./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread/twostage_3.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/pthread/twostage_3.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', '1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8'] 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/pthread/twostage_3.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 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 15:16:04,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 15:16:04,312 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-07 15:16:04,316 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 15:16:04,316 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 15:16:04,331 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 15:16:04,331 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 15:16:04,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 15:16:04,332 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 15:16:04,332 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 15:16:04,332 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 15:16:04,332 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 15:16:04,332 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 15:16:04,332 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 15:16:04,332 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 15:16:04,333 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 15:16:04,333 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 15:16:04,333 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 15:16:04,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 15:16:04,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 15:16:04,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 15:16:04,333 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 15:16:04,333 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-07 15:16:04,333 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 15:16:04,333 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 15:16:04,333 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 15:16:04,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 15:16:04,334 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 15:16:04,334 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 15:16:04,334 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 15:16:04,334 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 15:16:04,334 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:16:04,334 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 15:16:04,334 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 15:16:04,334 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 15:16:04,334 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 15:16:04,334 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 15:16:04,335 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 15:16:04,335 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 15:16:04,335 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 15:16:04,335 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 15:16:04,335 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 -> 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 [2024-11-07 15:16:04,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 15:16:04,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 15:16:04,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 15:16:04,571 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 15:16:04,571 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 15:16:04,572 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/twostage_3.i [2024-11-07 15:16:05,730 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 15:16:06,002 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 15:16:06,003 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread/twostage_3.i [2024-11-07 15:16:06,025 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fc9d75755/3c367e12b2904c92b41fffa7239486f6/FLAG20de98f36 [2024-11-07 15:16:06,302 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fc9d75755/3c367e12b2904c92b41fffa7239486f6 [2024-11-07 15:16:06,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 15:16:06,305 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 15:16:06,306 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 15:16:06,306 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 15:16:06,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 15:16:06,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:16:06" (1/1) ... [2024-11-07 15:16:06,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a5a279a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:06, skipping insertion in model container [2024-11-07 15:16:06,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:16:06" (1/1) ... [2024-11-07 15:16:06,333 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 15:16:06,742 WARN L1674 CHandler]: Possible shadowing of function lock [2024-11-07 15:16:06,743 WARN L1674 CHandler]: Possible shadowing of function lock [2024-11-07 15:16:06,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:16:06,760 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 15:16:06,890 WARN L1674 CHandler]: Possible shadowing of function lock [2024-11-07 15:16:06,891 WARN L1674 CHandler]: Possible shadowing of function lock [2024-11-07 15:16:06,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:16:07,009 INFO L204 MainTranslator]: Completed translation [2024-11-07 15:16:07,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:07 WrapperNode [2024-11-07 15:16:07,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 15:16:07,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 15:16:07,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 15:16:07,018 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 15:16:07,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:07" (1/1) ... [2024-11-07 15:16:07,040 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:07" (1/1) ... [2024-11-07 15:16:07,069 INFO L138 Inliner]: procedures = 373, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 276 [2024-11-07 15:16:07,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 15:16:07,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 15:16:07,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 15:16:07,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 15:16:07,080 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:07" (1/1) ... [2024-11-07 15:16:07,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:07" (1/1) ... [2024-11-07 15:16:07,087 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:07" (1/1) ... [2024-11-07 15:16:07,087 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:07" (1/1) ... [2024-11-07 15:16:07,097 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:07" (1/1) ... [2024-11-07 15:16:07,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:07" (1/1) ... [2024-11-07 15:16:07,108 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:07" (1/1) ... [2024-11-07 15:16:07,109 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:07" (1/1) ... [2024-11-07 15:16:07,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 15:16:07,114 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 15:16:07,115 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 15:16:07,115 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 15:16:07,115 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:07" (1/1) ... [2024-11-07 15:16:07,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:16:07,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:16:07,144 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 15:16:07,147 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 15:16:07,164 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2024-11-07 15:16:07,165 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2024-11-07 15:16:07,165 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2024-11-07 15:16:07,165 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2024-11-07 15:16:07,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 15:16:07,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 15:16:07,165 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 15:16:07,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-07 15:16:07,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-07 15:16:07,165 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 15:16:07,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 15:16:07,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 15:16:07,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-07 15:16:07,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 15:16:07,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 15:16:07,167 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 15:16:07,276 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 15:16:07,277 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 15:16:07,583 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 15:16:07,584 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 15:16:07,606 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 15:16:07,606 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-07 15:16:07,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:16:07 BoogieIcfgContainer [2024-11-07 15:16:07,607 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 15:16:07,608 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 15:16:07,608 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 15:16:07,612 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 15:16:07,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:16:06" (1/3) ... [2024-11-07 15:16:07,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7f9a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:16:07, skipping insertion in model container [2024-11-07 15:16:07,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:07" (2/3) ... [2024-11-07 15:16:07,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7f9a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:16:07, skipping insertion in model container [2024-11-07 15:16:07,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:16:07" (3/3) ... [2024-11-07 15:16:07,613 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3.i [2024-11-07 15:16:07,624 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 15:16:07,625 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2024-11-07 15:16:07,625 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 15:16:07,687 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-07 15:16:07,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 353 places, 369 transitions, 758 flow [2024-11-07 15:16:07,856 INFO L124 PetriNetUnfolderBase]: 43/682 cut-off events. [2024-11-07 15:16:07,861 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-07 15:16:07,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 682 events. 43/682 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2924 event pairs, 0 based on Foata normal form. 0/554 useless extension candidates. Maximal degree in co-relation 354. Up to 8 conditions per place. [2024-11-07 15:16:07,870 INFO L82 GeneralOperation]: Start removeDead. Operand has 353 places, 369 transitions, 758 flow [2024-11-07 15:16:07,876 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 353 places, 369 transitions, 758 flow [2024-11-07 15:16:07,881 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:16:07,892 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;@1d720db3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:16:07,893 INFO L334 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2024-11-07 15:16:07,899 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:16:07,899 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-11-07 15:16:07,899 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:16:07,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:07,900 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] [2024-11-07 15:16:07,901 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-07 15:16:07,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:07,904 INFO L85 PathProgramCache]: Analyzing trace with hash 430025642, now seen corresponding path program 1 times [2024-11-07 15:16:07,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:07,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697192333] [2024-11-07 15:16:07,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:07,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:08,081 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 15:16:08,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:08,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697192333] [2024-11-07 15:16:08,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697192333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:08,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:08,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:08,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825363761] [2024-11-07 15:16:08,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:08,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:08,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:08,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:08,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:08,141 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 369 [2024-11-07 15:16:08,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 369 transitions, 758 flow. Second operand has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 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 15:16:08,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:08,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 369 [2024-11-07 15:16:08,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:08,616 INFO L124 PetriNetUnfolderBase]: 271/2560 cut-off events. [2024-11-07 15:16:08,616 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2024-11-07 15:16:08,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3072 conditions, 2560 events. 271/2560 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 20155 event pairs, 234 based on Foata normal form. 246/2367 useless extension candidates. Maximal degree in co-relation 2414. Up to 458 conditions per place. [2024-11-07 15:16:08,636 INFO L140 encePairwiseOnDemand]: 350/369 looper letters, 25 selfloop transitions, 1 changer transitions 8/349 dead transitions. [2024-11-07 15:16:08,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 349 transitions, 770 flow [2024-11-07 15:16:08,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:08,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:08,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1016 transitions. [2024-11-07 15:16:08,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9177958446251129 [2024-11-07 15:16:08,686 INFO L175 Difference]: Start difference. First operand has 353 places, 369 transitions, 758 flow. Second operand 3 states and 1016 transitions. [2024-11-07 15:16:08,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 349 transitions, 770 flow [2024-11-07 15:16:08,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 349 transitions, 770 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:16:08,700 INFO L231 Difference]: Finished difference. Result has 349 places, 341 transitions, 704 flow [2024-11-07 15:16:08,706 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=704, PETRI_PLACES=349, PETRI_TRANSITIONS=341} [2024-11-07 15:16:08,709 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -4 predicate places. [2024-11-07 15:16:08,710 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 341 transitions, 704 flow [2024-11-07 15:16:08,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 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 15:16:08,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:08,714 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] [2024-11-07 15:16:08,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 15:16:08,714 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-07 15:16:08,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:08,715 INFO L85 PathProgramCache]: Analyzing trace with hash 446020844, now seen corresponding path program 1 times [2024-11-07 15:16:08,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:08,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575913072] [2024-11-07 15:16:08,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:08,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:08,843 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 15:16:08,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:08,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575913072] [2024-11-07 15:16:08,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575913072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:08,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:08,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:08,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502605186] [2024-11-07 15:16:08,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:08,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:08,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:08,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:08,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:08,861 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 369 [2024-11-07 15:16:08,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 341 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 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 15:16:08,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:08,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 369 [2024-11-07 15:16:08,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:09,264 INFO L124 PetriNetUnfolderBase]: 152/2660 cut-off events. [2024-11-07 15:16:09,265 INFO L125 PetriNetUnfolderBase]: For 210/266 co-relation queries the response was YES. [2024-11-07 15:16:09,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3059 conditions, 2660 events. 152/2660 cut-off events. For 210/266 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 20635 event pairs, 116 based on Foata normal form. 0/2231 useless extension candidates. Maximal degree in co-relation 1499. Up to 147 conditions per place. [2024-11-07 15:16:09,313 INFO L140 encePairwiseOnDemand]: 367/369 looper letters, 35 selfloop transitions, 1 changer transitions 0/357 dead transitions. [2024-11-07 15:16:09,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 357 transitions, 826 flow [2024-11-07 15:16:09,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:09,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:09,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1039 transitions. [2024-11-07 15:16:09,317 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.938572719060524 [2024-11-07 15:16:09,318 INFO L175 Difference]: Start difference. First operand has 349 places, 341 transitions, 704 flow. Second operand 3 states and 1039 transitions. [2024-11-07 15:16:09,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 357 transitions, 826 flow [2024-11-07 15:16:09,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 357 transitions, 825 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:16:09,324 INFO L231 Difference]: Finished difference. Result has 341 places, 340 transitions, 703 flow [2024-11-07 15:16:09,324 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=703, PETRI_PLACES=341, PETRI_TRANSITIONS=340} [2024-11-07 15:16:09,325 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -12 predicate places. [2024-11-07 15:16:09,326 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 340 transitions, 703 flow [2024-11-07 15:16:09,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 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 15:16:09,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:09,326 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] [2024-11-07 15:16:09,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 15:16:09,327 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-07 15:16:09,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:09,327 INFO L85 PathProgramCache]: Analyzing trace with hash 941708073, now seen corresponding path program 1 times [2024-11-07 15:16:09,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:09,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279172384] [2024-11-07 15:16:09,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:09,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:09,359 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 15:16:09,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:09,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279172384] [2024-11-07 15:16:09,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279172384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:09,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:09,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:09,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044155777] [2024-11-07 15:16:09,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:09,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:09,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:09,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:09,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:09,381 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 369 [2024-11-07 15:16:09,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 340 transitions, 703 flow. Second operand has 3 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 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 15:16:09,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:09,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 369 [2024-11-07 15:16:09,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:09,777 INFO L124 PetriNetUnfolderBase]: 728/3855 cut-off events. [2024-11-07 15:16:09,777 INFO L125 PetriNetUnfolderBase]: For 234/290 co-relation queries the response was YES. [2024-11-07 15:16:09,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5294 conditions, 3855 events. 728/3855 cut-off events. For 234/290 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 32400 event pairs, 156 based on Foata normal form. 5/3415 useless extension candidates. Maximal degree in co-relation 2644. Up to 1033 conditions per place. [2024-11-07 15:16:09,798 INFO L140 encePairwiseOnDemand]: 353/369 looper letters, 37 selfloop transitions, 5 changer transitions 11/349 dead transitions. [2024-11-07 15:16:09,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 349 transitions, 821 flow [2024-11-07 15:16:09,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:09,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:09,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 994 transitions. [2024-11-07 15:16:09,800 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8979223125564589 [2024-11-07 15:16:09,801 INFO L175 Difference]: Start difference. First operand has 341 places, 340 transitions, 703 flow. Second operand 3 states and 994 transitions. [2024-11-07 15:16:09,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 349 transitions, 821 flow [2024-11-07 15:16:09,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 349 transitions, 820 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:16:09,806 INFO L231 Difference]: Finished difference. Result has 335 places, 325 transitions, 691 flow [2024-11-07 15:16:09,807 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=691, PETRI_PLACES=335, PETRI_TRANSITIONS=325} [2024-11-07 15:16:09,807 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -18 predicate places. [2024-11-07 15:16:09,807 INFO L471 AbstractCegarLoop]: Abstraction has has 335 places, 325 transitions, 691 flow [2024-11-07 15:16:09,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 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 15:16:09,808 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:09,808 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] [2024-11-07 15:16:09,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 15:16:09,808 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-07 15:16:09,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:09,809 INFO L85 PathProgramCache]: Analyzing trace with hash -713705851, now seen corresponding path program 1 times [2024-11-07 15:16:09,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:09,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412130422] [2024-11-07 15:16:09,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:09,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:09,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:09,840 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 15:16:09,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:09,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412130422] [2024-11-07 15:16:09,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412130422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:09,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:09,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:09,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875895848] [2024-11-07 15:16:09,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:09,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:09,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:09,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:09,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:09,856 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 369 [2024-11-07 15:16:09,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 325 transitions, 691 flow. Second operand has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 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 15:16:09,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:09,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 369 [2024-11-07 15:16:09,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:10,617 INFO L124 PetriNetUnfolderBase]: 892/6890 cut-off events. [2024-11-07 15:16:10,618 INFO L125 PetriNetUnfolderBase]: For 204/204 co-relation queries the response was YES. [2024-11-07 15:16:10,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8651 conditions, 6890 events. 892/6890 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 69743 event pairs, 772 based on Foata normal form. 0/5806 useless extension candidates. Maximal degree in co-relation 7876. Up to 1414 conditions per place. [2024-11-07 15:16:10,649 INFO L140 encePairwiseOnDemand]: 363/369 looper letters, 25 selfloop transitions, 2 changer transitions 0/322 dead transitions. [2024-11-07 15:16:10,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 322 transitions, 739 flow [2024-11-07 15:16:10,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:10,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:10,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1003 transitions. [2024-11-07 15:16:10,652 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9060523938572719 [2024-11-07 15:16:10,653 INFO L175 Difference]: Start difference. First operand has 335 places, 325 transitions, 691 flow. Second operand 3 states and 1003 transitions. [2024-11-07 15:16:10,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 322 transitions, 739 flow [2024-11-07 15:16:10,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 322 transitions, 739 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:16:10,659 INFO L231 Difference]: Finished difference. Result has 325 places, 322 transitions, 693 flow [2024-11-07 15:16:10,659 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=693, PETRI_PLACES=325, PETRI_TRANSITIONS=322} [2024-11-07 15:16:10,661 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -28 predicate places. [2024-11-07 15:16:10,661 INFO L471 AbstractCegarLoop]: Abstraction has has 325 places, 322 transitions, 693 flow [2024-11-07 15:16:10,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 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 15:16:10,661 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:10,662 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:16:10,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 15:16:10,662 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-07 15:16:10,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:10,662 INFO L85 PathProgramCache]: Analyzing trace with hash -915097583, now seen corresponding path program 1 times [2024-11-07 15:16:10,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:10,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387647945] [2024-11-07 15:16:10,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:10,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:10,709 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 15:16:10,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:10,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387647945] [2024-11-07 15:16:10,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387647945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:10,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:10,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:10,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037066422] [2024-11-07 15:16:10,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:10,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:10,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:10,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:10,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:10,735 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 369 [2024-11-07 15:16:10,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 322 transitions, 693 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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 15:16:10,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:10,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 369 [2024-11-07 15:16:10,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:11,209 INFO L124 PetriNetUnfolderBase]: 544/4903 cut-off events. [2024-11-07 15:16:11,210 INFO L125 PetriNetUnfolderBase]: For 204/204 co-relation queries the response was YES. [2024-11-07 15:16:11,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6099 conditions, 4903 events. 544/4903 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 47215 event pairs, 456 based on Foata normal form. 0/4156 useless extension candidates. Maximal degree in co-relation 5547. Up to 902 conditions per place. [2024-11-07 15:16:11,237 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 25 selfloop transitions, 2 changer transitions 0/321 dead transitions. [2024-11-07 15:16:11,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 321 transitions, 745 flow [2024-11-07 15:16:11,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:11,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:11,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1006 transitions. [2024-11-07 15:16:11,239 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9087624209575429 [2024-11-07 15:16:11,239 INFO L175 Difference]: Start difference. First operand has 325 places, 322 transitions, 693 flow. Second operand 3 states and 1006 transitions. [2024-11-07 15:16:11,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 321 transitions, 745 flow [2024-11-07 15:16:11,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 321 transitions, 745 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:16:11,245 INFO L231 Difference]: Finished difference. Result has 326 places, 321 transitions, 695 flow [2024-11-07 15:16:11,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=691, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=695, PETRI_PLACES=326, PETRI_TRANSITIONS=321} [2024-11-07 15:16:11,246 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -27 predicate places. [2024-11-07 15:16:11,246 INFO L471 AbstractCegarLoop]: Abstraction has has 326 places, 321 transitions, 695 flow [2024-11-07 15:16:11,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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 15:16:11,247 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:11,248 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] [2024-11-07 15:16:11,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 15:16:11,248 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-07 15:16:11,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:11,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1152647961, now seen corresponding path program 1 times [2024-11-07 15:16:11,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:11,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544902646] [2024-11-07 15:16:11,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:11,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:11,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:11,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:16:11,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:11,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544902646] [2024-11-07 15:16:11,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544902646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:11,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:11,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:16:11,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893148856] [2024-11-07 15:16:11,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:11,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:11,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:11,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:11,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:11,307 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 369 [2024-11-07 15:16:11,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 321 transitions, 695 flow. Second operand has 3 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 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 15:16:11,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:11,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 369 [2024-11-07 15:16:11,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:11,586 INFO L124 PetriNetUnfolderBase]: 344/3671 cut-off events. [2024-11-07 15:16:11,587 INFO L125 PetriNetUnfolderBase]: For 210/266 co-relation queries the response was YES. [2024-11-07 15:16:11,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4506 conditions, 3671 events. 344/3671 cut-off events. For 210/266 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 33494 event pairs, 280 based on Foata normal form. 2/3100 useless extension candidates. Maximal degree in co-relation 4113. Up to 588 conditions per place. [2024-11-07 15:16:11,605 INFO L140 encePairwiseOnDemand]: 367/369 looper letters, 24 selfloop transitions, 0 changer transitions 1/320 dead transitions. [2024-11-07 15:16:11,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 320 transitions, 740 flow [2024-11-07 15:16:11,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:11,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:11,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1007 transitions. [2024-11-07 15:16:11,607 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9096657633242999 [2024-11-07 15:16:11,607 INFO L175 Difference]: Start difference. First operand has 326 places, 321 transitions, 695 flow. Second operand 3 states and 1007 transitions. [2024-11-07 15:16:11,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 320 transitions, 740 flow [2024-11-07 15:16:11,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 320 transitions, 732 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-07 15:16:11,612 INFO L231 Difference]: Finished difference. Result has 325 places, 319 transitions, 682 flow [2024-11-07 15:16:11,612 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=682, PETRI_PLACES=325, PETRI_TRANSITIONS=319} [2024-11-07 15:16:11,613 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -28 predicate places. [2024-11-07 15:16:11,613 INFO L471 AbstractCegarLoop]: Abstraction has has 325 places, 319 transitions, 682 flow [2024-11-07 15:16:11,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 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 15:16:11,613 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:11,613 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:16:11,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 15:16:11,614 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-07 15:16:11,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:11,614 INFO L85 PathProgramCache]: Analyzing trace with hash -536794802, now seen corresponding path program 1 times [2024-11-07 15:16:11,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:11,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238703431] [2024-11-07 15:16:11,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:11,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:11,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:11,655 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 15:16:11,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:11,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238703431] [2024-11-07 15:16:11,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238703431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:11,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:11,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:11,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97544130] [2024-11-07 15:16:11,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:11,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:11,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:11,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:11,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:11,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 369 [2024-11-07 15:16:11,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 319 transitions, 682 flow. Second operand has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 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 15:16:11,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:11,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 369 [2024-11-07 15:16:11,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:11,962 INFO L124 PetriNetUnfolderBase]: 154/2608 cut-off events. [2024-11-07 15:16:11,962 INFO L125 PetriNetUnfolderBase]: For 210/266 co-relation queries the response was YES. [2024-11-07 15:16:11,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3110 conditions, 2608 events. 154/2608 cut-off events. For 210/266 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 20378 event pairs, 116 based on Foata normal form. 0/2260 useless extension candidates. Maximal degree in co-relation 3103. Up to 147 conditions per place. [2024-11-07 15:16:11,979 INFO L140 encePairwiseOnDemand]: 367/369 looper letters, 35 selfloop transitions, 1 changer transitions 0/335 dead transitions. [2024-11-07 15:16:11,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 335 transitions, 804 flow [2024-11-07 15:16:11,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:11,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:11,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1039 transitions. [2024-11-07 15:16:11,982 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.938572719060524 [2024-11-07 15:16:11,982 INFO L175 Difference]: Start difference. First operand has 325 places, 319 transitions, 682 flow. Second operand 3 states and 1039 transitions. [2024-11-07 15:16:11,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 335 transitions, 804 flow [2024-11-07 15:16:11,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 335 transitions, 802 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-07 15:16:11,986 INFO L231 Difference]: Finished difference. Result has 324 places, 318 transitions, 680 flow [2024-11-07 15:16:11,987 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=324, PETRI_TRANSITIONS=318} [2024-11-07 15:16:11,987 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -29 predicate places. [2024-11-07 15:16:11,987 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 318 transitions, 680 flow [2024-11-07 15:16:11,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 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 15:16:11,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:11,988 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:16:11,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 15:16:11,988 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-07 15:16:11,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:11,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1207613635, now seen corresponding path program 1 times [2024-11-07 15:16:11,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:11,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866523840] [2024-11-07 15:16:11,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:11,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:12,013 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 15:16:12,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:12,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866523840] [2024-11-07 15:16:12,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866523840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:12,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:12,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:12,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509966956] [2024-11-07 15:16:12,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:12,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:12,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:12,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:12,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:12,052 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 369 [2024-11-07 15:16:12,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 318 transitions, 680 flow. Second operand has 3 states, 3 states have (on average 323.3333333333333) internal successors, (970), 3 states have internal predecessors, (970), 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 15:16:12,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:12,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 369 [2024-11-07 15:16:12,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:12,609 INFO L124 PetriNetUnfolderBase]: 728/5154 cut-off events. [2024-11-07 15:16:12,609 INFO L125 PetriNetUnfolderBase]: For 302/452 co-relation queries the response was YES. [2024-11-07 15:16:12,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6720 conditions, 5154 events. 728/5154 cut-off events. For 302/452 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 51509 event pairs, 644 based on Foata normal form. 0/4296 useless extension candidates. Maximal degree in co-relation 6713. Up to 1238 conditions per place. [2024-11-07 15:16:12,659 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 29 selfloop transitions, 2 changer transitions 0/317 dead transitions. [2024-11-07 15:16:12,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 317 transitions, 740 flow [2024-11-07 15:16:12,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:12,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:12,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 998 transitions. [2024-11-07 15:16:12,661 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9015356820234869 [2024-11-07 15:16:12,661 INFO L175 Difference]: Start difference. First operand has 324 places, 318 transitions, 680 flow. Second operand 3 states and 998 transitions. [2024-11-07 15:16:12,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 317 transitions, 740 flow [2024-11-07 15:16:12,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 317 transitions, 739 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:16:12,666 INFO L231 Difference]: Finished difference. Result has 324 places, 317 transitions, 681 flow [2024-11-07 15:16:12,667 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=681, PETRI_PLACES=324, PETRI_TRANSITIONS=317} [2024-11-07 15:16:12,667 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -29 predicate places. [2024-11-07 15:16:12,667 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 317 transitions, 681 flow [2024-11-07 15:16:12,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 323.3333333333333) internal successors, (970), 3 states have internal predecessors, (970), 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 15:16:12,668 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:12,668 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] [2024-11-07 15:16:12,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 15:16:12,668 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-07 15:16:12,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:12,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1681384648, now seen corresponding path program 1 times [2024-11-07 15:16:12,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:12,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545164131] [2024-11-07 15:16:12,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:12,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:12,694 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 15:16:12,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:12,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545164131] [2024-11-07 15:16:12,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545164131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:12,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:12,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:12,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829763932] [2024-11-07 15:16:12,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:12,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:12,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:12,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:12,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:12,714 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 369 [2024-11-07 15:16:12,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 317 transitions, 681 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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 15:16:12,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:12,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 369 [2024-11-07 15:16:12,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:13,133 INFO L124 PetriNetUnfolderBase]: 710/5735 cut-off events. [2024-11-07 15:16:13,133 INFO L125 PetriNetUnfolderBase]: For 204/204 co-relation queries the response was YES. [2024-11-07 15:16:13,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7195 conditions, 5735 events. 710/5735 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 57143 event pairs, 608 based on Foata normal form. 0/4836 useless extension candidates. Maximal degree in co-relation 7188. Up to 1136 conditions per place. [2024-11-07 15:16:13,165 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 25 selfloop transitions, 2 changer transitions 0/316 dead transitions. [2024-11-07 15:16:13,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 316 transitions, 733 flow [2024-11-07 15:16:13,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:13,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:13,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1006 transitions. [2024-11-07 15:16:13,172 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9087624209575429 [2024-11-07 15:16:13,173 INFO L175 Difference]: Start difference. First operand has 324 places, 317 transitions, 681 flow. Second operand 3 states and 1006 transitions. [2024-11-07 15:16:13,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 316 transitions, 733 flow [2024-11-07 15:16:13,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 316 transitions, 729 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:16:13,177 INFO L231 Difference]: Finished difference. Result has 323 places, 316 transitions, 679 flow [2024-11-07 15:16:13,178 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=675, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=679, PETRI_PLACES=323, PETRI_TRANSITIONS=316} [2024-11-07 15:16:13,178 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -30 predicate places. [2024-11-07 15:16:13,178 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 316 transitions, 679 flow [2024-11-07 15:16:13,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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 15:16:13,179 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:13,179 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:16:13,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 15:16:13,179 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-07 15:16:13,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:13,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1684369097, now seen corresponding path program 1 times [2024-11-07 15:16:13,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:13,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205629179] [2024-11-07 15:16:13,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:13,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:13,221 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 15:16:13,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:13,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205629179] [2024-11-07 15:16:13,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205629179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:13,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:13,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:13,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853292678] [2024-11-07 15:16:13,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:13,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:13,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:13,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:13,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:13,248 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 369 [2024-11-07 15:16:13,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 316 transitions, 679 flow. Second operand has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 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 15:16:13,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:13,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 369 [2024-11-07 15:16:13,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:13,650 INFO L124 PetriNetUnfolderBase]: 548/4443 cut-off events. [2024-11-07 15:16:13,650 INFO L125 PetriNetUnfolderBase]: For 262/328 co-relation queries the response was YES. [2024-11-07 15:16:13,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5669 conditions, 4443 events. 548/4443 cut-off events. For 262/328 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 43155 event pairs, 472 based on Foata normal form. 0/3780 useless extension candidates. Maximal degree in co-relation 5662. Up to 932 conditions per place. [2024-11-07 15:16:13,677 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 26 selfloop transitions, 2 changer transitions 0/315 dead transitions. [2024-11-07 15:16:13,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 315 transitions, 733 flow [2024-11-07 15:16:13,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:13,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:13,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1004 transitions. [2024-11-07 15:16:13,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9069557362240289 [2024-11-07 15:16:13,679 INFO L175 Difference]: Start difference. First operand has 323 places, 316 transitions, 679 flow. Second operand 3 states and 1004 transitions. [2024-11-07 15:16:13,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 315 transitions, 733 flow [2024-11-07 15:16:13,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 315 transitions, 729 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:16:13,683 INFO L231 Difference]: Finished difference. Result has 322 places, 315 transitions, 677 flow [2024-11-07 15:16:13,684 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=677, PETRI_PLACES=322, PETRI_TRANSITIONS=315} [2024-11-07 15:16:13,686 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -31 predicate places. [2024-11-07 15:16:13,686 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 315 transitions, 677 flow [2024-11-07 15:16:13,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 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 15:16:13,687 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:13,687 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] [2024-11-07 15:16:13,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 15:16:13,687 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-07 15:16:13,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:13,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1005281314, now seen corresponding path program 1 times [2024-11-07 15:16:13,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:13,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589327995] [2024-11-07 15:16:13,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:13,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:13,717 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 15:16:13,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:13,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589327995] [2024-11-07 15:16:13,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589327995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:13,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:13,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:13,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805570897] [2024-11-07 15:16:13,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:13,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:13,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:13,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:13,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:13,743 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 369 [2024-11-07 15:16:13,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 315 transitions, 677 flow. Second operand has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 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 15:16:13,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:13,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 369 [2024-11-07 15:16:13,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:14,136 INFO L124 PetriNetUnfolderBase]: 570/5505 cut-off events. [2024-11-07 15:16:14,136 INFO L125 PetriNetUnfolderBase]: For 490/1428 co-relation queries the response was YES. [2024-11-07 15:16:14,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7038 conditions, 5505 events. 570/5505 cut-off events. For 490/1428 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 53460 event pairs, 436 based on Foata normal form. 0/4874 useless extension candidates. Maximal degree in co-relation 7031. Up to 1006 conditions per place. [2024-11-07 15:16:14,177 INFO L140 encePairwiseOnDemand]: 360/369 looper letters, 33 selfloop transitions, 1 changer transitions 0/307 dead transitions. [2024-11-07 15:16:14,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 307 transitions, 729 flow [2024-11-07 15:16:14,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:14,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:14,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 978 transitions. [2024-11-07 15:16:14,181 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8834688346883469 [2024-11-07 15:16:14,181 INFO L175 Difference]: Start difference. First operand has 322 places, 315 transitions, 677 flow. Second operand 3 states and 978 transitions. [2024-11-07 15:16:14,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 307 transitions, 729 flow [2024-11-07 15:16:14,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 307 transitions, 725 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:16:14,186 INFO L231 Difference]: Finished difference. Result has 314 places, 307 transitions, 659 flow [2024-11-07 15:16:14,187 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=659, PETRI_PLACES=314, PETRI_TRANSITIONS=307} [2024-11-07 15:16:14,187 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -39 predicate places. [2024-11-07 15:16:14,187 INFO L471 AbstractCegarLoop]: Abstraction has has 314 places, 307 transitions, 659 flow [2024-11-07 15:16:14,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 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 15:16:14,188 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:14,188 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] [2024-11-07 15:16:14,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 15:16:14,188 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-07 15:16:14,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:14,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1534519347, now seen corresponding path program 1 times [2024-11-07 15:16:14,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:14,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61954431] [2024-11-07 15:16:14,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:14,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:14,214 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 15:16:14,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:14,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61954431] [2024-11-07 15:16:14,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61954431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:14,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:14,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:14,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420288538] [2024-11-07 15:16:14,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:14,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:14,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:14,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:14,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:14,231 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 369 [2024-11-07 15:16:14,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 307 transitions, 659 flow. Second operand has 3 states, 3 states have (on average 322.0) internal successors, (966), 3 states have internal predecessors, (966), 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 15:16:14,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:14,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 369 [2024-11-07 15:16:14,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:14,496 INFO L124 PetriNetUnfolderBase]: 382/3569 cut-off events. [2024-11-07 15:16:14,496 INFO L125 PetriNetUnfolderBase]: For 446/522 co-relation queries the response was YES. [2024-11-07 15:16:14,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4652 conditions, 3569 events. 382/3569 cut-off events. For 446/522 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 30324 event pairs, 276 based on Foata normal form. 0/3238 useless extension candidates. Maximal degree in co-relation 4645. Up to 682 conditions per place. [2024-11-07 15:16:14,518 INFO L140 encePairwiseOnDemand]: 363/369 looper letters, 27 selfloop transitions, 1 changer transitions 0/302 dead transitions. [2024-11-07 15:16:14,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 302 transitions, 705 flow [2024-11-07 15:16:14,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:14,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:14,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 996 transitions. [2024-11-07 15:16:14,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8997289972899729 [2024-11-07 15:16:14,521 INFO L175 Difference]: Start difference. First operand has 314 places, 307 transitions, 659 flow. Second operand 3 states and 996 transitions. [2024-11-07 15:16:14,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 302 transitions, 705 flow [2024-11-07 15:16:14,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 302 transitions, 704 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:16:14,524 INFO L231 Difference]: Finished difference. Result has 310 places, 302 transitions, 650 flow [2024-11-07 15:16:14,525 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=650, PETRI_PLACES=310, PETRI_TRANSITIONS=302} [2024-11-07 15:16:14,525 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -43 predicate places. [2024-11-07 15:16:14,525 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 302 transitions, 650 flow [2024-11-07 15:16:14,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 322.0) internal successors, (966), 3 states have internal predecessors, (966), 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 15:16:14,526 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:14,526 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 15:16:14,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 15:16:14,526 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-07 15:16:14,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:14,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1987150306, now seen corresponding path program 1 times [2024-11-07 15:16:14,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:14,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004835484] [2024-11-07 15:16:14,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:14,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:14,916 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 15:16:14,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:14,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004835484] [2024-11-07 15:16:14,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004835484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:14,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:14,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:16:14,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919634044] [2024-11-07 15:16:14,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:14,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:16:14,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:14,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:16:14,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:16:15,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 369 [2024-11-07 15:16:15,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 302 transitions, 650 flow. Second operand has 6 states, 6 states have (on average 303.6666666666667) internal successors, (1822), 6 states have internal predecessors, (1822), 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 15:16:15,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:15,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 369 [2024-11-07 15:16:15,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:16,601 INFO L124 PetriNetUnfolderBase]: 3564/20549 cut-off events. [2024-11-07 15:16:16,601 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2024-11-07 15:16:16,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26964 conditions, 20549 events. 3564/20549 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 259523 event pairs, 3146 based on Foata normal form. 0/18494 useless extension candidates. Maximal degree in co-relation 26957. Up to 5453 conditions per place. [2024-11-07 15:16:16,681 INFO L140 encePairwiseOnDemand]: 362/369 looper letters, 69 selfloop transitions, 6 changer transitions 0/325 dead transitions. [2024-11-07 15:16:16,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 325 transitions, 846 flow [2024-11-07 15:16:16,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:16:16,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:16:16,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1888 transitions. [2024-11-07 15:16:16,684 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8527551942186089 [2024-11-07 15:16:16,684 INFO L175 Difference]: Start difference. First operand has 310 places, 302 transitions, 650 flow. Second operand 6 states and 1888 transitions. [2024-11-07 15:16:16,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 325 transitions, 846 flow [2024-11-07 15:16:16,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 325 transitions, 845 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:16:16,691 INFO L231 Difference]: Finished difference. Result has 313 places, 301 transitions, 659 flow [2024-11-07 15:16:16,691 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=659, PETRI_PLACES=313, PETRI_TRANSITIONS=301} [2024-11-07 15:16:16,692 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -40 predicate places. [2024-11-07 15:16:16,692 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 301 transitions, 659 flow [2024-11-07 15:16:16,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 303.6666666666667) internal successors, (1822), 6 states have internal predecessors, (1822), 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 15:16:16,693 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:16,693 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:16:16,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 15:16:16,693 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-07 15:16:16,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:16,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1365917146, now seen corresponding path program 1 times [2024-11-07 15:16:16,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:16,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660449327] [2024-11-07 15:16:16,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:16,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:16,805 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 15:16:16,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:16,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660449327] [2024-11-07 15:16:16,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660449327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:16,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:16,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 15:16:16,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565256446] [2024-11-07 15:16:16,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:16,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 15:16:16,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:16,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 15:16:16,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 15:16:16,878 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 369 [2024-11-07 15:16:16,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 301 transitions, 659 flow. Second operand has 4 states, 4 states have (on average 323.5) internal successors, (1294), 4 states have internal predecessors, (1294), 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 15:16:16,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:16,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 369 [2024-11-07 15:16:16,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:17,505 INFO L124 PetriNetUnfolderBase]: 842/6391 cut-off events. [2024-11-07 15:16:17,505 INFO L125 PetriNetUnfolderBase]: For 161/161 co-relation queries the response was YES. [2024-11-07 15:16:17,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8134 conditions, 6391 events. 842/6391 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 64485 event pairs, 643 based on Foata normal form. 50/5862 useless extension candidates. Maximal degree in co-relation 8127. Up to 913 conditions per place. [2024-11-07 15:16:17,537 INFO L140 encePairwiseOnDemand]: 356/369 looper letters, 64 selfloop transitions, 11 changer transitions 1/345 dead transitions. [2024-11-07 15:16:17,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 345 transitions, 923 flow [2024-11-07 15:16:17,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 15:16:17,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 15:16:17,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1366 transitions. [2024-11-07 15:16:17,539 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9254742547425474 [2024-11-07 15:16:17,539 INFO L175 Difference]: Start difference. First operand has 313 places, 301 transitions, 659 flow. Second operand 4 states and 1366 transitions. [2024-11-07 15:16:17,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 345 transitions, 923 flow [2024-11-07 15:16:17,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 345 transitions, 911 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:16:17,543 INFO L231 Difference]: Finished difference. Result has 313 places, 310 transitions, 729 flow [2024-11-07 15:16:17,544 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=729, PETRI_PLACES=313, PETRI_TRANSITIONS=310} [2024-11-07 15:16:17,544 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -40 predicate places. [2024-11-07 15:16:17,544 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 310 transitions, 729 flow [2024-11-07 15:16:17,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 323.5) internal successors, (1294), 4 states have internal predecessors, (1294), 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 15:16:17,545 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:17,545 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:16:17,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 15:16:17,545 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting funcAErr1ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-07 15:16:17,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:17,546 INFO L85 PathProgramCache]: Analyzing trace with hash -67031606, now seen corresponding path program 1 times [2024-11-07 15:16:17,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:17,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93008691] [2024-11-07 15:16:17,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:17,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:17,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:16:17,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:17,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93008691] [2024-11-07 15:16:17,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93008691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:17,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:17,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:17,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293067617] [2024-11-07 15:16:17,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:17,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:17,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:17,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:17,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:17,600 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 369 [2024-11-07 15:16:17,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 310 transitions, 729 flow. Second operand has 3 states, 3 states have (on average 330.6666666666667) internal successors, (992), 3 states have internal predecessors, (992), 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 15:16:17,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:17,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 369 [2024-11-07 15:16:17,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:17,939 INFO L124 PetriNetUnfolderBase]: 306/3163 cut-off events. [2024-11-07 15:16:17,939 INFO L125 PetriNetUnfolderBase]: For 297/481 co-relation queries the response was YES. [2024-11-07 15:16:17,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4220 conditions, 3163 events. 306/3163 cut-off events. For 297/481 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 26629 event pairs, 204 based on Foata normal form. 2/2898 useless extension candidates. Maximal degree in co-relation 4211. Up to 523 conditions per place. [2024-11-07 15:16:17,954 INFO L140 encePairwiseOnDemand]: 363/369 looper letters, 32 selfloop transitions, 5 changer transitions 0/322 dead transitions. [2024-11-07 15:16:17,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 322 transitions, 836 flow [2024-11-07 15:16:17,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:17,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:17,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1025 transitions. [2024-11-07 15:16:17,956 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9259259259259259 [2024-11-07 15:16:17,956 INFO L175 Difference]: Start difference. First operand has 313 places, 310 transitions, 729 flow. Second operand 3 states and 1025 transitions. [2024-11-07 15:16:17,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 322 transitions, 836 flow [2024-11-07 15:16:17,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 322 transitions, 834 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:16:17,960 INFO L231 Difference]: Finished difference. Result has 316 places, 314 transitions, 765 flow [2024-11-07 15:16:17,961 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=765, PETRI_PLACES=316, PETRI_TRANSITIONS=314} [2024-11-07 15:16:17,961 INFO L277 CegarLoopForPetriNet]: 353 programPoint places, -37 predicate places. [2024-11-07 15:16:17,961 INFO L471 AbstractCegarLoop]: Abstraction has has 316 places, 314 transitions, 765 flow [2024-11-07 15:16:17,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 330.6666666666667) internal successors, (992), 3 states have internal predecessors, (992), 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 15:16:17,962 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:17,962 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:16:17,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 15:16:17,962 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-07 15:16:17,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:17,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1639105714, now seen corresponding path program 1 times [2024-11-07 15:16:17,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:17,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387330989] [2024-11-07 15:16:17,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:17,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:16:17,985 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 15:16:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:16:18,020 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 15:16:18,021 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 15:16:18,022 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2024-11-07 15:16:18,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr2ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr3ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr4ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr5ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr6ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr7ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr8ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2024-11-07 15:16:18,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr1ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr2ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr3ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr4ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr5ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr6ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr7ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr8ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr0ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr1ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr2ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr3ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr4ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr5ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr6ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr7ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr8ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr1ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2024-11-07 15:16:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr2ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2024-11-07 15:16:18,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr3ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2024-11-07 15:16:18,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr4ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2024-11-07 15:16:18,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr5ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2024-11-07 15:16:18,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr6ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2024-11-07 15:16:18,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr7ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2024-11-07 15:16:18,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr8ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2024-11-07 15:16:18,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 15:16:18,028 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:16:18,029 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 15:16:18,029 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-07 15:16:18,060 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-07 15:16:18,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 463 places, 482 transitions, 1008 flow [2024-11-07 15:16:18,232 INFO L124 PetriNetUnfolderBase]: 163/1982 cut-off events. [2024-11-07 15:16:18,232 INFO L125 PetriNetUnfolderBase]: For 72/74 co-relation queries the response was YES. [2024-11-07 15:16:18,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2071 conditions, 1982 events. 163/1982 cut-off events. For 72/74 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 12454 event pairs, 1 based on Foata normal form. 0/1619 useless extension candidates. Maximal degree in co-relation 1175. Up to 32 conditions per place. [2024-11-07 15:16:18,256 INFO L82 GeneralOperation]: Start removeDead. Operand has 463 places, 482 transitions, 1008 flow [2024-11-07 15:16:18,268 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 463 places, 482 transitions, 1008 flow [2024-11-07 15:16:18,269 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:16:18,269 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;@1d720db3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:16:18,269 INFO L334 AbstractCegarLoop]: Starting to check reachability of 83 error locations. [2024-11-07 15:16:18,271 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:16:18,271 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-11-07 15:16:18,271 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:16:18,271 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:18,271 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] [2024-11-07 15:16:18,271 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-11-07 15:16:18,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:18,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2114103926, now seen corresponding path program 1 times [2024-11-07 15:16:18,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:18,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642752167] [2024-11-07 15:16:18,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:18,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:18,283 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 15:16:18,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:18,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642752167] [2024-11-07 15:16:18,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642752167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:18,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:18,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:18,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684219417] [2024-11-07 15:16:18,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:18,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:18,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:18,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:18,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:18,295 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 482 [2024-11-07 15:16:18,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 482 transitions, 1008 flow. Second operand has 3 states, 3 states have (on average 417.6666666666667) internal successors, (1253), 3 states have internal predecessors, (1253), 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 15:16:18,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:18,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 482 [2024-11-07 15:16:18,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:38,388 INFO L124 PetriNetUnfolderBase]: 33456/146489 cut-off events. [2024-11-07 15:16:38,388 INFO L125 PetriNetUnfolderBase]: For 12029/12029 co-relation queries the response was YES. [2024-11-07 15:16:39,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194932 conditions, 146489 events. 33456/146489 cut-off events. For 12029/12029 co-relation queries the response was YES. Maximal size of possible extension queue 2630. Compared 2357262 event pairs, 30562 based on Foata normal form. 17228/140824 useless extension candidates. Maximal degree in co-relation 160782. Up to 43633 conditions per place. [2024-11-07 15:16:40,846 INFO L140 encePairwiseOnDemand]: 461/482 looper letters, 42 selfloop transitions, 1 changer transitions 8/458 dead transitions. [2024-11-07 15:16:40,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 458 transitions, 1046 flow [2024-11-07 15:16:40,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:40,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:40,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2024-11-07 15:16:40,848 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9087136929460581 [2024-11-07 15:16:40,849 INFO L175 Difference]: Start difference. First operand has 463 places, 482 transitions, 1008 flow. Second operand 3 states and 1314 transitions. [2024-11-07 15:16:40,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 458 transitions, 1046 flow [2024-11-07 15:16:40,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 458 transitions, 1046 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:16:40,885 INFO L231 Difference]: Finished difference. Result has 457 places, 450 transitions, 946 flow [2024-11-07 15:16:40,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=482, PETRI_DIFFERENCE_MINUEND_FLOW=960, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=946, PETRI_PLACES=457, PETRI_TRANSITIONS=450} [2024-11-07 15:16:40,885 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -6 predicate places. [2024-11-07 15:16:40,885 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 450 transitions, 946 flow [2024-11-07 15:16:40,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 417.6666666666667) internal successors, (1253), 3 states have internal predecessors, (1253), 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 15:16:40,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:40,886 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] [2024-11-07 15:16:40,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 15:16:40,889 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2024-11-07 15:16:40,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:40,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1112583956, now seen corresponding path program 1 times [2024-11-07 15:16:40,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:40,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498775462] [2024-11-07 15:16:40,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:40,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:40,929 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 15:16:40,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:40,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498775462] [2024-11-07 15:16:40,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498775462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:40,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:40,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:40,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447302005] [2024-11-07 15:16:40,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:40,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:40,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:40,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:40,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:40,937 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 427 out of 482 [2024-11-07 15:16:40,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 450 transitions, 946 flow. Second operand has 3 states, 3 states have (on average 427.6666666666667) internal successors, (1283), 3 states have internal predecessors, (1283), 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 15:16:40,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:40,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 427 of 482 [2024-11-07 15:16:40,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand