./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.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_42-trylock2_racefree.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', '844ba080c7d33529db727776ee230d62edb7b62a6350a8061572438c458d73d3'] 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_42-trylock2_racefree.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 844ba080c7d33529db727776ee230d62edb7b62a6350a8061572438c458d73d3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 15:39:20,289 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 15:39:20,392 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-07 15:39:20,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 15:39:20,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 15:39:20,427 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 15:39:20,428 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 15:39:20,429 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 15:39:20,429 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 15:39:20,429 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 15:39:20,430 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 15:39:20,430 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 15:39:20,430 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 15:39:20,431 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 15:39:20,431 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 15:39:20,431 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 15:39:20,431 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 15:39:20,431 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 15:39:20,432 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 15:39:20,432 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 15:39:20,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 15:39:20,432 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 15:39:20,432 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-07 15:39:20,432 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 15:39:20,432 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 15:39:20,432 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 15:39:20,433 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 15:39:20,433 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 15:39:20,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 15:39:20,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 15:39:20,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 15:39:20,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:39:20,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 15:39:20,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 15:39:20,434 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 15:39:20,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 15:39:20,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 15:39:20,435 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 15:39:20,435 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 15:39:20,435 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 15:39:20,435 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 15:39:20,435 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 -> 844ba080c7d33529db727776ee230d62edb7b62a6350a8061572438c458d73d3 [2024-11-07 15:39:20,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 15:39:20,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 15:39:20,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 15:39:20,737 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 15:39:20,738 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 15:39:20,739 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i [2024-11-07 15:39:22,144 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 15:39:22,465 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 15:39:22,466 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i [2024-11-07 15:39:22,484 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bb85936ca/2ec796f3e59c48b0b377607040bea017/FLAG68c10eb42 [2024-11-07 15:39:22,501 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bb85936ca/2ec796f3e59c48b0b377607040bea017 [2024-11-07 15:39:22,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 15:39:22,506 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 15:39:22,508 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 15:39:22,509 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 15:39:22,512 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 15:39:22,513 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:39:22" (1/1) ... [2024-11-07 15:39:22,514 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44ef2a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:22, skipping insertion in model container [2024-11-07 15:39:22,515 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:39:22" (1/1) ... [2024-11-07 15:39:22,548 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 15:39:22,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:39:22,866 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 15:39:22,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:39:22,964 INFO L204 MainTranslator]: Completed translation [2024-11-07 15:39:22,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:22 WrapperNode [2024-11-07 15:39:22,965 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 15:39:22,966 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 15:39:22,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 15:39:22,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 15:39:22,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:22" (1/1) ... [2024-11-07 15:39:22,991 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:22" (1/1) ... [2024-11-07 15:39:23,018 INFO L138 Inliner]: procedures = 172, calls = 61, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 176 [2024-11-07 15:39:23,019 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 15:39:23,019 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 15:39:23,019 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 15:39:23,019 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 15:39:23,027 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:22" (1/1) ... [2024-11-07 15:39:23,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:22" (1/1) ... [2024-11-07 15:39:23,034 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:22" (1/1) ... [2024-11-07 15:39:23,035 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:22" (1/1) ... [2024-11-07 15:39:23,049 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:22" (1/1) ... [2024-11-07 15:39:23,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:22" (1/1) ... [2024-11-07 15:39:23,060 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:22" (1/1) ... [2024-11-07 15:39:23,064 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:22" (1/1) ... [2024-11-07 15:39:23,067 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 15:39:23,068 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 15:39:23,068 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 15:39:23,069 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 15:39:23,069 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:22" (1/1) ... [2024-11-07 15:39:23,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:39:23,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:39:23,103 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 15:39:23,107 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 15:39:23,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-07 15:39:23,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-07 15:39:23,129 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 15:39:23,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 15:39:23,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 15:39:23,130 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-07 15:39:23,130 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-07 15:39:23,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 15:39:23,130 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2024-11-07 15:39:23,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-07 15:39:23,130 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 15:39:23,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 15:39:23,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 15:39:23,131 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 15:39:23,254 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 15:39:23,256 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 15:39:23,682 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 15:39:23,682 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 15:39:23,731 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 15:39:23,731 INFO L316 CfgBuilder]: Removed 23 assume(true) statements. [2024-11-07 15:39:23,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:39:23 BoogieIcfgContainer [2024-11-07 15:39:23,731 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 15:39:23,734 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 15:39:23,734 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 15:39:23,738 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 15:39:23,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:39:22" (1/3) ... [2024-11-07 15:39:23,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16902585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:39:23, skipping insertion in model container [2024-11-07 15:39:23,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:22" (2/3) ... [2024-11-07 15:39:23,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16902585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:39:23, skipping insertion in model container [2024-11-07 15:39:23,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:39:23" (3/3) ... [2024-11-07 15:39:23,740 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_42-trylock2_racefree.i [2024-11-07 15:39:23,752 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 15:39:23,752 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-07 15:39:23,752 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 15:39:23,821 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-07 15:39:23,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 273 transitions, 553 flow [2024-11-07 15:39:24,000 INFO L124 PetriNetUnfolderBase]: 53/413 cut-off events. [2024-11-07 15:39:24,002 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 15:39:24,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 413 events. 53/413 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1929 event pairs, 0 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 234. Up to 6 conditions per place. [2024-11-07 15:39:24,010 INFO L82 GeneralOperation]: Start removeDead. Operand has 243 places, 273 transitions, 553 flow [2024-11-07 15:39:24,016 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 243 places, 273 transitions, 553 flow [2024-11-07 15:39:24,022 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:39:24,034 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;@12ade366, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:39:24,035 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-07 15:39:24,047 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:39:24,047 INFO L124 PetriNetUnfolderBase]: 2/61 cut-off events. [2024-11-07 15:39:24,048 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:39:24,048 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:24,048 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:24,049 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:39:24,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:24,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1396948042, now seen corresponding path program 1 times [2024-11-07 15:39:24,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:24,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715482143] [2024-11-07 15:39:24,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:24,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:24,338 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 15:39:24,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:24,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715482143] [2024-11-07 15:39:24,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715482143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:24,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:24,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:39:24,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892514432] [2024-11-07 15:39:24,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:24,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:39:24,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:24,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:39:24,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:39:24,406 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 273 [2024-11-07 15:39:24,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 273 transitions, 553 flow. Second operand has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 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 15:39:24,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:24,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 273 [2024-11-07 15:39:24,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:24,838 INFO L124 PetriNetUnfolderBase]: 229/1869 cut-off events. [2024-11-07 15:39:24,838 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-07 15:39:24,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2342 conditions, 1869 events. 229/1869 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 12907 event pairs, 0 based on Foata normal form. 323/2009 useless extension candidates. Maximal degree in co-relation 2253. Up to 454 conditions per place. [2024-11-07 15:39:24,854 INFO L140 encePairwiseOnDemand]: 239/273 looper letters, 44 selfloop transitions, 2 changer transitions 0/246 dead transitions. [2024-11-07 15:39:24,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 246 transitions, 591 flow [2024-11-07 15:39:24,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:39:24,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:39:24,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 703 transitions. [2024-11-07 15:39:24,874 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8583638583638583 [2024-11-07 15:39:24,876 INFO L175 Difference]: Start difference. First operand has 243 places, 273 transitions, 553 flow. Second operand 3 states and 703 transitions. [2024-11-07 15:39:24,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 246 transitions, 591 flow [2024-11-07 15:39:24,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 246 transitions, 591 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:39:24,891 INFO L231 Difference]: Finished difference. Result has 238 places, 234 transitions, 483 flow [2024-11-07 15:39:24,893 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=483, PETRI_PLACES=238, PETRI_TRANSITIONS=234} [2024-11-07 15:39:24,897 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -5 predicate places. [2024-11-07 15:39:24,897 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 234 transitions, 483 flow [2024-11-07 15:39:24,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 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 15:39:24,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:24,899 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] [2024-11-07 15:39:24,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 15:39:24,899 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:39:24,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:24,900 INFO L85 PathProgramCache]: Analyzing trace with hash 853146814, now seen corresponding path program 1 times [2024-11-07 15:39:24,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:24,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923335215] [2024-11-07 15:39:24,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:24,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:25,523 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 15:39:25,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:25,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923335215] [2024-11-07 15:39:25,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923335215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:25,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:25,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:39:25,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085043501] [2024-11-07 15:39:25,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:25,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:39:25,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:25,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:39:25,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:39:25,667 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 273 [2024-11-07 15:39:25,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 234 transitions, 483 flow. Second operand has 6 states, 6 states have (on average 193.5) internal successors, (1161), 6 states have internal predecessors, (1161), 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 15:39:25,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:25,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 273 [2024-11-07 15:39:25,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:26,121 INFO L124 PetriNetUnfolderBase]: 349/2118 cut-off events. [2024-11-07 15:39:26,121 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-07 15:39:26,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2895 conditions, 2118 events. 349/2118 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 15403 event pairs, 13 based on Foata normal form. 0/1931 useless extension candidates. Maximal degree in co-relation 2801. Up to 587 conditions per place. [2024-11-07 15:39:26,134 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 88 selfloop transitions, 5 changer transitions 0/281 dead transitions. [2024-11-07 15:39:26,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 281 transitions, 763 flow [2024-11-07 15:39:26,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:39:26,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:39:26,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1246 transitions. [2024-11-07 15:39:26,139 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7606837606837606 [2024-11-07 15:39:26,139 INFO L175 Difference]: Start difference. First operand has 238 places, 234 transitions, 483 flow. Second operand 6 states and 1246 transitions. [2024-11-07 15:39:26,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 281 transitions, 763 flow [2024-11-07 15:39:26,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 281 transitions, 759 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:39:26,145 INFO L231 Difference]: Finished difference. Result has 240 places, 233 transitions, 487 flow [2024-11-07 15:39:26,145 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=487, PETRI_PLACES=240, PETRI_TRANSITIONS=233} [2024-11-07 15:39:26,146 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -3 predicate places. [2024-11-07 15:39:26,146 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 233 transitions, 487 flow [2024-11-07 15:39:26,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 193.5) internal successors, (1161), 6 states have internal predecessors, (1161), 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 15:39:26,147 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:26,147 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:26,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 15:39:26,147 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:39:26,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:26,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1690112521, now seen corresponding path program 1 times [2024-11-07 15:39:26,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:26,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010815663] [2024-11-07 15:39:26,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:26,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:26,203 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 15:39:26,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:26,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010815663] [2024-11-07 15:39:26,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010815663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:26,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:26,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:39:26,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949760092] [2024-11-07 15:39:26,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:26,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:39:26,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:26,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:39:26,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:39:26,237 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 273 [2024-11-07 15:39:26,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 233 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 194.66666666666666) internal successors, (584), 3 states have internal predecessors, (584), 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 15:39:26,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:26,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 273 [2024-11-07 15:39:26,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:26,754 INFO L124 PetriNetUnfolderBase]: 596/3781 cut-off events. [2024-11-07 15:39:26,755 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-07 15:39:26,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5039 conditions, 3781 events. 596/3781 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 32077 event pairs, 110 based on Foata normal form. 0/3422 useless extension candidates. Maximal degree in co-relation 4969. Up to 735 conditions per place. [2024-11-07 15:39:26,769 INFO L140 encePairwiseOnDemand]: 258/273 looper letters, 68 selfloop transitions, 10 changer transitions 0/266 dead transitions. [2024-11-07 15:39:26,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 266 transitions, 712 flow [2024-11-07 15:39:26,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:39:26,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:39:26,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 662 transitions. [2024-11-07 15:39:26,772 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8083028083028083 [2024-11-07 15:39:26,774 INFO L175 Difference]: Start difference. First operand has 240 places, 233 transitions, 487 flow. Second operand 3 states and 662 transitions. [2024-11-07 15:39:26,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 266 transitions, 712 flow [2024-11-07 15:39:26,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 266 transitions, 702 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:39:26,780 INFO L231 Difference]: Finished difference. Result has 237 places, 239 transitions, 551 flow [2024-11-07 15:39:26,781 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=551, PETRI_PLACES=237, PETRI_TRANSITIONS=239} [2024-11-07 15:39:26,781 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -6 predicate places. [2024-11-07 15:39:26,781 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 239 transitions, 551 flow [2024-11-07 15:39:26,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.66666666666666) internal successors, (584), 3 states have internal predecessors, (584), 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 15:39:26,782 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:26,782 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] [2024-11-07 15:39:26,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 15:39:26,782 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:39:26,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:26,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1606535005, now seen corresponding path program 1 times [2024-11-07 15:39:26,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:26,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042268453] [2024-11-07 15:39:26,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:26,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:26,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:26,832 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 15:39:26,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:26,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042268453] [2024-11-07 15:39:26,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042268453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:26,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:26,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:39:26,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831507612] [2024-11-07 15:39:26,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:26,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:39:26,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:26,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:39:26,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:39:26,870 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 273 [2024-11-07 15:39:26,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 239 transitions, 551 flow. Second operand has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 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 15:39:26,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:26,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 273 [2024-11-07 15:39:26,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:27,359 INFO L124 PetriNetUnfolderBase]: 592/3799 cut-off events. [2024-11-07 15:39:27,359 INFO L125 PetriNetUnfolderBase]: For 412/416 co-relation queries the response was YES. [2024-11-07 15:39:27,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5431 conditions, 3799 events. 592/3799 cut-off events. For 412/416 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 32118 event pairs, 409 based on Foata normal form. 4/3437 useless extension candidates. Maximal degree in co-relation 5361. Up to 1109 conditions per place. [2024-11-07 15:39:27,380 INFO L140 encePairwiseOnDemand]: 266/273 looper letters, 57 selfloop transitions, 8 changer transitions 0/260 dead transitions. [2024-11-07 15:39:27,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 260 transitions, 739 flow [2024-11-07 15:39:27,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:39:27,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:39:27,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 656 transitions. [2024-11-07 15:39:27,385 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.800976800976801 [2024-11-07 15:39:27,385 INFO L175 Difference]: Start difference. First operand has 237 places, 239 transitions, 551 flow. Second operand 3 states and 656 transitions. [2024-11-07 15:39:27,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 260 transitions, 739 flow [2024-11-07 15:39:27,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 260 transitions, 713 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:39:27,395 INFO L231 Difference]: Finished difference. Result has 239 places, 246 transitions, 603 flow [2024-11-07 15:39:27,395 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=603, PETRI_PLACES=239, PETRI_TRANSITIONS=246} [2024-11-07 15:39:27,396 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -4 predicate places. [2024-11-07 15:39:27,397 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 246 transitions, 603 flow [2024-11-07 15:39:27,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 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 15:39:27,397 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:27,397 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-07 15:39:27,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 15:39:27,398 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:39:27,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:27,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1881481615, now seen corresponding path program 1 times [2024-11-07 15:39:27,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:27,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998244744] [2024-11-07 15:39:27,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:27,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:39:27,432 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 15:39:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:39:27,476 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 15:39:27,477 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 15:39:27,478 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-07 15:39:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-07 15:39:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-07 15:39:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-07 15:39:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-07 15:39:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-07 15:39:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-11-07 15:39:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-07 15:39:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-07 15:39:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-07 15:39:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-07 15:39:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-07 15:39:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-07 15:39:27,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-07 15:39:27,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-07 15:39:27,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-07 15:39:27,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-07 15:39:27,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-07 15:39:27,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-07 15:39:27,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-07 15:39:27,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-07 15:39:27,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-07 15:39:27,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-07 15:39:27,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 15:39:27,481 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-07 15:39:27,484 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 15:39:27,485 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-07 15:39:27,541 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 15:39:27,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 325 places, 366 transitions, 748 flow [2024-11-07 15:39:27,642 INFO L124 PetriNetUnfolderBase]: 88/674 cut-off events. [2024-11-07 15:39:27,643 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-07 15:39:27,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 674 events. 88/674 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3424 event pairs, 0 based on Foata normal form. 0/547 useless extension candidates. Maximal degree in co-relation 415. Up to 9 conditions per place. [2024-11-07 15:39:27,650 INFO L82 GeneralOperation]: Start removeDead. Operand has 325 places, 366 transitions, 748 flow [2024-11-07 15:39:27,657 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 325 places, 366 transitions, 748 flow [2024-11-07 15:39:27,659 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:39:27,660 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;@12ade366, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:39:27,661 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-11-07 15:39:27,665 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:39:27,666 INFO L124 PetriNetUnfolderBase]: 2/61 cut-off events. [2024-11-07 15:39:27,666 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:39:27,666 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:27,666 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:27,666 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:39:27,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:27,667 INFO L85 PathProgramCache]: Analyzing trace with hash -742247900, now seen corresponding path program 1 times [2024-11-07 15:39:27,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:27,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247293081] [2024-11-07 15:39:27,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:27,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:27,715 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 15:39:27,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:27,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247293081] [2024-11-07 15:39:27,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247293081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:27,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:27,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:39:27,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452865206] [2024-11-07 15:39:27,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:27,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:39:27,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:27,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:39:27,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:39:27,744 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 366 [2024-11-07 15:39:27,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 366 transitions, 748 flow. Second operand has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 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 15:39:27,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:27,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 366 [2024-11-07 15:39:27,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:31,741 INFO L124 PetriNetUnfolderBase]: 6064/28771 cut-off events. [2024-11-07 15:39:31,741 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-11-07 15:39:31,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38370 conditions, 28771 events. 6064/28771 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 358509 event pairs, 5747 based on Foata normal form. 6265/32376 useless extension candidates. Maximal degree in co-relation 33103. Up to 9513 conditions per place. [2024-11-07 15:39:31,910 INFO L140 encePairwiseOnDemand]: 320/366 looper letters, 59 selfloop transitions, 2 changer transitions 0/328 dead transitions. [2024-11-07 15:39:31,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 328 transitions, 794 flow [2024-11-07 15:39:31,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:39:31,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:39:31,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 931 transitions. [2024-11-07 15:39:31,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8479052823315119 [2024-11-07 15:39:31,913 INFO L175 Difference]: Start difference. First operand has 325 places, 366 transitions, 748 flow. Second operand 3 states and 931 transitions. [2024-11-07 15:39:31,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 328 transitions, 794 flow [2024-11-07 15:39:31,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 328 transitions, 794 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:39:31,919 INFO L231 Difference]: Finished difference. Result has 320 places, 316 transitions, 658 flow [2024-11-07 15:39:31,919 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=658, PETRI_PLACES=320, PETRI_TRANSITIONS=316} [2024-11-07 15:39:31,920 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -5 predicate places. [2024-11-07 15:39:31,920 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 316 transitions, 658 flow [2024-11-07 15:39:31,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 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 15:39:31,921 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:31,921 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] [2024-11-07 15:39:31,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 15:39:31,921 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:39:31,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:31,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1340197524, now seen corresponding path program 1 times [2024-11-07 15:39:31,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:31,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829312474] [2024-11-07 15:39:31,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:31,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:32,191 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 15:39:32,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:32,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829312474] [2024-11-07 15:39:32,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829312474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:32,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:32,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:39:32,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552555454] [2024-11-07 15:39:32,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:32,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:39:32,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:32,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:39:32,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:39:32,286 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 366 [2024-11-07 15:39:32,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 316 transitions, 658 flow. Second operand has 6 states, 6 states have (on average 260.5) internal successors, (1563), 6 states have internal predecessors, (1563), 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 15:39:32,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:32,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 366 [2024-11-07 15:39:32,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:35,747 INFO L124 PetriNetUnfolderBase]: 9520/33311 cut-off events. [2024-11-07 15:39:35,747 INFO L125 PetriNetUnfolderBase]: For 293/293 co-relation queries the response was YES. [2024-11-07 15:39:35,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48487 conditions, 33311 events. 9520/33311 cut-off events. For 293/293 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 400788 event pairs, 804 based on Foata normal form. 0/30737 useless extension candidates. Maximal degree in co-relation 3745. Up to 11851 conditions per place. [2024-11-07 15:39:35,958 INFO L140 encePairwiseOnDemand]: 360/366 looper letters, 150 selfloop transitions, 6 changer transitions 0/411 dead transitions. [2024-11-07 15:39:35,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 411 transitions, 1160 flow [2024-11-07 15:39:35,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:39:35,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:39:35,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1710 transitions. [2024-11-07 15:39:35,964 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7786885245901639 [2024-11-07 15:39:35,964 INFO L175 Difference]: Start difference. First operand has 320 places, 316 transitions, 658 flow. Second operand 6 states and 1710 transitions. [2024-11-07 15:39:35,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 411 transitions, 1160 flow [2024-11-07 15:39:35,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 411 transitions, 1158 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:39:35,972 INFO L231 Difference]: Finished difference. Result has 323 places, 315 transitions, 666 flow [2024-11-07 15:39:35,973 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=666, PETRI_PLACES=323, PETRI_TRANSITIONS=315} [2024-11-07 15:39:35,974 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -2 predicate places. [2024-11-07 15:39:35,975 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 315 transitions, 666 flow [2024-11-07 15:39:35,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 260.5) internal successors, (1563), 6 states have internal predecessors, (1563), 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 15:39:35,976 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:35,976 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:35,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 15:39:35,976 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:39:35,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:35,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1036572882, now seen corresponding path program 1 times [2024-11-07 15:39:35,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:35,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023198788] [2024-11-07 15:39:35,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:35,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:36,032 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 15:39:36,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:36,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023198788] [2024-11-07 15:39:36,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023198788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:36,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:36,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:39:36,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830906332] [2024-11-07 15:39:36,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:36,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:39:36,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:36,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:39:36,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:39:36,075 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 366 [2024-11-07 15:39:36,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 315 transitions, 666 flow. Second operand has 3 states, 3 states have (on average 253.66666666666666) internal successors, (761), 3 states have internal predecessors, (761), 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 15:39:36,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:36,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 366 [2024-11-07 15:39:36,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:45,614 INFO L124 PetriNetUnfolderBase]: 30961/107498 cut-off events. [2024-11-07 15:39:45,615 INFO L125 PetriNetUnfolderBase]: For 328/328 co-relation queries the response was YES. [2024-11-07 15:39:46,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156029 conditions, 107498 events. 30961/107498 cut-off events. For 328/328 co-relation queries the response was YES. Maximal size of possible extension queue 1586. Compared 1522073 event pairs, 10272 based on Foata normal form. 0/96175 useless extension candidates. Maximal degree in co-relation 150881. Up to 26160 conditions per place. [2024-11-07 15:39:46,359 INFO L140 encePairwiseOnDemand]: 341/366 looper letters, 108 selfloop transitions, 18 changer transitions 0/374 dead transitions. [2024-11-07 15:39:46,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 374 transitions, 1047 flow [2024-11-07 15:39:46,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:39:46,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:39:46,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 889 transitions. [2024-11-07 15:39:46,362 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8096539162112932 [2024-11-07 15:39:46,362 INFO L175 Difference]: Start difference. First operand has 323 places, 315 transitions, 666 flow. Second operand 3 states and 889 transitions. [2024-11-07 15:39:46,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 374 transitions, 1047 flow [2024-11-07 15:39:46,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 374 transitions, 1035 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:39:46,372 INFO L231 Difference]: Finished difference. Result has 322 places, 333 transitions, 812 flow [2024-11-07 15:39:46,373 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=812, PETRI_PLACES=322, PETRI_TRANSITIONS=333} [2024-11-07 15:39:46,373 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -3 predicate places. [2024-11-07 15:39:46,373 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 333 transitions, 812 flow [2024-11-07 15:39:46,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.66666666666666) internal successors, (761), 3 states have internal predecessors, (761), 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 15:39:46,374 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:46,374 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] [2024-11-07 15:39:46,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 15:39:46,375 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:39:46,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:46,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1625617232, now seen corresponding path program 1 times [2024-11-07 15:39:46,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:46,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160076486] [2024-11-07 15:39:46,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:46,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:46,414 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 15:39:46,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:46,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160076486] [2024-11-07 15:39:46,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160076486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:46,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:46,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:39:46,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484828161] [2024-11-07 15:39:46,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:46,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:39:46,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:46,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:39:46,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:39:46,457 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 366 [2024-11-07 15:39:46,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 333 transitions, 812 flow. Second operand has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 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 15:39:46,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:46,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 366 [2024-11-07 15:39:46,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:57,589 INFO L124 PetriNetUnfolderBase]: 30282/120182 cut-off events. [2024-11-07 15:39:57,589 INFO L125 PetriNetUnfolderBase]: For 20146/20658 co-relation queries the response was YES. [2024-11-07 15:39:57,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187018 conditions, 120182 events. 30282/120182 cut-off events. For 20146/20658 co-relation queries the response was YES. Maximal size of possible extension queue 1761. Compared 1796059 event pairs, 21308 based on Foata normal form. 148/109150 useless extension candidates. Maximal degree in co-relation 121149. Up to 42544 conditions per place. [2024-11-07 15:39:58,188 INFO L140 encePairwiseOnDemand]: 355/366 looper letters, 94 selfloop transitions, 18 changer transitions 0/377 dead transitions. [2024-11-07 15:39:58,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 377 transitions, 1174 flow [2024-11-07 15:39:58,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:39:58,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:39:58,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 881 transitions. [2024-11-07 15:39:58,191 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.802367941712204 [2024-11-07 15:39:58,191 INFO L175 Difference]: Start difference. First operand has 322 places, 333 transitions, 812 flow. Second operand 3 states and 881 transitions. [2024-11-07 15:39:58,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 377 transitions, 1174 flow [2024-11-07 15:39:58,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 377 transitions, 1124 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:39:58,392 INFO L231 Difference]: Finished difference. Result has 324 places, 349 transitions, 942 flow [2024-11-07 15:39:58,393 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=942, PETRI_PLACES=324, PETRI_TRANSITIONS=349} [2024-11-07 15:39:58,393 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -1 predicate places. [2024-11-07 15:39:58,393 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 349 transitions, 942 flow [2024-11-07 15:39:58,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 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 15:39:58,394 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:58,394 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] [2024-11-07 15:39:58,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 15:39:58,395 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:39:58,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:58,395 INFO L85 PathProgramCache]: Analyzing trace with hash 15925911, now seen corresponding path program 1 times [2024-11-07 15:39:58,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:58,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967764575] [2024-11-07 15:39:58,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:58,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:58,497 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 15:39:58,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:58,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967764575] [2024-11-07 15:39:58,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967764575] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:39:58,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104089144] [2024-11-07 15:39:58,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:58,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:39:58,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:39:58,501 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 15:39:58,503 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 15:39:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:58,618 INFO L255 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 15:39:58,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:39:58,698 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 15:39:58,700 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:39:58,756 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 15:39:58,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104089144] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:39:58,759 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:39:58,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-07 15:39:58,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241682315] [2024-11-07 15:39:58,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:39:58,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 15:39:58,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:58,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 15:39:58,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 15:39:58,849 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 366 [2024-11-07 15:39:58,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 349 transitions, 942 flow. Second operand has 10 states, 10 states have (on average 270.5) internal successors, (2705), 10 states have internal predecessors, (2705), 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 15:39:58,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:58,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 366 [2024-11-07 15:39:58,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:00,142 INFO L124 PetriNetUnfolderBase]: 2122/10913 cut-off events. [2024-11-07 15:40:00,142 INFO L125 PetriNetUnfolderBase]: For 1187/1231 co-relation queries the response was YES. [2024-11-07 15:40:00,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15695 conditions, 10913 events. 2122/10913 cut-off events. For 1187/1231 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 116915 event pairs, 238 based on Foata normal form. 297/10451 useless extension candidates. Maximal degree in co-relation 10357. Up to 1457 conditions per place. [2024-11-07 15:40:00,201 INFO L140 encePairwiseOnDemand]: 361/366 looper letters, 138 selfloop transitions, 7 changer transitions 0/340 dead transitions. [2024-11-07 15:40:00,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 340 transitions, 1116 flow [2024-11-07 15:40:00,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 15:40:00,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 15:40:00,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2559 transitions. [2024-11-07 15:40:00,207 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7768670309653917 [2024-11-07 15:40:00,208 INFO L175 Difference]: Start difference. First operand has 324 places, 349 transitions, 942 flow. Second operand 9 states and 2559 transitions. [2024-11-07 15:40:00,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 340 transitions, 1116 flow [2024-11-07 15:40:00,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 340 transitions, 1096 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:40:00,217 INFO L231 Difference]: Finished difference. Result has 226 places, 230 transitions, 600 flow [2024-11-07 15:40:00,217 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=600, PETRI_PLACES=226, PETRI_TRANSITIONS=230} [2024-11-07 15:40:00,217 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -99 predicate places. [2024-11-07 15:40:00,218 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 230 transitions, 600 flow [2024-11-07 15:40:00,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 270.5) internal successors, (2705), 10 states have internal predecessors, (2705), 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 15:40:00,219 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:00,219 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-07 15:40:00,231 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 15:40:00,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-07 15:40:00,420 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:40:00,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:00,420 INFO L85 PathProgramCache]: Analyzing trace with hash 710031724, now seen corresponding path program 1 times [2024-11-07 15:40:00,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:00,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276298657] [2024-11-07 15:40:00,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:00,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:00,482 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 15:40:00,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:00,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276298657] [2024-11-07 15:40:00,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276298657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:00,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:40:00,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:40:00,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466408046] [2024-11-07 15:40:00,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:00,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:40:00,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:00,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:40:00,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:40:00,537 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 366 [2024-11-07 15:40:00,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 230 transitions, 600 flow. Second operand has 3 states, 3 states have (on average 264.6666666666667) internal successors, (794), 3 states have internal predecessors, (794), 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 15:40:00,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:00,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 366 [2024-11-07 15:40:00,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:01,044 INFO L124 PetriNetUnfolderBase]: 494/3053 cut-off events. [2024-11-07 15:40:01,045 INFO L125 PetriNetUnfolderBase]: For 623/644 co-relation queries the response was YES. [2024-11-07 15:40:01,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4782 conditions, 3053 events. 494/3053 cut-off events. For 623/644 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 24434 event pairs, 318 based on Foata normal form. 7/2787 useless extension candidates. Maximal degree in co-relation 4704. Up to 933 conditions per place. [2024-11-07 15:40:01,063 INFO L140 encePairwiseOnDemand]: 358/366 looper letters, 60 selfloop transitions, 12 changer transitions 0/250 dead transitions. [2024-11-07 15:40:01,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 250 transitions, 800 flow [2024-11-07 15:40:01,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:40:01,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:40:01,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 843 transitions. [2024-11-07 15:40:01,066 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.76775956284153 [2024-11-07 15:40:01,066 INFO L175 Difference]: Start difference. First operand has 226 places, 230 transitions, 600 flow. Second operand 3 states and 843 transitions. [2024-11-07 15:40:01,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 250 transitions, 800 flow [2024-11-07 15:40:01,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 250 transitions, 785 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-07 15:40:01,073 INFO L231 Difference]: Finished difference. Result has 225 places, 238 transitions, 683 flow [2024-11-07 15:40:01,074 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=585, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=683, PETRI_PLACES=225, PETRI_TRANSITIONS=238} [2024-11-07 15:40:01,076 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -100 predicate places. [2024-11-07 15:40:01,076 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 238 transitions, 683 flow [2024-11-07 15:40:01,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.6666666666667) internal successors, (794), 3 states have internal predecessors, (794), 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 15:40:01,077 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:01,077 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] [2024-11-07 15:40:01,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 15:40:01,078 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:40:01,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:01,078 INFO L85 PathProgramCache]: Analyzing trace with hash 173796495, now seen corresponding path program 1 times [2024-11-07 15:40:01,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:01,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877242501] [2024-11-07 15:40:01,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:01,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:01,123 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 15:40:01,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:01,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877242501] [2024-11-07 15:40:01,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877242501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:01,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:40:01,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:40:01,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332630794] [2024-11-07 15:40:01,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:01,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:40:01,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:01,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:40:01,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:40:01,176 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 366 [2024-11-07 15:40:01,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 238 transitions, 683 flow. Second operand has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 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 15:40:01,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:01,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 366 [2024-11-07 15:40:01,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:01,538 INFO L124 PetriNetUnfolderBase]: 531/3151 cut-off events. [2024-11-07 15:40:01,539 INFO L125 PetriNetUnfolderBase]: For 1577/1642 co-relation queries the response was YES. [2024-11-07 15:40:01,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5376 conditions, 3151 events. 531/3151 cut-off events. For 1577/1642 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 25660 event pairs, 314 based on Foata normal form. 21/2934 useless extension candidates. Maximal degree in co-relation 5301. Up to 999 conditions per place. [2024-11-07 15:40:01,554 INFO L140 encePairwiseOnDemand]: 358/366 looper letters, 67 selfloop transitions, 12 changer transitions 0/259 dead transitions. [2024-11-07 15:40:01,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 259 transitions, 920 flow [2024-11-07 15:40:01,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:40:01,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:40:01,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 844 transitions. [2024-11-07 15:40:01,556 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7686703096539163 [2024-11-07 15:40:01,556 INFO L175 Difference]: Start difference. First operand has 225 places, 238 transitions, 683 flow. Second operand 3 states and 844 transitions. [2024-11-07 15:40:01,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 259 transitions, 920 flow [2024-11-07 15:40:01,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 259 transitions, 892 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:40:01,562 INFO L231 Difference]: Finished difference. Result has 227 places, 246 transitions, 769 flow [2024-11-07 15:40:01,563 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=659, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=769, PETRI_PLACES=227, PETRI_TRANSITIONS=246} [2024-11-07 15:40:01,563 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -98 predicate places. [2024-11-07 15:40:01,564 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 246 transitions, 769 flow [2024-11-07 15:40:01,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 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 15:40:01,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:01,565 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-07 15:40:01,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 15:40:01,565 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:40:01,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:01,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1442896868, now seen corresponding path program 1 times [2024-11-07 15:40:01,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:01,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107835845] [2024-11-07 15:40:01,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:01,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:40:01,591 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 15:40:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:40:01,611 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 15:40:01,611 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 15:40:01,611 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-11-07 15:40:01,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2024-11-07 15:40:01,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2024-11-07 15:40:01,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2024-11-07 15:40:01,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2024-11-07 15:40:01,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2024-11-07 15:40:01,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2024-11-07 15:40:01,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2024-11-07 15:40:01,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2024-11-07 15:40:01,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2024-11-07 15:40:01,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2024-11-07 15:40:01,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2024-11-07 15:40:01,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2024-11-07 15:40:01,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2024-11-07 15:40:01,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2024-11-07 15:40:01,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2024-11-07 15:40:01,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2024-11-07 15:40:01,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2024-11-07 15:40:01,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2024-11-07 15:40:01,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2024-11-07 15:40:01,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2024-11-07 15:40:01,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2024-11-07 15:40:01,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2024-11-07 15:40:01,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2024-11-07 15:40:01,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2024-11-07 15:40:01,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2024-11-07 15:40:01,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2024-11-07 15:40:01,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2024-11-07 15:40:01,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2024-11-07 15:40:01,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2024-11-07 15:40:01,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2024-11-07 15:40:01,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 15:40:01,616 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:01,617 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 15:40:01,617 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-07 15:40:01,661 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-07 15:40:01,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 407 places, 459 transitions, 945 flow [2024-11-07 15:40:01,750 INFO L124 PetriNetUnfolderBase]: 128/980 cut-off events. [2024-11-07 15:40:01,751 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-07 15:40:01,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1005 conditions, 980 events. 128/980 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5135 event pairs, 1 based on Foata normal form. 0/796 useless extension candidates. Maximal degree in co-relation 682. Up to 16 conditions per place. [2024-11-07 15:40:01,763 INFO L82 GeneralOperation]: Start removeDead. Operand has 407 places, 459 transitions, 945 flow [2024-11-07 15:40:01,775 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 407 places, 459 transitions, 945 flow [2024-11-07 15:40:01,775 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:40:01,776 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;@12ade366, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:40:01,776 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-07 15:40:01,778 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:40:01,779 INFO L124 PetriNetUnfolderBase]: 2/61 cut-off events. [2024-11-07 15:40:01,779 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:40:01,779 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:01,779 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:01,779 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-07 15:40:01,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:01,779 INFO L85 PathProgramCache]: Analyzing trace with hash -132417425, now seen corresponding path program 1 times [2024-11-07 15:40:01,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:01,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358121935] [2024-11-07 15:40:01,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:01,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:01,809 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 15:40:01,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:01,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358121935] [2024-11-07 15:40:01,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358121935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:01,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:40:01,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:40:01,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693381282] [2024-11-07 15:40:01,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:01,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:40:01,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:01,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:40:01,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:40:01,830 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 459 [2024-11-07 15:40:01,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 459 transitions, 945 flow. Second operand has 3 states, 3 states have (on average 340.0) internal successors, (1020), 3 states have internal predecessors, (1020), 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 15:40:01,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:01,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 459 [2024-11-07 15:40:01,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand