./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.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-divine/one_time_barrier_3t.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', '658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f'] 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-divine/one_time_barrier_3t.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 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 15:32:25,992 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 15:32:26,073 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-07 15:32:26,080 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 15:32:26,081 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 15:32:26,108 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 15:32:26,109 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 15:32:26,109 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 15:32:26,109 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 15:32:26,110 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 15:32:26,110 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 15:32:26,110 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 15:32:26,110 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 15:32:26,110 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 15:32:26,111 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 15:32:26,111 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 15:32:26,111 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 15:32:26,111 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 15:32:26,111 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 15:32:26,111 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 15:32:26,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 15:32:26,111 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 15:32:26,112 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-07 15:32:26,112 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 15:32:26,112 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 15:32:26,112 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 15:32:26,115 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 15:32:26,115 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 15:32:26,116 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 15:32:26,116 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 15:32:26,116 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 15:32:26,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:32:26,116 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 15:32:26,116 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 15:32:26,117 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 15:32:26,117 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 15:32:26,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 15:32:26,117 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 15:32:26,117 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 15:32:26,118 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 15:32:26,118 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 15:32:26,118 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 -> 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f [2024-11-07 15:32:26,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 15:32:26,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 15:32:26,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 15:32:26,419 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 15:32:26,419 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 15:32:26,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2024-11-07 15:32:27,688 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 15:32:28,014 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 15:32:28,015 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2024-11-07 15:32:28,033 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/39a641ceb/45b4e6f4e3c64f2599ccb6bf2a1e39a9/FLAG9ba9dc547 [2024-11-07 15:32:28,052 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/39a641ceb/45b4e6f4e3c64f2599ccb6bf2a1e39a9 [2024-11-07 15:32:28,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 15:32:28,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 15:32:28,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 15:32:28,059 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 15:32:28,063 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 15:32:28,064 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:32:28" (1/1) ... [2024-11-07 15:32:28,066 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eb0101c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:28, skipping insertion in model container [2024-11-07 15:32:28,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:32:28" (1/1) ... [2024-11-07 15:32:28,099 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 15:32:28,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:32:28,452 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 15:32:28,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:32:28,590 INFO L204 MainTranslator]: Completed translation [2024-11-07 15:32:28,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:28 WrapperNode [2024-11-07 15:32:28,591 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 15:32:28,592 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 15:32:28,592 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 15:32:28,592 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 15:32:28,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:28" (1/1) ... [2024-11-07 15:32:28,622 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:28" (1/1) ... [2024-11-07 15:32:28,686 INFO L138 Inliner]: procedures = 174, calls = 91, calls flagged for inlining = 20, calls inlined = 35, statements flattened = 886 [2024-11-07 15:32:28,686 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 15:32:28,687 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 15:32:28,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 15:32:28,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 15:32:28,693 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:28" (1/1) ... [2024-11-07 15:32:28,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:28" (1/1) ... [2024-11-07 15:32:28,710 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:28" (1/1) ... [2024-11-07 15:32:28,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:28" (1/1) ... [2024-11-07 15:32:28,762 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:28" (1/1) ... [2024-11-07 15:32:28,774 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:28" (1/1) ... [2024-11-07 15:32:28,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:28" (1/1) ... [2024-11-07 15:32:28,789 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:28" (1/1) ... [2024-11-07 15:32:28,795 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 15:32:28,796 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 15:32:28,796 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 15:32:28,796 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 15:32:28,797 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:28" (1/1) ... [2024-11-07 15:32:28,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:32:28,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:32:28,833 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 15:32:28,840 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 15:32:28,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-07 15:32:28,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-07 15:32:28,859 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 15:32:28,859 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2024-11-07 15:32:28,859 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2024-11-07 15:32:28,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 15:32:28,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-07 15:32:28,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 15:32:28,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-07 15:32:28,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 15:32:28,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-07 15:32:28,860 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 15:32:28,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 15:32:28,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 15:32:28,862 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 15:32:29,024 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 15:32:29,026 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 15:32:30,311 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 15:32:30,312 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 15:32:30,387 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 15:32:30,392 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-07 15:32:30,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:32:30 BoogieIcfgContainer [2024-11-07 15:32:30,392 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 15:32:30,395 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 15:32:30,395 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 15:32:30,400 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 15:32:30,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:32:28" (1/3) ... [2024-11-07 15:32:30,401 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d4bc041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:32:30, skipping insertion in model container [2024-11-07 15:32:30,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:28" (2/3) ... [2024-11-07 15:32:30,401 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d4bc041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:32:30, skipping insertion in model container [2024-11-07 15:32:30,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:32:30" (3/3) ... [2024-11-07 15:32:30,402 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_3t.i [2024-11-07 15:32:30,417 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 15:32:30,418 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 77 error locations. [2024-11-07 15:32:30,418 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 15:32:30,658 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-07 15:32:30,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 949 places, 1035 transitions, 2077 flow [2024-11-07 15:32:31,325 INFO L124 PetriNetUnfolderBase]: 135/1533 cut-off events. [2024-11-07 15:32:31,327 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 15:32:31,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1538 conditions, 1533 events. 135/1533 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 5597 event pairs, 0 based on Foata normal form. 0/1280 useless extension candidates. Maximal degree in co-relation 924. Up to 4 conditions per place. [2024-11-07 15:32:31,375 INFO L82 GeneralOperation]: Start removeDead. Operand has 949 places, 1035 transitions, 2077 flow [2024-11-07 15:32:31,402 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 949 places, 1035 transitions, 2077 flow [2024-11-07 15:32:31,409 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:32:31,420 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;@3bd2d59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:32:31,420 INFO L334 AbstractCegarLoop]: Starting to check reachability of 112 error locations. [2024-11-07 15:32:31,431 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:32:31,431 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2024-11-07 15:32:31,431 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:32:31,432 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:32:31,433 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:32:31,433 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-07 15:32:31,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:32:31,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1509972903, now seen corresponding path program 1 times [2024-11-07 15:32:31,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:32:31,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171570604] [2024-11-07 15:32:31,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:32:31,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:32:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:32:32,404 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 15:32:32,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:32:32,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171570604] [2024-11-07 15:32:32,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171570604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:32:32,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:32:32,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:32:32,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009139544] [2024-11-07 15:32:32,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:32:32,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:32:32,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:32:32,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:32:32,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:32:34,042 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1035 [2024-11-07 15:32:34,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 949 places, 1035 transitions, 2077 flow. Second operand has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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 15:32:34,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:32:34,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1035 [2024-11-07 15:32:34,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:32:44,154 INFO L124 PetriNetUnfolderBase]: 12711/59457 cut-off events. [2024-11-07 15:32:44,154 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-07 15:32:44,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82858 conditions, 59457 events. 12711/59457 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 692435 event pairs, 11413 based on Foata normal form. 7001/59290 useless extension candidates. Maximal degree in co-relation 82164. Up to 23391 conditions per place. [2024-11-07 15:32:44,400 INFO L140 encePairwiseOnDemand]: 959/1035 looper letters, 231 selfloop transitions, 5 changer transitions 3/937 dead transitions. [2024-11-07 15:32:44,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 926 places, 937 transitions, 2353 flow [2024-11-07 15:32:44,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:32:44,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:32:44,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4675 transitions. [2024-11-07 15:32:44,434 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7528180354267311 [2024-11-07 15:32:44,436 INFO L175 Difference]: Start difference. First operand has 949 places, 1035 transitions, 2077 flow. Second operand 6 states and 4675 transitions. [2024-11-07 15:32:44,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 926 places, 937 transitions, 2353 flow [2024-11-07 15:32:44,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 926 places, 937 transitions, 2353 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:32:44,466 INFO L231 Difference]: Finished difference. Result has 926 places, 934 transitions, 1885 flow [2024-11-07 15:32:44,469 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1035, PETRI_DIFFERENCE_MINUEND_FLOW=1881, PETRI_DIFFERENCE_MINUEND_PLACES=921, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=937, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=932, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1885, PETRI_PLACES=926, PETRI_TRANSITIONS=934} [2024-11-07 15:32:44,473 INFO L277 CegarLoopForPetriNet]: 949 programPoint places, -23 predicate places. [2024-11-07 15:32:44,475 INFO L471 AbstractCegarLoop]: Abstraction has has 926 places, 934 transitions, 1885 flow [2024-11-07 15:32:44,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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 15:32:44,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:32:44,479 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:32:44,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 15:32:44,480 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-07 15:32:44,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:32:44,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1493705184, now seen corresponding path program 1 times [2024-11-07 15:32:44,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:32:44,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83052049] [2024-11-07 15:32:44,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:32:44,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:32:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:32:44,564 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 15:32:44,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:32:44,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83052049] [2024-11-07 15:32:44,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83052049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:32:44,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:32:44,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:32:44,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928443144] [2024-11-07 15:32:44,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:32:44,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:32:44,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:32:44,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:32:44,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:32:44,618 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 937 out of 1035 [2024-11-07 15:32:44,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 926 places, 934 transitions, 1885 flow. Second operand has 3 states, 3 states have (on average 938.3333333333334) internal successors, (2815), 3 states have internal predecessors, (2815), 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 15:32:44,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:32:44,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 937 of 1035 [2024-11-07 15:32:44,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:32:45,382 INFO L124 PetriNetUnfolderBase]: 247/4798 cut-off events. [2024-11-07 15:32:45,383 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-07 15:32:45,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5121 conditions, 4798 events. 247/4798 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 36214 event pairs, 110 based on Foata normal form. 1/4139 useless extension candidates. Maximal degree in co-relation 5032. Up to 306 conditions per place. [2024-11-07 15:32:45,420 INFO L140 encePairwiseOnDemand]: 1032/1035 looper letters, 27 selfloop transitions, 2 changer transitions 0/935 dead transitions. [2024-11-07 15:32:45,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 925 places, 935 transitions, 1945 flow [2024-11-07 15:32:45,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:32:45,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:32:45,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2841 transitions. [2024-11-07 15:32:45,426 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.914975845410628 [2024-11-07 15:32:45,426 INFO L175 Difference]: Start difference. First operand has 926 places, 934 transitions, 1885 flow. Second operand 3 states and 2841 transitions. [2024-11-07 15:32:45,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 925 places, 935 transitions, 1945 flow [2024-11-07 15:32:45,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 920 places, 935 transitions, 1935 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:32:45,442 INFO L231 Difference]: Finished difference. Result has 921 places, 935 transitions, 1887 flow [2024-11-07 15:32:45,443 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1035, PETRI_DIFFERENCE_MINUEND_FLOW=1875, PETRI_DIFFERENCE_MINUEND_PLACES=918, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=932, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1887, PETRI_PLACES=921, PETRI_TRANSITIONS=935} [2024-11-07 15:32:45,444 INFO L277 CegarLoopForPetriNet]: 949 programPoint places, -28 predicate places. [2024-11-07 15:32:45,445 INFO L471 AbstractCegarLoop]: Abstraction has has 921 places, 935 transitions, 1887 flow [2024-11-07 15:32:45,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 938.3333333333334) internal successors, (2815), 3 states have internal predecessors, (2815), 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 15:32:45,447 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:32:45,447 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:32:45,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 15:32:45,447 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-07 15:32:45,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:32:45,447 INFO L85 PathProgramCache]: Analyzing trace with hash 952333540, now seen corresponding path program 1 times [2024-11-07 15:32:45,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:32:45,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753705558] [2024-11-07 15:32:45,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:32:45,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:32:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:32:45,816 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 15:32:45,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:32:45,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753705558] [2024-11-07 15:32:45,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753705558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:32:45,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:32:45,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:32:45,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248025976] [2024-11-07 15:32:45,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:32:45,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:32:45,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:32:45,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:32:45,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:32:47,082 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1035 [2024-11-07 15:32:47,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 921 places, 935 transitions, 1887 flow. Second operand has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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 15:32:47,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:32:47,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1035 [2024-11-07 15:32:47,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:32:55,601 INFO L124 PetriNetUnfolderBase]: 12711/59481 cut-off events. [2024-11-07 15:32:55,602 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-07 15:32:55,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82897 conditions, 59481 events. 12711/59481 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 692229 event pairs, 11413 based on Foata normal form. 0/52315 useless extension candidates. Maximal degree in co-relation 82813. Up to 23394 conditions per place. [2024-11-07 15:32:55,820 INFO L140 encePairwiseOnDemand]: 1029/1035 looper letters, 232 selfloop transitions, 5 changer transitions 0/934 dead transitions. [2024-11-07 15:32:55,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 925 places, 934 transitions, 2359 flow [2024-11-07 15:32:55,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:32:55,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:32:55,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4605 transitions. [2024-11-07 15:32:55,832 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7415458937198067 [2024-11-07 15:32:55,833 INFO L175 Difference]: Start difference. First operand has 921 places, 935 transitions, 1887 flow. Second operand 6 states and 4605 transitions. [2024-11-07 15:32:55,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 925 places, 934 transitions, 2359 flow [2024-11-07 15:32:55,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 924 places, 934 transitions, 2357 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:32:55,850 INFO L231 Difference]: Finished difference. Result has 924 places, 934 transitions, 1893 flow [2024-11-07 15:32:55,852 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1035, PETRI_DIFFERENCE_MINUEND_FLOW=1883, PETRI_DIFFERENCE_MINUEND_PLACES=919, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=929, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1893, PETRI_PLACES=924, PETRI_TRANSITIONS=934} [2024-11-07 15:32:55,853 INFO L277 CegarLoopForPetriNet]: 949 programPoint places, -25 predicate places. [2024-11-07 15:32:55,853 INFO L471 AbstractCegarLoop]: Abstraction has has 924 places, 934 transitions, 1893 flow [2024-11-07 15:32:55,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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 15:32:55,856 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:32:55,856 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:32:55,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 15:32:55,856 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-07 15:32:55,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:32:55,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1819614453, now seen corresponding path program 1 times [2024-11-07 15:32:55,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:32:55,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174792246] [2024-11-07 15:32:55,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:32:55,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:32:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:32:56,337 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 15:32:56,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:32:56,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174792246] [2024-11-07 15:32:56,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174792246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:32:56,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:32:56,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:32:56,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854977016] [2024-11-07 15:32:56,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:32:56,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:32:56,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:32:56,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:32:56,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:32:57,577 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1035 [2024-11-07 15:32:57,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 924 places, 934 transitions, 1893 flow. Second operand has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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 15:32:57,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:32:57,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1035 [2024-11-07 15:32:57,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:33:05,556 INFO L124 PetriNetUnfolderBase]: 12711/59479 cut-off events. [2024-11-07 15:33:05,556 INFO L125 PetriNetUnfolderBase]: For 6/9 co-relation queries the response was YES. [2024-11-07 15:33:05,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82904 conditions, 59479 events. 12711/59479 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 692403 event pairs, 11413 based on Foata normal form. 0/52315 useless extension candidates. Maximal degree in co-relation 82806. Up to 23394 conditions per place. [2024-11-07 15:33:05,747 INFO L140 encePairwiseOnDemand]: 1029/1035 looper letters, 232 selfloop transitions, 5 changer transitions 0/933 dead transitions. [2024-11-07 15:33:05,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 928 places, 933 transitions, 2365 flow [2024-11-07 15:33:05,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:33:05,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:33:05,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4605 transitions. [2024-11-07 15:33:05,757 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7415458937198067 [2024-11-07 15:33:05,757 INFO L175 Difference]: Start difference. First operand has 924 places, 934 transitions, 1893 flow. Second operand 6 states and 4605 transitions. [2024-11-07 15:33:05,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 928 places, 933 transitions, 2365 flow [2024-11-07 15:33:05,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 923 places, 933 transitions, 2355 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:33:05,770 INFO L231 Difference]: Finished difference. Result has 923 places, 933 transitions, 1891 flow [2024-11-07 15:33:05,771 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1035, PETRI_DIFFERENCE_MINUEND_FLOW=1881, PETRI_DIFFERENCE_MINUEND_PLACES=918, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=933, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=928, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1891, PETRI_PLACES=923, PETRI_TRANSITIONS=933} [2024-11-07 15:33:05,772 INFO L277 CegarLoopForPetriNet]: 949 programPoint places, -26 predicate places. [2024-11-07 15:33:05,772 INFO L471 AbstractCegarLoop]: Abstraction has has 923 places, 933 transitions, 1891 flow [2024-11-07 15:33:05,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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 15:33:05,775 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:33:05,775 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:33:05,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 15:33:05,775 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-07 15:33:05,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:33:05,776 INFO L85 PathProgramCache]: Analyzing trace with hash 2131144648, now seen corresponding path program 1 times [2024-11-07 15:33:05,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:33:05,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647075969] [2024-11-07 15:33:05,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:33:05,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:33:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:33:05,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:33:05,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:33:05,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647075969] [2024-11-07 15:33:05,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647075969] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:33:05,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836256361] [2024-11-07 15:33:05,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:33:05,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:33:05,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:33:05,888 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:33:05,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 15:33:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:33:06,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 15:33:06,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:33:06,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:33:06,118 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:33:06,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:33:06,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836256361] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:33:06,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:33:06,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-07 15:33:06,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253683618] [2024-11-07 15:33:06,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:33:06,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:33:06,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:33:06,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:33:06,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:33:06,312 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 936 out of 1035 [2024-11-07 15:33:06,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 923 places, 933 transitions, 1891 flow. Second operand has 6 states, 6 states have (on average 938.1666666666666) internal successors, (5629), 6 states have internal predecessors, (5629), 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 15:33:06,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:33:06,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 936 of 1035 [2024-11-07 15:33:06,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:33:07,302 INFO L124 PetriNetUnfolderBase]: 247/4824 cut-off events. [2024-11-07 15:33:07,303 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-07 15:33:07,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5163 conditions, 4824 events. 247/4824 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 36252 event pairs, 110 based on Foata normal form. 2/4170 useless extension candidates. Maximal degree in co-relation 5015. Up to 305 conditions per place. [2024-11-07 15:33:07,335 INFO L140 encePairwiseOnDemand]: 1031/1035 looper letters, 29 selfloop transitions, 5 changer transitions 0/937 dead transitions. [2024-11-07 15:33:07,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 927 places, 937 transitions, 1969 flow [2024-11-07 15:33:07,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 15:33:07,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 15:33:07,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4716 transitions. [2024-11-07 15:33:07,342 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9113043478260869 [2024-11-07 15:33:07,342 INFO L175 Difference]: Start difference. First operand has 923 places, 933 transitions, 1891 flow. Second operand 5 states and 4716 transitions. [2024-11-07 15:33:07,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 927 places, 937 transitions, 1969 flow [2024-11-07 15:33:07,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 922 places, 937 transitions, 1959 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:33:07,354 INFO L231 Difference]: Finished difference. Result has 925 places, 935 transitions, 1911 flow [2024-11-07 15:33:07,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1035, PETRI_DIFFERENCE_MINUEND_FLOW=1881, PETRI_DIFFERENCE_MINUEND_PLACES=918, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=933, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=929, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1911, PETRI_PLACES=925, PETRI_TRANSITIONS=935} [2024-11-07 15:33:07,356 INFO L277 CegarLoopForPetriNet]: 949 programPoint places, -24 predicate places. [2024-11-07 15:33:07,357 INFO L471 AbstractCegarLoop]: Abstraction has has 925 places, 935 transitions, 1911 flow [2024-11-07 15:33:07,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 938.1666666666666) internal successors, (5629), 6 states have internal predecessors, (5629), 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 15:33:07,360 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:33:07,361 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:07,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 15:33:07,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:33:07,562 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-07 15:33:07,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:33:07,563 INFO L85 PathProgramCache]: Analyzing trace with hash -127760488, now seen corresponding path program 2 times [2024-11-07 15:33:07,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:33:07,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201126338] [2024-11-07 15:33:07,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:33:07,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:33:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:33:08,477 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-07 15:33:08,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:33:08,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201126338] [2024-11-07 15:33:08,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201126338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:33:08,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:33:08,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:33:08,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766222169] [2024-11-07 15:33:08,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:33:08,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:33:08,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:33:08,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:33:08,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:33:09,547 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1035 [2024-11-07 15:33:09,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 925 places, 935 transitions, 1911 flow. Second operand has 6 states, 6 states have (on average 731.3333333333334) internal successors, (4388), 6 states have internal predecessors, (4388), 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 15:33:09,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:33:09,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1035 [2024-11-07 15:33:09,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand