./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-atomic/read_write_lock-2b.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-atomic/read_write_lock-2b.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', '7b71c781c26c072fdf5838e0877462128517513c3df1f3bde9f2474cb4533ecb'] 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-atomic/read_write_lock-2b.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 7b71c781c26c072fdf5838e0877462128517513c3df1f3bde9f2474cb4533ecb --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 15:16:20,059 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 15:16:20,127 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-07 15:16:20,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 15:16:20,132 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 15:16:20,150 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 15:16:20,151 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 15:16:20,151 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 15:16:20,151 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 15:16:20,151 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 15:16:20,151 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 15:16:20,152 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 15:16:20,152 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 15:16:20,152 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 15:16:20,152 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 15:16:20,152 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 15:16:20,152 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 15:16:20,152 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 15:16:20,152 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 15:16:20,153 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 15:16:20,153 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 15:16:20,153 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 15:16:20,153 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-07 15:16:20,153 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 15:16:20,153 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 15:16:20,153 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 15:16:20,154 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 15:16:20,154 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 15:16:20,154 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 15:16:20,154 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 15:16:20,154 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 15:16:20,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:16:20,154 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 15:16:20,155 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 15:16:20,155 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 15:16:20,155 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 15:16:20,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 15:16:20,155 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 15:16:20,155 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 15:16:20,155 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 15:16:20,155 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 15:16:20,155 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 -> 7b71c781c26c072fdf5838e0877462128517513c3df1f3bde9f2474cb4533ecb [2024-11-07 15:16:20,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 15:16:20,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 15:16:20,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 15:16:20,457 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 15:16:20,457 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 15:16:20,458 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/read_write_lock-2b.i [2024-11-07 15:16:21,682 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 15:16:22,007 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 15:16:22,008 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-2b.i [2024-11-07 15:16:22,025 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b22ffe7ea/de3fd3df5efd49358d719e93a054096b/FLAG5a80c2129 [2024-11-07 15:16:22,259 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b22ffe7ea/de3fd3df5efd49358d719e93a054096b [2024-11-07 15:16:22,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 15:16:22,263 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 15:16:22,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 15:16:22,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 15:16:22,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 15:16:22,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:16:22" (1/1) ... [2024-11-07 15:16:22,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a96f18b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:22, skipping insertion in model container [2024-11-07 15:16:22,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:16:22" (1/1) ... [2024-11-07 15:16:22,310 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 15:16:22,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:16:22,577 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 15:16:22,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:16:22,661 INFO L204 MainTranslator]: Completed translation [2024-11-07 15:16:22,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:22 WrapperNode [2024-11-07 15:16:22,663 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 15:16:22,664 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 15:16:22,664 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 15:16:22,664 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 15:16:22,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:22" (1/1) ... [2024-11-07 15:16:22,684 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:22" (1/1) ... [2024-11-07 15:16:22,711 INFO L138 Inliner]: procedures = 169, calls = 15, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 123 [2024-11-07 15:16:22,711 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 15:16:22,712 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 15:16:22,712 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 15:16:22,713 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 15:16:22,718 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:22" (1/1) ... [2024-11-07 15:16:22,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:22" (1/1) ... [2024-11-07 15:16:22,722 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:22" (1/1) ... [2024-11-07 15:16:22,723 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:22" (1/1) ... [2024-11-07 15:16:22,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:22" (1/1) ... [2024-11-07 15:16:22,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:22" (1/1) ... [2024-11-07 15:16:22,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:22" (1/1) ... [2024-11-07 15:16:22,736 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:22" (1/1) ... [2024-11-07 15:16:22,738 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 15:16:22,739 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 15:16:22,739 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 15:16:22,739 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 15:16:22,742 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:22" (1/1) ... [2024-11-07 15:16:22,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:16:22,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:16:22,778 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 15:16:22,782 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 15:16:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 15:16:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2024-11-07 15:16:22,805 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2024-11-07 15:16:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-07 15:16:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 15:16:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 15:16:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-11-07 15:16:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-11-07 15:16:22,807 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 15:16:22,939 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 15:16:22,940 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 15:16:23,133 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 15:16:23,134 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 15:16:23,249 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 15:16:23,249 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 15:16:23,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:16:23 BoogieIcfgContainer [2024-11-07 15:16:23,250 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 15:16:23,253 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 15:16:23,254 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 15:16:23,258 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 15:16:23,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:16:22" (1/3) ... [2024-11-07 15:16:23,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31984589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:16:23, skipping insertion in model container [2024-11-07 15:16:23,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:16:22" (2/3) ... [2024-11-07 15:16:23,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31984589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:16:23, skipping insertion in model container [2024-11-07 15:16:23,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:16:23" (3/3) ... [2024-11-07 15:16:23,262 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-2b.i [2024-11-07 15:16:23,274 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 15:16:23,275 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-07 15:16:23,275 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 15:16:23,404 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-07 15:16:23,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 174 transitions, 376 flow [2024-11-07 15:16:23,518 INFO L124 PetriNetUnfolderBase]: 4/170 cut-off events. [2024-11-07 15:16:23,522 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-07 15:16:23,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 170 events. 4/170 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 408 event pairs, 0 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 148. Up to 2 conditions per place. [2024-11-07 15:16:23,530 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 174 transitions, 376 flow [2024-11-07 15:16:23,535 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 165 transitions, 351 flow [2024-11-07 15:16:23,541 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:16:23,555 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;@d08a79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:16:23,555 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-11-07 15:16:23,564 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:16:23,564 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-11-07 15:16:23,564 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:16:23,564 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:23,565 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 15:16:23,565 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-07 15:16:23,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:23,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1940056406, now seen corresponding path program 1 times [2024-11-07 15:16:23,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:23,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182003400] [2024-11-07 15:16:23,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:23,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:23,744 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 15:16:23,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:23,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182003400] [2024-11-07 15:16:23,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182003400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:23,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:23,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 15:16:23,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240149943] [2024-11-07 15:16:23,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:23,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 15:16:23,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:23,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 15:16:23,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 15:16:23,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 174 [2024-11-07 15:16:23,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 165 transitions, 351 flow. Second operand has 2 states, 2 states have (on average 145.0) internal successors, (290), 2 states have internal predecessors, (290), 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 15:16:23,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:23,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 174 [2024-11-07 15:16:23,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:24,050 INFO L124 PetriNetUnfolderBase]: 51/829 cut-off events. [2024-11-07 15:16:24,050 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-11-07 15:16:24,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 974 conditions, 829 events. 51/829 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5446 event pairs, 51 based on Foata normal form. 38/718 useless extension candidates. Maximal degree in co-relation 860. Up to 96 conditions per place. [2024-11-07 15:16:24,067 INFO L140 encePairwiseOnDemand]: 158/174 looper letters, 11 selfloop transitions, 0 changer transitions 0/145 dead transitions. [2024-11-07 15:16:24,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 145 transitions, 333 flow [2024-11-07 15:16:24,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 15:16:24,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-07 15:16:24,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 315 transitions. [2024-11-07 15:16:24,083 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9051724137931034 [2024-11-07 15:16:24,085 INFO L175 Difference]: Start difference. First operand has 174 places, 165 transitions, 351 flow. Second operand 2 states and 315 transitions. [2024-11-07 15:16:24,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 145 transitions, 333 flow [2024-11-07 15:16:24,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 145 transitions, 320 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-07 15:16:24,095 INFO L231 Difference]: Finished difference. Result has 152 places, 145 transitions, 298 flow [2024-11-07 15:16:24,099 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=298, PETRI_PLACES=152, PETRI_TRANSITIONS=145} [2024-11-07 15:16:24,102 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -22 predicate places. [2024-11-07 15:16:24,103 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 145 transitions, 298 flow [2024-11-07 15:16:24,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 145.0) internal successors, (290), 2 states have internal predecessors, (290), 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 15:16:24,103 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:24,103 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] [2024-11-07 15:16:24,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 15:16:24,105 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-07 15:16:24,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:24,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1414159397, now seen corresponding path program 1 times [2024-11-07 15:16:24,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:24,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419232406] [2024-11-07 15:16:24,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:24,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:24,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:16:24,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:24,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419232406] [2024-11-07 15:16:24,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419232406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:24,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:24,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:24,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924857534] [2024-11-07 15:16:24,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:24,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:24,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:24,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:24,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:24,252 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 174 [2024-11-07 15:16:24,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 145 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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 15:16:24,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:24,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 174 [2024-11-07 15:16:24,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:25,044 INFO L124 PetriNetUnfolderBase]: 1206/5690 cut-off events. [2024-11-07 15:16:25,044 INFO L125 PetriNetUnfolderBase]: For 55/82 co-relation queries the response was YES. [2024-11-07 15:16:25,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7732 conditions, 5690 events. 1206/5690 cut-off events. For 55/82 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 62145 event pairs, 746 based on Foata normal form. 0/4662 useless extension candidates. Maximal degree in co-relation 7729. Up to 1501 conditions per place. [2024-11-07 15:16:25,099 INFO L140 encePairwiseOnDemand]: 165/174 looper letters, 26 selfloop transitions, 8 changer transitions 0/158 dead transitions. [2024-11-07 15:16:25,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 158 transitions, 396 flow [2024-11-07 15:16:25,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:25,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:25,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2024-11-07 15:16:25,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8371647509578544 [2024-11-07 15:16:25,106 INFO L175 Difference]: Start difference. First operand has 152 places, 145 transitions, 298 flow. Second operand 3 states and 437 transitions. [2024-11-07 15:16:25,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 158 transitions, 396 flow [2024-11-07 15:16:25,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 158 transitions, 396 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:16:25,112 INFO L231 Difference]: Finished difference. Result has 156 places, 152 transitions, 360 flow [2024-11-07 15:16:25,112 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=360, PETRI_PLACES=156, PETRI_TRANSITIONS=152} [2024-11-07 15:16:25,113 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -18 predicate places. [2024-11-07 15:16:25,114 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 152 transitions, 360 flow [2024-11-07 15:16:25,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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 15:16:25,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:25,115 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] [2024-11-07 15:16:25,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 15:16:25,115 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-07 15:16:25,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:25,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1846805203, now seen corresponding path program 1 times [2024-11-07 15:16:25,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:25,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553657194] [2024-11-07 15:16:25,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:25,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:25,204 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 15:16:25,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:25,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553657194] [2024-11-07 15:16:25,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553657194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:25,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:25,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:25,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866427126] [2024-11-07 15:16:25,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:25,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:25,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:25,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:25,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:25,231 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 174 [2024-11-07 15:16:25,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 152 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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 15:16:25,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:25,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 174 [2024-11-07 15:16:25,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:27,403 INFO L124 PetriNetUnfolderBase]: 3944/17282 cut-off events. [2024-11-07 15:16:27,404 INFO L125 PetriNetUnfolderBase]: For 3687/4562 co-relation queries the response was YES. [2024-11-07 15:16:27,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27404 conditions, 17282 events. 3944/17282 cut-off events. For 3687/4562 co-relation queries the response was YES. Maximal size of possible extension queue 728. Compared 226825 event pairs, 1120 based on Foata normal form. 27/14140 useless extension candidates. Maximal degree in co-relation 27399. Up to 3401 conditions per place. [2024-11-07 15:16:27,583 INFO L140 encePairwiseOnDemand]: 160/174 looper letters, 39 selfloop transitions, 15 changer transitions 0/176 dead transitions. [2024-11-07 15:16:27,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 176 transitions, 556 flow [2024-11-07 15:16:27,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:27,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:27,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 438 transitions. [2024-11-07 15:16:27,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8390804597701149 [2024-11-07 15:16:27,586 INFO L175 Difference]: Start difference. First operand has 156 places, 152 transitions, 360 flow. Second operand 3 states and 438 transitions. [2024-11-07 15:16:27,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 176 transitions, 556 flow [2024-11-07 15:16:27,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 176 transitions, 528 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:16:27,625 INFO L231 Difference]: Finished difference. Result has 158 places, 167 transitions, 494 flow [2024-11-07 15:16:27,626 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=494, PETRI_PLACES=158, PETRI_TRANSITIONS=167} [2024-11-07 15:16:27,627 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -16 predicate places. [2024-11-07 15:16:27,627 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 167 transitions, 494 flow [2024-11-07 15:16:27,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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 15:16:27,629 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:27,630 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] [2024-11-07 15:16:27,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 15:16:27,630 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting writerErr4ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-07 15:16:27,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:27,631 INFO L85 PathProgramCache]: Analyzing trace with hash 325322583, now seen corresponding path program 1 times [2024-11-07 15:16:27,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:27,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490253271] [2024-11-07 15:16:27,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:27,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:27,713 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 15:16:27,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:27,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490253271] [2024-11-07 15:16:27,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490253271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:27,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:27,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:27,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736122036] [2024-11-07 15:16:27,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:27,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:27,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:27,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:27,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:27,733 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 174 [2024-11-07 15:16:27,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 167 transitions, 494 flow. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 15:16:27,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:27,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 174 [2024-11-07 15:16:27,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:29,693 INFO L124 PetriNetUnfolderBase]: 3945/19878 cut-off events. [2024-11-07 15:16:29,694 INFO L125 PetriNetUnfolderBase]: For 5156/7871 co-relation queries the response was YES. [2024-11-07 15:16:29,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32496 conditions, 19878 events. 3945/19878 cut-off events. For 5156/7871 co-relation queries the response was YES. Maximal size of possible extension queue 881. Compared 277830 event pairs, 1184 based on Foata normal form. 32/16376 useless extension candidates. Maximal degree in co-relation 32490. Up to 3043 conditions per place. [2024-11-07 15:16:29,873 INFO L140 encePairwiseOnDemand]: 166/174 looper letters, 19 selfloop transitions, 7 changer transitions 0/176 dead transitions. [2024-11-07 15:16:29,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 176 transitions, 568 flow [2024-11-07 15:16:29,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:29,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:29,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 441 transitions. [2024-11-07 15:16:29,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8448275862068966 [2024-11-07 15:16:29,875 INFO L175 Difference]: Start difference. First operand has 158 places, 167 transitions, 494 flow. Second operand 3 states and 441 transitions. [2024-11-07 15:16:29,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 176 transitions, 568 flow [2024-11-07 15:16:29,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 176 transitions, 538 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:16:29,891 INFO L231 Difference]: Finished difference. Result has 160 places, 173 transitions, 518 flow [2024-11-07 15:16:29,891 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=518, PETRI_PLACES=160, PETRI_TRANSITIONS=173} [2024-11-07 15:16:29,892 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -14 predicate places. [2024-11-07 15:16:29,892 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 173 transitions, 518 flow [2024-11-07 15:16:29,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 15:16:29,893 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:29,893 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] [2024-11-07 15:16:29,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 15:16:29,894 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-07 15:16:29,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:29,894 INFO L85 PathProgramCache]: Analyzing trace with hash 734303005, now seen corresponding path program 1 times [2024-11-07 15:16:29,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:29,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891784004] [2024-11-07 15:16:29,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:29,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:30,212 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 15:16:30,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:30,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891784004] [2024-11-07 15:16:30,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891784004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:30,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:30,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:16:30,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294625881] [2024-11-07 15:16:30,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:30,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 15:16:30,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:30,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 15:16:30,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 15:16:30,243 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 174 [2024-11-07 15:16:30,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 173 transitions, 518 flow. Second operand has 5 states, 5 states have (on average 139.2) internal successors, (696), 5 states have internal predecessors, (696), 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 15:16:30,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:30,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 174 [2024-11-07 15:16:30,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:33,691 INFO L124 PetriNetUnfolderBase]: 10151/44991 cut-off events. [2024-11-07 15:16:33,692 INFO L125 PetriNetUnfolderBase]: For 7778/13048 co-relation queries the response was YES. [2024-11-07 15:16:33,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73637 conditions, 44991 events. 10151/44991 cut-off events. For 7778/13048 co-relation queries the response was YES. Maximal size of possible extension queue 1820. Compared 691863 event pairs, 2356 based on Foata normal form. 77/36416 useless extension candidates. Maximal degree in co-relation 73630. Up to 6509 conditions per place. [2024-11-07 15:16:34,125 INFO L140 encePairwiseOnDemand]: 164/174 looper letters, 31 selfloop transitions, 17 changer transitions 0/201 dead transitions. [2024-11-07 15:16:34,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 201 transitions, 707 flow [2024-11-07 15:16:34,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 15:16:34,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 15:16:34,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 735 transitions. [2024-11-07 15:16:34,129 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8448275862068966 [2024-11-07 15:16:34,129 INFO L175 Difference]: Start difference. First operand has 160 places, 173 transitions, 518 flow. Second operand 5 states and 735 transitions. [2024-11-07 15:16:34,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 201 transitions, 707 flow [2024-11-07 15:16:34,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 201 transitions, 689 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:16:34,170 INFO L231 Difference]: Finished difference. Result has 165 places, 187 transitions, 627 flow [2024-11-07 15:16:34,171 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=627, PETRI_PLACES=165, PETRI_TRANSITIONS=187} [2024-11-07 15:16:34,172 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -9 predicate places. [2024-11-07 15:16:34,172 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 187 transitions, 627 flow [2024-11-07 15:16:34,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 139.2) internal successors, (696), 5 states have internal predecessors, (696), 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 15:16:34,172 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:34,173 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] [2024-11-07 15:16:34,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 15:16:34,173 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-07 15:16:34,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:34,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1604632537, now seen corresponding path program 2 times [2024-11-07 15:16:34,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:34,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072597305] [2024-11-07 15:16:34,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:34,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:34,240 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 15:16:34,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:34,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072597305] [2024-11-07 15:16:34,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072597305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:34,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:34,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:16:34,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657028380] [2024-11-07 15:16:34,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:34,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:34,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:34,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:34,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:34,251 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 174 [2024-11-07 15:16:34,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 187 transitions, 627 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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 15:16:34,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:34,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 174 [2024-11-07 15:16:34,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:35,901 INFO L124 PetriNetUnfolderBase]: 2626/18284 cut-off events. [2024-11-07 15:16:35,901 INFO L125 PetriNetUnfolderBase]: For 4127/5017 co-relation queries the response was YES. [2024-11-07 15:16:35,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29075 conditions, 18284 events. 2626/18284 cut-off events. For 4127/5017 co-relation queries the response was YES. Maximal size of possible extension queue 726. Compared 263604 event pairs, 808 based on Foata normal form. 141/15058 useless extension candidates. Maximal degree in co-relation 29066. Up to 2621 conditions per place. [2024-11-07 15:16:36,006 INFO L140 encePairwiseOnDemand]: 168/174 looper letters, 19 selfloop transitions, 7 changer transitions 0/182 dead transitions. [2024-11-07 15:16:36,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 182 transitions, 637 flow [2024-11-07 15:16:36,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:36,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:36,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2024-11-07 15:16:36,007 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8544061302681992 [2024-11-07 15:16:36,007 INFO L175 Difference]: Start difference. First operand has 165 places, 187 transitions, 627 flow. Second operand 3 states and 446 transitions. [2024-11-07 15:16:36,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 182 transitions, 637 flow [2024-11-07 15:16:36,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 182 transitions, 623 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-07 15:16:36,015 INFO L231 Difference]: Finished difference. Result has 166 places, 177 transitions, 569 flow [2024-11-07 15:16:36,015 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=569, PETRI_PLACES=166, PETRI_TRANSITIONS=177} [2024-11-07 15:16:36,016 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -8 predicate places. [2024-11-07 15:16:36,016 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 177 transitions, 569 flow [2024-11-07 15:16:36,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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 15:16:36,017 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:36,017 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] [2024-11-07 15:16:36,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 15:16:36,017 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting readerErr4ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-07 15:16:36,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:36,018 INFO L85 PathProgramCache]: Analyzing trace with hash 129534938, now seen corresponding path program 1 times [2024-11-07 15:16:36,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:36,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138127033] [2024-11-07 15:16:36,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:36,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:36,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:36,044 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 15:16:36,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:36,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138127033] [2024-11-07 15:16:36,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138127033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:36,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:36,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:36,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558870604] [2024-11-07 15:16:36,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:36,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:36,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:36,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:36,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:36,066 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 174 [2024-11-07 15:16:36,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 177 transitions, 569 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 15:16:36,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:36,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 174 [2024-11-07 15:16:36,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:38,303 INFO L124 PetriNetUnfolderBase]: 5685/31584 cut-off events. [2024-11-07 15:16:38,303 INFO L125 PetriNetUnfolderBase]: For 12547/13712 co-relation queries the response was YES. [2024-11-07 15:16:38,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53926 conditions, 31584 events. 5685/31584 cut-off events. For 12547/13712 co-relation queries the response was YES. Maximal size of possible extension queue 1298. Compared 483246 event pairs, 2138 based on Foata normal form. 3/25667 useless extension candidates. Maximal degree in co-relation 53917. Up to 3939 conditions per place. [2024-11-07 15:16:38,507 INFO L140 encePairwiseOnDemand]: 168/174 looper letters, 33 selfloop transitions, 5 changer transitions 0/189 dead transitions. [2024-11-07 15:16:38,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 189 transitions, 699 flow [2024-11-07 15:16:38,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:38,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:38,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 438 transitions. [2024-11-07 15:16:38,509 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8390804597701149 [2024-11-07 15:16:38,509 INFO L175 Difference]: Start difference. First operand has 166 places, 177 transitions, 569 flow. Second operand 3 states and 438 transitions. [2024-11-07 15:16:38,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 189 transitions, 699 flow [2024-11-07 15:16:38,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 189 transitions, 679 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:16:38,523 INFO L231 Difference]: Finished difference. Result has 168 places, 181 transitions, 593 flow [2024-11-07 15:16:38,523 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=593, PETRI_PLACES=168, PETRI_TRANSITIONS=181} [2024-11-07 15:16:38,523 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -6 predicate places. [2024-11-07 15:16:38,523 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 181 transitions, 593 flow [2024-11-07 15:16:38,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 15:16:38,524 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:38,524 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 15:16:38,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 15:16:38,524 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-07 15:16:38,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:38,525 INFO L85 PathProgramCache]: Analyzing trace with hash -832909560, now seen corresponding path program 1 times [2024-11-07 15:16:38,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:38,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043620887] [2024-11-07 15:16:38,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:38,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:38,574 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 15:16:38,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:38,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043620887] [2024-11-07 15:16:38,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043620887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:38,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:38,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:38,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820125440] [2024-11-07 15:16:38,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:38,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:38,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:38,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:38,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:38,607 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 174 [2024-11-07 15:16:38,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 181 transitions, 593 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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 15:16:38,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:38,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 174 [2024-11-07 15:16:38,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:41,570 INFO L124 PetriNetUnfolderBase]: 7006/40751 cut-off events. [2024-11-07 15:16:41,570 INFO L125 PetriNetUnfolderBase]: For 18036/22780 co-relation queries the response was YES. [2024-11-07 15:16:41,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71946 conditions, 40751 events. 7006/40751 cut-off events. For 18036/22780 co-relation queries the response was YES. Maximal size of possible extension queue 1799. Compared 655619 event pairs, 2320 based on Foata normal form. 159/33627 useless extension candidates. Maximal degree in co-relation 71936. Up to 7090 conditions per place. [2024-11-07 15:16:41,870 INFO L140 encePairwiseOnDemand]: 166/174 looper letters, 43 selfloop transitions, 12 changer transitions 0/194 dead transitions. [2024-11-07 15:16:41,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 194 transitions, 765 flow [2024-11-07 15:16:41,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:41,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:41,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 433 transitions. [2024-11-07 15:16:41,871 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8295019157088123 [2024-11-07 15:16:41,871 INFO L175 Difference]: Start difference. First operand has 168 places, 181 transitions, 593 flow. Second operand 3 states and 433 transitions. [2024-11-07 15:16:41,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 194 transitions, 765 flow [2024-11-07 15:16:41,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 194 transitions, 755 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:16:41,942 INFO L231 Difference]: Finished difference. Result has 170 places, 191 transitions, 705 flow [2024-11-07 15:16:41,942 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=705, PETRI_PLACES=170, PETRI_TRANSITIONS=191} [2024-11-07 15:16:41,943 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -4 predicate places. [2024-11-07 15:16:41,943 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 191 transitions, 705 flow [2024-11-07 15:16:41,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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 15:16:41,943 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:41,944 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] [2024-11-07 15:16:41,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 15:16:41,944 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting readerErr5ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-07 15:16:41,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:41,944 INFO L85 PathProgramCache]: Analyzing trace with hash 2095129202, now seen corresponding path program 1 times [2024-11-07 15:16:41,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:41,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762944285] [2024-11-07 15:16:41,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:41,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:16:41,979 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 15:16:41,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:16:41,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762944285] [2024-11-07 15:16:41,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762944285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:16:41,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:16:41,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:16:41,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330143045] [2024-11-07 15:16:41,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:16:41,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:16:41,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:16:41,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:16:41,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:16:41,998 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 174 [2024-11-07 15:16:41,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 191 transitions, 705 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 15:16:41,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:16:41,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 174 [2024-11-07 15:16:41,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:16:44,552 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][201], [37#L718-4true, Black: 193#true, 162#L708-4true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 56#L700-1true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 19#L699-3true, 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-11-07 15:16:44,553 INFO L294 olderBase$Statistics]: this new event has 81 ancestors and is cut-off event [2024-11-07 15:16:44,553 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2024-11-07 15:16:44,553 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2024-11-07 15:16:44,553 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2024-11-07 15:16:44,779 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][143], [37#L718-4true, 162#L708-4true, Black: 193#true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 34#L700true, 85#L700-1true, Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-11-07 15:16:44,779 INFO L294 olderBase$Statistics]: this new event has 82 ancestors and is cut-off event [2024-11-07 15:16:44,779 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-11-07 15:16:44,779 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-11-07 15:16:44,779 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-11-07 15:16:44,796 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][143], [37#L718-4true, Black: 193#true, 162#L708-4true, 47#L700true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 56#L700-1true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-11-07 15:16:44,796 INFO L294 olderBase$Statistics]: this new event has 82 ancestors and is cut-off event [2024-11-07 15:16:44,796 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-11-07 15:16:44,796 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-11-07 15:16:44,796 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-11-07 15:16:44,816 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][201], [37#L718-4true, Black: 193#true, 162#L708-4true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), 69#L700-3true, Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 19#L699-3true, 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-11-07 15:16:44,816 INFO L294 olderBase$Statistics]: this new event has 83 ancestors and is cut-off event [2024-11-07 15:16:44,816 INFO L297 olderBase$Statistics]: existing Event has 83 ancestors and is cut-off event [2024-11-07 15:16:44,816 INFO L297 olderBase$Statistics]: existing Event has 83 ancestors and is cut-off event [2024-11-07 15:16:44,816 INFO L297 olderBase$Statistics]: existing Event has 83 ancestors and is cut-off event [2024-11-07 15:16:44,877 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][200], [37#L718-4true, Black: 193#true, 162#L708-4true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 35#writerErr4ASSERT_VIOLATIONDATA_RACEtrue, Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 64#L699-3true, 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-11-07 15:16:44,877 INFO L294 olderBase$Statistics]: this new event has 84 ancestors and is cut-off event [2024-11-07 15:16:44,877 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-11-07 15:16:44,877 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-11-07 15:16:44,877 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-11-07 15:16:45,197 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][143], [37#L718-4true, Black: 193#true, 162#L708-4true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 34#L700true, Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 184#true, 226#(= |#race~y~0| 0), 144#L700-3true, Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-11-07 15:16:45,197 INFO L294 olderBase$Statistics]: this new event has 84 ancestors and is cut-off event [2024-11-07 15:16:45,197 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-11-07 15:16:45,197 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-11-07 15:16:45,197 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-11-07 15:16:45,241 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][143], [37#L718-4true, 162#L708-4true, Black: 193#true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 47#L700true, 186#true, 173#L708-3true, 219#true, 69#L700-3true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 226#(= |#race~y~0| 0), 184#true, Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-11-07 15:16:45,241 INFO L294 olderBase$Statistics]: this new event has 84 ancestors and is cut-off event [2024-11-07 15:16:45,241 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-11-07 15:16:45,241 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-11-07 15:16:45,241 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-11-07 15:16:45,290 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][143], [37#L718-4true, Black: 193#true, 162#L708-4true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 40#L700-4true, 34#L700true, Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-11-07 15:16:45,290 INFO L294 olderBase$Statistics]: this new event has 85 ancestors and is cut-off event [2024-11-07 15:16:45,290 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-11-07 15:16:45,290 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-11-07 15:16:45,290 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-11-07 15:16:45,303 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][143], [37#L718-4true, 162#L708-4true, Black: 193#true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 34#L700true, 35#writerErr4ASSERT_VIOLATIONDATA_RACEtrue, Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-11-07 15:16:45,303 INFO L294 olderBase$Statistics]: this new event has 85 ancestors and is cut-off event [2024-11-07 15:16:45,303 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-11-07 15:16:45,303 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-11-07 15:16:45,303 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-11-07 15:16:45,378 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][143], [37#L718-4true, Black: 193#true, 162#L708-4true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 34#L700true, 27#L701true, Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-11-07 15:16:45,378 INFO L294 olderBase$Statistics]: this new event has 86 ancestors and is cut-off event [2024-11-07 15:16:45,378 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-11-07 15:16:45,378 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-11-07 15:16:45,378 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-11-07 15:16:45,758 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][143], [Black: 193#true, 162#L708-4true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 66#L719-1true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 34#L700true, Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-11-07 15:16:45,758 INFO L294 olderBase$Statistics]: this new event has 91 ancestors and is cut-off event [2024-11-07 15:16:45,758 INFO L297 olderBase$Statistics]: existing Event has 91 ancestors and is cut-off event [2024-11-07 15:16:45,759 INFO L297 olderBase$Statistics]: existing Event has 91 ancestors and is cut-off event [2024-11-07 15:16:45,759 INFO L297 olderBase$Statistics]: existing Event has 91 ancestors and is cut-off event [2024-11-07 15:16:46,331 INFO L124 PetriNetUnfolderBase]: 9119/53734 cut-off events. [2024-11-07 15:16:46,331 INFO L125 PetriNetUnfolderBase]: For 30731/34489 co-relation queries the response was YES. [2024-11-07 15:16:46,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98737 conditions, 53734 events. 9119/53734 cut-off events. For 30731/34489 co-relation queries the response was YES. Maximal size of possible extension queue 2443. Compared 906941 event pairs, 1957 based on Foata normal form. 247/45329 useless extension candidates. Maximal degree in co-relation 98726. Up to 7235 conditions per place. [2024-11-07 15:16:46,769 INFO L140 encePairwiseOnDemand]: 166/174 looper letters, 39 selfloop transitions, 7 changer transitions 0/209 dead transitions. [2024-11-07 15:16:46,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 209 transitions, 875 flow [2024-11-07 15:16:46,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:16:46,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:16:46,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions. [2024-11-07 15:16:46,771 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8505747126436781 [2024-11-07 15:16:46,771 INFO L175 Difference]: Start difference. First operand has 170 places, 191 transitions, 705 flow. Second operand 3 states and 444 transitions. [2024-11-07 15:16:46,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 209 transitions, 875 flow [2024-11-07 15:16:46,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 209 transitions, 835 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-11-07 15:16:46,850 INFO L231 Difference]: Finished difference. Result has 172 places, 197 transitions, 727 flow [2024-11-07 15:16:46,851 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=727, PETRI_PLACES=172, PETRI_TRANSITIONS=197} [2024-11-07 15:16:46,851 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -2 predicate places. [2024-11-07 15:16:46,851 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 197 transitions, 727 flow [2024-11-07 15:16:46,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 15:16:46,852 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:16:46,852 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 15:16:46,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 15:16:46,852 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting writerErr4ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-07 15:16:46,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:16:46,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1425409966, now seen corresponding path program 1 times [2024-11-07 15:16:46,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:16:46,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647459340] [2024-11-07 15:16:46,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:16:46,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:16:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:16:46,867 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 15:16:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:16:46,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 15:16:46,904 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 15:16:46,905 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2024-11-07 15:16:46,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2024-11-07 15:16:46,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2024-11-07 15:16:46,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2024-11-07 15:16:46,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2024-11-07 15:16:46,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2024-11-07 15:16:46,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2024-11-07 15:16:46,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2024-11-07 15:16:46,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2024-11-07 15:16:46,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2024-11-07 15:16:46,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 46 remaining) [2024-11-07 15:16:46,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 46 remaining) [2024-11-07 15:16:46,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 46 remaining) [2024-11-07 15:16:46,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 46 remaining) [2024-11-07 15:16:46,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2024-11-07 15:16:46,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2024-11-07 15:16:46,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2024-11-07 15:16:46,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2024-11-07 15:16:46,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2024-11-07 15:16:46,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2024-11-07 15:16:46,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2024-11-07 15:16:46,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2024-11-07 15:16:46,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2024-11-07 15:16:46,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2024-11-07 15:16:46,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2024-11-07 15:16:46,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2024-11-07 15:16:46,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 15:16:46,910 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:16:46,954 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 15:16:46,954 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 15:16:46,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:16:46 BasicIcfg [2024-11-07 15:16:46,962 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 15:16:46,963 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 15:16:46,963 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 15:16:46,963 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 15:16:46,964 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:16:23" (3/4) ... [2024-11-07 15:16:46,964 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-07 15:16:47,016 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 15:16:47,016 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 15:16:47,017 INFO L158 Benchmark]: Toolchain (without parser) took 24754.23ms. Allocated memory was 109.1MB in the beginning and 9.8GB in the end (delta: 9.7GB). Free memory was 84.4MB in the beginning and 8.1GB in the end (delta: -8.0GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2024-11-07 15:16:47,017 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 15:16:47,017 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.69ms. Allocated memory is still 109.1MB. Free memory was 84.2MB in the beginning and 64.9MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 15:16:47,018 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.23ms. Allocated memory is still 109.1MB. Free memory was 64.9MB in the beginning and 63.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 15:16:47,018 INFO L158 Benchmark]: Boogie Preprocessor took 25.97ms. Allocated memory is still 109.1MB. Free memory was 63.1MB in the beginning and 62.0MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 15:16:47,018 INFO L158 Benchmark]: RCFGBuilder took 511.08ms. Allocated memory is still 109.1MB. Free memory was 62.0MB in the beginning and 41.5MB in the end (delta: 20.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 15:16:47,021 INFO L158 Benchmark]: TraceAbstraction took 23708.56ms. Allocated memory was 109.1MB in the beginning and 9.8GB in the end (delta: 9.7GB). Free memory was 41.0MB in the beginning and 8.1GB in the end (delta: -8.1GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2024-11-07 15:16:47,021 INFO L158 Benchmark]: Witness Printer took 53.86ms. Allocated memory is still 9.8GB. Free memory was 8.1GB in the beginning and 8.1GB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 15:16:47,023 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.69ms. Allocated memory is still 109.1MB. Free memory was 84.2MB in the beginning and 64.9MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.23ms. Allocated memory is still 109.1MB. Free memory was 64.9MB in the beginning and 63.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.97ms. Allocated memory is still 109.1MB. Free memory was 63.1MB in the beginning and 62.0MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 511.08ms. Allocated memory is still 109.1MB. Free memory was 62.0MB in the beginning and 41.5MB in the end (delta: 20.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 23708.56ms. Allocated memory was 109.1MB in the beginning and 9.8GB in the end (delta: 9.7GB). Free memory was 41.0MB in the beginning and 8.1GB in the end (delta: -8.1GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. * Witness Printer took 53.86ms. Allocated memory is still 9.8GB. Free memory was 8.1GB in the beginning and 8.1GB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 700]: Data race detected Data race detected The following path leads to a data race: [L688] 0 int w=0, r=0, x, y; VAL [r=0, w=0, x=0, y=0] [L714] 0 pthread_t t1, t2, t3, t4; VAL [r=0, w=0, x=0, y=0] [L715] FCALL, FORK 0 pthread_create(&t1, 0, writer, 0) VAL [r=0, t1=-1, w=0, x=0, y=0] [L716] FCALL, FORK 0 pthread_create(&t2, 0, reader, 0) VAL [r=0, t1=-1, t2=0, w=0, x=0, y=0] [L704] 2 int l; VAL [\old(arg)={0:0}, arg={0:0}, r=0, w=0, x=0, y=0] [L698] CALL 1 __VERIFIER_atomic_take_write_lock() [L690] EXPR 1 w==0 [L690] EXPR 1 w==0 && r==0 [L690] EXPR 1 r==0 [L690] EXPR 1 w==0 && r==0 [L690] CALL 1 assume_abort_if_not(w==0 && r==0) [L3] COND FALSE 1 !(!cond) [L690] RET 1 assume_abort_if_not(w==0 && r==0) [L691] 1 w = 1 [L698] RET 1 __VERIFIER_atomic_take_write_lock() [L699] 1 x = 3 VAL [\old(arg)={0:0}, arg={0:0}, r=0, w=1, x=3, y=0] [L700] 1 w = 0 VAL [\old(arg)={0:0}, arg={0:0}, r=0, w=0, x=3, y=0] [L705] CALL 2 __VERIFIER_atomic_take_read_lock() [L694] EXPR 2 w==0 [L694] CALL 2 assume_abort_if_not(w==0) [L3] COND FALSE 2 !(!cond) [L694] RET 2 assume_abort_if_not(w==0) [L695] EXPR 2 r+1 [L695] 2 r = r+1 [L705] RET 2 __VERIFIER_atomic_take_read_lock() [L700] 1 w = 0 VAL [\old(arg)={0:0}, arg={0:0}, r=1, w=0, x=3, y=0] Now there is a data race on ~w~0 between C: w==0 [694] and C: w = 0 [700] - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 236 locations, 46 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 23.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 22.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 255 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 420 IncrementalHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 56 mSDtfsCounter, 420 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=727occurred in iteration=9, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 335 NumberOfCodeBlocks, 335 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 450 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-07 15:16:47,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE