Second operand has 6 states, 6 states have (on average 333.5) internal successors, (2001), 6 states have internal predecessors, (2001), 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) [2024-10-13 09:56:13,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:56:13,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 423 [2024-10-13 09:56:13,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:56:13,664 INFO L124 PetriNetUnfolderBase]: 83/1072 cut-off events. [2024-10-13 09:56:13,664 INFO L125 PetriNetUnfolderBase]: For 10/14 co-relation queries the response was YES. [2024-10-13 09:56:13,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1429 conditions, 1072 events. 83/1072 cut-off events. For 10/14 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3553 event pairs, 64 based on Foata normal form. 0/985 useless extension candidates. Maximal degree in co-relation 963. Up to 315 conditions per place. [2024-10-13 09:56:13,669 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 66 selfloop transitions, 5 changer transitions 0/394 dead transitions. [2024-10-13 09:56:13,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 394 transitions, 955 flow [2024-10-13 09:56:13,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:56:13,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:56:13,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2046 transitions. [2024-10-13 09:56:13,674 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.806146572104019 [2024-10-13 09:56:13,674 INFO L175 Difference]: Start difference. First operand has 395 places, 395 transitions, 815 flow. Second operand 6 states and 2046 transitions. [2024-10-13 09:56:13,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 394 transitions, 955 flow [2024-10-13 09:56:13,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 394 transitions, 953 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:56:13,683 INFO L231 Difference]: Finished difference. Result has 398 places, 394 transitions, 821 flow [2024-10-13 09:56:13,684 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=811, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=821, PETRI_PLACES=398, PETRI_TRANSITIONS=394} [2024-10-13 09:56:13,685 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -1 predicate places. [2024-10-13 09:56:13,686 INFO L471 AbstractCegarLoop]: Abstraction has has 398 places, 394 transitions, 821 flow [2024-10-13 09:56:13,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.5) internal successors, (2001), 6 states have internal predecessors, (2001), 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) [2024-10-13 09:56:13,687 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:56:13,688 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] [2024-10-13 09:56:13,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 09:56:13,688 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-13 09:56:13,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:56:13,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1241387691, now seen corresponding path program 1 times [2024-10-13 09:56:13,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:56:13,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492197084] [2024-10-13 09:56:13,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:13,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:56:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:14,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:56:14,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:56:14,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492197084] [2024-10-13 09:56:14,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492197084] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:56:14,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:56:14,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:56:14,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66399765] [2024-10-13 09:56:14,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:56:14,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:56:14,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:56:14,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:56:14,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:56:14,644 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 423 [2024-10-13 09:56:14,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 394 transitions, 821 flow. Second operand has 6 states, 6 states have (on average 297.3333333333333) internal successors, (1784), 6 states have internal predecessors, (1784), 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) [2024-10-13 09:56:14,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:56:14,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 423 [2024-10-13 09:56:14,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:56:15,049 INFO L124 PetriNetUnfolderBase]: 320/1913 cut-off events. [2024-10-13 09:56:15,050 INFO L125 PetriNetUnfolderBase]: For 19/27 co-relation queries the response was YES. [2024-10-13 09:56:15,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2778 conditions, 1913 events. 320/1913 cut-off events. For 19/27 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10547 event pairs, 288 based on Foata normal form. 0/1777 useless extension candidates. Maximal degree in co-relation 2338. Up to 804 conditions per place. [2024-10-13 09:56:15,060 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 103 selfloop transitions, 5 changer transitions 0/393 dead transitions. [2024-10-13 09:56:15,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 393 transitions, 1035 flow [2024-10-13 09:56:15,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:56:15,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:56:15,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1861 transitions. [2024-10-13 09:56:15,065 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7332545311268716 [2024-10-13 09:56:15,065 INFO L175 Difference]: Start difference. First operand has 398 places, 394 transitions, 821 flow. Second operand 6 states and 1861 transitions. [2024-10-13 09:56:15,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 393 transitions, 1035 flow [2024-10-13 09:56:15,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 393 transitions, 1025 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:56:15,073 INFO L231 Difference]: Finished difference. Result has 397 places, 393 transitions, 819 flow [2024-10-13 09:56:15,073 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=819, PETRI_PLACES=397, PETRI_TRANSITIONS=393} [2024-10-13 09:56:15,074 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -2 predicate places. [2024-10-13 09:56:15,074 INFO L471 AbstractCegarLoop]: Abstraction has has 397 places, 393 transitions, 819 flow [2024-10-13 09:56:15,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 297.3333333333333) internal successors, (1784), 6 states have internal predecessors, (1784), 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) [2024-10-13 09:56:15,075 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:56:15,075 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] [2024-10-13 09:56:15,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 09:56:15,076 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-13 09:56:15,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:56:15,077 INFO L85 PathProgramCache]: Analyzing trace with hash -813380364, now seen corresponding path program 1 times [2024-10-13 09:56:15,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:56:15,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444492622] [2024-10-13 09:56:15,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:15,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:56:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:15,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:56:15,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:56:15,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444492622] [2024-10-13 09:56:15,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444492622] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:56:15,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:56:15,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:56:15,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539794814] [2024-10-13 09:56:15,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:56:15,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:56:15,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:56:15,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:56:15,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:56:16,054 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 423 [2024-10-13 09:56:16,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 393 transitions, 819 flow. Second operand has 6 states, 6 states have (on average 302.0) internal successors, (1812), 6 states have internal predecessors, (1812), 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) [2024-10-13 09:56:16,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:56:16,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 423 [2024-10-13 09:56:16,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:56:16,344 INFO L124 PetriNetUnfolderBase]: 320/1909 cut-off events. [2024-10-13 09:56:16,344 INFO L125 PetriNetUnfolderBase]: For 19/27 co-relation queries the response was YES. [2024-10-13 09:56:16,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2758 conditions, 1909 events. 320/1909 cut-off events. For 19/27 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10557 event pairs, 288 based on Foata normal form. 0/1777 useless extension candidates. Maximal degree in co-relation 2354. Up to 788 conditions per place. [2024-10-13 09:56:16,408 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 99 selfloop transitions, 5 changer transitions 0/392 dead transitions. [2024-10-13 09:56:16,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 392 transitions, 1025 flow [2024-10-13 09:56:16,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:56:16,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:56:16,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1881 transitions. [2024-10-13 09:56:16,414 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7411347517730497 [2024-10-13 09:56:16,414 INFO L175 Difference]: Start difference. First operand has 397 places, 393 transitions, 819 flow. Second operand 6 states and 1881 transitions. [2024-10-13 09:56:16,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 392 transitions, 1025 flow [2024-10-13 09:56:16,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 392 transitions, 1015 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:56:16,423 INFO L231 Difference]: Finished difference. Result has 396 places, 392 transitions, 817 flow [2024-10-13 09:56:16,424 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=807, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=817, PETRI_PLACES=396, PETRI_TRANSITIONS=392} [2024-10-13 09:56:16,424 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -3 predicate places. [2024-10-13 09:56:16,425 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 392 transitions, 817 flow [2024-10-13 09:56:16,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 302.0) internal successors, (1812), 6 states have internal predecessors, (1812), 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) [2024-10-13 09:56:16,426 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:56:16,426 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] [2024-10-13 09:56:16,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 09:56:16,427 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-13 09:56:16,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:56:16,427 INFO L85 PathProgramCache]: Analyzing trace with hash 747071657, now seen corresponding path program 1 times [2024-10-13 09:56:16,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:56:16,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85203279] [2024-10-13 09:56:16,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:16,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:56:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:16,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:56:16,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:56:16,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85203279] [2024-10-13 09:56:16,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85203279] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:56:16,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:56:16,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:56:16,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872533446] [2024-10-13 09:56:16,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:56:16,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:56:16,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:56:16,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:56:16,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:56:17,368 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 423 [2024-10-13 09:56:17,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 392 transitions, 817 flow. Second operand has 6 states, 6 states have (on average 302.0) internal successors, (1812), 6 states have internal predecessors, (1812), 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) [2024-10-13 09:56:17,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:56:17,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 423 [2024-10-13 09:56:17,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:56:17,873 INFO L124 PetriNetUnfolderBase]: 320/1905 cut-off events. [2024-10-13 09:56:17,873 INFO L125 PetriNetUnfolderBase]: For 15/23 co-relation queries the response was YES. [2024-10-13 09:56:17,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2754 conditions, 1905 events. 320/1905 cut-off events. For 15/23 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10539 event pairs, 288 based on Foata normal form. 0/1777 useless extension candidates. Maximal degree in co-relation 2369. Up to 788 conditions per place. [2024-10-13 09:56:17,881 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 99 selfloop transitions, 5 changer transitions 0/391 dead transitions. [2024-10-13 09:56:17,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 391 transitions, 1023 flow [2024-10-13 09:56:17,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:56:17,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:56:17,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1881 transitions. [2024-10-13 09:56:17,886 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7411347517730497 [2024-10-13 09:56:17,886 INFO L175 Difference]: Start difference. First operand has 396 places, 392 transitions, 817 flow. Second operand 6 states and 1881 transitions. [2024-10-13 09:56:17,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 391 transitions, 1023 flow [2024-10-13 09:56:17,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 391 transitions, 1013 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:56:17,893 INFO L231 Difference]: Finished difference. Result has 395 places, 391 transitions, 815 flow [2024-10-13 09:56:17,894 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=815, PETRI_PLACES=395, PETRI_TRANSITIONS=391} [2024-10-13 09:56:17,895 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -4 predicate places. [2024-10-13 09:56:17,895 INFO L471 AbstractCegarLoop]: Abstraction has has 395 places, 391 transitions, 815 flow [2024-10-13 09:56:17,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 302.0) internal successors, (1812), 6 states have internal predecessors, (1812), 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) [2024-10-13 09:56:17,897 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:56:17,897 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] [2024-10-13 09:56:17,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 09:56:17,897 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-13 09:56:17,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:56:17,898 INFO L85 PathProgramCache]: Analyzing trace with hash 968324889, now seen corresponding path program 1 times [2024-10-13 09:56:17,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:56:17,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125636977] [2024-10-13 09:56:17,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:17,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:56:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:18,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:56:18,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:56:18,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125636977] [2024-10-13 09:56:18,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125636977] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:56:18,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:56:18,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:56:18,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717508252] [2024-10-13 09:56:18,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:56:18,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:56:18,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:56:18,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:56:18,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:56:18,782 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 423 [2024-10-13 09:56:18,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 391 transitions, 815 flow. Second operand has 6 states, 6 states have (on average 298.5) internal successors, (1791), 6 states have internal predecessors, (1791), 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) [2024-10-13 09:56:18,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:56:18,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 423 [2024-10-13 09:56:18,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:56:19,193 INFO L124 PetriNetUnfolderBase]: 320/1901 cut-off events. [2024-10-13 09:56:19,193 INFO L125 PetriNetUnfolderBase]: For 19/27 co-relation queries the response was YES. [2024-10-13 09:56:19,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2770 conditions, 1901 events. 320/1901 cut-off events. For 19/27 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10502 event pairs, 288 based on Foata normal form. 0/1777 useless extension candidates. Maximal degree in co-relation 2382. Up to 808 conditions per place. [2024-10-13 09:56:19,203 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 104 selfloop transitions, 5 changer transitions 0/390 dead transitions. [2024-10-13 09:56:19,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 390 transitions, 1031 flow [2024-10-13 09:56:19,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:56:19,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:56:19,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1856 transitions. [2024-10-13 09:56:19,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.731284475965327 [2024-10-13 09:56:19,209 INFO L175 Difference]: Start difference. First operand has 395 places, 391 transitions, 815 flow. Second operand 6 states and 1856 transitions. [2024-10-13 09:56:19,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 390 transitions, 1031 flow [2024-10-13 09:56:19,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 390 transitions, 1021 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:56:19,217 INFO L231 Difference]: Finished difference. Result has 394 places, 390 transitions, 813 flow [2024-10-13 09:56:19,219 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=813, PETRI_PLACES=394, PETRI_TRANSITIONS=390} [2024-10-13 09:56:19,220 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -5 predicate places. [2024-10-13 09:56:19,221 INFO L471 AbstractCegarLoop]: Abstraction has has 394 places, 390 transitions, 813 flow [2024-10-13 09:56:19,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 298.5) internal successors, (1791), 6 states have internal predecessors, (1791), 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) [2024-10-13 09:56:19,222 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:56:19,222 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, 1, 1, 1, 1, 1] [2024-10-13 09:56:19,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 09:56:19,222 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-13 09:56:19,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:56:19,223 INFO L85 PathProgramCache]: Analyzing trace with hash -968958471, now seen corresponding path program 1 times [2024-10-13 09:56:19,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:56:19,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550439933] [2024-10-13 09:56:19,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:19,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:56:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:19,413 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:56:19,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:56:19,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550439933] [2024-10-13 09:56:19,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550439933] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:56:19,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839097532] [2024-10-13 09:56:19,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:19,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:56:19,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:56:19,416 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:56:19,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 09:56:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:19,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 09:56:19,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:56:19,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:56:19,829 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:56:19,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:56:19,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839097532] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:56:19,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:56:19,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-13 09:56:19,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329142816] [2024-10-13 09:56:19,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:56:19,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:56:19,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:56:19,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:56:19,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 09:56:19,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 423 [2024-10-13 09:56:19,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 390 transitions, 813 flow. Second operand has 10 states, 10 states have (on average 383.8) internal successors, (3838), 10 states have internal predecessors, (3838), 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) [2024-10-13 09:56:19,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:56:19,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 423 [2024-10-13 09:56:19,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:56:20,213 INFO L124 PetriNetUnfolderBase]: 15/922 cut-off events. [2024-10-13 09:56:20,213 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2024-10-13 09:56:20,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1036 conditions, 922 events. 15/922 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1192 event pairs, 8 based on Foata normal form. 4/896 useless extension candidates. Maximal degree in co-relation 810. Up to 38 conditions per place. [2024-10-13 09:56:20,217 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 19 selfloop transitions, 9 changer transitions 0/398 dead transitions. [2024-10-13 09:56:20,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 398 transitions, 887 flow [2024-10-13 09:56:20,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 09:56:20,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 09:56:20,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3468 transitions. [2024-10-13 09:56:20,224 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9109535066981875 [2024-10-13 09:56:20,224 INFO L175 Difference]: Start difference. First operand has 394 places, 390 transitions, 813 flow. Second operand 9 states and 3468 transitions. [2024-10-13 09:56:20,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 398 transitions, 887 flow [2024-10-13 09:56:20,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 398 transitions, 877 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:56:20,231 INFO L231 Difference]: Finished difference. Result has 400 places, 396 transitions, 853 flow [2024-10-13 09:56:20,232 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=853, PETRI_PLACES=400, PETRI_TRANSITIONS=396} [2024-10-13 09:56:20,232 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, 1 predicate places. [2024-10-13 09:56:20,232 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 396 transitions, 853 flow [2024-10-13 09:56:20,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 383.8) internal successors, (3838), 10 states have internal predecessors, (3838), 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) [2024-10-13 09:56:20,234 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:56:20,235 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:56:20,253 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 09:56:20,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-13 09:56:20,436 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-13 09:56:20,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:56:20,436 INFO L85 PathProgramCache]: Analyzing trace with hash -534055233, now seen corresponding path program 2 times [2024-10-13 09:56:20,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:56:20,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747803331] [2024-10-13 09:56:20,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:20,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:56:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:20,894 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-10-13 09:56:20,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:56:20,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747803331] [2024-10-13 09:56:20,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747803331] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:56:20,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210919613] [2024-10-13 09:56:20,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:56:20,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:56:20,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:56:20,899 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:56:20,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 09:56:21,130 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:56:21,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:56:21,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-13 09:56:21,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:56:21,188 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 16 treesize of output 12 [2024-10-13 09:56:21,203 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 29 treesize of output 28 [2024-10-13 09:56:21,232 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:56:21,232 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 41 treesize of output 43 [2024-10-13 09:56:21,267 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:56:21,267 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 53 treesize of output 58 [2024-10-13 09:56:21,296 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-10-13 09:56:21,296 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:56:21,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210919613] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:56:21,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:56:21,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-10-13 09:56:21,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091509438] [2024-10-13 09:56:21,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:56:21,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:56:21,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:56:21,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:56:21,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-13 09:56:22,102 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 423 [2024-10-13 09:56:22,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 396 transitions, 853 flow. Second operand has 6 states, 6 states have (on average 327.3333333333333) internal successors, (1964), 6 states have internal predecessors, (1964), 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) [2024-10-13 09:56:22,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:56:22,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 423 [2024-10-13 09:56:22,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:56:22,429 INFO L124 PetriNetUnfolderBase]: 83/1238 cut-off events. [2024-10-13 09:56:22,429 INFO L125 PetriNetUnfolderBase]: For 18/22 co-relation queries the response was YES. [2024-10-13 09:56:22,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1674 conditions, 1238 events. 83/1238 cut-off events. For 18/22 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3082 event pairs, 64 based on Foata normal form. 0/1165 useless extension candidates. Maximal degree in co-relation 1092. Up to 362 conditions per place. [2024-10-13 09:56:22,435 INFO L140 encePairwiseOnDemand]: 411/423 looper letters, 69 selfloop transitions, 10 changer transitions 0/394 dead transitions. [2024-10-13 09:56:22,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 394 transitions, 1007 flow [2024-10-13 09:56:22,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:56:22,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:56:22,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2001 transitions. [2024-10-13 09:56:22,439 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7884160756501182 [2024-10-13 09:56:22,440 INFO L175 Difference]: Start difference. First operand has 400 places, 396 transitions, 853 flow. Second operand 6 states and 2001 transitions. [2024-10-13 09:56:22,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 394 transitions, 1007 flow [2024-10-13 09:56:22,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 394 transitions, 1001 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-13 09:56:22,447 INFO L231 Difference]: Finished difference. Result has 402 places, 394 transitions, 863 flow [2024-10-13 09:56:22,448 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=863, PETRI_PLACES=402, PETRI_TRANSITIONS=394} [2024-10-13 09:56:22,449 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, 3 predicate places. [2024-10-13 09:56:22,449 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 394 transitions, 863 flow [2024-10-13 09:56:22,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 327.3333333333333) internal successors, (1964), 6 states have internal predecessors, (1964), 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) [2024-10-13 09:56:22,450 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:56:22,450 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:56:22,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 09:56:22,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-13 09:56:22,655 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-13 09:56:22,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:56:22,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1457215463, now seen corresponding path program 1 times [2024-10-13 09:56:22,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:56:22,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987243732] [2024-10-13 09:56:22,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:22,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:56:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:23,061 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-10-13 09:56:23,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:56:23,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987243732] [2024-10-13 09:56:23,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987243732] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:56:23,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169045910] [2024-10-13 09:56:23,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:23,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:56:23,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:56:23,064 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:56:23,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 09:56:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:23,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 09:56:23,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:56:23,869 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:56:23,870 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:56:24,270 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:56:24,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169045910] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:56:24,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:56:24,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-10-13 09:56:24,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021594970] [2024-10-13 09:56:24,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:56:24,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-13 09:56:24,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:56:24,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-13 09:56:24,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-10-13 09:56:24,394 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 423 [2024-10-13 09:56:24,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 394 transitions, 863 flow. Second operand has 19 states, 19 states have (on average 378.5263157894737) internal successors, (7192), 19 states have internal predecessors, (7192), 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) [2024-10-13 09:56:24,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:56:24,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 423 [2024-10-13 09:56:24,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:56:26,188 INFO L124 PetriNetUnfolderBase]: 16/2300 cut-off events. [2024-10-13 09:56:26,188 INFO L125 PetriNetUnfolderBase]: For 81/82 co-relation queries the response was YES. [2024-10-13 09:56:26,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2601 conditions, 2300 events. 16/2300 cut-off events. For 81/82 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1188 event pairs, 8 based on Foata normal form. 13/2285 useless extension candidates. Maximal degree in co-relation 2372. Up to 40 conditions per place. [2024-10-13 09:56:26,194 INFO L140 encePairwiseOnDemand]: 412/423 looper letters, 51 selfloop transitions, 68 changer transitions 0/480 dead transitions. [2024-10-13 09:56:26,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 480 transitions, 1511 flow [2024-10-13 09:56:26,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-10-13 09:56:26,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-10-13 09:56:26,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 23820 transitions. [2024-10-13 09:56:26,229 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8938421704379151 [2024-10-13 09:56:26,229 INFO L175 Difference]: Start difference. First operand has 402 places, 394 transitions, 863 flow. Second operand 63 states and 23820 transitions. [2024-10-13 09:56:26,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 480 transitions, 1511 flow [2024-10-13 09:56:26,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 480 transitions, 1491 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:56:26,238 INFO L231 Difference]: Finished difference. Result has 475 places, 456 transitions, 1363 flow [2024-10-13 09:56:26,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=1363, PETRI_PLACES=475, PETRI_TRANSITIONS=456} [2024-10-13 09:56:26,240 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, 76 predicate places. [2024-10-13 09:56:26,240 INFO L471 AbstractCegarLoop]: Abstraction has has 475 places, 456 transitions, 1363 flow [2024-10-13 09:56:26,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 378.5263157894737) internal successors, (7192), 19 states have internal predecessors, (7192), 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) [2024-10-13 09:56:26,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:56:26,244 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:56:26,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 09:56:26,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:56:26,445 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-13 09:56:26,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:56:26,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1406395845, now seen corresponding path program 2 times [2024-10-13 09:56:26,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:56:26,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891630241] [2024-10-13 09:56:26,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:26,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:56:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:29,425 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-13 09:56:29,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:56:29,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891630241] [2024-10-13 09:56:29,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891630241] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:56:29,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45053579] [2024-10-13 09:56:29,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:56:29,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:56:29,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:56:29,428 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:56:29,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 09:56:30,278 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:56:30,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:56:30,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-13 09:56:30,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:56:30,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-13 09:56:30,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-13 09:56:30,397 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:56:30,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-10-13 09:56:30,432 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:56:30,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-10-13 09:56:30,468 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8249 trivial. 0 not checked. [2024-10-13 09:56:30,469 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:56:30,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45053579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:56:30,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:56:30,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-13 09:56:30,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540392639] [2024-10-13 09:56:30,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:56:30,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:56:30,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:56:30,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:56:30,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-13 09:56:31,056 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 423 [2024-10-13 09:56:31,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 456 transitions, 1363 flow. Second operand has 6 states, 6 states have (on average 336.3333333333333) internal successors, (2018), 6 states have internal predecessors, (2018), 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) [2024-10-13 09:56:31,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:56:31,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 423 [2024-10-13 09:56:31,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:56:32,163 INFO L124 PetriNetUnfolderBase]: 103/2704 cut-off events. [2024-10-13 09:56:32,164 INFO L125 PetriNetUnfolderBase]: For 441/446 co-relation queries the response was YES. [2024-10-13 09:56:32,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3874 conditions, 2704 events. 103/2704 cut-off events. For 441/446 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4031 event pairs, 80 based on Foata normal form. 0/2622 useless extension candidates. Maximal degree in co-relation 3054. Up to 823 conditions per place. [2024-10-13 09:56:32,172 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 66 selfloop transitions, 5 changer transitions 0/455 dead transitions. [2024-10-13 09:56:32,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 455 transitions, 1503 flow [2024-10-13 09:56:32,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:56:32,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:56:32,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2046 transitions. [2024-10-13 09:56:32,175 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.806146572104019 [2024-10-13 09:56:32,176 INFO L175 Difference]: Start difference. First operand has 475 places, 456 transitions, 1363 flow. Second operand 6 states and 2046 transitions. [2024-10-13 09:56:32,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 455 transitions, 1503 flow [2024-10-13 09:56:32,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 455 transitions, 1427 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-10-13 09:56:32,187 INFO L231 Difference]: Finished difference. Result has 472 places, 455 transitions, 1295 flow [2024-10-13 09:56:32,188 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=1285, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1295, PETRI_PLACES=472, PETRI_TRANSITIONS=455} [2024-10-13 09:56:32,189 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, 73 predicate places. [2024-10-13 09:56:32,189 INFO L471 AbstractCegarLoop]: Abstraction has has 472 places, 455 transitions, 1295 flow [2024-10-13 09:56:32,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 336.3333333333333) internal successors, (2018), 6 states have internal predecessors, (2018), 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) [2024-10-13 09:56:32,190 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:56:32,191 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:56:32,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-13 09:56:32,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:56:32,395 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-13 09:56:32,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:56:32,396 INFO L85 PathProgramCache]: Analyzing trace with hash -302640020, now seen corresponding path program 1 times [2024-10-13 09:56:32,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:56:32,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111742514] [2024-10-13 09:56:32,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:32,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:56:32,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:35,585 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-13 09:56:35,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:56:35,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111742514] [2024-10-13 09:56:35,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111742514] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:56:35,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140761695] [2024-10-13 09:56:35,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:35,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:56:35,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:56:35,587 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:56:35,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 09:56:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:37,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 5607 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 09:56:37,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:56:37,747 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-13 09:56:37,747 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:56:38,594 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-13 09:56:38,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140761695] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:56:38,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:56:38,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-10-13 09:56:38,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366958646] [2024-10-13 09:56:38,596 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:56:38,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-13 09:56:38,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:56:38,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-13 09:56:38,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-13 09:56:38,646 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 423 [2024-10-13 09:56:38,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 455 transitions, 1295 flow. Second operand has 34 states, 34 states have (on average 384.11764705882354) internal successors, (13060), 34 states have internal predecessors, (13060), 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) [2024-10-13 09:56:38,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:56:38,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 423 [2024-10-13 09:56:38,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:56:41,090 INFO L124 PetriNetUnfolderBase]: 16/4459 cut-off events. [2024-10-13 09:56:41,090 INFO L125 PetriNetUnfolderBase]: For 3212/3213 co-relation queries the response was YES. [2024-10-13 09:56:41,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5255 conditions, 4459 events. 16/4459 cut-off events. For 3212/3213 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1186 event pairs, 8 based on Foata normal form. 24/4456 useless extension candidates. Maximal degree in co-relation 5010. Up to 78 conditions per place. [2024-10-13 09:56:41,100 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 51 selfloop transitions, 135 changer transitions 0/556 dead transitions. [2024-10-13 09:56:41,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 556 transitions, 2431 flow [2024-10-13 09:56:41,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-13 09:56:41,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-10-13 09:56:41,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 17274 transitions. [2024-10-13 09:56:41,129 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9074862096138692 [2024-10-13 09:56:41,129 INFO L175 Difference]: Start difference. First operand has 472 places, 455 transitions, 1295 flow. Second operand 45 states and 17274 transitions. [2024-10-13 09:56:41,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 556 transitions, 2431 flow [2024-10-13 09:56:41,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 556 transitions, 2421 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:56:41,151 INFO L231 Difference]: Finished difference. Result has 520 places, 530 transitions, 2159 flow [2024-10-13 09:56:41,152 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=1285, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=2159, PETRI_PLACES=520, PETRI_TRANSITIONS=530} [2024-10-13 09:56:41,153 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, 121 predicate places. [2024-10-13 09:56:41,153 INFO L471 AbstractCegarLoop]: Abstraction has has 520 places, 530 transitions, 2159 flow [2024-10-13 09:56:41,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 384.11764705882354) internal successors, (13060), 34 states have internal predecessors, (13060), 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) [2024-10-13 09:56:41,159 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:56:41,161 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:56:41,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-13 09:56:41,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-13 09:56:41,362 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-13 09:56:41,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:56:41,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1281212780, now seen corresponding path program 2 times [2024-10-13 09:56:41,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:56:41,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918226349] [2024-10-13 09:56:41,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:41,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:56:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:51,185 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-13 09:56:51,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:56:51,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918226349] [2024-10-13 09:56:51,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918226349] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:56:51,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328988200] [2024-10-13 09:56:51,186 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:56:51,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:56:51,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:56:51,188 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:56:51,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 09:56:52,680 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:56:52,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:56:52,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-13 09:56:52,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:56:52,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-13 09:56:52,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-13 09:56:52,897 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:56:52,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-10-13 09:56:52,935 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:56:52,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-10-13 09:56:52,991 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39241 trivial. 0 not checked. [2024-10-13 09:56:52,992 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:56:52,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328988200] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:56:52,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:56:52,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2024-10-13 09:56:52,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579830320] [2024-10-13 09:56:52,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:56:52,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:56:52,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:56:52,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:56:52,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2024-10-13 09:56:53,389 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 423 [2024-10-13 09:56:53,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 530 transitions, 2159 flow. Second operand has 6 states, 6 states have (on average 301.1666666666667) internal successors, (1807), 6 states have internal predecessors, (1807), 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) [2024-10-13 09:56:53,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:56:53,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 423 [2024-10-13 09:56:53,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:56:56,524 INFO L124 PetriNetUnfolderBase]: 360/5770 cut-off events. [2024-10-13 09:56:56,524 INFO L125 PetriNetUnfolderBase]: For 1234/1243 co-relation queries the response was YES. [2024-10-13 09:56:56,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8768 conditions, 5770 events. 360/5770 cut-off events. For 1234/1243 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 12005 event pairs, 324 based on Foata normal form. 0/5638 useless extension candidates. Maximal degree in co-relation 6524. Up to 2196 conditions per place. [2024-10-13 09:56:56,552 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 104 selfloop transitions, 5 changer transitions 0/529 dead transitions. [2024-10-13 09:56:56,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 529 transitions, 2375 flow [2024-10-13 09:56:56,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:56:56,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:56:56,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1856 transitions. [2024-10-13 09:56:56,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.731284475965327 [2024-10-13 09:56:56,554 INFO L175 Difference]: Start difference. First operand has 520 places, 530 transitions, 2159 flow. Second operand 6 states and 1856 transitions. [2024-10-13 09:56:56,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 524 places, 529 transitions, 2375 flow [2024-10-13 09:56:56,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 506 places, 529 transitions, 2267 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-10-13 09:56:56,577 INFO L231 Difference]: Finished difference. Result has 506 places, 529 transitions, 2059 flow [2024-10-13 09:56:56,580 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=2049, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=524, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2059, PETRI_PLACES=506, PETRI_TRANSITIONS=529} [2024-10-13 09:56:56,581 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, 107 predicate places. [2024-10-13 09:56:56,581 INFO L471 AbstractCegarLoop]: Abstraction has has 506 places, 529 transitions, 2059 flow [2024-10-13 09:56:56,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 301.1666666666667) internal successors, (1807), 6 states have internal predecessors, (1807), 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) [2024-10-13 09:56:56,582 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:56:56,583 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:56:56,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-13 09:56:56,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-13 09:56:56,784 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-13 09:56:56,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:56:56,785 INFO L85 PathProgramCache]: Analyzing trace with hash -126437029, now seen corresponding path program 1 times [2024-10-13 09:56:56,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:56:56,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190246097] [2024-10-13 09:56:56,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:56,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:56:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:59,927 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39241 trivial. 0 not checked. [2024-10-13 09:56:59,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:56:59,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190246097] [2024-10-13 09:56:59,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190246097] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:56:59,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:56:59,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:56:59,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382930116] [2024-10-13 09:56:59,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:56:59,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:56:59,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:56:59,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:56:59,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:56:59,951 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 423 [2024-10-13 09:56:59,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 529 transitions, 2059 flow. Second operand has 3 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 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) [2024-10-13 09:56:59,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:56:59,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 423 [2024-10-13 09:56:59,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:57:01,969 INFO L124 PetriNetUnfolderBase]: 39/4727 cut-off events. [2024-10-13 09:57:01,969 INFO L125 PetriNetUnfolderBase]: For 1199/1203 co-relation queries the response was YES. [2024-10-13 09:57:01,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5557 conditions, 4727 events. 39/4727 cut-off events. For 1199/1203 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3152 event pairs, 0 based on Foata normal form. 2/4667 useless extension candidates. Maximal degree in co-relation 4963. Up to 78 conditions per place. [2024-10-13 09:57:01,979 INFO L140 encePairwiseOnDemand]: 420/423 looper letters, 22 selfloop transitions, 2 changer transitions 0/537 dead transitions. [2024-10-13 09:57:01,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 537 transitions, 2123 flow [2024-10-13 09:57:01,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:57:01,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:57:01,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1180 transitions. [2024-10-13 09:57:01,982 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.929866036249015 [2024-10-13 09:57:01,982 INFO L175 Difference]: Start difference. First operand has 506 places, 529 transitions, 2059 flow. Second operand 3 states and 1180 transitions. [2024-10-13 09:57:01,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 537 transitions, 2123 flow [2024-10-13 09:57:02,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 503 places, 537 transitions, 2113 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:57:02,008 INFO L231 Difference]: Finished difference. Result has 504 places, 529 transitions, 2057 flow [2024-10-13 09:57:02,009 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=2049, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2057, PETRI_PLACES=504, PETRI_TRANSITIONS=529} [2024-10-13 09:57:02,009 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, 105 predicate places. [2024-10-13 09:57:02,009 INFO L471 AbstractCegarLoop]: Abstraction has has 504 places, 529 transitions, 2057 flow [2024-10-13 09:57:02,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 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) [2024-10-13 09:57:02,010 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:57:02,011 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:57:02,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 09:57:02,012 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-10-13 09:57:02,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:57:02,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1852046332, now seen corresponding path program 1 times [2024-10-13 09:57:02,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:57:02,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907660938] [2024-10-13 09:57:02,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:57:02,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:57:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:57:10,425 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-13 09:57:10,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:57:10,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907660938] [2024-10-13 09:57:10,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907660938] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:57:10,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808071034] [2024-10-13 09:57:10,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:57:10,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:57:10,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:57:10,429 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:57:10,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 09:57:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:57:13,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 11553 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-13 09:57:13,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:57:14,637 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-13 09:57:14,638 INFO L311 TraceCheckSpWp]: Computing backward predicates...