./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.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', '7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.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 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 15:34:31,599 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 15:34:31,674 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-07 15:34:31,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 15:34:31,681 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 15:34:31,710 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 15:34:31,713 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 15:34:31,714 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 15:34:31,714 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 15:34:31,714 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 15:34:31,715 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 15:34:31,716 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 15:34:31,716 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 15:34:31,716 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 15:34:31,716 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 15:34:31,716 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 15:34:31,716 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 15:34:31,716 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 15:34:31,717 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 15:34:31,717 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 15:34:31,717 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 15:34:31,717 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 15:34:31,718 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-07 15:34:31,718 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 15:34:31,718 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 15:34:31,718 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 15:34:31,718 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 15:34:31,718 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 15:34:31,718 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 15:34:31,718 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 15:34:31,718 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 15:34:31,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:34:31,719 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 15:34:31,719 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 15:34:31,719 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 15:34:31,719 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 15:34:31,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 15:34:31,720 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 15:34:31,720 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 15:34:31,720 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 15:34:31,720 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 15:34:31,720 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 -> 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 [2024-11-07 15:34:32,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 15:34:32,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 15:34:32,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 15:34:32,152 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 15:34:32,152 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 15:34:32,153 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2024-11-07 15:34:33,437 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 15:34:33,737 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 15:34:33,737 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2024-11-07 15:34:33,754 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b33af9d2d/e952c791a258443e8b9de0fca0c0c192/FLAG6ec92136c [2024-11-07 15:34:34,042 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b33af9d2d/e952c791a258443e8b9de0fca0c0c192 [2024-11-07 15:34:34,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 15:34:34,045 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 15:34:34,046 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 15:34:34,046 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 15:34:34,049 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 15:34:34,050 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:34:34" (1/1) ... [2024-11-07 15:34:34,050 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27ab6c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:34, skipping insertion in model container [2024-11-07 15:34:34,050 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:34:34" (1/1) ... [2024-11-07 15:34:34,094 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 15:34:34,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:34:34,480 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 15:34:34,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:34:34,608 INFO L204 MainTranslator]: Completed translation [2024-11-07 15:34:34,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:34 WrapperNode [2024-11-07 15:34:34,610 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 15:34:34,611 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 15:34:34,611 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 15:34:34,611 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 15:34:34,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:34" (1/1) ... [2024-11-07 15:34:34,639 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:34" (1/1) ... [2024-11-07 15:34:34,663 INFO L138 Inliner]: procedures = 266, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2024-11-07 15:34:34,663 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 15:34:34,664 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 15:34:34,664 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 15:34:34,664 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 15:34:34,671 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:34" (1/1) ... [2024-11-07 15:34:34,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:34" (1/1) ... [2024-11-07 15:34:34,676 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:34" (1/1) ... [2024-11-07 15:34:34,680 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:34" (1/1) ... [2024-11-07 15:34:34,691 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:34" (1/1) ... [2024-11-07 15:34:34,693 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:34" (1/1) ... [2024-11-07 15:34:34,696 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:34" (1/1) ... [2024-11-07 15:34:34,701 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:34" (1/1) ... [2024-11-07 15:34:34,702 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 15:34:34,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 15:34:34,706 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 15:34:34,706 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 15:34:34,707 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:34" (1/1) ... [2024-11-07 15:34:34,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:34:34,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:34:34,743 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 15:34:34,746 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 15:34:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 15:34:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-07 15:34:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 15:34:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 15:34:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-07 15:34:34,767 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-07 15:34:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-07 15:34:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 15:34:34,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 15:34:34,768 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 15:34:34,889 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 15:34:34,890 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 15:34:35,045 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 15:34:35,045 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 15:34:35,077 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 15:34:35,077 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 15:34:35,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:34:35 BoogieIcfgContainer [2024-11-07 15:34:35,077 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 15:34:35,080 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 15:34:35,080 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 15:34:35,084 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 15:34:35,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:34:34" (1/3) ... [2024-11-07 15:34:35,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79870da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:34:35, skipping insertion in model container [2024-11-07 15:34:35,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:34" (2/3) ... [2024-11-07 15:34:35,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79870da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:34:35, skipping insertion in model container [2024-11-07 15:34:35,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:34:35" (3/3) ... [2024-11-07 15:34:35,086 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2024-11-07 15:34:35,098 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 15:34:35,099 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 15:34:35,099 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 15:34:35,147 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 15:34:35,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 81 transitions, 166 flow [2024-11-07 15:34:35,234 INFO L124 PetriNetUnfolderBase]: 1/80 cut-off events. [2024-11-07 15:34:35,238 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:34:35,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 1/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-11-07 15:34:35,243 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 81 transitions, 166 flow [2024-11-07 15:34:35,247 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 80 transitions, 163 flow [2024-11-07 15:34:35,259 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:34:35,268 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;@2e9ddf90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:34:35,269 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-07 15:34:35,290 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:34:35,290 INFO L124 PetriNetUnfolderBase]: 1/58 cut-off events. [2024-11-07 15:34:35,290 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:34:35,290 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:35,291 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 15:34:35,291 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:34:35,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:35,296 INFO L85 PathProgramCache]: Analyzing trace with hash 986417451, now seen corresponding path program 1 times [2024-11-07 15:34:35,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:35,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418723665] [2024-11-07 15:34:35,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:35,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:36,157 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 15:34:36,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:36,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418723665] [2024-11-07 15:34:36,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418723665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:36,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:36,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:34:36,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667451448] [2024-11-07 15:34:36,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:36,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:34:36,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:36,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:34:36,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:34:36,352 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 81 [2024-11-07 15:34:36,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 80 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 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 15:34:36,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:36,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 81 [2024-11-07 15:34:36,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:36,574 INFO L124 PetriNetUnfolderBase]: 79/347 cut-off events. [2024-11-07 15:34:36,574 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 15:34:36,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 347 events. 79/347 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1519 event pairs, 25 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 484. Up to 130 conditions per place. [2024-11-07 15:34:36,583 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 21 selfloop transitions, 22 changer transitions 4/109 dead transitions. [2024-11-07 15:34:36,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 109 transitions, 315 flow [2024-11-07 15:34:36,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:34:36,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:34:36,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 426 transitions. [2024-11-07 15:34:36,599 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8765432098765432 [2024-11-07 15:34:36,601 INFO L175 Difference]: Start difference. First operand has 83 places, 80 transitions, 163 flow. Second operand 6 states and 426 transitions. [2024-11-07 15:34:36,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 109 transitions, 315 flow [2024-11-07 15:34:36,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 109 transitions, 314 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:34:36,610 INFO L231 Difference]: Finished difference. Result has 92 places, 101 transitions, 312 flow [2024-11-07 15:34:36,613 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=92, PETRI_TRANSITIONS=101} [2024-11-07 15:34:36,618 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 9 predicate places. [2024-11-07 15:34:36,619 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 101 transitions, 312 flow [2024-11-07 15:34:36,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 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 15:34:36,620 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:36,620 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:34:36,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 15:34:36,621 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:34:36,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:36,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1846228120, now seen corresponding path program 1 times [2024-11-07 15:34:36,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:36,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412231125] [2024-11-07 15:34:36,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:36,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:36,992 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 15:34:36,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:36,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412231125] [2024-11-07 15:34:36,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412231125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:36,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:36,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:34:36,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87930238] [2024-11-07 15:34:36,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:36,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:34:36,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:36,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:34:36,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:34:37,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 81 [2024-11-07 15:34:37,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 101 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 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 15:34:37,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:37,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 81 [2024-11-07 15:34:37,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:37,231 INFO L124 PetriNetUnfolderBase]: 144/520 cut-off events. [2024-11-07 15:34:37,231 INFO L125 PetriNetUnfolderBase]: For 144/146 co-relation queries the response was YES. [2024-11-07 15:34:37,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 520 events. 144/520 cut-off events. For 144/146 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2603 event pairs, 43 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 1108. Up to 241 conditions per place. [2024-11-07 15:34:37,241 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 38 selfloop transitions, 29 changer transitions 7/136 dead transitions. [2024-11-07 15:34:37,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 136 transitions, 600 flow [2024-11-07 15:34:37,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:34:37,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:34:37,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 416 transitions. [2024-11-07 15:34:37,248 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8559670781893004 [2024-11-07 15:34:37,248 INFO L175 Difference]: Start difference. First operand has 92 places, 101 transitions, 312 flow. Second operand 6 states and 416 transitions. [2024-11-07 15:34:37,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 136 transitions, 600 flow [2024-11-07 15:34:37,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 136 transitions, 600 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:34:37,258 INFO L231 Difference]: Finished difference. Result has 102 places, 125 transitions, 566 flow [2024-11-07 15:34:37,259 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=566, PETRI_PLACES=102, PETRI_TRANSITIONS=125} [2024-11-07 15:34:37,260 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 19 predicate places. [2024-11-07 15:34:37,261 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 125 transitions, 566 flow [2024-11-07 15:34:37,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 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 15:34:37,261 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:37,261 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] [2024-11-07 15:34:37,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 15:34:37,262 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:34:37,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:37,263 INFO L85 PathProgramCache]: Analyzing trace with hash 878789003, now seen corresponding path program 1 times [2024-11-07 15:34:37,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:37,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699869286] [2024-11-07 15:34:37,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:37,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:37,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:34:37,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:37,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699869286] [2024-11-07 15:34:37,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699869286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:37,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:37,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 15:34:37,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45061897] [2024-11-07 15:34:37,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:37,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 15:34:37,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:37,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 15:34:37,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-07 15:34:37,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 81 [2024-11-07 15:34:37,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 125 transitions, 566 flow. Second operand has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 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 15:34:37,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:37,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 81 [2024-11-07 15:34:37,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:38,004 INFO L124 PetriNetUnfolderBase]: 88/454 cut-off events. [2024-11-07 15:34:38,004 INFO L125 PetriNetUnfolderBase]: For 188/192 co-relation queries the response was YES. [2024-11-07 15:34:38,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1083 conditions, 454 events. 88/454 cut-off events. For 188/192 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2341 event pairs, 7 based on Foata normal form. 2/454 useless extension candidates. Maximal degree in co-relation 862. Up to 83 conditions per place. [2024-11-07 15:34:38,008 INFO L140 encePairwiseOnDemand]: 73/81 looper letters, 11 selfloop transitions, 4 changer transitions 13/137 dead transitions. [2024-11-07 15:34:38,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 137 transitions, 646 flow [2024-11-07 15:34:38,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 15:34:38,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 15:34:38,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 491 transitions. [2024-11-07 15:34:38,010 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8659611992945326 [2024-11-07 15:34:38,010 INFO L175 Difference]: Start difference. First operand has 102 places, 125 transitions, 566 flow. Second operand 7 states and 491 transitions. [2024-11-07 15:34:38,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 137 transitions, 646 flow [2024-11-07 15:34:38,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 137 transitions, 628 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-07 15:34:38,024 INFO L231 Difference]: Finished difference. Result has 111 places, 123 transitions, 562 flow [2024-11-07 15:34:38,024 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=562, PETRI_PLACES=111, PETRI_TRANSITIONS=123} [2024-11-07 15:34:38,026 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 28 predicate places. [2024-11-07 15:34:38,026 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 123 transitions, 562 flow [2024-11-07 15:34:38,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 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 15:34:38,026 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:38,027 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] [2024-11-07 15:34:38,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 15:34:38,027 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:34:38,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:38,028 INFO L85 PathProgramCache]: Analyzing trace with hash -752278149, now seen corresponding path program 1 times [2024-11-07 15:34:38,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:38,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604730887] [2024-11-07 15:34:38,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:38,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:38,540 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 15:34:38,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:38,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604730887] [2024-11-07 15:34:38,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604730887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:38,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:38,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 15:34:38,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480769557] [2024-11-07 15:34:38,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:38,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 15:34:38,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:38,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 15:34:38,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-07 15:34:39,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-07 15:34:39,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 123 transitions, 562 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:39,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:39,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-07 15:34:39,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:39,738 INFO L124 PetriNetUnfolderBase]: 241/702 cut-off events. [2024-11-07 15:34:39,738 INFO L125 PetriNetUnfolderBase]: For 686/692 co-relation queries the response was YES. [2024-11-07 15:34:39,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2193 conditions, 702 events. 241/702 cut-off events. For 686/692 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3587 event pairs, 24 based on Foata normal form. 15/715 useless extension candidates. Maximal degree in co-relation 2136. Up to 144 conditions per place. [2024-11-07 15:34:39,744 INFO L140 encePairwiseOnDemand]: 65/81 looper letters, 105 selfloop transitions, 41 changer transitions 34/230 dead transitions. [2024-11-07 15:34:39,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 230 transitions, 1560 flow [2024-11-07 15:34:39,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 15:34:39,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-07 15:34:39,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 846 transitions. [2024-11-07 15:34:39,747 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6962962962962963 [2024-11-07 15:34:39,747 INFO L175 Difference]: Start difference. First operand has 111 places, 123 transitions, 562 flow. Second operand 15 states and 846 transitions. [2024-11-07 15:34:39,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 230 transitions, 1560 flow [2024-11-07 15:34:39,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 230 transitions, 1532 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-07 15:34:39,757 INFO L231 Difference]: Finished difference. Result has 127 places, 146 transitions, 908 flow [2024-11-07 15:34:39,758 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=908, PETRI_PLACES=127, PETRI_TRANSITIONS=146} [2024-11-07 15:34:39,758 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 44 predicate places. [2024-11-07 15:34:39,758 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 146 transitions, 908 flow [2024-11-07 15:34:39,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:39,759 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:39,759 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] [2024-11-07 15:34:39,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 15:34:39,760 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:34:39,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:39,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1100070851, now seen corresponding path program 2 times [2024-11-07 15:34:39,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:39,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129386398] [2024-11-07 15:34:39,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:39,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:40,256 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 15:34:40,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:40,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129386398] [2024-11-07 15:34:40,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129386398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:40,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:40,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 15:34:40,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670791408] [2024-11-07 15:34:40,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:40,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 15:34:40,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:40,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 15:34:40,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-07 15:34:40,839 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-07 15:34:40,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 146 transitions, 908 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:40,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:40,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-07 15:34:40,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:41,374 INFO L124 PetriNetUnfolderBase]: 206/641 cut-off events. [2024-11-07 15:34:41,375 INFO L125 PetriNetUnfolderBase]: For 1660/1672 co-relation queries the response was YES. [2024-11-07 15:34:41,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2506 conditions, 641 events. 206/641 cut-off events. For 1660/1672 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3363 event pairs, 38 based on Foata normal form. 17/656 useless extension candidates. Maximal degree in co-relation 2429. Up to 290 conditions per place. [2024-11-07 15:34:41,385 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 75 selfloop transitions, 39 changer transitions 32/196 dead transitions. [2024-11-07 15:34:41,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 196 transitions, 1494 flow [2024-11-07 15:34:41,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 15:34:41,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-07 15:34:41,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 752 transitions. [2024-11-07 15:34:41,390 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7141500474833808 [2024-11-07 15:34:41,391 INFO L175 Difference]: Start difference. First operand has 127 places, 146 transitions, 908 flow. Second operand 13 states and 752 transitions. [2024-11-07 15:34:41,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 196 transitions, 1494 flow [2024-11-07 15:34:41,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 196 transitions, 1416 flow, removed 6 selfloop flow, removed 10 redundant places. [2024-11-07 15:34:41,412 INFO L231 Difference]: Finished difference. Result has 130 places, 146 transitions, 977 flow [2024-11-07 15:34:41,412 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=977, PETRI_PLACES=130, PETRI_TRANSITIONS=146} [2024-11-07 15:34:41,413 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 47 predicate places. [2024-11-07 15:34:41,413 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 146 transitions, 977 flow [2024-11-07 15:34:41,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:41,415 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:41,415 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] [2024-11-07 15:34:41,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 15:34:41,415 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:34:41,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:41,416 INFO L85 PathProgramCache]: Analyzing trace with hash -765698169, now seen corresponding path program 3 times [2024-11-07 15:34:41,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:41,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779332907] [2024-11-07 15:34:41,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:41,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:41,856 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 15:34:41,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:41,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779332907] [2024-11-07 15:34:41,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779332907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:41,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:41,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 15:34:41,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282817852] [2024-11-07 15:34:41,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:41,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 15:34:41,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:41,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 15:34:41,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-07 15:34:42,514 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-07 15:34:42,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 146 transitions, 977 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:42,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:42,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-07 15:34:42,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:43,151 INFO L124 PetriNetUnfolderBase]: 289/838 cut-off events. [2024-11-07 15:34:43,152 INFO L125 PetriNetUnfolderBase]: For 3142/3158 co-relation queries the response was YES. [2024-11-07 15:34:43,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3563 conditions, 838 events. 289/838 cut-off events. For 3142/3158 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4758 event pairs, 32 based on Foata normal form. 20/855 useless extension candidates. Maximal degree in co-relation 3485. Up to 280 conditions per place. [2024-11-07 15:34:43,163 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 132 selfloop transitions, 62 changer transitions 15/259 dead transitions. [2024-11-07 15:34:43,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 259 transitions, 2389 flow [2024-11-07 15:34:43,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 15:34:43,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-07 15:34:43,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 847 transitions. [2024-11-07 15:34:43,167 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.697119341563786 [2024-11-07 15:34:43,167 INFO L175 Difference]: Start difference. First operand has 130 places, 146 transitions, 977 flow. Second operand 15 states and 847 transitions. [2024-11-07 15:34:43,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 259 transitions, 2389 flow [2024-11-07 15:34:43,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 259 transitions, 2271 flow, removed 9 selfloop flow, removed 10 redundant places. [2024-11-07 15:34:43,191 INFO L231 Difference]: Finished difference. Result has 140 places, 184 transitions, 1566 flow [2024-11-07 15:34:43,193 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1566, PETRI_PLACES=140, PETRI_TRANSITIONS=184} [2024-11-07 15:34:43,194 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 57 predicate places. [2024-11-07 15:34:43,195 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 184 transitions, 1566 flow [2024-11-07 15:34:43,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:43,196 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:43,196 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] [2024-11-07 15:34:43,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 15:34:43,197 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:34:43,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:43,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1837082241, now seen corresponding path program 4 times [2024-11-07 15:34:43,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:43,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023512242] [2024-11-07 15:34:43,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:43,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:43,636 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 15:34:43,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:43,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023512242] [2024-11-07 15:34:43,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023512242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:43,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:43,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 15:34:43,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870785559] [2024-11-07 15:34:43,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:43,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 15:34:43,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:43,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 15:34:43,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-07 15:34:44,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-07 15:34:44,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 184 transitions, 1566 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:44,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:44,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-07 15:34:44,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:44,844 INFO L124 PetriNetUnfolderBase]: 308/885 cut-off events. [2024-11-07 15:34:44,844 INFO L125 PetriNetUnfolderBase]: For 5242/5267 co-relation queries the response was YES. [2024-11-07 15:34:44,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4280 conditions, 885 events. 308/885 cut-off events. For 5242/5267 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5108 event pairs, 42 based on Foata normal form. 31/913 useless extension candidates. Maximal degree in co-relation 4195. Up to 429 conditions per place. [2024-11-07 15:34:44,852 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 111 selfloop transitions, 64 changer transitions 29/254 dead transitions. [2024-11-07 15:34:44,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 254 transitions, 2527 flow [2024-11-07 15:34:44,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 15:34:44,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-07 15:34:44,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 858 transitions. [2024-11-07 15:34:44,855 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7061728395061728 [2024-11-07 15:34:44,856 INFO L175 Difference]: Start difference. First operand has 140 places, 184 transitions, 1566 flow. Second operand 15 states and 858 transitions. [2024-11-07 15:34:44,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 254 transitions, 2527 flow [2024-11-07 15:34:44,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 254 transitions, 2423 flow, removed 31 selfloop flow, removed 8 redundant places. [2024-11-07 15:34:44,882 INFO L231 Difference]: Finished difference. Result has 152 places, 197 transitions, 1888 flow [2024-11-07 15:34:44,883 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1492, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1888, PETRI_PLACES=152, PETRI_TRANSITIONS=197} [2024-11-07 15:34:44,884 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 69 predicate places. [2024-11-07 15:34:44,884 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 197 transitions, 1888 flow [2024-11-07 15:34:44,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:44,885 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:44,885 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] [2024-11-07 15:34:44,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 15:34:44,885 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:34:44,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:44,886 INFO L85 PathProgramCache]: Analyzing trace with hash -137656509, now seen corresponding path program 1 times [2024-11-07 15:34:44,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:44,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549784010] [2024-11-07 15:34:44,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:44,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:45,232 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 15:34:45,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:45,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549784010] [2024-11-07 15:34:45,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549784010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:45,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:45,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 15:34:45,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007150466] [2024-11-07 15:34:45,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:45,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 15:34:45,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:45,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 15:34:45,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-07 15:34:45,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-07 15:34:45,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 197 transitions, 1888 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:45,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:45,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-07 15:34:45,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:46,282 INFO L124 PetriNetUnfolderBase]: 282/807 cut-off events. [2024-11-07 15:34:46,282 INFO L125 PetriNetUnfolderBase]: For 5541/5565 co-relation queries the response was YES. [2024-11-07 15:34:46,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4291 conditions, 807 events. 282/807 cut-off events. For 5541/5565 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4539 event pairs, 29 based on Foata normal form. 24/827 useless extension candidates. Maximal degree in co-relation 4201. Up to 179 conditions per place. [2024-11-07 15:34:46,290 INFO L140 encePairwiseOnDemand]: 66/81 looper letters, 132 selfloop transitions, 61 changer transitions 14/262 dead transitions. [2024-11-07 15:34:46,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 262 transitions, 2998 flow [2024-11-07 15:34:46,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 15:34:46,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-07 15:34:46,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 669 transitions. [2024-11-07 15:34:46,293 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6882716049382716 [2024-11-07 15:34:46,293 INFO L175 Difference]: Start difference. First operand has 152 places, 197 transitions, 1888 flow. Second operand 12 states and 669 transitions. [2024-11-07 15:34:46,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 262 transitions, 2998 flow [2024-11-07 15:34:46,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 262 transitions, 2880 flow, removed 17 selfloop flow, removed 8 redundant places. [2024-11-07 15:34:46,322 INFO L231 Difference]: Finished difference. Result has 152 places, 191 transitions, 1884 flow [2024-11-07 15:34:46,323 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1790, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1884, PETRI_PLACES=152, PETRI_TRANSITIONS=191} [2024-11-07 15:34:46,325 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 69 predicate places. [2024-11-07 15:34:46,326 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 191 transitions, 1884 flow [2024-11-07 15:34:46,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:46,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:46,326 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:46,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 15:34:46,327 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:34:46,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:46,327 INFO L85 PathProgramCache]: Analyzing trace with hash -181087335, now seen corresponding path program 5 times [2024-11-07 15:34:46,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:46,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87840622] [2024-11-07 15:34:46,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:46,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:46,702 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 15:34:46,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:46,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87840622] [2024-11-07 15:34:46,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87840622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:46,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:46,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 15:34:46,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542280806] [2024-11-07 15:34:46,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:46,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 15:34:46,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:46,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 15:34:46,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-07 15:34:47,230 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-07 15:34:47,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 191 transitions, 1884 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:47,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:47,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-07 15:34:47,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:47,822 INFO L124 PetriNetUnfolderBase]: 286/802 cut-off events. [2024-11-07 15:34:47,822 INFO L125 PetriNetUnfolderBase]: For 6379/6416 co-relation queries the response was YES. [2024-11-07 15:34:47,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4588 conditions, 802 events. 286/802 cut-off events. For 6379/6416 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4369 event pairs, 35 based on Foata normal form. 30/829 useless extension candidates. Maximal degree in co-relation 4498. Up to 426 conditions per place. [2024-11-07 15:34:47,831 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 93 selfloop transitions, 43 changer transitions 51/233 dead transitions. [2024-11-07 15:34:47,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 233 transitions, 2673 flow [2024-11-07 15:34:47,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 15:34:47,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 15:34:47,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 790 transitions. [2024-11-07 15:34:47,835 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6966490299823633 [2024-11-07 15:34:47,836 INFO L175 Difference]: Start difference. First operand has 152 places, 191 transitions, 1884 flow. Second operand 14 states and 790 transitions. [2024-11-07 15:34:47,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 233 transitions, 2673 flow [2024-11-07 15:34:47,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 233 transitions, 2497 flow, removed 4 selfloop flow, removed 12 redundant places. [2024-11-07 15:34:47,868 INFO L231 Difference]: Finished difference. Result has 156 places, 166 transitions, 1549 flow [2024-11-07 15:34:47,869 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1758, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1549, PETRI_PLACES=156, PETRI_TRANSITIONS=166} [2024-11-07 15:34:47,869 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 73 predicate places. [2024-11-07 15:34:47,869 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 166 transitions, 1549 flow [2024-11-07 15:34:47,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:47,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:47,870 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] [2024-11-07 15:34:47,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 15:34:47,870 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:34:47,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:47,870 INFO L85 PathProgramCache]: Analyzing trace with hash -972754177, now seen corresponding path program 6 times [2024-11-07 15:34:47,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:47,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251507747] [2024-11-07 15:34:47,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:47,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:48,213 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 15:34:48,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:48,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251507747] [2024-11-07 15:34:48,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251507747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:48,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:48,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 15:34:48,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130562389] [2024-11-07 15:34:48,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:48,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 15:34:48,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:48,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 15:34:48,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-07 15:34:48,626 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-07 15:34:48,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 166 transitions, 1549 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:48,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:48,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-07 15:34:48,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:49,104 INFO L124 PetriNetUnfolderBase]: 217/694 cut-off events. [2024-11-07 15:34:49,104 INFO L125 PetriNetUnfolderBase]: For 7022/7049 co-relation queries the response was YES. [2024-11-07 15:34:49,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3771 conditions, 694 events. 217/694 cut-off events. For 7022/7049 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3772 event pairs, 34 based on Foata normal form. 19/710 useless extension candidates. Maximal degree in co-relation 3675. Up to 351 conditions per place. [2024-11-07 15:34:49,112 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 100 selfloop transitions, 44 changer transitions 20/210 dead transitions. [2024-11-07 15:34:49,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 210 transitions, 2366 flow [2024-11-07 15:34:49,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 15:34:49,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 15:34:49,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 785 transitions. [2024-11-07 15:34:49,115 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6922398589065256 [2024-11-07 15:34:49,116 INFO L175 Difference]: Start difference. First operand has 156 places, 166 transitions, 1549 flow. Second operand 14 states and 785 transitions. [2024-11-07 15:34:49,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 210 transitions, 2366 flow [2024-11-07 15:34:49,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 210 transitions, 2053 flow, removed 50 selfloop flow, removed 17 redundant places. [2024-11-07 15:34:49,146 INFO L231 Difference]: Finished difference. Result has 156 places, 173 transitions, 1579 flow [2024-11-07 15:34:49,147 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1326, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1579, PETRI_PLACES=156, PETRI_TRANSITIONS=173} [2024-11-07 15:34:49,148 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 73 predicate places. [2024-11-07 15:34:49,148 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 173 transitions, 1579 flow [2024-11-07 15:34:49,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:49,149 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:49,149 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] [2024-11-07 15:34:49,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 15:34:49,149 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:34:49,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:49,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1849243779, now seen corresponding path program 7 times [2024-11-07 15:34:49,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:49,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453195224] [2024-11-07 15:34:49,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:49,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:49,487 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 15:34:49,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:49,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453195224] [2024-11-07 15:34:49,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453195224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:49,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:49,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 15:34:49,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619626518] [2024-11-07 15:34:49,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:49,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 15:34:49,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:49,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 15:34:49,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-07 15:34:49,899 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-07 15:34:49,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 173 transitions, 1579 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:49,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:49,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-07 15:34:49,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:50,443 INFO L124 PetriNetUnfolderBase]: 249/765 cut-off events. [2024-11-07 15:34:50,443 INFO L125 PetriNetUnfolderBase]: For 6569/6609 co-relation queries the response was YES. [2024-11-07 15:34:50,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3969 conditions, 765 events. 249/765 cut-off events. For 6569/6609 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4247 event pairs, 42 based on Foata normal form. 30/792 useless extension candidates. Maximal degree in co-relation 3875. Up to 275 conditions per place. [2024-11-07 15:34:50,451 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 141 selfloop transitions, 61 changer transitions 16/264 dead transitions. [2024-11-07 15:34:50,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 264 transitions, 2958 flow [2024-11-07 15:34:50,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 15:34:50,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-07 15:34:50,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 841 transitions. [2024-11-07 15:34:50,455 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6921810699588478 [2024-11-07 15:34:50,455 INFO L175 Difference]: Start difference. First operand has 156 places, 173 transitions, 1579 flow. Second operand 15 states and 841 transitions. [2024-11-07 15:34:50,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 264 transitions, 2958 flow [2024-11-07 15:34:50,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 264 transitions, 2897 flow, removed 18 selfloop flow, removed 8 redundant places. [2024-11-07 15:34:50,484 INFO L231 Difference]: Finished difference. Result has 168 places, 193 transitions, 2028 flow [2024-11-07 15:34:50,485 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1549, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2028, PETRI_PLACES=168, PETRI_TRANSITIONS=193} [2024-11-07 15:34:50,486 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 85 predicate places. [2024-11-07 15:34:50,486 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 193 transitions, 2028 flow [2024-11-07 15:34:50,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:50,487 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:50,487 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] [2024-11-07 15:34:50,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 15:34:50,487 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:34:50,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:50,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1388040677, now seen corresponding path program 8 times [2024-11-07 15:34:50,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:50,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144467500] [2024-11-07 15:34:50,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:50,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:50,786 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 15:34:50,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:50,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144467500] [2024-11-07 15:34:50,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144467500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:50,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:50,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 15:34:50,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830324275] [2024-11-07 15:34:50,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:50,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 15:34:50,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:50,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 15:34:50,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-07 15:34:51,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-07 15:34:51,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 193 transitions, 2028 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:51,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:51,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-07 15:34:51,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:51,732 INFO L124 PetriNetUnfolderBase]: 251/754 cut-off events. [2024-11-07 15:34:51,732 INFO L125 PetriNetUnfolderBase]: For 9120/9160 co-relation queries the response was YES. [2024-11-07 15:34:51,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4381 conditions, 754 events. 251/754 cut-off events. For 9120/9160 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4141 event pairs, 22 based on Foata normal form. 36/789 useless extension candidates. Maximal degree in co-relation 4281. Up to 329 conditions per place. [2024-11-07 15:34:51,740 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 142 selfloop transitions, 57 changer transitions 20/265 dead transitions. [2024-11-07 15:34:51,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 265 transitions, 3322 flow [2024-11-07 15:34:51,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 15:34:51,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-07 15:34:51,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 838 transitions. [2024-11-07 15:34:51,744 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6897119341563785 [2024-11-07 15:34:51,744 INFO L175 Difference]: Start difference. First operand has 168 places, 193 transitions, 2028 flow. Second operand 15 states and 838 transitions. [2024-11-07 15:34:51,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 265 transitions, 3322 flow [2024-11-07 15:34:51,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 265 transitions, 3119 flow, removed 65 selfloop flow, removed 10 redundant places. [2024-11-07 15:34:51,776 INFO L231 Difference]: Finished difference. Result has 177 places, 206 transitions, 2257 flow [2024-11-07 15:34:51,777 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1863, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2257, PETRI_PLACES=177, PETRI_TRANSITIONS=206} [2024-11-07 15:34:51,777 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 94 predicate places. [2024-11-07 15:34:51,777 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 206 transitions, 2257 flow [2024-11-07 15:34:51,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:51,778 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:51,778 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] [2024-11-07 15:34:51,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 15:34:51,778 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:34:51,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:51,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1674150571, now seen corresponding path program 9 times [2024-11-07 15:34:51,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:51,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458712808] [2024-11-07 15:34:51,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:51,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:52,071 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 15:34:52,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:52,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458712808] [2024-11-07 15:34:52,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458712808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:52,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:52,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 15:34:52,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284761908] [2024-11-07 15:34:52,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:52,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 15:34:52,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:52,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 15:34:52,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-07 15:34:52,643 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-07 15:34:52,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 206 transitions, 2257 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:52,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:52,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-07 15:34:52,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:53,089 INFO L124 PetriNetUnfolderBase]: 228/716 cut-off events. [2024-11-07 15:34:53,089 INFO L125 PetriNetUnfolderBase]: For 8916/8959 co-relation queries the response was YES. [2024-11-07 15:34:53,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4166 conditions, 716 events. 228/716 cut-off events. For 8916/8959 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3913 event pairs, 19 based on Foata normal form. 41/756 useless extension candidates. Maximal degree in co-relation 4062. Up to 360 conditions per place. [2024-11-07 15:34:53,094 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 123 selfloop transitions, 50 changer transitions 32/251 dead transitions. [2024-11-07 15:34:53,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 251 transitions, 3189 flow [2024-11-07 15:34:53,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 15:34:53,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-07 15:34:53,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 836 transitions. [2024-11-07 15:34:53,096 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6880658436213992 [2024-11-07 15:34:53,096 INFO L175 Difference]: Start difference. First operand has 177 places, 206 transitions, 2257 flow. Second operand 15 states and 836 transitions. [2024-11-07 15:34:53,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 251 transitions, 3189 flow [2024-11-07 15:34:53,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 251 transitions, 3024 flow, removed 55 selfloop flow, removed 11 redundant places. [2024-11-07 15:34:53,132 INFO L231 Difference]: Finished difference. Result has 184 places, 201 transitions, 2189 flow [2024-11-07 15:34:53,133 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2114, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2189, PETRI_PLACES=184, PETRI_TRANSITIONS=201} [2024-11-07 15:34:53,133 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 101 predicate places. [2024-11-07 15:34:53,133 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 201 transitions, 2189 flow [2024-11-07 15:34:53,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:53,134 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:53,134 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] [2024-11-07 15:34:53,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 15:34:53,134 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:34:53,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:53,134 INFO L85 PathProgramCache]: Analyzing trace with hash -246324857, now seen corresponding path program 10 times [2024-11-07 15:34:53,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:53,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348241445] [2024-11-07 15:34:53,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:53,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:53,418 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 15:34:53,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:53,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348241445] [2024-11-07 15:34:53,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348241445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:53,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:53,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 15:34:53,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157380952] [2024-11-07 15:34:53,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:53,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 15:34:53,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:53,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 15:34:53,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-07 15:34:53,855 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-07 15:34:53,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 201 transitions, 2189 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:53,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:53,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-07 15:34:53,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:54,341 INFO L124 PetriNetUnfolderBase]: 250/796 cut-off events. [2024-11-07 15:34:54,341 INFO L125 PetriNetUnfolderBase]: For 12174/12212 co-relation queries the response was YES. [2024-11-07 15:34:54,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4630 conditions, 796 events. 250/796 cut-off events. For 12174/12212 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4568 event pairs, 34 based on Foata normal form. 38/832 useless extension candidates. Maximal degree in co-relation 4523. Up to 352 conditions per place. [2024-11-07 15:34:54,350 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 148 selfloop transitions, 64 changer transitions 13/271 dead transitions. [2024-11-07 15:34:54,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 271 transitions, 3509 flow [2024-11-07 15:34:54,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 15:34:54,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-07 15:34:54,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 840 transitions. [2024-11-07 15:34:54,352 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.691358024691358 [2024-11-07 15:34:54,352 INFO L175 Difference]: Start difference. First operand has 184 places, 201 transitions, 2189 flow. Second operand 15 states and 840 transitions. [2024-11-07 15:34:54,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 271 transitions, 3509 flow [2024-11-07 15:34:54,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 271 transitions, 3395 flow, removed 27 selfloop flow, removed 11 redundant places. [2024-11-07 15:34:54,393 INFO L231 Difference]: Finished difference. Result has 189 places, 219 transitions, 2605 flow [2024-11-07 15:34:54,394 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2115, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2605, PETRI_PLACES=189, PETRI_TRANSITIONS=219} [2024-11-07 15:34:54,394 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 106 predicate places. [2024-11-07 15:34:54,394 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 219 transitions, 2605 flow [2024-11-07 15:34:54,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:54,395 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:54,395 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] [2024-11-07 15:34:54,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 15:34:54,395 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:34:54,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:54,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1976196377, now seen corresponding path program 11 times [2024-11-07 15:34:54,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:54,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535728478] [2024-11-07 15:34:54,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:54,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:54,680 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 15:34:54,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:54,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535728478] [2024-11-07 15:34:54,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535728478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:54,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:54,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 15:34:54,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024836052] [2024-11-07 15:34:54,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:54,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 15:34:54,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:54,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 15:34:54,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-07 15:34:55,085 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-07 15:34:55,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 219 transitions, 2605 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:55,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:55,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-07 15:34:55,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:55,405 INFO L124 PetriNetUnfolderBase]: 244/793 cut-off events. [2024-11-07 15:34:55,405 INFO L125 PetriNetUnfolderBase]: For 13138/13183 co-relation queries the response was YES. [2024-11-07 15:34:55,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4814 conditions, 793 events. 244/793 cut-off events. For 13138/13183 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4618 event pairs, 35 based on Foata normal form. 27/817 useless extension candidates. Maximal degree in co-relation 4704. Up to 444 conditions per place. [2024-11-07 15:34:55,413 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 134 selfloop transitions, 52 changer transitions 15/247 dead transitions. [2024-11-07 15:34:55,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 247 transitions, 3316 flow [2024-11-07 15:34:55,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 15:34:55,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 15:34:55,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 774 transitions. [2024-11-07 15:34:55,415 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6825396825396826 [2024-11-07 15:34:55,415 INFO L175 Difference]: Start difference. First operand has 189 places, 219 transitions, 2605 flow. Second operand 14 states and 774 transitions. [2024-11-07 15:34:55,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 247 transitions, 3316 flow [2024-11-07 15:34:55,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 247 transitions, 3150 flow, removed 64 selfloop flow, removed 9 redundant places. [2024-11-07 15:34:55,457 INFO L231 Difference]: Finished difference. Result has 197 places, 221 transitions, 2631 flow [2024-11-07 15:34:55,458 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2453, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2631, PETRI_PLACES=197, PETRI_TRANSITIONS=221} [2024-11-07 15:34:55,458 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 114 predicate places. [2024-11-07 15:34:55,458 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 221 transitions, 2631 flow [2024-11-07 15:34:55,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:55,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:55,459 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] [2024-11-07 15:34:55,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 15:34:55,459 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:34:55,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:55,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1675784521, now seen corresponding path program 12 times [2024-11-07 15:34:55,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:55,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126645135] [2024-11-07 15:34:55,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:55,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:55,746 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 15:34:55,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:55,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126645135] [2024-11-07 15:34:55,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126645135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:55,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:55,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 15:34:55,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156957381] [2024-11-07 15:34:55,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:55,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 15:34:55,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:55,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 15:34:55,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-07 15:34:56,216 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-07 15:34:56,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 221 transitions, 2631 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:56,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:56,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-07 15:34:56,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:56,594 INFO L124 PetriNetUnfolderBase]: 235/780 cut-off events. [2024-11-07 15:34:56,595 INFO L125 PetriNetUnfolderBase]: For 12688/12722 co-relation queries the response was YES. [2024-11-07 15:34:56,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4637 conditions, 780 events. 235/780 cut-off events. For 12688/12722 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4518 event pairs, 34 based on Foata normal form. 31/808 useless extension candidates. Maximal degree in co-relation 4524. Up to 409 conditions per place. [2024-11-07 15:34:56,600 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 134 selfloop transitions, 55 changer transitions 29/264 dead transitions. [2024-11-07 15:34:56,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 264 transitions, 3582 flow [2024-11-07 15:34:56,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 15:34:56,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-07 15:34:56,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 835 transitions. [2024-11-07 15:34:56,602 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6872427983539094 [2024-11-07 15:34:56,602 INFO L175 Difference]: Start difference. First operand has 197 places, 221 transitions, 2631 flow. Second operand 15 states and 835 transitions. [2024-11-07 15:34:56,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 264 transitions, 3582 flow [2024-11-07 15:34:56,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 264 transitions, 3425 flow, removed 35 selfloop flow, removed 11 redundant places. [2024-11-07 15:34:56,637 INFO L231 Difference]: Finished difference. Result has 204 places, 218 transitions, 2608 flow [2024-11-07 15:34:56,637 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2498, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2608, PETRI_PLACES=204, PETRI_TRANSITIONS=218} [2024-11-07 15:34:56,637 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 121 predicate places. [2024-11-07 15:34:56,638 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 218 transitions, 2608 flow [2024-11-07 15:34:56,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:56,638 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:56,638 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] [2024-11-07 15:34:56,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 15:34:56,638 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:34:56,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:56,638 INFO L85 PathProgramCache]: Analyzing trace with hash 621319205, now seen corresponding path program 13 times [2024-11-07 15:34:56,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:56,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865787720] [2024-11-07 15:34:56,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:56,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:56,918 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 15:34:56,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:56,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865787720] [2024-11-07 15:34:56,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865787720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:56,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:56,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 15:34:56,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737869856] [2024-11-07 15:34:56,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:56,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 15:34:56,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:56,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 15:34:56,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-07 15:34:57,393 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-07 15:34:57,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 218 transitions, 2608 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:57,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:57,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-07 15:34:57,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:57,771 INFO L124 PetriNetUnfolderBase]: 232/792 cut-off events. [2024-11-07 15:34:57,771 INFO L125 PetriNetUnfolderBase]: For 13627/13658 co-relation queries the response was YES. [2024-11-07 15:34:57,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4702 conditions, 792 events. 232/792 cut-off events. For 13627/13658 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4655 event pairs, 36 based on Foata normal form. 28/817 useless extension candidates. Maximal degree in co-relation 4588. Up to 417 conditions per place. [2024-11-07 15:34:57,776 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 138 selfloop transitions, 55 changer transitions 23/262 dead transitions. [2024-11-07 15:34:57,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 262 transitions, 3622 flow [2024-11-07 15:34:57,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 15:34:57,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-07 15:34:57,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 832 transitions. [2024-11-07 15:34:57,778 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6847736625514403 [2024-11-07 15:34:57,778 INFO L175 Difference]: Start difference. First operand has 204 places, 218 transitions, 2608 flow. Second operand 15 states and 832 transitions. [2024-11-07 15:34:57,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 262 transitions, 3622 flow [2024-11-07 15:34:57,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 262 transitions, 3531 flow, removed 25 selfloop flow, removed 10 redundant places. [2024-11-07 15:34:57,815 INFO L231 Difference]: Finished difference. Result has 210 places, 223 transitions, 2770 flow [2024-11-07 15:34:57,815 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2540, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2770, PETRI_PLACES=210, PETRI_TRANSITIONS=223} [2024-11-07 15:34:57,815 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 127 predicate places. [2024-11-07 15:34:57,816 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 223 transitions, 2770 flow [2024-11-07 15:34:57,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:57,816 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:57,816 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] [2024-11-07 15:34:57,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 15:34:57,817 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:34:57,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:57,817 INFO L85 PathProgramCache]: Analyzing trace with hash 2081652893, now seen corresponding path program 14 times [2024-11-07 15:34:57,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:57,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465106639] [2024-11-07 15:34:57,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:57,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:58,085 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 15:34:58,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:58,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465106639] [2024-11-07 15:34:58,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465106639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:58,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:58,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 15:34:58,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405965361] [2024-11-07 15:34:58,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:58,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 15:34:58,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:58,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 15:34:58,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-07 15:34:58,642 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-07 15:34:58,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 223 transitions, 2770 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:58,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:58,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-07 15:34:58,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:59,045 INFO L124 PetriNetUnfolderBase]: 221/753 cut-off events. [2024-11-07 15:34:59,046 INFO L125 PetriNetUnfolderBase]: For 13880/13907 co-relation queries the response was YES. [2024-11-07 15:34:59,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4570 conditions, 753 events. 221/753 cut-off events. For 13880/13907 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4342 event pairs, 34 based on Foata normal form. 27/769 useless extension candidates. Maximal degree in co-relation 4453. Up to 363 conditions per place. [2024-11-07 15:34:59,051 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 138 selfloop transitions, 61 changer transitions 26/271 dead transitions. [2024-11-07 15:34:59,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 271 transitions, 3866 flow [2024-11-07 15:34:59,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 15:34:59,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-07 15:34:59,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 834 transitions. [2024-11-07 15:34:59,052 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6864197530864198 [2024-11-07 15:34:59,052 INFO L175 Difference]: Start difference. First operand has 210 places, 223 transitions, 2770 flow. Second operand 15 states and 834 transitions. [2024-11-07 15:34:59,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 271 transitions, 3866 flow [2024-11-07 15:34:59,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 271 transitions, 3734 flow, removed 46 selfloop flow, removed 12 redundant places. [2024-11-07 15:34:59,089 INFO L231 Difference]: Finished difference. Result has 217 places, 221 transitions, 2831 flow [2024-11-07 15:34:59,089 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2694, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2831, PETRI_PLACES=217, PETRI_TRANSITIONS=221} [2024-11-07 15:34:59,089 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 134 predicate places. [2024-11-07 15:34:59,089 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 221 transitions, 2831 flow [2024-11-07 15:34:59,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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 15:34:59,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:59,090 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] [2024-11-07 15:34:59,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 15:34:59,090 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:34:59,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:59,090 INFO L85 PathProgramCache]: Analyzing trace with hash -24746395, now seen corresponding path program 1 times [2024-11-07 15:34:59,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:59,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890924141] [2024-11-07 15:34:59,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:59,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:59,361 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 15:34:59,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:59,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890924141] [2024-11-07 15:34:59,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890924141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:59,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:59,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 15:34:59,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008531395] [2024-11-07 15:34:59,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:59,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 15:34:59,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:59,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 15:34:59,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-07 15:34:59,778 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-07 15:34:59,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 221 transitions, 2831 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 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 15:34:59,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:59,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-07 15:34:59,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:35:00,145 INFO L124 PetriNetUnfolderBase]: 208/740 cut-off events. [2024-11-07 15:35:00,145 INFO L125 PetriNetUnfolderBase]: For 12410/12438 co-relation queries the response was YES. [2024-11-07 15:35:00,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4386 conditions, 740 events. 208/740 cut-off events. For 12410/12438 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4322 event pairs, 16 based on Foata normal form. 14/750 useless extension candidates. Maximal degree in co-relation 4266. Up to 223 conditions per place. [2024-11-07 15:35:00,149 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 123 selfloop transitions, 64 changer transitions 29/262 dead transitions. [2024-11-07 15:35:00,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 262 transitions, 3753 flow [2024-11-07 15:35:00,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-07 15:35:00,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-07 15:35:00,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 977 transitions. [2024-11-07 15:35:00,151 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6700960219478738 [2024-11-07 15:35:00,151 INFO L175 Difference]: Start difference. First operand has 217 places, 221 transitions, 2831 flow. Second operand 18 states and 977 transitions. [2024-11-07 15:35:00,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 262 transitions, 3753 flow [2024-11-07 15:35:00,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 262 transitions, 3581 flow, removed 73 selfloop flow, removed 10 redundant places. [2024-11-07 15:35:00,187 INFO L231 Difference]: Finished difference. Result has 218 places, 210 transitions, 2629 flow [2024-11-07 15:35:00,187 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2699, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2629, PETRI_PLACES=218, PETRI_TRANSITIONS=210} [2024-11-07 15:35:00,188 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 135 predicate places. [2024-11-07 15:35:00,188 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 210 transitions, 2629 flow [2024-11-07 15:35:00,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 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 15:35:00,188 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:35:00,188 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:35:00,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 15:35:00,188 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:35:00,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:35:00,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1196613613, now seen corresponding path program 2 times [2024-11-07 15:35:00,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:35:00,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771453422] [2024-11-07 15:35:00,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:35:00,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:35:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:35:00,451 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 15:35:00,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:35:00,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771453422] [2024-11-07 15:35:00,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771453422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:35:00,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:35:00,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 15:35:00,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387066115] [2024-11-07 15:35:00,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:35:00,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 15:35:00,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:35:00,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 15:35:00,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-07 15:35:00,892 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-07 15:35:00,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 210 transitions, 2629 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 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 15:35:00,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:35:00,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-07 15:35:00,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:35:01,297 INFO L124 PetriNetUnfolderBase]: 195/720 cut-off events. [2024-11-07 15:35:01,298 INFO L125 PetriNetUnfolderBase]: For 12652/12680 co-relation queries the response was YES. [2024-11-07 15:35:01,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4163 conditions, 720 events. 195/720 cut-off events. For 12652/12680 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4212 event pairs, 16 based on Foata normal form. 14/730 useless extension candidates. Maximal degree in co-relation 4041. Up to 223 conditions per place. [2024-11-07 15:35:01,302 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 113 selfloop transitions, 56 changer transitions 37/252 dead transitions. [2024-11-07 15:35:01,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 252 transitions, 3605 flow [2024-11-07 15:35:01,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 15:35:01,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-07 15:35:01,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1077 transitions. [2024-11-07 15:35:01,304 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6648148148148149 [2024-11-07 15:35:01,305 INFO L175 Difference]: Start difference. First operand has 218 places, 210 transitions, 2629 flow. Second operand 20 states and 1077 transitions. [2024-11-07 15:35:01,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 252 transitions, 3605 flow [2024-11-07 15:35:01,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 252 transitions, 3396 flow, removed 35 selfloop flow, removed 17 redundant places. [2024-11-07 15:35:01,339 INFO L231 Difference]: Finished difference. Result has 222 places, 198 transitions, 2401 flow [2024-11-07 15:35:01,339 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2482, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2401, PETRI_PLACES=222, PETRI_TRANSITIONS=198} [2024-11-07 15:35:01,340 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 139 predicate places. [2024-11-07 15:35:01,340 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 198 transitions, 2401 flow [2024-11-07 15:35:01,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 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 15:35:01,340 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:35:01,340 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] [2024-11-07 15:35:01,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 15:35:01,340 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-07 15:35:01,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:35:01,341 INFO L85 PathProgramCache]: Analyzing trace with hash 681139153, now seen corresponding path program 3 times [2024-11-07 15:35:01,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:35:01,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631095130] [2024-11-07 15:35:01,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:35:01,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:35:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:35:01,559 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 15:35:01,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:35:01,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631095130] [2024-11-07 15:35:01,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631095130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:35:01,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:35:01,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 15:35:01,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57995816] [2024-11-07 15:35:01,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:35:01,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 15:35:01,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:35:01,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 15:35:01,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-07 15:35:01,951 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-07 15:35:01,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 198 transitions, 2401 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 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 15:35:01,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:35:01,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-07 15:35:01,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:35:02,374 INFO L124 PetriNetUnfolderBase]: 155/593 cut-off events. [2024-11-07 15:35:02,374 INFO L125 PetriNetUnfolderBase]: For 10523/10551 co-relation queries the response was YES. [2024-11-07 15:35:02,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3356 conditions, 593 events. 155/593 cut-off events. For 10523/10551 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3252 event pairs, 2 based on Foata normal form. 45/638 useless extension candidates. Maximal degree in co-relation 3291. Up to 159 conditions per place. [2024-11-07 15:35:02,377 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 0 selfloop transitions, 0 changer transitions 260/260 dead transitions. [2024-11-07 15:35:02,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 260 transitions, 3481 flow [2024-11-07 15:35:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-07 15:35:02,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-07 15:35:02,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1282 transitions. [2024-11-07 15:35:02,379 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6594650205761317 [2024-11-07 15:35:02,379 INFO L175 Difference]: Start difference. First operand has 222 places, 198 transitions, 2401 flow. Second operand 24 states and 1282 transitions. [2024-11-07 15:35:02,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 260 transitions, 3481 flow [2024-11-07 15:35:02,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 260 transitions, 3214 flow, removed 48 selfloop flow, removed 22 redundant places. [2024-11-07 15:35:02,418 INFO L231 Difference]: Finished difference. Result has 208 places, 0 transitions, 0 flow [2024-11-07 15:35:02,418 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2230, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=0, PETRI_PLACES=208, PETRI_TRANSITIONS=0} [2024-11-07 15:35:02,419 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 125 predicate places. [2024-11-07 15:35:02,419 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 0 transitions, 0 flow [2024-11-07 15:35:02,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 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 15:35:02,421 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2024-11-07 15:35:02,422 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-07 15:35:02,422 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2024-11-07 15:35:02,422 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2024-11-07 15:35:02,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 15:35:02,422 INFO L407 BasicCegarLoop]: Path program histogram: [14, 3, 1, 1, 1, 1] [2024-11-07 15:35:02,426 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 15:35:02,426 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 15:35:02,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:35:02 BasicIcfg [2024-11-07 15:35:02,430 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 15:35:02,431 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 15:35:02,431 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 15:35:02,431 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 15:35:02,432 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:34:35" (3/4) ... [2024-11-07 15:35:02,433 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 15:35:02,436 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-07 15:35:02,438 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-07 15:35:02,439 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-07 15:35:02,439 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-07 15:35:02,505 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 15:35:02,505 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 15:35:02,505 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 15:35:02,507 INFO L158 Benchmark]: Toolchain (without parser) took 28460.88ms. Allocated memory was 109.1MB in the beginning and 293.6MB in the end (delta: 184.5MB). Free memory was 82.7MB in the beginning and 239.2MB in the end (delta: -156.5MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2024-11-07 15:35:02,507 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 15:35:02,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 564.09ms. Allocated memory is still 109.1MB. Free memory was 82.6MB in the beginning and 55.0MB in the end (delta: 27.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-07 15:35:02,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.74ms. Allocated memory is still 109.1MB. Free memory was 55.0MB in the beginning and 53.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 15:35:02,508 INFO L158 Benchmark]: Boogie Preprocessor took 39.09ms. Allocated memory is still 109.1MB. Free memory was 53.1MB in the beginning and 51.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 15:35:02,509 INFO L158 Benchmark]: RCFGBuilder took 371.19ms. Allocated memory is still 109.1MB. Free memory was 51.8MB in the beginning and 83.0MB in the end (delta: -31.2MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2024-11-07 15:35:02,509 INFO L158 Benchmark]: TraceAbstraction took 27350.44ms. Allocated memory was 109.1MB in the beginning and 293.6MB in the end (delta: 184.5MB). Free memory was 82.5MB in the beginning and 245.5MB in the end (delta: -163.1MB). Peak memory consumption was 181.6MB. Max. memory is 16.1GB. [2024-11-07 15:35:02,510 INFO L158 Benchmark]: Witness Printer took 74.78ms. Allocated memory is still 293.6MB. Free memory was 245.5MB in the beginning and 239.2MB in the end (delta: 6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 15:35:02,511 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 564.09ms. Allocated memory is still 109.1MB. Free memory was 82.6MB in the beginning and 55.0MB in the end (delta: 27.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.74ms. Allocated memory is still 109.1MB. Free memory was 55.0MB in the beginning and 53.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.09ms. Allocated memory is still 109.1MB. Free memory was 53.1MB in the beginning and 51.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 371.19ms. Allocated memory is still 109.1MB. Free memory was 51.8MB in the beginning and 83.0MB in the end (delta: -31.2MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * TraceAbstraction took 27350.44ms. Allocated memory was 109.1MB in the beginning and 293.6MB in the end (delta: 184.5MB). Free memory was 82.5MB in the beginning and 245.5MB in the end (delta: -163.1MB). Peak memory consumption was 181.6MB. Max. memory is 16.1GB. * Witness Printer took 74.78ms. Allocated memory is still 293.6MB. Free memory was 245.5MB in the beginning and 239.2MB in the end (delta: 6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 999]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 994]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 99 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 27.2s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 14, EmptinessCheckTime: 0.0s, AutomataDifference: 19.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7611 SdHoareTripleChecker+Valid, 12.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6557 mSDsluCounter, 13445 SdHoareTripleChecker+Invalid, 10.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12803 mSDsCounter, 618 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24361 IncrementalHoareTripleChecker+Invalid, 24979 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 618 mSolverCounterUnsat, 642 mSDtfsCounter, 24361 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 465 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 438 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1211 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2831occurred in iteration=18, InterpolantAutomatonStates: 298, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 1220 NumberOfCodeBlocks, 1220 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1199 ConstructedInterpolants, 0 QuantifiedInterpolants, 7979 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 15:35:02,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE