./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 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:12:50,674 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:12:50,764 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:12:50,784 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:12:50,785 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:12:50,814 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:12:50,814 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:12:50,815 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:12:50,815 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:12:50,816 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:12:50,817 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:12:50,818 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:12:50,818 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:12:50,820 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:12:50,820 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:12:50,820 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:12:50,821 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:12:50,821 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:12:50,821 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:12:50,821 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:12:50,822 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:12:50,826 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:12:50,826 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:12:50,826 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:12:50,826 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:12:50,827 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:12:50,827 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:12:50,827 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:12:50,827 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:12:50,828 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:12:50,828 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:12:50,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:12:50,828 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:12:50,829 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:12:50,829 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:12:50,830 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:12:50,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:12:50,831 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:12:50,831 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:12:50,831 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:12:50,831 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:12:50,832 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 [2024-10-11 17:12:51,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:12:51,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:12:51,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:12:51,081 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:12:51,081 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:12:51,082 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-10-11 17:12:52,572 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:12:52,848 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:12:52,848 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-10-11 17:12:52,871 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e89bf8061/0e68a1a9bdbd43b292a8f8eee44bd9d8/FLAG0d03e5554 [2024-10-11 17:12:52,884 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e89bf8061/0e68a1a9bdbd43b292a8f8eee44bd9d8 [2024-10-11 17:12:52,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:12:52,888 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:12:52,891 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:12:52,891 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:12:52,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:12:52,897 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:12:52" (1/1) ... [2024-10-11 17:12:52,898 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27398bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:52, skipping insertion in model container [2024-10-11 17:12:52,899 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:12:52" (1/1) ... [2024-10-11 17:12:52,947 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:12:53,412 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:12:53,414 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:12:53,415 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:12:53,416 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:12:53,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:12:53,493 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:12:53,535 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:12:53,536 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:12:53,538 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:12:53,538 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:12:53,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:12:53,634 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:12:53,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53 WrapperNode [2024-10-11 17:12:53,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:12:53,636 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:12:53,636 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:12:53,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:12:53,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:53,676 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:53,728 INFO L138 Inliner]: procedures = 279, calls = 56, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 378 [2024-10-11 17:12:53,729 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:12:53,730 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:12:53,730 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:12:53,730 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:12:53,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:53,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:53,746 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:53,747 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:53,810 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:53,816 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:53,823 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:53,826 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:53,838 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:12:53,855 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:12:53,855 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:12:53,855 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:12:53,856 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:53,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:12:53,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:12:53,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:12:53,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:12:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 17:12:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-11 17:12:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 17:12:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:12:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:12:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:12:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:12:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 17:12:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:12:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-11 17:12:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 17:12:53,964 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 17:12:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 17:12:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:12:53,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:12:53,966 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:12:54,135 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:12:54,138 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:12:54,721 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:12:54,722 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:12:54,757 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:12:54,757 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-11 17:12:54,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:12:54 BoogieIcfgContainer [2024-10-11 17:12:54,758 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:12:54,759 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:12:54,759 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:12:54,764 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:12:54,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:12:52" (1/3) ... [2024-10-11 17:12:54,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ecbf23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:12:54, skipping insertion in model container [2024-10-11 17:12:54,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (2/3) ... [2024-10-11 17:12:54,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ecbf23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:12:54, skipping insertion in model container [2024-10-11 17:12:54,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:12:54" (3/3) ... [2024-10-11 17:12:54,767 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2024-10-11 17:12:54,783 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:12:54,784 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2024-10-11 17:12:54,784 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:12:54,885 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-11 17:12:54,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 399 places, 423 transitions, 853 flow [2024-10-11 17:12:55,102 INFO L124 PetriNetUnfolderBase]: 29/455 cut-off events. [2024-10-11 17:12:55,103 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:12:55,115 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. [2024-10-11 17:12:55,115 INFO L82 GeneralOperation]: Start removeDead. Operand has 399 places, 423 transitions, 853 flow [2024-10-11 17:12:55,128 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 399 places, 423 transitions, 853 flow [2024-10-11 17:12:55,140 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:12:55,148 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;@7863fee8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:12:55,148 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-10-11 17:12:55,158 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:12:55,159 INFO L124 PetriNetUnfolderBase]: 1/43 cut-off events. [2024-10-11 17:12:55,159 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:12:55,159 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:55,160 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] [2024-10-11 17:12:55,161 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)] === [2024-10-11 17:12:55,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:55,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1133209304, now seen corresponding path program 1 times [2024-10-11 17:12:55,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:55,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187522871] [2024-10-11 17:12:55,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:55,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:56,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:12:56,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:12:56,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187522871] [2024-10-11 17:12:56,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187522871] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:12:56,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:12:56,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:12:56,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879244356] [2024-10-11 17:12:56,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:12:56,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:12:56,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:12:56,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:12:56,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:12:56,661 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 423 [2024-10-11 17:12:56,668 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) [2024-10-11 17:12:56,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:12:56,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 423 [2024-10-11 17:12:56,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:12:57,162 INFO L124 PetriNetUnfolderBase]: 319/1615 cut-off events. [2024-10-11 17:12:57,162 INFO L125 PetriNetUnfolderBase]: For 15/23 co-relation queries the response was YES. [2024-10-11 17:12:57,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2321 conditions, 1615 events. 319/1615 cut-off events. For 15/23 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. [2024-10-11 17:12:57,178 INFO L140 encePairwiseOnDemand]: 390/423 looper letters, 96 selfloop transitions, 10 changer transitions 2/398 dead transitions. [2024-10-11 17:12:57,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 398 transitions, 1015 flow [2024-10-11 17:12:57,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:12:57,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:12:57,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1887 transitions. [2024-10-11 17:12:57,202 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7434988179669031 [2024-10-11 17:12:57,204 INFO L175 Difference]: Start difference. First operand has 399 places, 423 transitions, 853 flow. Second operand 6 states and 1887 transitions. [2024-10-11 17:12:57,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 398 transitions, 1015 flow [2024-10-11 17:12:57,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 398 transitions, 1015 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:12:57,220 INFO L231 Difference]: Finished difference. Result has 400 places, 396 transitions, 819 flow [2024-10-11 17:12:57,222 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} [2024-10-11 17:12:57,226 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, 1 predicate places. [2024-10-11 17:12:57,226 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 396 transitions, 819 flow [2024-10-11 17:12:57,227 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) [2024-10-11 17:12:57,227 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:57,228 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] [2024-10-11 17:12:57,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:12:57,228 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)] === [2024-10-11 17:12:57,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:57,229 INFO L85 PathProgramCache]: Analyzing trace with hash -131650274, now seen corresponding path program 1 times [2024-10-11 17:12:57,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:57,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413376516] [2024-10-11 17:12:57,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:57,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:57,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:57,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:12:57,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:12:57,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413376516] [2024-10-11 17:12:57,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413376516] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:12:57,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:12:57,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:12:57,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571187] [2024-10-11 17:12:57,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:12:57,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:12:57,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:12:57,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:12:57,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:12:58,227 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 423 [2024-10-11 17:12:58,229 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) [2024-10-11 17:12:58,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:12:58,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 423 [2024-10-11 17:12:58,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:12:58,470 INFO L124 PetriNetUnfolderBase]: 319/1611 cut-off events. [2024-10-11 17:12:58,471 INFO L125 PetriNetUnfolderBase]: For 15/23 co-relation queries the response was YES. [2024-10-11 17:12:58,473 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. [2024-10-11 17:12:58,478 INFO L140 encePairwiseOnDemand]: 411/423 looper letters, 96 selfloop transitions, 10 changer transitions 0/394 dead transitions. [2024-10-11 17:12:58,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 394 transitions, 1027 flow [2024-10-11 17:12:58,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:12:58,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:12:58,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1866 transitions. [2024-10-11 17:12:58,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.735224586288416 [2024-10-11 17:12:58,482 INFO L175 Difference]: Start difference. First operand has 400 places, 396 transitions, 819 flow. Second operand 6 states and 1866 transitions. [2024-10-11 17:12:58,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 394 transitions, 1027 flow [2024-10-11 17:12:58,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 394 transitions, 1007 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:12:58,489 INFO L231 Difference]: Finished difference. Result has 396 places, 394 transitions, 815 flow [2024-10-11 17:12:58,490 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} [2024-10-11 17:12:58,491 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -3 predicate places. [2024-10-11 17:12:58,491 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 394 transitions, 815 flow [2024-10-11 17:12:58,492 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) [2024-10-11 17:12:58,492 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:58,493 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] [2024-10-11 17:12:58,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:12:58,493 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)] === [2024-10-11 17:12:58,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:58,494 INFO L85 PathProgramCache]: Analyzing trace with hash -861148191, now seen corresponding path program 1 times [2024-10-11 17:12:58,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:58,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221292556] [2024-10-11 17:12:58,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:58,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:58,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:12:58,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:12:58,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221292556] [2024-10-11 17:12:58,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221292556] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:12:58,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:12:58,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:12:58,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670162907] [2024-10-11 17:12:58,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:12:58,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:12:58,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:12:58,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:12:58,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:12:58,587 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 423 [2024-10-11 17:12:58,589 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) [2024-10-11 17:12:58,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:12:58,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 423 [2024-10-11 17:12:58,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:12:58,674 INFO L124 PetriNetUnfolderBase]: 15/572 cut-off events. [2024-10-11 17:12:58,675 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2024-10-11 17:12:58,676 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. [2024-10-11 17:12:58,678 INFO L140 encePairwiseOnDemand]: 420/423 looper letters, 15 selfloop transitions, 2 changer transitions 0/395 dead transitions. [2024-10-11 17:12:58,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 395 transitions, 851 flow [2024-10-11 17:12:58,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:12:58,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:12:58,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1173 transitions. [2024-10-11 17:12:58,681 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9243498817966903 [2024-10-11 17:12:58,681 INFO L175 Difference]: Start difference. First operand has 396 places, 394 transitions, 815 flow. Second operand 3 states and 1173 transitions. [2024-10-11 17:12:58,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 395 transitions, 851 flow [2024-10-11 17:12:58,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 395 transitions, 831 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:12:58,691 INFO L231 Difference]: Finished difference. Result has 394 places, 395 transitions, 807 flow [2024-10-11 17:12:58,692 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} [2024-10-11 17:12:58,693 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -5 predicate places. [2024-10-11 17:12:58,695 INFO L471 AbstractCegarLoop]: Abstraction has has 394 places, 395 transitions, 807 flow [2024-10-11 17:12:58,696 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) [2024-10-11 17:12:58,696 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:58,696 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] [2024-10-11 17:12:58,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:12:58,697 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)] === [2024-10-11 17:12:58,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:58,697 INFO L85 PathProgramCache]: Analyzing trace with hash 2092060128, now seen corresponding path program 1 times [2024-10-11 17:12:58,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:58,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061159492] [2024-10-11 17:12:58,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:58,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:59,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:12:59,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:12:59,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061159492] [2024-10-11 17:12:59,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061159492] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:12:59,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:12:59,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:12:59,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459195351] [2024-10-11 17:12:59,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:12:59,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:12:59,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:12:59,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:12:59,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:12:59,490 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 423 [2024-10-11 17:12:59,492 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) [2024-10-11 17:12:59,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:12:59,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 423 [2024-10-11 17:12:59,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:12:59,741 INFO L124 PetriNetUnfolderBase]: 320/1733 cut-off events. [2024-10-11 17:12:59,741 INFO L125 PetriNetUnfolderBase]: For 16/24 co-relation queries the response was YES. [2024-10-11 17:12:59,743 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. [2024-10-11 17:12:59,747 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 103 selfloop transitions, 5 changer transitions 0/394 dead transitions. [2024-10-11 17:12:59,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 394 transitions, 1021 flow [2024-10-11 17:12:59,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:12:59,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:12:59,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1861 transitions. [2024-10-11 17:12:59,752 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7332545311268716 [2024-10-11 17:12:59,752 INFO L175 Difference]: Start difference. First operand has 394 places, 395 transitions, 807 flow. Second operand 6 states and 1861 transitions. [2024-10-11 17:12:59,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 394 transitions, 1021 flow [2024-10-11 17:12:59,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 394 transitions, 1019 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:12:59,758 INFO L231 Difference]: Finished difference. Result has 397 places, 394 transitions, 813 flow [2024-10-11 17:12:59,759 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} [2024-10-11 17:12:59,760 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -2 predicate places. [2024-10-11 17:12:59,760 INFO L471 AbstractCegarLoop]: Abstraction has has 397 places, 394 transitions, 813 flow [2024-10-11 17:12:59,761 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) [2024-10-11 17:12:59,761 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:59,762 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] [2024-10-11 17:12:59,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:12:59,762 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)] === [2024-10-11 17:12:59,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:59,763 INFO L85 PathProgramCache]: Analyzing trace with hash 762425590, now seen corresponding path program 1 times [2024-10-11 17:12:59,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:59,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437695729] [2024-10-11 17:12:59,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:59,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:59,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:12:59,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:12:59,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437695729] [2024-10-11 17:12:59,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437695729] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:12:59,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:12:59,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:12:59,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118900377] [2024-10-11 17:12:59,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:12:59,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:12:59,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:12:59,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:12:59,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:12:59,835 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 423 [2024-10-11 17:12:59,837 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) [2024-10-11 17:12:59,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:12:59,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 423 [2024-10-11 17:12:59,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:12:59,946 INFO L124 PetriNetUnfolderBase]: 15/758 cut-off events. [2024-10-11 17:12:59,947 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2024-10-11 17:12:59,948 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. [2024-10-11 17:12:59,950 INFO L140 encePairwiseOnDemand]: 420/423 looper letters, 15 selfloop transitions, 2 changer transitions 0/395 dead transitions. [2024-10-11 17:12:59,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 395 transitions, 849 flow [2024-10-11 17:12:59,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:12:59,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:12:59,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1173 transitions. [2024-10-11 17:12:59,952 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9243498817966903 [2024-10-11 17:12:59,953 INFO L175 Difference]: Start difference. First operand has 397 places, 394 transitions, 813 flow. Second operand 3 states and 1173 transitions. [2024-10-11 17:12:59,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 395 transitions, 849 flow [2024-10-11 17:12:59,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 395 transitions, 839 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:12:59,961 INFO L231 Difference]: Finished difference. Result has 395 places, 395 transitions, 815 flow [2024-10-11 17:12:59,962 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} [2024-10-11 17:12:59,962 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -4 predicate places. [2024-10-11 17:12:59,962 INFO L471 AbstractCegarLoop]: Abstraction has has 395 places, 395 transitions, 815 flow [2024-10-11 17:12:59,965 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) [2024-10-11 17:12:59,965 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:59,965 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:12:59,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 17:12:59,965 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)] === [2024-10-11 17:12:59,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:59,966 INFO L85 PathProgramCache]: Analyzing trace with hash 591731304, now seen corresponding path program 1 times [2024-10-11 17:12:59,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:59,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252969723] [2024-10-11 17:12:59,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:59,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:00,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:00,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:00,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252969723] [2024-10-11 17:13:00,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252969723] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:13:00,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:13:00,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:13:00,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095962030] [2024-10-11 17:13:00,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:13:00,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:13:00,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:00,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:13:00,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:13:01,175 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 423 [2024-10-11 17:13:01,177 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) [2024-10-11 17:13:01,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:01,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 423 [2024-10-11 17:13:01,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:01,508 INFO L124 PetriNetUnfolderBase]: 83/1072 cut-off events. [2024-10-11 17:13:01,508 INFO L125 PetriNetUnfolderBase]: For 10/14 co-relation queries the response was YES. [2024-10-11 17:13:01,511 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. [2024-10-11 17:13:01,514 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 66 selfloop transitions, 5 changer transitions 0/394 dead transitions. [2024-10-11 17:13:01,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 394 transitions, 955 flow [2024-10-11 17:13:01,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:13:01,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:13:01,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2046 transitions. [2024-10-11 17:13:01,519 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.806146572104019 [2024-10-11 17:13:01,519 INFO L175 Difference]: Start difference. First operand has 395 places, 395 transitions, 815 flow. Second operand 6 states and 2046 transitions. [2024-10-11 17:13:01,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 394 transitions, 955 flow [2024-10-11 17:13:01,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 394 transitions, 953 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:13:01,527 INFO L231 Difference]: Finished difference. Result has 398 places, 394 transitions, 821 flow [2024-10-11 17:13:01,528 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} [2024-10-11 17:13:01,530 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -1 predicate places. [2024-10-11 17:13:01,530 INFO L471 AbstractCegarLoop]: Abstraction has has 398 places, 394 transitions, 821 flow [2024-10-11 17:13:01,532 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) [2024-10-11 17:13:01,532 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:01,532 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] [2024-10-11 17:13:01,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 17:13:01,533 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)] === [2024-10-11 17:13:01,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:01,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1241387691, now seen corresponding path program 1 times [2024-10-11 17:13:01,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:01,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064517682] [2024-10-11 17:13:01,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:01,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:02,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:02,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:02,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064517682] [2024-10-11 17:13:02,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064517682] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:13:02,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:13:02,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:13:02,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441245396] [2024-10-11 17:13:02,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:13:02,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:13:02,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:02,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:13:02,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:13:02,459 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 423 [2024-10-11 17:13:02,461 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) [2024-10-11 17:13:02,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:02,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 423 [2024-10-11 17:13:02,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:02,892 INFO L124 PetriNetUnfolderBase]: 320/1913 cut-off events. [2024-10-11 17:13:02,892 INFO L125 PetriNetUnfolderBase]: For 19/27 co-relation queries the response was YES. [2024-10-11 17:13:02,894 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. [2024-10-11 17:13:02,899 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 103 selfloop transitions, 5 changer transitions 0/393 dead transitions. [2024-10-11 17:13:02,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 393 transitions, 1035 flow [2024-10-11 17:13:02,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:13:02,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:13:02,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1861 transitions. [2024-10-11 17:13:02,904 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7332545311268716 [2024-10-11 17:13:02,904 INFO L175 Difference]: Start difference. First operand has 398 places, 394 transitions, 821 flow. Second operand 6 states and 1861 transitions. [2024-10-11 17:13:02,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 393 transitions, 1035 flow [2024-10-11 17:13:02,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 393 transitions, 1025 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:13:02,911 INFO L231 Difference]: Finished difference. Result has 397 places, 393 transitions, 819 flow [2024-10-11 17:13:02,912 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} [2024-10-11 17:13:02,912 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -2 predicate places. [2024-10-11 17:13:02,913 INFO L471 AbstractCegarLoop]: Abstraction has has 397 places, 393 transitions, 819 flow [2024-10-11 17:13:02,914 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) [2024-10-11 17:13:02,914 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:02,914 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] [2024-10-11 17:13:02,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:13:02,915 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)] === [2024-10-11 17:13:02,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:02,915 INFO L85 PathProgramCache]: Analyzing trace with hash -813380364, now seen corresponding path program 1 times [2024-10-11 17:13:02,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:02,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29335826] [2024-10-11 17:13:02,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:02,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:03,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:03,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:03,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29335826] [2024-10-11 17:13:03,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29335826] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:13:03,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:13:03,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:13:03,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644450047] [2024-10-11 17:13:03,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:13:03,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:13:03,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:03,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:13:03,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:13:03,827 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 423 [2024-10-11 17:13:03,829 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) [2024-10-11 17:13:03,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:03,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 423 [2024-10-11 17:13:03,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:04,083 INFO L124 PetriNetUnfolderBase]: 320/1909 cut-off events. [2024-10-11 17:13:04,083 INFO L125 PetriNetUnfolderBase]: For 19/27 co-relation queries the response was YES. [2024-10-11 17:13:04,086 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. [2024-10-11 17:13:04,093 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 99 selfloop transitions, 5 changer transitions 0/392 dead transitions. [2024-10-11 17:13:04,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 392 transitions, 1025 flow [2024-10-11 17:13:04,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:13:04,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:13:04,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1881 transitions. [2024-10-11 17:13:04,101 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7411347517730497 [2024-10-11 17:13:04,101 INFO L175 Difference]: Start difference. First operand has 397 places, 393 transitions, 819 flow. Second operand 6 states and 1881 transitions. [2024-10-11 17:13:04,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 392 transitions, 1025 flow [2024-10-11 17:13:04,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 392 transitions, 1015 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:13:04,109 INFO L231 Difference]: Finished difference. Result has 396 places, 392 transitions, 817 flow [2024-10-11 17:13:04,110 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} [2024-10-11 17:13:04,111 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -3 predicate places. [2024-10-11 17:13:04,111 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 392 transitions, 817 flow [2024-10-11 17:13:04,112 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) [2024-10-11 17:13:04,113 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:04,113 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] [2024-10-11 17:13:04,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:13:04,114 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)] === [2024-10-11 17:13:04,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:04,114 INFO L85 PathProgramCache]: Analyzing trace with hash 747071657, now seen corresponding path program 1 times [2024-10-11 17:13:04,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:04,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800446233] [2024-10-11 17:13:04,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:04,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:04,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:04,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:04,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800446233] [2024-10-11 17:13:04,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800446233] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:13:04,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:13:04,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:13:04,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589254378] [2024-10-11 17:13:04,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:13:04,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:13:04,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:04,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:13:04,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:13:04,940 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 423 [2024-10-11 17:13:04,943 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) [2024-10-11 17:13:04,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:04,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 423 [2024-10-11 17:13:04,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:05,414 INFO L124 PetriNetUnfolderBase]: 320/1905 cut-off events. [2024-10-11 17:13:05,414 INFO L125 PetriNetUnfolderBase]: For 15/23 co-relation queries the response was YES. [2024-10-11 17:13:05,417 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. [2024-10-11 17:13:05,424 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 99 selfloop transitions, 5 changer transitions 0/391 dead transitions. [2024-10-11 17:13:05,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 391 transitions, 1023 flow [2024-10-11 17:13:05,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:13:05,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:13:05,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1881 transitions. [2024-10-11 17:13:05,428 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7411347517730497 [2024-10-11 17:13:05,429 INFO L175 Difference]: Start difference. First operand has 396 places, 392 transitions, 817 flow. Second operand 6 states and 1881 transitions. [2024-10-11 17:13:05,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 391 transitions, 1023 flow [2024-10-11 17:13:05,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 391 transitions, 1013 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:13:05,436 INFO L231 Difference]: Finished difference. Result has 395 places, 391 transitions, 815 flow [2024-10-11 17:13:05,436 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} [2024-10-11 17:13:05,437 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -4 predicate places. [2024-10-11 17:13:05,437 INFO L471 AbstractCegarLoop]: Abstraction has has 395 places, 391 transitions, 815 flow [2024-10-11 17:13:05,439 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) [2024-10-11 17:13:05,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:05,439 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] [2024-10-11 17:13:05,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 17:13:05,439 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)] === [2024-10-11 17:13:05,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:05,440 INFO L85 PathProgramCache]: Analyzing trace with hash 968324889, now seen corresponding path program 1 times [2024-10-11 17:13:05,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:05,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557409363] [2024-10-11 17:13:05,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:05,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:05,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:05,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:05,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557409363] [2024-10-11 17:13:05,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557409363] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:13:05,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:13:05,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:13:05,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080828585] [2024-10-11 17:13:05,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:13:05,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:13:05,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:05,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:13:05,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:13:06,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 423 [2024-10-11 17:13:06,283 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) [2024-10-11 17:13:06,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:06,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 423 [2024-10-11 17:13:06,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:06,666 INFO L124 PetriNetUnfolderBase]: 320/1901 cut-off events. [2024-10-11 17:13:06,666 INFO L125 PetriNetUnfolderBase]: For 19/27 co-relation queries the response was YES. [2024-10-11 17:13:06,669 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. [2024-10-11 17:13:06,673 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 104 selfloop transitions, 5 changer transitions 0/390 dead transitions. [2024-10-11 17:13:06,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 390 transitions, 1031 flow [2024-10-11 17:13:06,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:13:06,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:13:06,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1856 transitions. [2024-10-11 17:13:06,678 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.731284475965327 [2024-10-11 17:13:06,678 INFO L175 Difference]: Start difference. First operand has 395 places, 391 transitions, 815 flow. Second operand 6 states and 1856 transitions. [2024-10-11 17:13:06,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 390 transitions, 1031 flow [2024-10-11 17:13:06,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 390 transitions, 1021 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:13:06,687 INFO L231 Difference]: Finished difference. Result has 394 places, 390 transitions, 813 flow [2024-10-11 17:13:06,688 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} [2024-10-11 17:13:06,688 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -5 predicate places. [2024-10-11 17:13:06,689 INFO L471 AbstractCegarLoop]: Abstraction has has 394 places, 390 transitions, 813 flow [2024-10-11 17:13:06,690 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) [2024-10-11 17:13:06,691 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:06,691 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] [2024-10-11 17:13:06,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 17:13:06,691 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)] === [2024-10-11 17:13:06,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:06,692 INFO L85 PathProgramCache]: Analyzing trace with hash -968958471, now seen corresponding path program 1 times [2024-10-11 17:13:06,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:06,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003034857] [2024-10-11 17:13:06,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:06,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:06,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:06,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:06,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003034857] [2024-10-11 17:13:06,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003034857] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:13:06,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786250742] [2024-10-11 17:13:06,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:06,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:13:06,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:13:06,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:13:06,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 17:13:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:07,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:13:07,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:13:07,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:07,292 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:13:07,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:07,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786250742] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:13:07,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:13:07,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 17:13:07,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989911797] [2024-10-11 17:13:07,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:13:07,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:13:07,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:07,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:13:07,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 17:13:07,463 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 423 [2024-10-11 17:13:07,467 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) [2024-10-11 17:13:07,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:07,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 423 [2024-10-11 17:13:07,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:07,682 INFO L124 PetriNetUnfolderBase]: 15/922 cut-off events. [2024-10-11 17:13:07,682 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2024-10-11 17:13:07,683 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. [2024-10-11 17:13:07,686 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 19 selfloop transitions, 9 changer transitions 0/398 dead transitions. [2024-10-11 17:13:07,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 398 transitions, 887 flow [2024-10-11 17:13:07,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:13:07,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 17:13:07,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3468 transitions. [2024-10-11 17:13:07,692 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9109535066981875 [2024-10-11 17:13:07,693 INFO L175 Difference]: Start difference. First operand has 394 places, 390 transitions, 813 flow. Second operand 9 states and 3468 transitions. [2024-10-11 17:13:07,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 398 transitions, 887 flow [2024-10-11 17:13:07,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 398 transitions, 877 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:13:07,699 INFO L231 Difference]: Finished difference. Result has 400 places, 396 transitions, 853 flow [2024-10-11 17:13:07,700 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} [2024-10-11 17:13:07,701 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, 1 predicate places. [2024-10-11 17:13:07,701 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 396 transitions, 853 flow [2024-10-11 17:13:07,702 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) [2024-10-11 17:13:07,702 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:07,703 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] [2024-10-11 17:13:07,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 17:13:07,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 17:13:07,904 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)] === [2024-10-11 17:13:07,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:07,905 INFO L85 PathProgramCache]: Analyzing trace with hash -534055233, now seen corresponding path program 2 times [2024-10-11 17:13:07,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:07,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641406665] [2024-10-11 17:13:07,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:07,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:08,300 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-10-11 17:13:08,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:08,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641406665] [2024-10-11 17:13:08,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641406665] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:13:08,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809839736] [2024-10-11 17:13:08,301 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:13:08,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:13:08,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:13:08,303 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:13:08,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 17:13:08,536 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:13:08,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:13:08,539 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 17:13:08,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:13:08,595 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 [2024-10-11 17:13:08,610 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 [2024-10-11 17:13:08,643 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:13:08,643 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 [2024-10-11 17:13:08,678 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:13:08,679 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 [2024-10-11 17:13:08,711 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-10-11 17:13:08,711 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:13:08,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809839736] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:13:08,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:13:08,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-10-11 17:13:08,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250898790] [2024-10-11 17:13:08,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:13:08,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:13:08,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:08,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:13:08,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-11 17:13:09,340 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 423 [2024-10-11 17:13:09,342 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) [2024-10-11 17:13:09,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:09,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 423 [2024-10-11 17:13:09,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:09,634 INFO L124 PetriNetUnfolderBase]: 83/1238 cut-off events. [2024-10-11 17:13:09,634 INFO L125 PetriNetUnfolderBase]: For 18/22 co-relation queries the response was YES. [2024-10-11 17:13:09,636 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. [2024-10-11 17:13:09,639 INFO L140 encePairwiseOnDemand]: 411/423 looper letters, 69 selfloop transitions, 10 changer transitions 0/394 dead transitions. [2024-10-11 17:13:09,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 394 transitions, 1007 flow [2024-10-11 17:13:09,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:13:09,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:13:09,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2001 transitions. [2024-10-11 17:13:09,644 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7884160756501182 [2024-10-11 17:13:09,644 INFO L175 Difference]: Start difference. First operand has 400 places, 396 transitions, 853 flow. Second operand 6 states and 2001 transitions. [2024-10-11 17:13:09,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 394 transitions, 1007 flow [2024-10-11 17:13:09,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 394 transitions, 1001 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-11 17:13:09,652 INFO L231 Difference]: Finished difference. Result has 402 places, 394 transitions, 863 flow [2024-10-11 17:13:09,653 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} [2024-10-11 17:13:09,653 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, 3 predicate places. [2024-10-11 17:13:09,654 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 394 transitions, 863 flow [2024-10-11 17:13:09,654 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) [2024-10-11 17:13:09,655 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:09,655 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] [2024-10-11 17:13:09,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 17:13:09,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:13:09,860 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)] === [2024-10-11 17:13:09,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:09,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1457215463, now seen corresponding path program 1 times [2024-10-11 17:13:09,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:09,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460459006] [2024-10-11 17:13:09,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:09,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:10,299 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-10-11 17:13:10,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:10,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460459006] [2024-10-11 17:13:10,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460459006] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:13:10,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160357506] [2024-10-11 17:13:10,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:10,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:13:10,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:13:10,303 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:13:10,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 17:13:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:10,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 17:13:10,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:13:11,174 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:11,175 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:13:11,530 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:11,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160357506] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:13:11,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:13:11,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-10-11 17:13:11,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761423683] [2024-10-11 17:13:11,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:13:11,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 17:13:11,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:11,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 17:13:11,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-10-11 17:13:11,650 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 423 [2024-10-11 17:13:11,655 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) [2024-10-11 17:13:11,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:11,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 423 [2024-10-11 17:13:11,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:12,968 INFO L124 PetriNetUnfolderBase]: 16/2300 cut-off events. [2024-10-11 17:13:12,968 INFO L125 PetriNetUnfolderBase]: For 81/82 co-relation queries the response was YES. [2024-10-11 17:13:12,969 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. [2024-10-11 17:13:12,973 INFO L140 encePairwiseOnDemand]: 412/423 looper letters, 51 selfloop transitions, 68 changer transitions 0/480 dead transitions. [2024-10-11 17:13:12,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 480 transitions, 1511 flow [2024-10-11 17:13:12,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-10-11 17:13:12,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-10-11 17:13:12,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 23820 transitions. [2024-10-11 17:13:13,005 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8938421704379151 [2024-10-11 17:13:13,006 INFO L175 Difference]: Start difference. First operand has 402 places, 394 transitions, 863 flow. Second operand 63 states and 23820 transitions. [2024-10-11 17:13:13,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 480 transitions, 1511 flow [2024-10-11 17:13:13,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 480 transitions, 1491 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:13:13,015 INFO L231 Difference]: Finished difference. Result has 475 places, 456 transitions, 1363 flow [2024-10-11 17:13:13,016 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} [2024-10-11 17:13:13,018 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, 76 predicate places. [2024-10-11 17:13:13,018 INFO L471 AbstractCegarLoop]: Abstraction has has 475 places, 456 transitions, 1363 flow [2024-10-11 17:13:13,020 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) [2024-10-11 17:13:13,021 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:13,022 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] [2024-10-11 17:13:13,042 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 17:13:13,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:13:13,223 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)] === [2024-10-11 17:13:13,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:13,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1406395845, now seen corresponding path program 2 times [2024-10-11 17:13:13,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:13,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349841972] [2024-10-11 17:13:13,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:13,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:16,560 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-11 17:13:16,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:16,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349841972] [2024-10-11 17:13:16,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349841972] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:13:16,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112867099] [2024-10-11 17:13:16,562 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:13:16,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:13:16,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:13:16,564 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:13:16,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 17:13:17,214 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:13:17,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:13:17,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 17:13:17,232 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:13:17,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:13:17,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-11 17:13:17,334 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:13:17,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-10-11 17:13:17,366 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:13:17,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-10-11 17:13:17,442 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8249 trivial. 0 not checked. [2024-10-11 17:13:17,442 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:13:17,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112867099] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:13:17,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:13:17,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-11 17:13:17,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354530924] [2024-10-11 17:13:17,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:13:17,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:13:17,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:17,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:13:17,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-11 17:13:18,000 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 423 [2024-10-11 17:13:18,001 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) [2024-10-11 17:13:18,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:18,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 423 [2024-10-11 17:13:18,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:19,004 INFO L124 PetriNetUnfolderBase]: 103/2704 cut-off events. [2024-10-11 17:13:19,005 INFO L125 PetriNetUnfolderBase]: For 441/446 co-relation queries the response was YES. [2024-10-11 17:13:19,007 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. [2024-10-11 17:13:19,013 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 66 selfloop transitions, 5 changer transitions 0/455 dead transitions. [2024-10-11 17:13:19,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 455 transitions, 1503 flow [2024-10-11 17:13:19,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:13:19,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:13:19,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2046 transitions. [2024-10-11 17:13:19,015 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.806146572104019 [2024-10-11 17:13:19,015 INFO L175 Difference]: Start difference. First operand has 475 places, 456 transitions, 1363 flow. Second operand 6 states and 2046 transitions. [2024-10-11 17:13:19,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 455 transitions, 1503 flow [2024-10-11 17:13:19,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 455 transitions, 1427 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-10-11 17:13:19,026 INFO L231 Difference]: Finished difference. Result has 472 places, 455 transitions, 1295 flow [2024-10-11 17:13:19,026 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} [2024-10-11 17:13:19,027 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, 73 predicate places. [2024-10-11 17:13:19,027 INFO L471 AbstractCegarLoop]: Abstraction has has 472 places, 455 transitions, 1295 flow [2024-10-11 17:13:19,028 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) [2024-10-11 17:13:19,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:19,029 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] [2024-10-11 17:13:19,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 17:13:19,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-11 17:13:19,231 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)] === [2024-10-11 17:13:19,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:19,231 INFO L85 PathProgramCache]: Analyzing trace with hash -302640020, now seen corresponding path program 1 times [2024-10-11 17:13:19,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:19,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440448625] [2024-10-11 17:13:19,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:19,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:22,477 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-11 17:13:22,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:22,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440448625] [2024-10-11 17:13:22,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440448625] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:13:22,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356235296] [2024-10-11 17:13:22,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:22,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:13:22,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:13:22,480 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:13:22,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 17:13:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:23,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 5607 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 17:13:23,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:13:24,505 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-11 17:13:24,505 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:13:25,283 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-11 17:13:25,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356235296] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:13:25,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:13:25,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-10-11 17:13:25,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352764668] [2024-10-11 17:13:25,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:13:25,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-11 17:13:25,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:25,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-11 17:13:25,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 17:13:25,336 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 423 [2024-10-11 17:13:25,343 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) [2024-10-11 17:13:25,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:25,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 423 [2024-10-11 17:13:25,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:27,641 INFO L124 PetriNetUnfolderBase]: 16/4459 cut-off events. [2024-10-11 17:13:27,641 INFO L125 PetriNetUnfolderBase]: For 3212/3213 co-relation queries the response was YES. [2024-10-11 17:13:27,645 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. [2024-10-11 17:13:27,650 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 51 selfloop transitions, 135 changer transitions 0/556 dead transitions. [2024-10-11 17:13:27,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 556 transitions, 2431 flow [2024-10-11 17:13:27,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-11 17:13:27,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-10-11 17:13:27,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 17274 transitions. [2024-10-11 17:13:27,667 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9074862096138692 [2024-10-11 17:13:27,668 INFO L175 Difference]: Start difference. First operand has 472 places, 455 transitions, 1295 flow. Second operand 45 states and 17274 transitions. [2024-10-11 17:13:27,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 556 transitions, 2431 flow [2024-10-11 17:13:27,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 556 transitions, 2421 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:13:27,682 INFO L231 Difference]: Finished difference. Result has 520 places, 530 transitions, 2159 flow [2024-10-11 17:13:27,682 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} [2024-10-11 17:13:27,683 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, 121 predicate places. [2024-10-11 17:13:27,683 INFO L471 AbstractCegarLoop]: Abstraction has has 520 places, 530 transitions, 2159 flow [2024-10-11 17:13:27,686 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) [2024-10-11 17:13:27,686 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:27,687 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] [2024-10-11 17:13:27,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 17:13:27,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-11 17:13:27,888 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)] === [2024-10-11 17:13:27,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:27,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1281212780, now seen corresponding path program 2 times [2024-10-11 17:13:27,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:27,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874132205] [2024-10-11 17:13:27,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:27,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:36,604 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-11 17:13:36,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:36,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874132205] [2024-10-11 17:13:36,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874132205] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:13:36,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652761577] [2024-10-11 17:13:36,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:13:36,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:13:36,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:13:36,606 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:13:36,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 17:13:37,915 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:13:37,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:13:37,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 17:13:37,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:13:38,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:13:38,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-11 17:13:38,065 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:13:38,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-10-11 17:13:38,106 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:13:38,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-10-11 17:13:38,150 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39241 trivial. 0 not checked. [2024-10-11 17:13:38,150 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:13:38,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652761577] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:13:38,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:13:38,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2024-10-11 17:13:38,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358968579] [2024-10-11 17:13:38,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:13:38,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:13:38,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:38,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:13:38,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2024-10-11 17:13:38,615 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 423 [2024-10-11 17:13:38,617 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) [2024-10-11 17:13:38,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:38,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 423 [2024-10-11 17:13:38,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:41,798 INFO L124 PetriNetUnfolderBase]: 360/5770 cut-off events. [2024-10-11 17:13:41,798 INFO L125 PetriNetUnfolderBase]: For 1234/1243 co-relation queries the response was YES. [2024-10-11 17:13:41,808 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. [2024-10-11 17:13:41,816 INFO L140 encePairwiseOnDemand]: 417/423 looper letters, 104 selfloop transitions, 5 changer transitions 0/529 dead transitions. [2024-10-11 17:13:41,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 529 transitions, 2375 flow [2024-10-11 17:13:41,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:13:41,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:13:41,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1856 transitions. [2024-10-11 17:13:41,818 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.731284475965327 [2024-10-11 17:13:41,818 INFO L175 Difference]: Start difference. First operand has 520 places, 530 transitions, 2159 flow. Second operand 6 states and 1856 transitions. [2024-10-11 17:13:41,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 524 places, 529 transitions, 2375 flow [2024-10-11 17:13:41,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 506 places, 529 transitions, 2267 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-10-11 17:13:41,836 INFO L231 Difference]: Finished difference. Result has 506 places, 529 transitions, 2059 flow [2024-10-11 17:13:41,836 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} [2024-10-11 17:13:41,837 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, 107 predicate places. [2024-10-11 17:13:41,837 INFO L471 AbstractCegarLoop]: Abstraction has has 506 places, 529 transitions, 2059 flow [2024-10-11 17:13:41,838 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) [2024-10-11 17:13:41,838 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:41,839 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] [2024-10-11 17:13:41,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-11 17:13:42,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-11 17:13:42,040 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)] === [2024-10-11 17:13:42,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:42,040 INFO L85 PathProgramCache]: Analyzing trace with hash -126437029, now seen corresponding path program 1 times [2024-10-11 17:13:42,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:42,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454372065] [2024-10-11 17:13:42,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:42,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:44,999 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39241 trivial. 0 not checked. [2024-10-11 17:13:44,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:44,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454372065] [2024-10-11 17:13:45,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454372065] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:13:45,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:13:45,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:13:45,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830084395] [2024-10-11 17:13:45,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:13:45,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:13:45,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:45,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:13:45,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:13:45,023 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 423 [2024-10-11 17:13:45,024 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) [2024-10-11 17:13:45,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:45,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 423 [2024-10-11 17:13:45,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:46,812 INFO L124 PetriNetUnfolderBase]: 39/4727 cut-off events. [2024-10-11 17:13:46,812 INFO L125 PetriNetUnfolderBase]: For 1199/1203 co-relation queries the response was YES. [2024-10-11 17:13:46,822 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. [2024-10-11 17:13:46,830 INFO L140 encePairwiseOnDemand]: 420/423 looper letters, 22 selfloop transitions, 2 changer transitions 0/537 dead transitions. [2024-10-11 17:13:46,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 537 transitions, 2123 flow [2024-10-11 17:13:46,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:13:46,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:13:46,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1180 transitions. [2024-10-11 17:13:46,832 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.929866036249015 [2024-10-11 17:13:46,832 INFO L175 Difference]: Start difference. First operand has 506 places, 529 transitions, 2059 flow. Second operand 3 states and 1180 transitions. [2024-10-11 17:13:46,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 537 transitions, 2123 flow [2024-10-11 17:13:46,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 503 places, 537 transitions, 2113 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:13:46,852 INFO L231 Difference]: Finished difference. Result has 504 places, 529 transitions, 2057 flow [2024-10-11 17:13:46,853 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} [2024-10-11 17:13:46,853 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, 105 predicate places. [2024-10-11 17:13:46,853 INFO L471 AbstractCegarLoop]: Abstraction has has 504 places, 529 transitions, 2057 flow [2024-10-11 17:13:46,854 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) [2024-10-11 17:13:46,854 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:46,855 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] [2024-10-11 17:13:46,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 17:13:46,855 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)] === [2024-10-11 17:13:46,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:46,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1852046332, now seen corresponding path program 1 times [2024-10-11 17:13:46,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:46,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306410268] [2024-10-11 17:13:46,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:46,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:56,545 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-11 17:13:56,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:56,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306410268] [2024-10-11 17:13:56,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306410268] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:13:56,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531798612] [2024-10-11 17:13:56,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:56,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:13:56,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:13:56,548 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:13:56,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 17:13:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:59,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 11553 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-11 17:13:59,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:14:00,761 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-11 17:14:00,761 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:14:02,588 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-11 17:14:02,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531798612] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:14:02,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:14:02,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-10-11 17:14:02,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652577509] [2024-10-11 17:14:02,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:14:02,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-10-11 17:14:02,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:14:02,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-10-11 17:14:02,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-10-11 17:14:02,669 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 423 [2024-10-11 17:14:02,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 529 transitions, 2057 flow. Second operand has 63 states, 63 states have (on average 384.0952380952381) internal successors, (24198), 63 states have internal predecessors, (24198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:14:02,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:14:02,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 423 [2024-10-11 17:14:02,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand