./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.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_2t.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', '16b049fb81e05ec2192b5dc6cabf7c8b89c1486d4e623332a0a01a89383c6c7d'] 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_2t.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 16b049fb81e05ec2192b5dc6cabf7c8b89c1486d4e623332a0a01a89383c6c7d --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 15:32:24,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 15:32:24,139 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-07 15:32:24,145 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 15:32:24,145 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 15:32:24,170 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 15:32:24,171 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 15:32:24,171 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 15:32:24,172 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 15:32:24,172 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 15:32:24,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 15:32:24,173 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 15:32:24,173 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 15:32:24,173 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 15:32:24,173 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 15:32:24,174 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 15:32:24,174 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 15:32:24,174 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 15:32:24,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 15:32:24,175 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 15:32:24,175 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 15:32:24,175 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 15:32:24,175 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-07 15:32:24,175 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 15:32:24,175 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 15:32:24,175 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 15:32:24,175 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 15:32:24,175 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 15:32:24,175 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 15:32:24,175 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 15:32:24,175 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 15:32:24,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:32:24,175 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 15:32:24,175 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 15:32:24,176 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 15:32:24,176 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 15:32:24,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 15:32:24,176 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 15:32:24,176 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 15:32:24,176 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 15:32:24,176 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 15:32:24,176 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 -> 16b049fb81e05ec2192b5dc6cabf7c8b89c1486d4e623332a0a01a89383c6c7d [2024-11-07 15:32:24,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 15:32:24,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 15:32:24,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 15:32:24,432 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 15:32:24,433 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 15:32:24,434 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i [2024-11-07 15:32:25,694 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 15:32:25,936 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 15:32:25,937 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i [2024-11-07 15:32:25,954 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/31b489858/817af3dcc6ab4a1db5cc953c96317636/FLAGfb4edb291 [2024-11-07 15:32:25,972 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/31b489858/817af3dcc6ab4a1db5cc953c96317636 [2024-11-07 15:32:25,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 15:32:25,975 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 15:32:25,976 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 15:32:25,976 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 15:32:25,980 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 15:32:25,981 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:32:25" (1/1) ... [2024-11-07 15:32:25,982 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55bb0daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:25, skipping insertion in model container [2024-11-07 15:32:25,982 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:32:25" (1/1) ... [2024-11-07 15:32:26,024 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 15:32:26,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:32:26,316 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 15:32:26,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:32:26,418 INFO L204 MainTranslator]: Completed translation [2024-11-07 15:32:26,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:26 WrapperNode [2024-11-07 15:32:26,419 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 15:32:26,420 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 15:32:26,420 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 15:32:26,420 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 15:32:26,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:26" (1/1) ... [2024-11-07 15:32:26,440 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:26" (1/1) ... [2024-11-07 15:32:26,488 INFO L138 Inliner]: procedures = 174, calls = 86, calls flagged for inlining = 20, calls inlined = 35, statements flattened = 881 [2024-11-07 15:32:26,488 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 15:32:26,489 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 15:32:26,489 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 15:32:26,489 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 15:32:26,497 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:26" (1/1) ... [2024-11-07 15:32:26,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:26" (1/1) ... [2024-11-07 15:32:26,509 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:26" (1/1) ... [2024-11-07 15:32:26,509 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:26" (1/1) ... [2024-11-07 15:32:26,559 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:26" (1/1) ... [2024-11-07 15:32:26,570 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:26" (1/1) ... [2024-11-07 15:32:26,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:26" (1/1) ... [2024-11-07 15:32:26,583 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:26" (1/1) ... [2024-11-07 15:32:26,590 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 15:32:26,591 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 15:32:26,591 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 15:32:26,591 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 15:32:26,592 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:26" (1/1) ... [2024-11-07 15:32:26,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:32:26,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:32:26,626 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 15:32:26,629 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 15:32:26,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-07 15:32:26,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-07 15:32:26,657 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 15:32:26,658 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2024-11-07 15:32:26,658 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2024-11-07 15:32:26,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 15:32:26,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-07 15:32:26,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 15:32:26,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-07 15:32:26,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 15:32:26,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-07 15:32:26,658 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 15:32:26,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 15:32:26,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 15:32:26,661 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 15:32:26,849 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 15:32:26,851 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 15:32:28,052 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 15:32:28,053 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 15:32:28,125 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 15:32:28,128 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-07 15:32:28,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:32:28 BoogieIcfgContainer [2024-11-07 15:32:28,128 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 15:32:28,130 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 15:32:28,130 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 15:32:28,135 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 15:32:28,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:32:25" (1/3) ... [2024-11-07 15:32:28,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63582a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:32:28, skipping insertion in model container [2024-11-07 15:32:28,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:32:26" (2/3) ... [2024-11-07 15:32:28,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63582a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:32:28, skipping insertion in model container [2024-11-07 15:32:28,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:32:28" (3/3) ... [2024-11-07 15:32:28,137 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_2t.i [2024-11-07 15:32:28,152 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 15:32:28,152 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 77 error locations. [2024-11-07 15:32:28,153 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 15:32:28,361 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-07 15:32:28,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 944 places, 1030 transitions, 2067 flow [2024-11-07 15:32:28,992 INFO L124 PetriNetUnfolderBase]: 135/1528 cut-off events. [2024-11-07 15:32:28,994 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 15:32:29,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1533 conditions, 1528 events. 135/1528 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 5611 event pairs, 0 based on Foata normal form. 0/1275 useless extension candidates. Maximal degree in co-relation 924. Up to 4 conditions per place. [2024-11-07 15:32:29,039 INFO L82 GeneralOperation]: Start removeDead. Operand has 944 places, 1030 transitions, 2067 flow [2024-11-07 15:32:29,069 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 944 places, 1030 transitions, 2067 flow [2024-11-07 15:32:29,077 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:32:29,093 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;@20ab3138, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:32:29,094 INFO L334 AbstractCegarLoop]: Starting to check reachability of 112 error locations. [2024-11-07 15:32:29,103 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:32:29,103 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2024-11-07 15:32:29,104 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:32:29,104 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:32:29,104 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 15:32:29,105 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 15:32:29,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:32:29,110 INFO L85 PathProgramCache]: Analyzing trace with hash 600619363, now seen corresponding path program 1 times [2024-11-07 15:32:29,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:32:29,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458521028] [2024-11-07 15:32:29,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:32:29,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:32:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:32:30,126 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 15:32:30,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:32:30,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458521028] [2024-11-07 15:32:30,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458521028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:32:30,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:32:30,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:32:30,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813334736] [2024-11-07 15:32:30,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:32:30,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:32:30,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:32:30,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:32:30,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:32:31,684 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 1030 [2024-11-07 15:32:31,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 944 places, 1030 transitions, 2067 flow. Second operand has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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 15:32:31,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:32:31,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 1030 [2024-11-07 15:32:31,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:32:41,731 INFO L124 PetriNetUnfolderBase]: 12711/59452 cut-off events. [2024-11-07 15:32:41,732 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-07 15:32:41,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82853 conditions, 59452 events. 12711/59452 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 692004 event pairs, 11413 based on Foata normal form. 7001/59285 useless extension candidates. Maximal degree in co-relation 82164. Up to 23391 conditions per place. [2024-11-07 15:32:42,219 INFO L140 encePairwiseOnDemand]: 954/1030 looper letters, 231 selfloop transitions, 5 changer transitions 3/932 dead transitions. [2024-11-07 15:32:42,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 921 places, 932 transitions, 2343 flow [2024-11-07 15:32:42,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:32:42,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:32:42,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4645 transitions. [2024-11-07 15:32:42,253 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7516181229773463 [2024-11-07 15:32:42,255 INFO L175 Difference]: Start difference. First operand has 944 places, 1030 transitions, 2067 flow. Second operand 6 states and 4645 transitions. [2024-11-07 15:32:42,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 921 places, 932 transitions, 2343 flow [2024-11-07 15:32:42,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 921 places, 932 transitions, 2343 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:32:42,286 INFO L231 Difference]: Finished difference. Result has 921 places, 929 transitions, 1875 flow [2024-11-07 15:32:42,289 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=1871, PETRI_DIFFERENCE_MINUEND_PLACES=916, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=932, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=927, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1875, PETRI_PLACES=921, PETRI_TRANSITIONS=929} [2024-11-07 15:32:42,293 INFO L277 CegarLoopForPetriNet]: 944 programPoint places, -23 predicate places. [2024-11-07 15:32:42,295 INFO L471 AbstractCegarLoop]: Abstraction has has 921 places, 929 transitions, 1875 flow [2024-11-07 15:32:42,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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 15:32:42,298 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:32:42,298 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] [2024-11-07 15:32:42,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 15:32:42,299 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 15:32:42,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:32:42,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1490572193, now seen corresponding path program 1 times [2024-11-07 15:32:42,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:32:42,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272396455] [2024-11-07 15:32:42,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:32:42,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:32:42,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:32:42,380 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 15:32:42,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:32:42,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272396455] [2024-11-07 15:32:42,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272396455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:32:42,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:32:42,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:32:42,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095514928] [2024-11-07 15:32:42,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:32:42,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:32:42,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:32:42,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:32:42,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:32:42,436 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 932 out of 1030 [2024-11-07 15:32:42,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 921 places, 929 transitions, 1875 flow. Second operand has 3 states, 3 states have (on average 933.3333333333334) internal successors, (2800), 3 states have internal predecessors, (2800), 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 15:32:42,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:32:42,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 932 of 1030 [2024-11-07 15:32:42,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:32:43,291 INFO L124 PetriNetUnfolderBase]: 247/4793 cut-off events. [2024-11-07 15:32:43,292 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-07 15:32:43,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5116 conditions, 4793 events. 247/4793 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 36256 event pairs, 110 based on Foata normal form. 1/4134 useless extension candidates. Maximal degree in co-relation 5032. Up to 306 conditions per place. [2024-11-07 15:32:43,327 INFO L140 encePairwiseOnDemand]: 1027/1030 looper letters, 27 selfloop transitions, 2 changer transitions 0/930 dead transitions. [2024-11-07 15:32:43,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 920 places, 930 transitions, 1935 flow [2024-11-07 15:32:43,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:32:43,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:32:43,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2826 transitions. [2024-11-07 15:32:43,333 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9145631067961165 [2024-11-07 15:32:43,333 INFO L175 Difference]: Start difference. First operand has 921 places, 929 transitions, 1875 flow. Second operand 3 states and 2826 transitions. [2024-11-07 15:32:43,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 920 places, 930 transitions, 1935 flow [2024-11-07 15:32:43,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 915 places, 930 transitions, 1925 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:32:43,348 INFO L231 Difference]: Finished difference. Result has 916 places, 930 transitions, 1877 flow [2024-11-07 15:32:43,349 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=1865, PETRI_DIFFERENCE_MINUEND_PLACES=913, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=929, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=927, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1877, PETRI_PLACES=916, PETRI_TRANSITIONS=930} [2024-11-07 15:32:43,350 INFO L277 CegarLoopForPetriNet]: 944 programPoint places, -28 predicate places. [2024-11-07 15:32:43,350 INFO L471 AbstractCegarLoop]: Abstraction has has 916 places, 930 transitions, 1877 flow [2024-11-07 15:32:43,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 933.3333333333334) internal successors, (2800), 3 states have internal predecessors, (2800), 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 15:32:43,352 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:32:43,352 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] [2024-11-07 15:32:43,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 15:32:43,353 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 15:32:43,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:32:43,353 INFO L85 PathProgramCache]: Analyzing trace with hash 2108364158, now seen corresponding path program 1 times [2024-11-07 15:32:43,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:32:43,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968769632] [2024-11-07 15:32:43,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:32:43,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:32:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:32:43,736 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 15:32:43,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:32:43,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968769632] [2024-11-07 15:32:43,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968769632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:32:43,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:32:43,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:32:43,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238513319] [2024-11-07 15:32:43,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:32:43,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:32:43,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:32:43,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:32:43,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:32:45,426 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 1030 [2024-11-07 15:32:45,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 916 places, 930 transitions, 1877 flow. Second operand has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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 15:32:45,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:32:45,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 1030 [2024-11-07 15:32:45,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:32:53,798 INFO L124 PetriNetUnfolderBase]: 12711/59476 cut-off events. [2024-11-07 15:32:53,798 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-07 15:32:53,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82892 conditions, 59476 events. 12711/59476 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 692571 event pairs, 11413 based on Foata normal form. 0/52310 useless extension candidates. Maximal degree in co-relation 82813. Up to 23394 conditions per place. [2024-11-07 15:32:54,027 INFO L140 encePairwiseOnDemand]: 1024/1030 looper letters, 232 selfloop transitions, 5 changer transitions 0/929 dead transitions. [2024-11-07 15:32:54,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 920 places, 929 transitions, 2349 flow [2024-11-07 15:32:54,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:32:54,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:32:54,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4575 transitions. [2024-11-07 15:32:54,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7402912621359223 [2024-11-07 15:32:54,039 INFO L175 Difference]: Start difference. First operand has 916 places, 930 transitions, 1877 flow. Second operand 6 states and 4575 transitions. [2024-11-07 15:32:54,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 920 places, 929 transitions, 2349 flow [2024-11-07 15:32:54,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 919 places, 929 transitions, 2347 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:32:54,055 INFO L231 Difference]: Finished difference. Result has 919 places, 929 transitions, 1883 flow [2024-11-07 15:32:54,057 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=1873, PETRI_DIFFERENCE_MINUEND_PLACES=914, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=929, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=924, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1883, PETRI_PLACES=919, PETRI_TRANSITIONS=929} [2024-11-07 15:32:54,057 INFO L277 CegarLoopForPetriNet]: 944 programPoint places, -25 predicate places. [2024-11-07 15:32:54,057 INFO L471 AbstractCegarLoop]: Abstraction has has 919 places, 929 transitions, 1883 flow [2024-11-07 15:32:54,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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 15:32:54,060 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:32:54,060 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] [2024-11-07 15:32:54,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 15:32:54,060 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 15:32:54,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:32:54,061 INFO L85 PathProgramCache]: Analyzing trace with hash -642127249, now seen corresponding path program 1 times [2024-11-07 15:32:54,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:32:54,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18901446] [2024-11-07 15:32:54,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:32:54,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:32:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:32:54,492 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 15:32:54,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:32:54,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18901446] [2024-11-07 15:32:54,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18901446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:32:54,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:32:54,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:32:54,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831007528] [2024-11-07 15:32:54,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:32:54,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:32:54,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:32:54,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:32:54,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:32:55,750 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 1030 [2024-11-07 15:32:55,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 919 places, 929 transitions, 1883 flow. Second operand has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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 15:32:55,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:32:55,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 1030 [2024-11-07 15:32:55,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:33:04,263 INFO L124 PetriNetUnfolderBase]: 12711/59474 cut-off events. [2024-11-07 15:33:04,263 INFO L125 PetriNetUnfolderBase]: For 6/9 co-relation queries the response was YES. [2024-11-07 15:33:04,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82899 conditions, 59474 events. 12711/59474 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 692295 event pairs, 11413 based on Foata normal form. 0/52310 useless extension candidates. Maximal degree in co-relation 82806. Up to 23394 conditions per place. [2024-11-07 15:33:04,470 INFO L140 encePairwiseOnDemand]: 1024/1030 looper letters, 232 selfloop transitions, 5 changer transitions 0/928 dead transitions. [2024-11-07 15:33:04,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 923 places, 928 transitions, 2355 flow [2024-11-07 15:33:04,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:33:04,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:33:04,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4575 transitions. [2024-11-07 15:33:04,479 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7402912621359223 [2024-11-07 15:33:04,479 INFO L175 Difference]: Start difference. First operand has 919 places, 929 transitions, 1883 flow. Second operand 6 states and 4575 transitions. [2024-11-07 15:33:04,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 923 places, 928 transitions, 2355 flow [2024-11-07 15:33:04,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 918 places, 928 transitions, 2345 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:33:04,493 INFO L231 Difference]: Finished difference. Result has 918 places, 928 transitions, 1881 flow [2024-11-07 15:33:04,495 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=1871, PETRI_DIFFERENCE_MINUEND_PLACES=913, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=928, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=923, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1881, PETRI_PLACES=918, PETRI_TRANSITIONS=928} [2024-11-07 15:33:04,495 INFO L277 CegarLoopForPetriNet]: 944 programPoint places, -26 predicate places. [2024-11-07 15:33:04,496 INFO L471 AbstractCegarLoop]: Abstraction has has 918 places, 928 transitions, 1881 flow [2024-11-07 15:33:04,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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 15:33:04,498 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:33:04,499 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] [2024-11-07 15:33:04,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 15:33:04,499 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 15:33:04,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:33:04,499 INFO L85 PathProgramCache]: Analyzing trace with hash 235223968, now seen corresponding path program 1 times [2024-11-07 15:33:04,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:33:04,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577127820] [2024-11-07 15:33:04,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:33:04,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:33:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:33:04,598 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 15:33:04,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:33:04,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577127820] [2024-11-07 15:33:04,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577127820] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:33:04,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199279411] [2024-11-07 15:33:04,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:33:04,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:33:04,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:33:04,603 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 15:33:04,604 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 15:33:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:33:04,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 15:33:04,746 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:33:04,826 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 15:33:04,826 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:33:04,887 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 15:33:04,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199279411] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:33:04,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:33:04,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2024-11-07 15:33:04,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007097974] [2024-11-07 15:33:04,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:33:04,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 15:33:04,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:33:04,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 15:33:04,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-07 15:33:04,975 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 931 out of 1030 [2024-11-07 15:33:04,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 918 places, 928 transitions, 1881 flow. Second operand has 5 states, 5 states have (on average 932.8) internal successors, (4664), 5 states have internal predecessors, (4664), 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 15:33:04,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:33:04,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 931 of 1030 [2024-11-07 15:33:04,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:33:05,800 INFO L124 PetriNetUnfolderBase]: 247/4791 cut-off events. [2024-11-07 15:33:05,800 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-07 15:33:05,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5122 conditions, 4791 events. 247/4791 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 36313 event pairs, 110 based on Foata normal form. 1/4136 useless extension candidates. Maximal degree in co-relation 5015. Up to 305 conditions per place. [2024-11-07 15:33:05,826 INFO L140 encePairwiseOnDemand]: 1026/1030 looper letters, 28 selfloop transitions, 4 changer transitions 0/930 dead transitions. [2024-11-07 15:33:05,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 921 places, 930 transitions, 1949 flow [2024-11-07 15:33:05,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 15:33:05,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 15:33:05,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3757 transitions. [2024-11-07 15:33:05,833 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9118932038834952 [2024-11-07 15:33:05,833 INFO L175 Difference]: Start difference. First operand has 918 places, 928 transitions, 1881 flow. Second operand 4 states and 3757 transitions. [2024-11-07 15:33:05,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 921 places, 930 transitions, 1949 flow [2024-11-07 15:33:05,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 916 places, 930 transitions, 1939 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:33:05,849 INFO L231 Difference]: Finished difference. Result has 918 places, 929 transitions, 1891 flow [2024-11-07 15:33:05,853 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=1871, PETRI_DIFFERENCE_MINUEND_PLACES=913, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=928, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=924, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1891, PETRI_PLACES=918, PETRI_TRANSITIONS=929} [2024-11-07 15:33:05,854 INFO L277 CegarLoopForPetriNet]: 944 programPoint places, -26 predicate places. [2024-11-07 15:33:05,856 INFO L471 AbstractCegarLoop]: Abstraction has has 918 places, 929 transitions, 1891 flow [2024-11-07 15:33:05,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 932.8) internal successors, (4664), 5 states have internal predecessors, (4664), 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 15:33:05,859 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:33:05,859 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:33:05,877 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 15:33:06,060 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 15:33:06,060 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 15:33:06,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:33:06,061 INFO L85 PathProgramCache]: Analyzing trace with hash -956940513, now seen corresponding path program 2 times [2024-11-07 15:33:06,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:33:06,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032786202] [2024-11-07 15:33:06,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:33:06,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:33:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:33:06,661 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-07 15:33:06,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:33:06,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032786202] [2024-11-07 15:33:06,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032786202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:33:06,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:33:06,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:33:06,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919833746] [2024-11-07 15:33:06,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:33:06,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:33:06,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:33:06,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:33:06,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:33:07,796 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 1030 [2024-11-07 15:33:07,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 918 places, 929 transitions, 1891 flow. Second operand has 6 states, 6 states have (on average 726.3333333333334) internal successors, (4358), 6 states have internal predecessors, (4358), 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 15:33:07,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:33:07,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 1030 [2024-11-07 15:33:07,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:33:16,378 INFO L124 PetriNetUnfolderBase]: 12501/59027 cut-off events. [2024-11-07 15:33:16,378 INFO L125 PetriNetUnfolderBase]: For 13/16 co-relation queries the response was YES. [2024-11-07 15:33:16,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82051 conditions, 59027 events. 12501/59027 cut-off events. For 13/16 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 688435 event pairs, 11211 based on Foata normal form. 0/51923 useless extension candidates. Maximal degree in co-relation 81921. Up to 22997 conditions per place. [2024-11-07 15:33:16,605 INFO L140 encePairwiseOnDemand]: 1024/1030 looper letters, 231 selfloop transitions, 5 changer transitions 0/928 dead transitions. [2024-11-07 15:33:16,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 922 places, 928 transitions, 2361 flow [2024-11-07 15:33:16,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:33:16,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:33:16,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4575 transitions. [2024-11-07 15:33:16,610 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7402912621359223 [2024-11-07 15:33:16,610 INFO L175 Difference]: Start difference. First operand has 918 places, 929 transitions, 1891 flow. Second operand 6 states and 4575 transitions. [2024-11-07 15:33:16,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 922 places, 928 transitions, 2361 flow [2024-11-07 15:33:16,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 921 places, 928 transitions, 2357 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-07 15:33:16,625 INFO L231 Difference]: Finished difference. Result has 921 places, 928 transitions, 1895 flow [2024-11-07 15:33:16,626 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=1885, PETRI_DIFFERENCE_MINUEND_PLACES=916, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=928, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=923, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1895, PETRI_PLACES=921, PETRI_TRANSITIONS=928} [2024-11-07 15:33:16,627 INFO L277 CegarLoopForPetriNet]: 944 programPoint places, -23 predicate places. [2024-11-07 15:33:16,627 INFO L471 AbstractCegarLoop]: Abstraction has has 921 places, 928 transitions, 1895 flow [2024-11-07 15:33:16,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 726.3333333333334) internal successors, (4358), 6 states have internal predecessors, (4358), 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 15:33:16,630 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:33:16,630 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:33:16,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 15:33:16,630 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-07 15:33:16,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:33:16,631 INFO L85 PathProgramCache]: Analyzing trace with hash 297741395, now seen corresponding path program 1 times [2024-11-07 15:33:16,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:33:16,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936265676] [2024-11-07 15:33:16,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:33:16,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:33:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:33:17,327 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-07 15:33:17,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:33:17,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936265676] [2024-11-07 15:33:17,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936265676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:33:17,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:33:17,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:33:17,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877406330] [2024-11-07 15:33:17,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:33:17,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:33:17,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:33:17,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:33:17,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30