./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 15:40:07,561 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 15:40:07,633 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-07 15:40:07,642 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 15:40:07,642 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 15:40:07,674 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 15:40:07,675 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 15:40:07,676 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 15:40:07,677 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 15:40:07,677 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 15:40:07,678 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 15:40:07,678 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 15:40:07,678 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 15:40:07,678 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 15:40:07,679 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 15:40:07,679 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 15:40:07,679 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 15:40:07,679 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 15:40:07,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 15:40:07,680 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 15:40:07,680 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 15:40:07,680 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 15:40:07,680 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-07 15:40:07,680 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 15:40:07,680 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 15:40:07,680 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 15:40:07,680 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 15:40:07,680 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 15:40:07,681 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 15:40:07,681 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 15:40:07,681 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 15:40:07,681 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:40:07,681 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 15:40:07,681 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 15:40:07,682 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 15:40:07,682 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 15:40:07,682 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 15:40:07,683 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 15:40:07,683 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 15:40:07,683 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 15:40:07,683 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 15:40:07,683 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe [2024-11-07 15:40:08,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 15:40:08,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 15:40:08,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 15:40:08,046 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 15:40:08,048 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 15:40:08,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2024-11-07 15:40:09,345 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 15:40:09,632 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 15:40:09,633 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2024-11-07 15:40:09,651 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3c8dc70c0/6c26c0b6c60c4ecdbd8e2d91cb8d5b20/FLAGb6ae60cb5 [2024-11-07 15:40:09,921 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3c8dc70c0/6c26c0b6c60c4ecdbd8e2d91cb8d5b20 [2024-11-07 15:40:09,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 15:40:09,924 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 15:40:09,925 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 15:40:09,925 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 15:40:09,928 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 15:40:09,928 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:40:09" (1/1) ... [2024-11-07 15:40:09,929 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f26636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:09, skipping insertion in model container [2024-11-07 15:40:09,929 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:40:09" (1/1) ... [2024-11-07 15:40:09,956 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 15:40:10,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:40:10,312 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 15:40:10,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:40:10,433 INFO L204 MainTranslator]: Completed translation [2024-11-07 15:40:10,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:10 WrapperNode [2024-11-07 15:40:10,433 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 15:40:10,434 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 15:40:10,434 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 15:40:10,434 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 15:40:10,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:10" (1/1) ... [2024-11-07 15:40:10,458 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:10" (1/1) ... [2024-11-07 15:40:10,503 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 348 [2024-11-07 15:40:10,504 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 15:40:10,504 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 15:40:10,505 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 15:40:10,505 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 15:40:10,511 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:10" (1/1) ... [2024-11-07 15:40:10,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:10" (1/1) ... [2024-11-07 15:40:10,518 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:10" (1/1) ... [2024-11-07 15:40:10,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:10" (1/1) ... [2024-11-07 15:40:10,550 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:10" (1/1) ... [2024-11-07 15:40:10,558 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:10" (1/1) ... [2024-11-07 15:40:10,563 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:10" (1/1) ... [2024-11-07 15:40:10,564 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:10" (1/1) ... [2024-11-07 15:40:10,569 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 15:40:10,569 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 15:40:10,569 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 15:40:10,569 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 15:40:10,570 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:10" (1/1) ... [2024-11-07 15:40:10,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:40:10,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:10,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 15:40:10,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 15:40:10,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 15:40:10,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 15:40:10,626 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 15:40:10,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-07 15:40:10,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-07 15:40:10,626 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 15:40:10,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 15:40:10,626 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-07 15:40:10,626 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-07 15:40:10,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-07 15:40:10,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 15:40:10,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 15:40:10,628 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 15:40:10,767 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 15:40:10,768 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 15:40:11,348 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 15:40:11,351 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 15:40:11,399 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 15:40:11,401 INFO L316 CfgBuilder]: Removed 23 assume(true) statements. [2024-11-07 15:40:11,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:40:11 BoogieIcfgContainer [2024-11-07 15:40:11,402 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 15:40:11,404 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 15:40:11,404 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 15:40:11,408 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 15:40:11,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:40:09" (1/3) ... [2024-11-07 15:40:11,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3337a172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:40:11, skipping insertion in model container [2024-11-07 15:40:11,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:40:10" (2/3) ... [2024-11-07 15:40:11,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3337a172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:40:11, skipping insertion in model container [2024-11-07 15:40:11,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:40:11" (3/3) ... [2024-11-07 15:40:11,411 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_77-tricky_address4_racing.i [2024-11-07 15:40:11,425 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 15:40:11,425 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-07 15:40:11,425 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 15:40:11,530 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-07 15:40:11,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 324 places, 354 transitions, 715 flow [2024-11-07 15:40:11,778 INFO L124 PetriNetUnfolderBase]: 48/483 cut-off events. [2024-11-07 15:40:11,780 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 15:40:11,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 483 events. 48/483 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1659 event pairs, 0 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 248. Up to 8 conditions per place. [2024-11-07 15:40:11,798 INFO L82 GeneralOperation]: Start removeDead. Operand has 324 places, 354 transitions, 715 flow [2024-11-07 15:40:11,809 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 324 places, 354 transitions, 715 flow [2024-11-07 15:40:11,817 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:40:11,834 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;@1ea2a01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:40:11,834 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-07 15:40:11,857 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:40:11,859 INFO L124 PetriNetUnfolderBase]: 8/133 cut-off events. [2024-11-07 15:40:11,859 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:40:11,859 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:11,860 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] [2024-11-07 15:40:11,860 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-07 15:40:11,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:11,864 INFO L85 PathProgramCache]: Analyzing trace with hash 709230511, now seen corresponding path program 1 times [2024-11-07 15:40:11,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:11,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432882685] [2024-11-07 15:40:11,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:11,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:12,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:12,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:12,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432882685] [2024-11-07 15:40:12,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432882685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:12,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:40:12,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:40:12,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176916167] [2024-11-07 15:40:12,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:12,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:40:12,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:12,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:40:12,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:40:12,351 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 354 [2024-11-07 15:40:12,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 354 transitions, 715 flow. Second operand has 3 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:12,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:12,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 354 [2024-11-07 15:40:12,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:12,705 INFO L124 PetriNetUnfolderBase]: 85/1310 cut-off events. [2024-11-07 15:40:12,706 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-07 15:40:12,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1494 conditions, 1310 events. 85/1310 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8317 event pairs, 72 based on Foata normal form. 205/1399 useless extension candidates. Maximal degree in co-relation 1250. Up to 178 conditions per place. [2024-11-07 15:40:12,724 INFO L140 encePairwiseOnDemand]: 322/354 looper letters, 23 selfloop transitions, 2 changer transitions 1/322 dead transitions. [2024-11-07 15:40:12,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 322 transitions, 701 flow [2024-11-07 15:40:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:40:12,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:40:12,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 953 transitions. [2024-11-07 15:40:12,745 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8973634651600754 [2024-11-07 15:40:12,748 INFO L175 Difference]: Start difference. First operand has 324 places, 354 transitions, 715 flow. Second operand 3 states and 953 transitions. [2024-11-07 15:40:12,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 322 transitions, 701 flow [2024-11-07 15:40:12,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 322 transitions, 701 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:40:12,763 INFO L231 Difference]: Finished difference. Result has 323 places, 321 transitions, 659 flow [2024-11-07 15:40:12,766 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=659, PETRI_PLACES=323, PETRI_TRANSITIONS=321} [2024-11-07 15:40:12,769 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, -1 predicate places. [2024-11-07 15:40:12,771 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 321 transitions, 659 flow [2024-11-07 15:40:12,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:12,772 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:12,772 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] [2024-11-07 15:40:12,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 15:40:12,773 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-07 15:40:12,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:12,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1439344414, now seen corresponding path program 1 times [2024-11-07 15:40:12,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:12,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475299876] [2024-11-07 15:40:12,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:12,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:12,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:13,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:13,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:13,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475299876] [2024-11-07 15:40:13,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475299876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:13,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823857959] [2024-11-07 15:40:13,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:13,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:13,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:13,076 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:13,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 15:40:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:13,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 15:40:13,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:13,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:13,298 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:40:13,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:13,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823857959] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:40:13,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:40:13,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-07 15:40:13,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871228382] [2024-11-07 15:40:13,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:40:13,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 15:40:13,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:13,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 15:40:13,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 15:40:13,384 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 354 [2024-11-07 15:40:13,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 321 transitions, 659 flow. Second operand has 10 states, 10 states have (on average 297.8) internal successors, (2978), 10 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:13,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:13,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 354 [2024-11-07 15:40:13,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:13,726 INFO L124 PetriNetUnfolderBase]: 85/1316 cut-off events. [2024-11-07 15:40:13,727 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-07 15:40:13,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1519 conditions, 1316 events. 85/1316 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8311 event pairs, 72 based on Foata normal form. 2/1203 useless extension candidates. Maximal degree in co-relation 1424. Up to 178 conditions per place. [2024-11-07 15:40:13,736 INFO L140 encePairwiseOnDemand]: 348/354 looper letters, 27 selfloop transitions, 9 changer transitions 0/329 dead transitions. [2024-11-07 15:40:13,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 329 transitions, 749 flow [2024-11-07 15:40:13,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 15:40:13,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 15:40:13,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2702 transitions. [2024-11-07 15:40:13,745 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8480853735091023 [2024-11-07 15:40:13,745 INFO L175 Difference]: Start difference. First operand has 323 places, 321 transitions, 659 flow. Second operand 9 states and 2702 transitions. [2024-11-07 15:40:13,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 329 transitions, 749 flow [2024-11-07 15:40:13,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 329 transitions, 747 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:40:13,756 INFO L231 Difference]: Finished difference. Result has 332 places, 327 transitions, 707 flow [2024-11-07 15:40:13,757 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=707, PETRI_PLACES=332, PETRI_TRANSITIONS=327} [2024-11-07 15:40:13,758 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 8 predicate places. [2024-11-07 15:40:13,758 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 327 transitions, 707 flow [2024-11-07 15:40:13,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 297.8) internal successors, (2978), 10 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:13,760 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:13,761 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-07 15:40:13,779 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 15:40:13,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:13,962 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-07 15:40:13,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:13,963 INFO L85 PathProgramCache]: Analyzing trace with hash -909527618, now seen corresponding path program 2 times [2024-11-07 15:40:13,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:13,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804643863] [2024-11-07 15:40:13,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:13,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:14,294 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:14,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:14,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804643863] [2024-11-07 15:40:14,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804643863] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:14,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097194013] [2024-11-07 15:40:14,295 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 15:40:14,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:14,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:14,300 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:14,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 15:40:14,417 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 15:40:14,417 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 15:40:14,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-07 15:40:14,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:14,507 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 [2024-11-07 15:40:14,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-07 15:40:14,580 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:14,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-07 15:40:14,644 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:14,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-07 15:40:14,696 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-07 15:40:14,696 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 15:40:14,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097194013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:14,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 15:40:14,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-07 15:40:14,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742225213] [2024-11-07 15:40:14,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:14,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 15:40:14,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:14,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 15:40:14,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-07 15:40:15,121 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 354 [2024-11-07 15:40:15,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 327 transitions, 707 flow. Second operand has 8 states, 8 states have (on average 247.125) internal successors, (1977), 8 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:15,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:15,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 354 [2024-11-07 15:40:15,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:15,959 INFO L124 PetriNetUnfolderBase]: 1305/5058 cut-off events. [2024-11-07 15:40:15,960 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-07 15:40:15,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7680 conditions, 5058 events. 1305/5058 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 44532 event pairs, 1148 based on Foata normal form. 1/4592 useless extension candidates. Maximal degree in co-relation 7556. Up to 2434 conditions per place. [2024-11-07 15:40:15,988 INFO L140 encePairwiseOnDemand]: 342/354 looper letters, 127 selfloop transitions, 11 changer transitions 2/390 dead transitions. [2024-11-07 15:40:15,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 390 transitions, 1113 flow [2024-11-07 15:40:15,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 15:40:15,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 15:40:15,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2110 transitions. [2024-11-07 15:40:15,994 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7450564971751412 [2024-11-07 15:40:15,994 INFO L175 Difference]: Start difference. First operand has 332 places, 327 transitions, 707 flow. Second operand 8 states and 2110 transitions. [2024-11-07 15:40:15,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 390 transitions, 1113 flow [2024-11-07 15:40:15,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 390 transitions, 1107 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-07 15:40:16,002 INFO L231 Difference]: Finished difference. Result has 343 places, 334 transitions, 768 flow [2024-11-07 15:40:16,002 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=768, PETRI_PLACES=343, PETRI_TRANSITIONS=334} [2024-11-07 15:40:16,003 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 19 predicate places. [2024-11-07 15:40:16,003 INFO L471 AbstractCegarLoop]: Abstraction has has 343 places, 334 transitions, 768 flow [2024-11-07 15:40:16,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 247.125) internal successors, (1977), 8 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:16,004 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:16,005 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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] [2024-11-07 15:40:16,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 15:40:16,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:16,206 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-07 15:40:16,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:16,206 INFO L85 PathProgramCache]: Analyzing trace with hash 181443847, now seen corresponding path program 1 times [2024-11-07 15:40:16,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:16,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823567490] [2024-11-07 15:40:16,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:16,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:16,486 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:16,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:16,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823567490] [2024-11-07 15:40:16,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823567490] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:16,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900042233] [2024-11-07 15:40:16,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:16,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:16,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:16,490 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:16,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 15:40:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:16,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 15:40:16,609 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:16,663 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:16,664 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:40:16,762 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:16,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900042233] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:40:16,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:40:16,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-07 15:40:16,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197325186] [2024-11-07 15:40:16,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:40:16,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 15:40:16,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:16,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 15:40:16,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-07 15:40:16,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 354 [2024-11-07 15:40:16,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 334 transitions, 768 flow. Second operand has 18 states, 18 states have (on average 297.94444444444446) internal successors, (5363), 18 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:16,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:16,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 354 [2024-11-07 15:40:16,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:17,414 INFO L124 PetriNetUnfolderBase]: 88/1325 cut-off events. [2024-11-07 15:40:17,414 INFO L125 PetriNetUnfolderBase]: For 30/34 co-relation queries the response was YES. [2024-11-07 15:40:17,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1631 conditions, 1325 events. 88/1325 cut-off events. For 30/34 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8486 event pairs, 74 based on Foata normal form. 4/1218 useless extension candidates. Maximal degree in co-relation 1430. Up to 175 conditions per place. [2024-11-07 15:40:17,423 INFO L140 encePairwiseOnDemand]: 348/354 looper letters, 31 selfloop transitions, 21 changer transitions 0/352 dead transitions. [2024-11-07 15:40:17,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 352 transitions, 960 flow [2024-11-07 15:40:17,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 15:40:17,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-07 15:40:17,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6272 transitions. [2024-11-07 15:40:17,437 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8436911487758946 [2024-11-07 15:40:17,437 INFO L175 Difference]: Start difference. First operand has 343 places, 334 transitions, 768 flow. Second operand 21 states and 6272 transitions. [2024-11-07 15:40:17,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 352 transitions, 960 flow [2024-11-07 15:40:17,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 352 transitions, 953 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:40:17,446 INFO L231 Difference]: Finished difference. Result has 366 places, 347 transitions, 891 flow [2024-11-07 15:40:17,447 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=761, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=891, PETRI_PLACES=366, PETRI_TRANSITIONS=347} [2024-11-07 15:40:17,449 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 42 predicate places. [2024-11-07 15:40:17,449 INFO L471 AbstractCegarLoop]: Abstraction has has 366 places, 347 transitions, 891 flow [2024-11-07 15:40:17,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 297.94444444444446) internal successors, (5363), 18 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:17,452 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:17,453 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 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] [2024-11-07 15:40:17,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 15:40:17,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:17,654 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-07 15:40:17,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:17,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1248408135, now seen corresponding path program 2 times [2024-11-07 15:40:17,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:17,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248869396] [2024-11-07 15:40:17,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:17,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:17,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:18,131 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:18,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:18,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248869396] [2024-11-07 15:40:18,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248869396] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:18,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861218905] [2024-11-07 15:40:18,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 15:40:18,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:18,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:18,135 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:18,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 15:40:18,252 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 15:40:18,252 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 15:40:18,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 15:40:18,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:18,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-07 15:40:18,310 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 28 treesize of output 27 [2024-11-07 15:40:18,339 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:18,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-07 15:40:18,377 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:18,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-07 15:40:18,413 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-07 15:40:18,414 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 15:40:18,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861218905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:18,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 15:40:18,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-07 15:40:18,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352681378] [2024-11-07 15:40:18,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:18,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:40:18,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:18,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:40:18,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-07 15:40:18,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 354 [2024-11-07 15:40:18,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 347 transitions, 891 flow. Second operand has 6 states, 6 states have (on average 249.66666666666666) internal successors, (1498), 6 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:18,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:18,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 354 [2024-11-07 15:40:18,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:19,724 INFO L124 PetriNetUnfolderBase]: 1362/5146 cut-off events. [2024-11-07 15:40:19,725 INFO L125 PetriNetUnfolderBase]: For 281/285 co-relation queries the response was YES. [2024-11-07 15:40:19,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8333 conditions, 5146 events. 1362/5146 cut-off events. For 281/285 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 45156 event pairs, 911 based on Foata normal form. 33/4764 useless extension candidates. Maximal degree in co-relation 8125. Up to 2520 conditions per place. [2024-11-07 15:40:19,757 INFO L140 encePairwiseOnDemand]: 327/354 looper letters, 107 selfloop transitions, 92 changer transitions 0/463 dead transitions. [2024-11-07 15:40:19,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 463 transitions, 1543 flow [2024-11-07 15:40:19,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:40:19,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:40:19,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1676 transitions. [2024-11-07 15:40:19,762 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7890772128060264 [2024-11-07 15:40:19,762 INFO L175 Difference]: Start difference. First operand has 366 places, 347 transitions, 891 flow. Second operand 6 states and 1676 transitions. [2024-11-07 15:40:19,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 463 transitions, 1543 flow [2024-11-07 15:40:19,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 463 transitions, 1519 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-07 15:40:19,774 INFO L231 Difference]: Finished difference. Result has 370 places, 431 transitions, 1475 flow [2024-11-07 15:40:19,774 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=867, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1475, PETRI_PLACES=370, PETRI_TRANSITIONS=431} [2024-11-07 15:40:19,775 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 46 predicate places. [2024-11-07 15:40:19,775 INFO L471 AbstractCegarLoop]: Abstraction has has 370 places, 431 transitions, 1475 flow [2024-11-07 15:40:19,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 249.66666666666666) internal successors, (1498), 6 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:19,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:19,777 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 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] [2024-11-07 15:40:19,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-07 15:40:19,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:19,981 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-07 15:40:19,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:19,982 INFO L85 PathProgramCache]: Analyzing trace with hash 45947571, now seen corresponding path program 1 times [2024-11-07 15:40:19,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:19,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020618716] [2024-11-07 15:40:19,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:19,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:20,361 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 15:40:20,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:20,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020618716] [2024-11-07 15:40:20,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020618716] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:20,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109055124] [2024-11-07 15:40:20,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:20,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:20,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:20,366 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:20,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 15:40:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:20,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 15:40:20,489 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:20,648 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 15:40:20,651 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:40:20,934 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 15:40:20,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109055124] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:40:20,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:40:20,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-07 15:40:20,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684943295] [2024-11-07 15:40:20,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:40:20,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 15:40:20,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:20,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 15:40:20,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-07 15:40:20,971 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 354 [2024-11-07 15:40:20,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 431 transitions, 1475 flow. Second operand has 23 states, 23 states have (on average 298.04347826086956) internal successors, (6855), 23 states have internal predecessors, (6855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:20,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:20,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 354 [2024-11-07 15:40:20,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:21,559 INFO L124 PetriNetUnfolderBase]: 240/1956 cut-off events. [2024-11-07 15:40:21,559 INFO L125 PetriNetUnfolderBase]: For 500/562 co-relation queries the response was YES. [2024-11-07 15:40:21,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3091 conditions, 1956 events. 240/1956 cut-off events. For 500/562 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14313 event pairs, 72 based on Foata normal form. 3/1818 useless extension candidates. Maximal degree in co-relation 2803. Up to 232 conditions per place. [2024-11-07 15:40:21,576 INFO L140 encePairwiseOnDemand]: 348/354 looper letters, 34 selfloop transitions, 30 changer transitions 0/448 dead transitions. [2024-11-07 15:40:21,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 448 transitions, 1725 flow [2024-11-07 15:40:21,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-07 15:40:21,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-07 15:40:21,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8947 transitions. [2024-11-07 15:40:21,631 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.842467043314501 [2024-11-07 15:40:21,631 INFO L175 Difference]: Start difference. First operand has 370 places, 431 transitions, 1475 flow. Second operand 30 states and 8947 transitions. [2024-11-07 15:40:21,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 448 transitions, 1725 flow [2024-11-07 15:40:21,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 448 transitions, 1707 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-07 15:40:21,645 INFO L231 Difference]: Finished difference. Result has 403 places, 441 transitions, 1609 flow [2024-11-07 15:40:21,645 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=1457, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1609, PETRI_PLACES=403, PETRI_TRANSITIONS=441} [2024-11-07 15:40:21,647 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 79 predicate places. [2024-11-07 15:40:21,648 INFO L471 AbstractCegarLoop]: Abstraction has has 403 places, 441 transitions, 1609 flow [2024-11-07 15:40:21,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 298.04347826086956) internal successors, (6855), 23 states have internal predecessors, (6855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:21,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:21,652 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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] [2024-11-07 15:40:21,669 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 15:40:21,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:21,853 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-07 15:40:21,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:21,854 INFO L85 PathProgramCache]: Analyzing trace with hash -137490686, now seen corresponding path program 2 times [2024-11-07 15:40:21,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:21,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603567552] [2024-11-07 15:40:21,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:21,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:40:21,891 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 15:40:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:40:21,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 15:40:21,975 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 15:40:21,976 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-07 15:40:21,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-07 15:40:21,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-07 15:40:21,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-07 15:40:21,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-07 15:40:21,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-07 15:40:21,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-07 15:40:21,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-07 15:40:21,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-07 15:40:21,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-07 15:40:21,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-07 15:40:21,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-07 15:40:21,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-07 15:40:21,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-07 15:40:21,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-07 15:40:21,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-07 15:40:21,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-07 15:40:21,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-07 15:40:21,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 15:40:21,980 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-11-07 15:40:21,983 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 15:40:21,983 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-07 15:40:22,037 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 15:40:22,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 429 places, 472 transitions, 960 flow [2024-11-07 15:40:22,147 INFO L124 PetriNetUnfolderBase]: 80/758 cut-off events. [2024-11-07 15:40:22,147 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-11-07 15:40:22,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 758 events. 80/758 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3374 event pairs, 0 based on Foata normal form. 0/642 useless extension candidates. Maximal degree in co-relation 485. Up to 12 conditions per place. [2024-11-07 15:40:22,160 INFO L82 GeneralOperation]: Start removeDead. Operand has 429 places, 472 transitions, 960 flow [2024-11-07 15:40:22,168 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 429 places, 472 transitions, 960 flow [2024-11-07 15:40:22,170 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:40:22,171 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;@1ea2a01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:40:22,171 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-07 15:40:22,180 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:40:22,181 INFO L124 PetriNetUnfolderBase]: 8/133 cut-off events. [2024-11-07 15:40:22,181 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:40:22,181 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:22,181 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] [2024-11-07 15:40:22,182 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:40:22,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:22,182 INFO L85 PathProgramCache]: Analyzing trace with hash 175079599, now seen corresponding path program 1 times [2024-11-07 15:40:22,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:22,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927938743] [2024-11-07 15:40:22,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:22,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:22,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:22,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:22,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927938743] [2024-11-07 15:40:22,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927938743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:22,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:40:22,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:40:22,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604285897] [2024-11-07 15:40:22,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:22,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:40:22,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:22,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:40:22,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:40:22,252 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 472 [2024-11-07 15:40:22,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 472 transitions, 960 flow. Second operand has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:22,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:22,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 472 [2024-11-07 15:40:22,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:24,228 INFO L124 PetriNetUnfolderBase]: 1580/11913 cut-off events. [2024-11-07 15:40:24,228 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-11-07 15:40:24,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14374 conditions, 11913 events. 1580/11913 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 142637 event pairs, 1464 based on Foata normal form. 2927/13935 useless extension candidates. Maximal degree in co-relation 12718. Up to 2408 conditions per place. [2024-11-07 15:40:24,333 INFO L140 encePairwiseOnDemand]: 427/472 looper letters, 33 selfloop transitions, 2 changer transitions 1/425 dead transitions. [2024-11-07 15:40:24,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 425 transitions, 936 flow [2024-11-07 15:40:24,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:40:24,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:40:24,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1258 transitions. [2024-11-07 15:40:24,337 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8884180790960452 [2024-11-07 15:40:24,337 INFO L175 Difference]: Start difference. First operand has 429 places, 472 transitions, 960 flow. Second operand 3 states and 1258 transitions. [2024-11-07 15:40:24,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 425 transitions, 936 flow [2024-11-07 15:40:24,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 425 transitions, 936 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:40:24,346 INFO L231 Difference]: Finished difference. Result has 426 places, 424 transitions, 874 flow [2024-11-07 15:40:24,347 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=874, PETRI_PLACES=426, PETRI_TRANSITIONS=424} [2024-11-07 15:40:24,348 INFO L277 CegarLoopForPetriNet]: 429 programPoint places, -3 predicate places. [2024-11-07 15:40:24,348 INFO L471 AbstractCegarLoop]: Abstraction has has 426 places, 424 transitions, 874 flow [2024-11-07 15:40:24,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:24,349 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:24,350 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] [2024-11-07 15:40:24,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 15:40:24,350 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:40:24,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:24,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1665323510, now seen corresponding path program 1 times [2024-11-07 15:40:24,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:24,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966666750] [2024-11-07 15:40:24,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:24,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:24,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:24,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:24,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966666750] [2024-11-07 15:40:24,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966666750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:24,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606645526] [2024-11-07 15:40:24,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:24,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:24,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:24,438 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:24,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-07 15:40:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:24,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 15:40:24,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:24,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:24,567 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:40:24,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:24,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606645526] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:40:24,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:40:24,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-07 15:40:24,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552586220] [2024-11-07 15:40:24,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:40:24,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 15:40:24,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:24,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 15:40:24,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 15:40:24,618 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 472 [2024-11-07 15:40:24,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 424 transitions, 874 flow. Second operand has 10 states, 10 states have (on average 391.8) internal successors, (3918), 10 states have internal predecessors, (3918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:24,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:24,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 472 [2024-11-07 15:40:24,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:26,318 INFO L124 PetriNetUnfolderBase]: 1580/11919 cut-off events. [2024-11-07 15:40:26,318 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-11-07 15:40:26,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14399 conditions, 11919 events. 1580/11919 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 142579 event pairs, 1464 based on Foata normal form. 2/11017 useless extension candidates. Maximal degree in co-relation 14303. Up to 2408 conditions per place. [2024-11-07 15:40:26,423 INFO L140 encePairwiseOnDemand]: 466/472 looper letters, 37 selfloop transitions, 9 changer transitions 0/432 dead transitions. [2024-11-07 15:40:26,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 432 transitions, 984 flow [2024-11-07 15:40:26,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 15:40:26,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 15:40:26,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3558 transitions. [2024-11-07 15:40:26,432 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8375706214689266 [2024-11-07 15:40:26,432 INFO L175 Difference]: Start difference. First operand has 426 places, 424 transitions, 874 flow. Second operand 9 states and 3558 transitions. [2024-11-07 15:40:26,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 432 transitions, 984 flow [2024-11-07 15:40:26,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 432 transitions, 982 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:40:26,441 INFO L231 Difference]: Finished difference. Result has 435 places, 430 transitions, 922 flow [2024-11-07 15:40:26,441 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=872, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=922, PETRI_PLACES=435, PETRI_TRANSITIONS=430} [2024-11-07 15:40:26,442 INFO L277 CegarLoopForPetriNet]: 429 programPoint places, 6 predicate places. [2024-11-07 15:40:26,442 INFO L471 AbstractCegarLoop]: Abstraction has has 435 places, 430 transitions, 922 flow [2024-11-07 15:40:26,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 391.8) internal successors, (3918), 10 states have internal predecessors, (3918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:26,444 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:26,444 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-07 15:40:26,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-07 15:40:26,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-07 15:40:26,646 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:40:26,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:26,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1659774570, now seen corresponding path program 2 times [2024-11-07 15:40:26,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:26,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118966276] [2024-11-07 15:40:26,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:26,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:26,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:26,813 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:26,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:26,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118966276] [2024-11-07 15:40:26,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118966276] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:26,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646086171] [2024-11-07 15:40:26,813 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 15:40:26,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:26,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:26,816 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:26,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-07 15:40:26,935 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 15:40:26,935 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 15:40:26,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-07 15:40:26,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:26,996 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 [2024-11-07 15:40:27,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-07 15:40:27,061 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:27,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-07 15:40:27,111 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:27,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-07 15:40:27,150 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-07 15:40:27,150 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 15:40:27,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646086171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:27,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 15:40:27,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-07 15:40:27,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050889288] [2024-11-07 15:40:27,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:27,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 15:40:27,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:27,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 15:40:27,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-07 15:40:27,515 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 472 [2024-11-07 15:40:27,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 430 transitions, 922 flow. Second operand has 8 states, 8 states have (on average 321.125) internal successors, (2569), 8 states have internal predecessors, (2569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:27,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:27,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 472 [2024-11-07 15:40:27,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:49,638 INFO L124 PetriNetUnfolderBase]: 77253/188861 cut-off events. [2024-11-07 15:40:49,638 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2024-11-07 15:40:50,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304597 conditions, 188861 events. 77253/188861 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 3719. Compared 2541727 event pairs, 70336 based on Foata normal form. 1/174164 useless extension candidates. Maximal degree in co-relation 304472. Up to 110272 conditions per place. [2024-11-07 15:40:50,782 INFO L140 encePairwiseOnDemand]: 460/472 looper letters, 188 selfloop transitions, 11 changer transitions 0/522 dead transitions. [2024-11-07 15:40:50,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 522 transitions, 1504 flow [2024-11-07 15:40:50,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 15:40:50,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 15:40:50,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2761 transitions. [2024-11-07 15:40:50,788 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.731197033898305 [2024-11-07 15:40:50,788 INFO L175 Difference]: Start difference. First operand has 435 places, 430 transitions, 922 flow. Second operand 8 states and 2761 transitions. [2024-11-07 15:40:50,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 522 transitions, 1504 flow [2024-11-07 15:40:50,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 522 transitions, 1498 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-07 15:40:50,796 INFO L231 Difference]: Finished difference. Result has 446 places, 438 transitions, 987 flow [2024-11-07 15:40:50,797 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=987, PETRI_PLACES=446, PETRI_TRANSITIONS=438} [2024-11-07 15:40:50,798 INFO L277 CegarLoopForPetriNet]: 429 programPoint places, 17 predicate places. [2024-11-07 15:40:50,798 INFO L471 AbstractCegarLoop]: Abstraction has has 446 places, 438 transitions, 987 flow [2024-11-07 15:40:50,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 321.125) internal successors, (2569), 8 states have internal predecessors, (2569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:50,799 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:50,800 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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] [2024-11-07 15:40:50,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-07 15:40:51,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:51,005 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:40:51,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:51,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1502060565, now seen corresponding path program 1 times [2024-11-07 15:40:51,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:51,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975791924] [2024-11-07 15:40:51,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:51,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:51,153 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:51,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:51,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975791924] [2024-11-07 15:40:51,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975791924] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:51,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463286453] [2024-11-07 15:40:51,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:51,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:51,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:51,156 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:51,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-07 15:40:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:51,276 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 15:40:51,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:51,321 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:51,321 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:40:51,406 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:51,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463286453] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:40:51,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:40:51,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-07 15:40:51,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126770152] [2024-11-07 15:40:51,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:40:51,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 15:40:51,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:51,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 15:40:51,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-07 15:40:51,439 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 472 [2024-11-07 15:40:51,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 438 transitions, 987 flow. Second operand has 18 states, 18 states have (on average 391.94444444444446) internal successors, (7055), 18 states have internal predecessors, (7055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:51,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:51,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 472 [2024-11-07 15:40:51,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:53,197 INFO L124 PetriNetUnfolderBase]: 1611/12171 cut-off events. [2024-11-07 15:40:53,197 INFO L125 PetriNetUnfolderBase]: For 115/119 co-relation queries the response was YES. [2024-11-07 15:40:53,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15023 conditions, 12171 events. 1611/12171 cut-off events. For 115/119 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 146958 event pairs, 1492 based on Foata normal form. 4/11242 useless extension candidates. Maximal degree in co-relation 14821. Up to 2431 conditions per place. [2024-11-07 15:40:53,245 INFO L140 encePairwiseOnDemand]: 466/472 looper letters, 41 selfloop transitions, 21 changer transitions 0/456 dead transitions. [2024-11-07 15:40:53,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 456 transitions, 1199 flow [2024-11-07 15:40:53,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 15:40:53,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-07 15:40:53,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8256 transitions. [2024-11-07 15:40:53,252 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8329297820823245 [2024-11-07 15:40:53,252 INFO L175 Difference]: Start difference. First operand has 446 places, 438 transitions, 987 flow. Second operand 21 states and 8256 transitions. [2024-11-07 15:40:53,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 456 transitions, 1199 flow [2024-11-07 15:40:53,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 456 transitions, 1197 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:40:53,260 INFO L231 Difference]: Finished difference. Result has 470 places, 451 transitions, 1115 flow [2024-11-07 15:40:53,261 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=985, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1115, PETRI_PLACES=470, PETRI_TRANSITIONS=451} [2024-11-07 15:40:53,261 INFO L277 CegarLoopForPetriNet]: 429 programPoint places, 41 predicate places. [2024-11-07 15:40:53,261 INFO L471 AbstractCegarLoop]: Abstraction has has 470 places, 451 transitions, 1115 flow [2024-11-07 15:40:53,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 391.94444444444446) internal successors, (7055), 18 states have internal predecessors, (7055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:53,264 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:53,264 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 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] [2024-11-07 15:40:53,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-07 15:40:53,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:53,465 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:40:53,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:53,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1314367275, now seen corresponding path program 2 times [2024-11-07 15:40:53,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:53,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118060795] [2024-11-07 15:40:53,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:53,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:53,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:53,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118060795] [2024-11-07 15:40:53,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118060795] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:53,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730306437] [2024-11-07 15:40:53,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 15:40:53,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:53,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:53,759 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:53,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-07 15:40:53,875 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 15:40:53,875 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 15:40:53,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 15:40:53,882 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:53,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-07 15:40:53,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-07 15:40:53,932 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:53,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-07 15:40:53,967 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:53,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-07 15:40:54,000 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-07 15:40:54,001 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 15:40:54,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730306437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:54,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 15:40:54,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-07 15:40:54,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345477780] [2024-11-07 15:40:54,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:54,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:40:54,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:54,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:40:54,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-07 15:40:54,302 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 472 [2024-11-07 15:40:54,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 451 transitions, 1115 flow. Second operand has 6 states, 6 states have (on average 323.6666666666667) internal successors, (1942), 6 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:54,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:54,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 472 [2024-11-07 15:40:54,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand