./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c --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/weaver/loop-tiling-eq.wvr.c', '-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', '2c579ed20cf5b381709dcc4ef9fbcf839f80c68ac017a29b947b11bd3a57dd56'] 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/weaver/loop-tiling-eq.wvr.c -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 2c579ed20cf5b381709dcc4ef9fbcf839f80c68ac017a29b947b11bd3a57dd56 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 15:43:16,188 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 15:43:16,289 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-07 15:43:16,294 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 15:43:16,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 15:43:16,323 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 15:43:16,324 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 15:43:16,324 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 15:43:16,325 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 15:43:16,325 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 15:43:16,326 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 15:43:16,326 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 15:43:16,326 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 15:43:16,326 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 15:43:16,326 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 15:43:16,326 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 15:43:16,326 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 15:43:16,327 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 15:43:16,327 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 15:43:16,327 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 15:43:16,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 15:43:16,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 15:43:16,327 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-07 15:43:16,327 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 15:43:16,327 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 15:43:16,327 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 15:43:16,327 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 15:43:16,327 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 15:43:16,327 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 15:43:16,327 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 15:43:16,327 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 15:43:16,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:43:16,328 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 15:43:16,328 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 15:43:16,328 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 15:43:16,328 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 15:43:16,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 15:43:16,328 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 15:43:16,328 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 15:43:16,328 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 15:43:16,328 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 15:43:16,328 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 -> 2c579ed20cf5b381709dcc4ef9fbcf839f80c68ac017a29b947b11bd3a57dd56 [2024-11-07 15:43:16,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 15:43:16,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 15:43:16,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 15:43:16,592 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 15:43:16,592 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 15:43:16,593 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c [2024-11-07 15:43:17,824 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 15:43:18,074 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 15:43:18,074 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c [2024-11-07 15:43:18,080 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0a4533bf4/dadbccd2e2c1456da4d97046c65347ce/FLAG76d68619c [2024-11-07 15:43:18,093 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0a4533bf4/dadbccd2e2c1456da4d97046c65347ce [2024-11-07 15:43:18,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 15:43:18,097 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 15:43:18,098 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 15:43:18,098 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 15:43:18,103 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 15:43:18,104 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:43:18" (1/1) ... [2024-11-07 15:43:18,104 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a0b22cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:18, skipping insertion in model container [2024-11-07 15:43:18,105 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:43:18" (1/1) ... [2024-11-07 15:43:18,122 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 15:43:18,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:43:18,287 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 15:43:18,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:43:18,329 INFO L204 MainTranslator]: Completed translation [2024-11-07 15:43:18,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:18 WrapperNode [2024-11-07 15:43:18,330 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 15:43:18,331 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 15:43:18,331 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 15:43:18,331 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 15:43:18,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:18" (1/1) ... [2024-11-07 15:43:18,351 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:18" (1/1) ... [2024-11-07 15:43:18,394 INFO L138 Inliner]: procedures = 24, calls = 32, calls flagged for inlining = 14, calls inlined = 18, statements flattened = 331 [2024-11-07 15:43:18,394 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 15:43:18,395 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 15:43:18,395 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 15:43:18,395 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 15:43:18,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:18" (1/1) ... [2024-11-07 15:43:18,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:18" (1/1) ... [2024-11-07 15:43:18,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:18" (1/1) ... [2024-11-07 15:43:18,412 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:18" (1/1) ... [2024-11-07 15:43:18,440 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:18" (1/1) ... [2024-11-07 15:43:18,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:18" (1/1) ... [2024-11-07 15:43:18,453 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:18" (1/1) ... [2024-11-07 15:43:18,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:18" (1/1) ... [2024-11-07 15:43:18,464 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 15:43:18,465 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 15:43:18,465 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 15:43:18,465 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 15:43:18,466 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:18" (1/1) ... [2024-11-07 15:43:18,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:43:18,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:43:18,502 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 15:43:18,506 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 15:43:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-07 15:43:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 15:43:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 15:43:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 15:43:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 15:43:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 15:43:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-07 15:43:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-07 15:43:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-07 15:43:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 15:43:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 15:43:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 15:43:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-07 15:43:18,532 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 15:43:18,661 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 15:43:18,663 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 15:43:19,340 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 15:43:19,343 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 15:43:19,370 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 15:43:19,370 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-07 15:43:19,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:43:19 BoogieIcfgContainer [2024-11-07 15:43:19,373 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 15:43:19,375 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 15:43:19,375 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 15:43:19,379 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 15:43:19,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:43:18" (1/3) ... [2024-11-07 15:43:19,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d1c94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:43:19, skipping insertion in model container [2024-11-07 15:43:19,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:18" (2/3) ... [2024-11-07 15:43:19,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d1c94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:43:19, skipping insertion in model container [2024-11-07 15:43:19,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:43:19" (3/3) ... [2024-11-07 15:43:19,383 INFO L112 eAbstractionObserver]: Analyzing ICFG loop-tiling-eq.wvr.c [2024-11-07 15:43:19,396 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 15:43:19,396 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2024-11-07 15:43:19,396 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 15:43:19,507 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 15:43:19,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 511 places, 534 transitions, 1082 flow [2024-11-07 15:43:19,746 INFO L124 PetriNetUnfolderBase]: 30/532 cut-off events. [2024-11-07 15:43:19,748 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 15:43:19,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 532 events. 30/532 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 853 event pairs, 0 based on Foata normal form. 0/447 useless extension candidates. Maximal degree in co-relation 350. Up to 2 conditions per place. [2024-11-07 15:43:19,756 INFO L82 GeneralOperation]: Start removeDead. Operand has 511 places, 534 transitions, 1082 flow [2024-11-07 15:43:19,767 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 490 places, 512 transitions, 1036 flow [2024-11-07 15:43:19,778 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:43:19,791 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;@2f20840b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:43:19,791 INFO L334 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2024-11-07 15:43:19,796 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:43:19,796 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-11-07 15:43:19,796 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:43:19,796 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:19,796 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] [2024-11-07 15:43:19,797 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:19,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:19,801 INFO L85 PathProgramCache]: Analyzing trace with hash 770404757, now seen corresponding path program 1 times [2024-11-07 15:43:19,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:19,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155696974] [2024-11-07 15:43:19,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:19,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:19,953 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 15:43:19,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:19,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155696974] [2024-11-07 15:43:19,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155696974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:19,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:19,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:43:19,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856656863] [2024-11-07 15:43:19,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:19,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:43:19,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:19,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:43:19,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:43:20,055 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 495 out of 534 [2024-11-07 15:43:20,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 512 transitions, 1036 flow. Second operand has 3 states, 3 states have (on average 496.3333333333333) internal successors, (1489), 3 states have internal predecessors, (1489), 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 15:43:20,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:20,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 495 of 534 [2024-11-07 15:43:20,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:20,186 INFO L124 PetriNetUnfolderBase]: 13/497 cut-off events. [2024-11-07 15:43:20,186 INFO L125 PetriNetUnfolderBase]: For 12/13 co-relation queries the response was YES. [2024-11-07 15:43:20,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 497 events. 13/497 cut-off events. For 12/13 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 855 event pairs, 2 based on Foata normal form. 21/442 useless extension candidates. Maximal degree in co-relation 344. Up to 20 conditions per place. [2024-11-07 15:43:20,193 INFO L140 encePairwiseOnDemand]: 513/534 looper letters, 15 selfloop transitions, 2 changer transitions 11/493 dead transitions. [2024-11-07 15:43:20,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 493 transitions, 1032 flow [2024-11-07 15:43:20,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:43:20,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:43:20,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1521 transitions. [2024-11-07 15:43:20,218 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.949438202247191 [2024-11-07 15:43:20,220 INFO L175 Difference]: Start difference. First operand has 490 places, 512 transitions, 1036 flow. Second operand 3 states and 1521 transitions. [2024-11-07 15:43:20,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 493 transitions, 1032 flow [2024-11-07 15:43:20,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 493 transitions, 1024 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 15:43:20,263 INFO L231 Difference]: Finished difference. Result has 487 places, 482 transitions, 972 flow [2024-11-07 15:43:20,269 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=990, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=491, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=972, PETRI_PLACES=487, PETRI_TRANSITIONS=482} [2024-11-07 15:43:20,272 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -3 predicate places. [2024-11-07 15:43:20,273 INFO L471 AbstractCegarLoop]: Abstraction has has 487 places, 482 transitions, 972 flow [2024-11-07 15:43:20,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 496.3333333333333) internal successors, (1489), 3 states have internal predecessors, (1489), 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 15:43:20,275 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:20,275 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] [2024-11-07 15:43:20,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 15:43:20,276 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:20,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:20,277 INFO L85 PathProgramCache]: Analyzing trace with hash -2105081766, now seen corresponding path program 1 times [2024-11-07 15:43:20,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:20,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534011430] [2024-11-07 15:43:20,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:20,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:20,344 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 15:43:20,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:20,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534011430] [2024-11-07 15:43:20,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534011430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:20,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:20,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:43:20,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133943599] [2024-11-07 15:43:20,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:20,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:43:20,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:20,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:43:20,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:43:20,395 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 534 [2024-11-07 15:43:20,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 487 places, 482 transitions, 972 flow. Second operand has 3 states, 3 states have (on average 486.0) internal successors, (1458), 3 states have internal predecessors, (1458), 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 15:43:20,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:20,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 534 [2024-11-07 15:43:20,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:20,497 INFO L124 PetriNetUnfolderBase]: 18/533 cut-off events. [2024-11-07 15:43:20,498 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2024-11-07 15:43:20,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 571 conditions, 533 events. 18/533 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1151 event pairs, 4 based on Foata normal form. 0/469 useless extension candidates. Maximal degree in co-relation 539. Up to 30 conditions per place. [2024-11-07 15:43:20,501 INFO L140 encePairwiseOnDemand]: 525/534 looper letters, 20 selfloop transitions, 1 changer transitions 0/474 dead transitions. [2024-11-07 15:43:20,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 474 transitions, 998 flow [2024-11-07 15:43:20,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:43:20,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:43:20,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1484 transitions. [2024-11-07 15:43:20,505 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9263420724094882 [2024-11-07 15:43:20,505 INFO L175 Difference]: Start difference. First operand has 487 places, 482 transitions, 972 flow. Second operand 3 states and 1484 transitions. [2024-11-07 15:43:20,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 474 transitions, 998 flow [2024-11-07 15:43:20,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 474 transitions, 994 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:43:20,515 INFO L231 Difference]: Finished difference. Result has 468 places, 474 transitions, 954 flow [2024-11-07 15:43:20,516 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=952, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=954, PETRI_PLACES=468, PETRI_TRANSITIONS=474} [2024-11-07 15:43:20,516 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -22 predicate places. [2024-11-07 15:43:20,516 INFO L471 AbstractCegarLoop]: Abstraction has has 468 places, 474 transitions, 954 flow [2024-11-07 15:43:20,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.0) internal successors, (1458), 3 states have internal predecessors, (1458), 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 15:43:20,518 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:20,518 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:43:20,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 15:43:20,518 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:20,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:20,518 INFO L85 PathProgramCache]: Analyzing trace with hash -705021752, now seen corresponding path program 1 times [2024-11-07 15:43:20,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:20,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167819103] [2024-11-07 15:43:20,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:20,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:20,590 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 15:43:20,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:20,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167819103] [2024-11-07 15:43:20,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167819103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:20,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:20,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:43:20,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325548240] [2024-11-07 15:43:20,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:20,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:43:20,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:20,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:43:20,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:43:20,655 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 494 out of 534 [2024-11-07 15:43:20,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 474 transitions, 954 flow. Second operand has 3 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 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 15:43:20,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:20,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 494 of 534 [2024-11-07 15:43:20,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:20,741 INFO L124 PetriNetUnfolderBase]: 12/475 cut-off events. [2024-11-07 15:43:20,742 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2024-11-07 15:43:20,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 475 events. 12/475 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 747 event pairs, 1 based on Foata normal form. 0/420 useless extension candidates. Maximal degree in co-relation 469. Up to 19 conditions per place. [2024-11-07 15:43:20,745 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 16 selfloop transitions, 2 changer transitions 0/473 dead transitions. [2024-11-07 15:43:20,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 473 transitions, 988 flow [2024-11-07 15:43:20,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:43:20,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:43:20,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1501 transitions. [2024-11-07 15:43:20,749 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9369538077403246 [2024-11-07 15:43:20,749 INFO L175 Difference]: Start difference. First operand has 468 places, 474 transitions, 954 flow. Second operand 3 states and 1501 transitions. [2024-11-07 15:43:20,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 473 transitions, 988 flow [2024-11-07 15:43:20,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 473 transitions, 987 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:43:20,758 INFO L231 Difference]: Finished difference. Result has 468 places, 473 transitions, 955 flow [2024-11-07 15:43:20,759 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=951, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=955, PETRI_PLACES=468, PETRI_TRANSITIONS=473} [2024-11-07 15:43:20,759 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -22 predicate places. [2024-11-07 15:43:20,760 INFO L471 AbstractCegarLoop]: Abstraction has has 468 places, 473 transitions, 955 flow [2024-11-07 15:43:20,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 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 15:43:20,761 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:20,761 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:43:20,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 15:43:20,761 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:20,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:20,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1793195277, now seen corresponding path program 1 times [2024-11-07 15:43:20,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:20,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927491396] [2024-11-07 15:43:20,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:20,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:20,834 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 15:43:20,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:20,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927491396] [2024-11-07 15:43:20,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927491396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:20,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:20,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:43:20,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510344173] [2024-11-07 15:43:20,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:20,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:43:20,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:20,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:43:20,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:43:20,884 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 482 out of 534 [2024-11-07 15:43:20,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 473 transitions, 955 flow. Second operand has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 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 15:43:20,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:20,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 482 of 534 [2024-11-07 15:43:20,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:20,994 INFO L124 PetriNetUnfolderBase]: 15/519 cut-off events. [2024-11-07 15:43:20,994 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2024-11-07 15:43:20,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 555 conditions, 519 events. 15/519 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1042 event pairs, 2 based on Foata normal form. 0/466 useless extension candidates. Maximal degree in co-relation 524. Up to 27 conditions per place. [2024-11-07 15:43:20,999 INFO L140 encePairwiseOnDemand]: 524/534 looper letters, 22 selfloop transitions, 1 changer transitions 0/464 dead transitions. [2024-11-07 15:43:20,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 464 transitions, 983 flow [2024-11-07 15:43:21,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:43:21,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:43:21,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1478 transitions. [2024-11-07 15:43:21,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9225967540574282 [2024-11-07 15:43:21,004 INFO L175 Difference]: Start difference. First operand has 468 places, 473 transitions, 955 flow. Second operand 3 states and 1478 transitions. [2024-11-07 15:43:21,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 464 transitions, 983 flow [2024-11-07 15:43:21,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 464 transitions, 979 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:43:21,012 INFO L231 Difference]: Finished difference. Result has 459 places, 464 transitions, 935 flow [2024-11-07 15:43:21,013 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=935, PETRI_PLACES=459, PETRI_TRANSITIONS=464} [2024-11-07 15:43:21,014 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -31 predicate places. [2024-11-07 15:43:21,015 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 464 transitions, 935 flow [2024-11-07 15:43:21,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 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 15:43:21,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:21,016 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:43:21,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 15:43:21,017 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:21,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:21,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1687939895, now seen corresponding path program 1 times [2024-11-07 15:43:21,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:21,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923140978] [2024-11-07 15:43:21,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:21,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:21,084 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 15:43:21,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:21,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923140978] [2024-11-07 15:43:21,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923140978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:21,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:21,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:43:21,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298254131] [2024-11-07 15:43:21,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:21,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:43:21,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:21,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:43:21,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:43:21,113 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 534 [2024-11-07 15:43:21,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 464 transitions, 935 flow. Second operand has 3 states, 3 states have (on average 501.3333333333333) internal successors, (1504), 3 states have internal predecessors, (1504), 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 15:43:21,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:21,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 534 [2024-11-07 15:43:21,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:21,179 INFO L124 PetriNetUnfolderBase]: 13/499 cut-off events. [2024-11-07 15:43:21,179 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 15:43:21,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 499 events. 13/499 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 937 event pairs, 1 based on Foata normal form. 0/447 useless extension candidates. Maximal degree in co-relation 490. Up to 14 conditions per place. [2024-11-07 15:43:21,182 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 10 selfloop transitions, 2 changer transitions 0/463 dead transitions. [2024-11-07 15:43:21,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 463 transitions, 957 flow [2024-11-07 15:43:21,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:43:21,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:43:21,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1513 transitions. [2024-11-07 15:43:21,186 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2024-11-07 15:43:21,186 INFO L175 Difference]: Start difference. First operand has 459 places, 464 transitions, 935 flow. Second operand 3 states and 1513 transitions. [2024-11-07 15:43:21,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 463 transitions, 957 flow [2024-11-07 15:43:21,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 463 transitions, 956 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:43:21,198 INFO L231 Difference]: Finished difference. Result has 459 places, 463 transitions, 936 flow [2024-11-07 15:43:21,199 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=932, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=936, PETRI_PLACES=459, PETRI_TRANSITIONS=463} [2024-11-07 15:43:21,199 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -31 predicate places. [2024-11-07 15:43:21,200 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 463 transitions, 936 flow [2024-11-07 15:43:21,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 501.3333333333333) internal successors, (1504), 3 states have internal predecessors, (1504), 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 15:43:21,202 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:21,202 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:43:21,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 15:43:21,202 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:21,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:21,203 INFO L85 PathProgramCache]: Analyzing trace with hash 60480518, now seen corresponding path program 1 times [2024-11-07 15:43:21,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:21,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827280969] [2024-11-07 15:43:21,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:21,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:21,279 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 15:43:21,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:21,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827280969] [2024-11-07 15:43:21,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827280969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:21,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:21,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:43:21,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855820091] [2024-11-07 15:43:21,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:21,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:43:21,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:21,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:43:21,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:43:21,300 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 534 [2024-11-07 15:43:21,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 463 transitions, 936 flow. Second operand has 3 states, 3 states have (on average 501.0) internal successors, (1503), 3 states have internal predecessors, (1503), 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 15:43:21,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:21,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 534 [2024-11-07 15:43:21,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:21,364 INFO L124 PetriNetUnfolderBase]: 14/496 cut-off events. [2024-11-07 15:43:21,364 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 15:43:21,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 496 events. 14/496 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 936 event pairs, 2 based on Foata normal form. 0/447 useless extension candidates. Maximal degree in co-relation 492. Up to 15 conditions per place. [2024-11-07 15:43:21,367 INFO L140 encePairwiseOnDemand]: 530/534 looper letters, 10 selfloop transitions, 1 changer transitions 0/460 dead transitions. [2024-11-07 15:43:21,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 460 transitions, 952 flow [2024-11-07 15:43:21,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:43:21,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:43:21,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1514 transitions. [2024-11-07 15:43:21,371 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9450686641697877 [2024-11-07 15:43:21,371 INFO L175 Difference]: Start difference. First operand has 459 places, 463 transitions, 936 flow. Second operand 3 states and 1514 transitions. [2024-11-07 15:43:21,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 460 transitions, 952 flow [2024-11-07 15:43:21,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 460 transitions, 948 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:43:21,378 INFO L231 Difference]: Finished difference. Result has 456 places, 460 transitions, 928 flow [2024-11-07 15:43:21,379 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=926, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=928, PETRI_PLACES=456, PETRI_TRANSITIONS=460} [2024-11-07 15:43:21,380 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -34 predicate places. [2024-11-07 15:43:21,380 INFO L471 AbstractCegarLoop]: Abstraction has has 456 places, 460 transitions, 928 flow [2024-11-07 15:43:21,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 501.0) internal successors, (1503), 3 states have internal predecessors, (1503), 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 15:43:21,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:21,381 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:43:21,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 15:43:21,382 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:21,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:21,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1273962220, now seen corresponding path program 1 times [2024-11-07 15:43:21,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:21,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954005587] [2024-11-07 15:43:21,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:21,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:21,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:22,159 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 15:43:22,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:22,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954005587] [2024-11-07 15:43:22,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954005587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:22,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:22,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:43:22,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044200534] [2024-11-07 15:43:22,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:22,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:43:22,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:22,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:43:22,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:43:22,583 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 534 [2024-11-07 15:43:22,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 460 transitions, 928 flow. Second operand has 6 states, 6 states have (on average 433.5) internal successors, (2601), 6 states have internal predecessors, (2601), 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 15:43:22,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:22,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 534 [2024-11-07 15:43:22,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:22,850 INFO L124 PetriNetUnfolderBase]: 172/1180 cut-off events. [2024-11-07 15:43:22,850 INFO L125 PetriNetUnfolderBase]: For 27/28 co-relation queries the response was YES. [2024-11-07 15:43:22,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1542 conditions, 1180 events. 172/1180 cut-off events. For 27/28 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5885 event pairs, 116 based on Foata normal form. 0/1039 useless extension candidates. Maximal degree in co-relation 1511. Up to 332 conditions per place. [2024-11-07 15:43:22,856 INFO L140 encePairwiseOnDemand]: 516/534 looper letters, 64 selfloop transitions, 15 changer transitions 0/457 dead transitions. [2024-11-07 15:43:22,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 457 transitions, 1080 flow [2024-11-07 15:43:22,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:43:22,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:43:22,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2674 transitions. [2024-11-07 15:43:22,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.83458177278402 [2024-11-07 15:43:22,864 INFO L175 Difference]: Start difference. First operand has 456 places, 460 transitions, 928 flow. Second operand 6 states and 2674 transitions. [2024-11-07 15:43:22,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 457 transitions, 1080 flow [2024-11-07 15:43:22,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 457 transitions, 1079 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:43:22,872 INFO L231 Difference]: Finished difference. Result has 457 places, 457 transitions, 951 flow [2024-11-07 15:43:22,873 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=921, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=951, PETRI_PLACES=457, PETRI_TRANSITIONS=457} [2024-11-07 15:43:22,873 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -33 predicate places. [2024-11-07 15:43:22,873 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 457 transitions, 951 flow [2024-11-07 15:43:22,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 433.5) internal successors, (2601), 6 states have internal predecessors, (2601), 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 15:43:22,875 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:22,877 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:43:22,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 15:43:22,877 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:22,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:22,878 INFO L85 PathProgramCache]: Analyzing trace with hash 482642813, now seen corresponding path program 1 times [2024-11-07 15:43:22,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:22,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099452851] [2024-11-07 15:43:22,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:22,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:22,936 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 15:43:22,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:22,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099452851] [2024-11-07 15:43:22,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099452851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:22,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:22,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:43:22,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645194523] [2024-11-07 15:43:22,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:22,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:43:22,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:22,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:43:22,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:43:22,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 534 [2024-11-07 15:43:22,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 457 transitions, 951 flow. Second operand has 3 states, 3 states have (on average 502.3333333333333) internal successors, (1507), 3 states have internal predecessors, (1507), 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 15:43:22,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:22,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 534 [2024-11-07 15:43:22,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:23,024 INFO L124 PetriNetUnfolderBase]: 14/492 cut-off events. [2024-11-07 15:43:23,024 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2024-11-07 15:43:23,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 492 events. 14/492 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 910 event pairs, 1 based on Foata normal form. 0/449 useless extension candidates. Maximal degree in co-relation 499. Up to 14 conditions per place. [2024-11-07 15:43:23,026 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 9 selfloop transitions, 2 changer transitions 0/456 dead transitions. [2024-11-07 15:43:23,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 456 transitions, 971 flow [2024-11-07 15:43:23,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:43:23,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:43:23,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1515 transitions. [2024-11-07 15:43:23,030 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9456928838951311 [2024-11-07 15:43:23,030 INFO L175 Difference]: Start difference. First operand has 457 places, 457 transitions, 951 flow. Second operand 3 states and 1515 transitions. [2024-11-07 15:43:23,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 456 transitions, 971 flow [2024-11-07 15:43:23,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 456 transitions, 941 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:43:23,037 INFO L231 Difference]: Finished difference. Result has 453 places, 456 transitions, 923 flow [2024-11-07 15:43:23,038 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=919, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=923, PETRI_PLACES=453, PETRI_TRANSITIONS=456} [2024-11-07 15:43:23,040 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -37 predicate places. [2024-11-07 15:43:23,040 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 456 transitions, 923 flow [2024-11-07 15:43:23,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 502.3333333333333) internal successors, (1507), 3 states have internal predecessors, (1507), 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 15:43:23,041 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:23,042 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:23,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 15:43:23,042 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:23,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:23,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1160531727, now seen corresponding path program 1 times [2024-11-07 15:43:23,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:23,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255180088] [2024-11-07 15:43:23,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:23,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:23,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:23,104 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 15:43:23,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:23,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255180088] [2024-11-07 15:43:23,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255180088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:23,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:23,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:43:23,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172035471] [2024-11-07 15:43:23,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:23,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:43:23,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:23,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:43:23,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:43:23,121 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 534 [2024-11-07 15:43:23,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 456 transitions, 923 flow. Second operand has 3 states, 3 states have (on average 502.3333333333333) internal successors, (1507), 3 states have internal predecessors, (1507), 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 15:43:23,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:23,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 534 [2024-11-07 15:43:23,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:23,178 INFO L124 PetriNetUnfolderBase]: 16/516 cut-off events. [2024-11-07 15:43:23,179 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2024-11-07 15:43:23,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 516 events. 16/516 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1102 event pairs, 3 based on Foata normal form. 0/470 useless extension candidates. Maximal degree in co-relation 512. Up to 16 conditions per place. [2024-11-07 15:43:23,181 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 9 selfloop transitions, 2 changer transitions 0/455 dead transitions. [2024-11-07 15:43:23,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 455 transitions, 943 flow [2024-11-07 15:43:23,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:43:23,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:43:23,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1515 transitions. [2024-11-07 15:43:23,185 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9456928838951311 [2024-11-07 15:43:23,185 INFO L175 Difference]: Start difference. First operand has 453 places, 456 transitions, 923 flow. Second operand 3 states and 1515 transitions. [2024-11-07 15:43:23,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 455 transitions, 943 flow [2024-11-07 15:43:23,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 455 transitions, 939 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:43:23,193 INFO L231 Difference]: Finished difference. Result has 452 places, 455 transitions, 921 flow [2024-11-07 15:43:23,194 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=917, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=921, PETRI_PLACES=452, PETRI_TRANSITIONS=455} [2024-11-07 15:43:23,194 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -38 predicate places. [2024-11-07 15:43:23,195 INFO L471 AbstractCegarLoop]: Abstraction has has 452 places, 455 transitions, 921 flow [2024-11-07 15:43:23,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 502.3333333333333) internal successors, (1507), 3 states have internal predecessors, (1507), 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 15:43:23,196 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:23,196 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:23,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 15:43:23,196 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:23,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:23,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1721359127, now seen corresponding path program 1 times [2024-11-07 15:43:23,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:23,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462753243] [2024-11-07 15:43:23,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:23,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:23,261 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 15:43:23,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:23,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462753243] [2024-11-07 15:43:23,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462753243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:23,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:23,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:43:23,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713862405] [2024-11-07 15:43:23,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:23,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:43:23,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:23,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:43:23,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:43:23,285 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 534 [2024-11-07 15:43:23,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 455 transitions, 921 flow. Second operand has 3 states, 3 states have (on average 501.3333333333333) internal successors, (1504), 3 states have internal predecessors, (1504), 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 15:43:23,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:23,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 534 [2024-11-07 15:43:23,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:23,352 INFO L124 PetriNetUnfolderBase]: 12/456 cut-off events. [2024-11-07 15:43:23,353 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2024-11-07 15:43:23,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 456 events. 12/456 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 725 event pairs, 1 based on Foata normal form. 0/420 useless extension candidates. Maximal degree in co-relation 448. Up to 13 conditions per place. [2024-11-07 15:43:23,354 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 10 selfloop transitions, 2 changer transitions 0/454 dead transitions. [2024-11-07 15:43:23,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 454 transitions, 943 flow [2024-11-07 15:43:23,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:43:23,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:43:23,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1513 transitions. [2024-11-07 15:43:23,360 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2024-11-07 15:43:23,360 INFO L175 Difference]: Start difference. First operand has 452 places, 455 transitions, 921 flow. Second operand 3 states and 1513 transitions. [2024-11-07 15:43:23,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 454 transitions, 943 flow [2024-11-07 15:43:23,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 454 transitions, 939 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:43:23,369 INFO L231 Difference]: Finished difference. Result has 451 places, 454 transitions, 919 flow [2024-11-07 15:43:23,370 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=919, PETRI_PLACES=451, PETRI_TRANSITIONS=454} [2024-11-07 15:43:23,371 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -39 predicate places. [2024-11-07 15:43:23,371 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 454 transitions, 919 flow [2024-11-07 15:43:23,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 501.3333333333333) internal successors, (1504), 3 states have internal predecessors, (1504), 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 15:43:23,372 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:23,372 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:23,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 15:43:23,373 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:23,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:23,373 INFO L85 PathProgramCache]: Analyzing trace with hash 991207939, now seen corresponding path program 1 times [2024-11-07 15:43:23,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:23,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006411264] [2024-11-07 15:43:23,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:23,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:23,595 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 15:43:23,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:23,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006411264] [2024-11-07 15:43:23,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006411264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:23,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:23,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:43:23,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83873788] [2024-11-07 15:43:23,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:23,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 15:43:23,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:23,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 15:43:23,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-07 15:43:23,687 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 497 out of 534 [2024-11-07 15:43:23,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 454 transitions, 919 flow. Second operand has 5 states, 5 states have (on average 498.6) internal successors, (2493), 5 states have internal predecessors, (2493), 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 15:43:23,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:23,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 497 of 534 [2024-11-07 15:43:23,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:23,790 INFO L124 PetriNetUnfolderBase]: 18/788 cut-off events. [2024-11-07 15:43:23,790 INFO L125 PetriNetUnfolderBase]: For 2/4 co-relation queries the response was YES. [2024-11-07 15:43:23,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 788 events. 18/788 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2224 event pairs, 0 based on Foata normal form. 1/723 useless extension candidates. Maximal degree in co-relation 793. Up to 12 conditions per place. [2024-11-07 15:43:23,794 INFO L140 encePairwiseOnDemand]: 526/534 looper letters, 16 selfloop transitions, 7 changer transitions 0/461 dead transitions. [2024-11-07 15:43:23,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 461 transitions, 983 flow [2024-11-07 15:43:23,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 15:43:23,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 15:43:23,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2509 transitions. [2024-11-07 15:43:23,800 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9397003745318352 [2024-11-07 15:43:23,800 INFO L175 Difference]: Start difference. First operand has 451 places, 454 transitions, 919 flow. Second operand 5 states and 2509 transitions. [2024-11-07 15:43:23,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 461 transitions, 983 flow [2024-11-07 15:43:23,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 461 transitions, 979 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:43:23,809 INFO L231 Difference]: Finished difference. Result has 455 places, 456 transitions, 946 flow [2024-11-07 15:43:23,810 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=946, PETRI_PLACES=455, PETRI_TRANSITIONS=456} [2024-11-07 15:43:23,811 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -35 predicate places. [2024-11-07 15:43:23,811 INFO L471 AbstractCegarLoop]: Abstraction has has 455 places, 456 transitions, 946 flow [2024-11-07 15:43:23,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 498.6) internal successors, (2493), 5 states have internal predecessors, (2493), 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 15:43:23,813 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:23,813 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:23,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 15:43:23,813 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:23,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:23,814 INFO L85 PathProgramCache]: Analyzing trace with hash 719457379, now seen corresponding path program 1 times [2024-11-07 15:43:23,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:23,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167624528] [2024-11-07 15:43:23,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:23,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:23,917 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 15:43:23,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:23,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167624528] [2024-11-07 15:43:23,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167624528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:23,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:23,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:43:23,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144559630] [2024-11-07 15:43:23,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:23,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:43:23,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:23,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:43:23,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:43:23,934 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 534 [2024-11-07 15:43:23,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 456 transitions, 946 flow. Second operand has 3 states, 3 states have (on average 501.0) internal successors, (1503), 3 states have internal predecessors, (1503), 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 15:43:23,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:23,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 534 [2024-11-07 15:43:23,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:24,069 INFO L124 PetriNetUnfolderBase]: 39/1132 cut-off events. [2024-11-07 15:43:24,070 INFO L125 PetriNetUnfolderBase]: For 12/15 co-relation queries the response was YES. [2024-11-07 15:43:24,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1203 conditions, 1132 events. 39/1132 cut-off events. For 12/15 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4257 event pairs, 0 based on Foata normal form. 0/1025 useless extension candidates. Maximal degree in co-relation 1169. Up to 31 conditions per place. [2024-11-07 15:43:24,077 INFO L140 encePairwiseOnDemand]: 528/534 looper letters, 15 selfloop transitions, 3 changer transitions 0/460 dead transitions. [2024-11-07 15:43:24,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 460 transitions, 994 flow [2024-11-07 15:43:24,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:43:24,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:43:24,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1521 transitions. [2024-11-07 15:43:24,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.949438202247191 [2024-11-07 15:43:24,081 INFO L175 Difference]: Start difference. First operand has 455 places, 456 transitions, 946 flow. Second operand 3 states and 1521 transitions. [2024-11-07 15:43:24,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 460 transitions, 994 flow [2024-11-07 15:43:24,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 460 transitions, 987 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:43:24,090 INFO L231 Difference]: Finished difference. Result has 453 places, 456 transitions, 954 flow [2024-11-07 15:43:24,090 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=954, PETRI_PLACES=453, PETRI_TRANSITIONS=456} [2024-11-07 15:43:24,091 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -37 predicate places. [2024-11-07 15:43:24,092 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 456 transitions, 954 flow [2024-11-07 15:43:24,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 501.0) internal successors, (1503), 3 states have internal predecessors, (1503), 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 15:43:24,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:24,095 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:24,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 15:43:24,096 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:24,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:24,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1487284237, now seen corresponding path program 1 times [2024-11-07 15:43:24,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:24,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018279057] [2024-11-07 15:43:24,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:24,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:24,154 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 15:43:24,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:24,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018279057] [2024-11-07 15:43:24,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018279057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:24,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:24,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:43:24,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122273366] [2024-11-07 15:43:24,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:24,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:43:24,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:24,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:43:24,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:43:24,167 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 534 [2024-11-07 15:43:24,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 456 transitions, 954 flow. Second operand has 3 states, 3 states have (on average 504.3333333333333) internal successors, (1513), 3 states have internal predecessors, (1513), 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 15:43:24,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:24,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 534 [2024-11-07 15:43:24,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:24,340 INFO L124 PetriNetUnfolderBase]: 55/1376 cut-off events. [2024-11-07 15:43:24,340 INFO L125 PetriNetUnfolderBase]: For 10/21 co-relation queries the response was YES. [2024-11-07 15:43:24,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1482 conditions, 1376 events. 55/1376 cut-off events. For 10/21 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 5954 event pairs, 0 based on Foata normal form. 0/1237 useless extension candidates. Maximal degree in co-relation 1448. Up to 43 conditions per place. [2024-11-07 15:43:24,346 INFO L140 encePairwiseOnDemand]: 530/534 looper letters, 12 selfloop transitions, 2 changer transitions 0/459 dead transitions. [2024-11-07 15:43:24,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 459 transitions, 991 flow [2024-11-07 15:43:24,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:43:24,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:43:24,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1525 transitions. [2024-11-07 15:43:24,350 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9519350811485643 [2024-11-07 15:43:24,350 INFO L175 Difference]: Start difference. First operand has 453 places, 456 transitions, 954 flow. Second operand 3 states and 1525 transitions. [2024-11-07 15:43:24,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 459 transitions, 991 flow [2024-11-07 15:43:24,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 459 transitions, 991 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:43:24,357 INFO L231 Difference]: Finished difference. Result has 454 places, 456 transitions, 964 flow [2024-11-07 15:43:24,358 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=964, PETRI_PLACES=454, PETRI_TRANSITIONS=456} [2024-11-07 15:43:24,358 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -36 predicate places. [2024-11-07 15:43:24,358 INFO L471 AbstractCegarLoop]: Abstraction has has 454 places, 456 transitions, 964 flow [2024-11-07 15:43:24,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 504.3333333333333) internal successors, (1513), 3 states have internal predecessors, (1513), 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 15:43:24,359 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:24,360 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:24,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 15:43:24,360 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:24,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:24,360 INFO L85 PathProgramCache]: Analyzing trace with hash -943918097, now seen corresponding path program 1 times [2024-11-07 15:43:24,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:24,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722343368] [2024-11-07 15:43:24,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:24,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:24,412 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 15:43:24,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:24,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722343368] [2024-11-07 15:43:24,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722343368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:24,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:24,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:43:24,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910197077] [2024-11-07 15:43:24,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:24,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:43:24,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:24,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:43:24,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:43:24,424 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 534 [2024-11-07 15:43:24,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 456 transitions, 964 flow. Second operand has 3 states, 3 states have (on average 504.3333333333333) internal successors, (1513), 3 states have internal predecessors, (1513), 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 15:43:24,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:24,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 534 [2024-11-07 15:43:24,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:24,693 INFO L124 PetriNetUnfolderBase]: 95/2044 cut-off events. [2024-11-07 15:43:24,693 INFO L125 PetriNetUnfolderBase]: For 20/23 co-relation queries the response was YES. [2024-11-07 15:43:24,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2233 conditions, 2044 events. 95/2044 cut-off events. For 20/23 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 11976 event pairs, 8 based on Foata normal form. 0/1828 useless extension candidates. Maximal degree in co-relation 2198. Up to 84 conditions per place. [2024-11-07 15:43:24,702 INFO L140 encePairwiseOnDemand]: 530/534 looper letters, 12 selfloop transitions, 2 changer transitions 0/459 dead transitions. [2024-11-07 15:43:24,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 459 transitions, 1001 flow [2024-11-07 15:43:24,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:43:24,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:43:24,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1525 transitions. [2024-11-07 15:43:24,706 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9519350811485643 [2024-11-07 15:43:24,706 INFO L175 Difference]: Start difference. First operand has 454 places, 456 transitions, 964 flow. Second operand 3 states and 1525 transitions. [2024-11-07 15:43:24,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 459 transitions, 1001 flow [2024-11-07 15:43:24,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 459 transitions, 1001 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:43:24,713 INFO L231 Difference]: Finished difference. Result has 455 places, 456 transitions, 974 flow [2024-11-07 15:43:24,714 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=960, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=974, PETRI_PLACES=455, PETRI_TRANSITIONS=456} [2024-11-07 15:43:24,714 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -35 predicate places. [2024-11-07 15:43:24,715 INFO L471 AbstractCegarLoop]: Abstraction has has 455 places, 456 transitions, 974 flow [2024-11-07 15:43:24,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 504.3333333333333) internal successors, (1513), 3 states have internal predecessors, (1513), 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 15:43:24,716 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:24,716 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:24,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 15:43:24,716 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:24,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:24,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1987427533, now seen corresponding path program 1 times [2024-11-07 15:43:24,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:24,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317599571] [2024-11-07 15:43:24,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:24,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:24,906 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 15:43:24,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:24,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317599571] [2024-11-07 15:43:24,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317599571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:24,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:24,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 15:43:24,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497733290] [2024-11-07 15:43:24,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:24,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 15:43:24,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:24,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 15:43:24,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 15:43:25,233 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 534 [2024-11-07 15:43:25,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 456 transitions, 974 flow. Second operand has 7 states, 7 states have (on average 480.0) internal successors, (3360), 7 states have internal predecessors, (3360), 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 15:43:25,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:25,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 534 [2024-11-07 15:43:25,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:25,819 INFO L124 PetriNetUnfolderBase]: 123/2878 cut-off events. [2024-11-07 15:43:25,819 INFO L125 PetriNetUnfolderBase]: For 19/37 co-relation queries the response was YES. [2024-11-07 15:43:25,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3290 conditions, 2878 events. 123/2878 cut-off events. For 19/37 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 18116 event pairs, 18 based on Foata normal form. 8/2623 useless extension candidates. Maximal degree in co-relation 3253. Up to 100 conditions per place. [2024-11-07 15:43:25,833 INFO L140 encePairwiseOnDemand]: 513/534 looper letters, 44 selfloop transitions, 28 changer transitions 0/491 dead transitions. [2024-11-07 15:43:25,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 491 transitions, 1193 flow [2024-11-07 15:43:25,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 15:43:25,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 15:43:25,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4843 transitions. [2024-11-07 15:43:25,844 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9069288389513108 [2024-11-07 15:43:25,844 INFO L175 Difference]: Start difference. First operand has 455 places, 456 transitions, 974 flow. Second operand 10 states and 4843 transitions. [2024-11-07 15:43:25,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 491 transitions, 1193 flow [2024-11-07 15:43:25,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 491 transitions, 1193 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:43:25,855 INFO L231 Difference]: Finished difference. Result has 468 places, 472 transitions, 1103 flow [2024-11-07 15:43:25,856 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=974, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1103, PETRI_PLACES=468, PETRI_TRANSITIONS=472} [2024-11-07 15:43:25,856 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -22 predicate places. [2024-11-07 15:43:25,856 INFO L471 AbstractCegarLoop]: Abstraction has has 468 places, 472 transitions, 1103 flow [2024-11-07 15:43:25,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 480.0) internal successors, (3360), 7 states have internal predecessors, (3360), 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 15:43:25,858 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:25,858 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:25,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 15:43:25,858 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:25,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:25,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2128981058, now seen corresponding path program 1 times [2024-11-07 15:43:25,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:25,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718086053] [2024-11-07 15:43:25,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:25,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:26,041 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 15:43:26,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:26,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718086053] [2024-11-07 15:43:26,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718086053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:26,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:26,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:43:26,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141503265] [2024-11-07 15:43:26,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:26,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 15:43:26,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:26,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 15:43:26,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-07 15:43:26,129 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 497 out of 534 [2024-11-07 15:43:26,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 472 transitions, 1103 flow. Second operand has 5 states, 5 states have (on average 499.0) internal successors, (2495), 5 states have internal predecessors, (2495), 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 15:43:26,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:26,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 497 of 534 [2024-11-07 15:43:26,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:26,476 INFO L124 PetriNetUnfolderBase]: 122/2431 cut-off events. [2024-11-07 15:43:26,477 INFO L125 PetriNetUnfolderBase]: For 83/92 co-relation queries the response was YES. [2024-11-07 15:43:26,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2844 conditions, 2431 events. 122/2431 cut-off events. For 83/92 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 14348 event pairs, 33 based on Foata normal form. 5/2226 useless extension candidates. Maximal degree in co-relation 2800. Up to 115 conditions per place. [2024-11-07 15:43:26,484 INFO L140 encePairwiseOnDemand]: 526/534 looper letters, 17 selfloop transitions, 7 changer transitions 0/480 dead transitions. [2024-11-07 15:43:26,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 480 transitions, 1172 flow [2024-11-07 15:43:26,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 15:43:26,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 15:43:26,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2510 transitions. [2024-11-07 15:43:26,490 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9400749063670412 [2024-11-07 15:43:26,490 INFO L175 Difference]: Start difference. First operand has 468 places, 472 transitions, 1103 flow. Second operand 5 states and 2510 transitions. [2024-11-07 15:43:26,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 480 transitions, 1172 flow [2024-11-07 15:43:26,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 480 transitions, 1172 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:43:26,499 INFO L231 Difference]: Finished difference. Result has 474 places, 474 transitions, 1134 flow [2024-11-07 15:43:26,500 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1103, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1134, PETRI_PLACES=474, PETRI_TRANSITIONS=474} [2024-11-07 15:43:26,500 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -16 predicate places. [2024-11-07 15:43:26,501 INFO L471 AbstractCegarLoop]: Abstraction has has 474 places, 474 transitions, 1134 flow [2024-11-07 15:43:26,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 499.0) internal successors, (2495), 5 states have internal predecessors, (2495), 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 15:43:26,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:26,502 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:26,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 15:43:26,502 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:26,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:26,503 INFO L85 PathProgramCache]: Analyzing trace with hash 667475618, now seen corresponding path program 1 times [2024-11-07 15:43:26,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:26,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408893454] [2024-11-07 15:43:26,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:26,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:26,644 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 15:43:26,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:26,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408893454] [2024-11-07 15:43:26,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408893454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:26,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:26,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:43:26,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295983838] [2024-11-07 15:43:26,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:26,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 15:43:26,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:26,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 15:43:26,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 15:43:26,765 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 498 out of 534 [2024-11-07 15:43:26,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 474 transitions, 1134 flow. Second operand has 5 states, 5 states have (on average 500.0) internal successors, (2500), 5 states have internal predecessors, (2500), 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 15:43:26,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:26,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 498 of 534 [2024-11-07 15:43:26,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:27,127 INFO L124 PetriNetUnfolderBase]: 104/2564 cut-off events. [2024-11-07 15:43:27,128 INFO L125 PetriNetUnfolderBase]: For 160/169 co-relation queries the response was YES. [2024-11-07 15:43:27,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3026 conditions, 2564 events. 104/2564 cut-off events. For 160/169 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 14613 event pairs, 18 based on Foata normal form. 5/2355 useless extension candidates. Maximal degree in co-relation 2978. Up to 78 conditions per place. [2024-11-07 15:43:27,136 INFO L140 encePairwiseOnDemand]: 525/534 looper letters, 17 selfloop transitions, 12 changer transitions 0/483 dead transitions. [2024-11-07 15:43:27,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 483 transitions, 1218 flow [2024-11-07 15:43:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:43:27,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:43:27,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3014 transitions. [2024-11-07 15:43:27,143 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9406991260923845 [2024-11-07 15:43:27,143 INFO L175 Difference]: Start difference. First operand has 474 places, 474 transitions, 1134 flow. Second operand 6 states and 3014 transitions. [2024-11-07 15:43:27,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 483 transitions, 1218 flow [2024-11-07 15:43:27,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 483 transitions, 1209 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-07 15:43:27,151 INFO L231 Difference]: Finished difference. Result has 481 places, 478 transitions, 1191 flow [2024-11-07 15:43:27,151 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1120, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1191, PETRI_PLACES=481, PETRI_TRANSITIONS=478} [2024-11-07 15:43:27,152 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -9 predicate places. [2024-11-07 15:43:27,152 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 478 transitions, 1191 flow [2024-11-07 15:43:27,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 500.0) internal successors, (2500), 5 states have internal predecessors, (2500), 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 15:43:27,153 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:27,153 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:27,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 15:43:27,153 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:27,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:27,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1285029995, now seen corresponding path program 1 times [2024-11-07 15:43:27,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:27,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658501928] [2024-11-07 15:43:27,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:27,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:27,215 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 15:43:27,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:27,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658501928] [2024-11-07 15:43:27,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658501928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:27,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:27,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:43:27,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050629064] [2024-11-07 15:43:27,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:27,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:43:27,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:27,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:43:27,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:43:27,245 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 534 [2024-11-07 15:43:27,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 478 transitions, 1191 flow. Second operand has 3 states, 3 states have (on average 501.6666666666667) internal successors, (1505), 3 states have internal predecessors, (1505), 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 15:43:27,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:27,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 534 [2024-11-07 15:43:27,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:27,576 INFO L124 PetriNetUnfolderBase]: 64/2292 cut-off events. [2024-11-07 15:43:27,576 INFO L125 PetriNetUnfolderBase]: For 119/131 co-relation queries the response was YES. [2024-11-07 15:43:27,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2745 conditions, 2292 events. 64/2292 cut-off events. For 119/131 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 11847 event pairs, 0 based on Foata normal form. 0/2113 useless extension candidates. Maximal degree in co-relation 2693. Up to 99 conditions per place. [2024-11-07 15:43:27,585 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 11 selfloop transitions, 2 changer transitions 0/477 dead transitions. [2024-11-07 15:43:27,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 477 transitions, 1215 flow [2024-11-07 15:43:27,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:43:27,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:43:27,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1511 transitions. [2024-11-07 15:43:27,589 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9431960049937578 [2024-11-07 15:43:27,589 INFO L175 Difference]: Start difference. First operand has 481 places, 478 transitions, 1191 flow. Second operand 3 states and 1511 transitions. [2024-11-07 15:43:27,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 477 transitions, 1215 flow [2024-11-07 15:43:27,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 477 transitions, 1206 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-07 15:43:27,599 INFO L231 Difference]: Finished difference. Result has 481 places, 477 transitions, 1184 flow [2024-11-07 15:43:27,600 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1180, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1184, PETRI_PLACES=481, PETRI_TRANSITIONS=477} [2024-11-07 15:43:27,600 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -9 predicate places. [2024-11-07 15:43:27,600 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 477 transitions, 1184 flow [2024-11-07 15:43:27,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 501.6666666666667) internal successors, (1505), 3 states have internal predecessors, (1505), 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 15:43:27,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:27,602 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:27,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 15:43:27,602 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:27,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:27,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1954206685, now seen corresponding path program 1 times [2024-11-07 15:43:27,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:27,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068528257] [2024-11-07 15:43:27,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:27,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:28,151 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 15:43:28,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:28,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068528257] [2024-11-07 15:43:28,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068528257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:28,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:28,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:43:28,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881570054] [2024-11-07 15:43:28,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:28,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:43:28,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:28,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:43:28,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:43:28,485 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 534 [2024-11-07 15:43:28,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 477 transitions, 1184 flow. Second operand has 6 states, 6 states have (on average 452.6666666666667) internal successors, (2716), 6 states have internal predecessors, (2716), 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 15:43:28,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:28,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 534 [2024-11-07 15:43:28,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:28,957 INFO L124 PetriNetUnfolderBase]: 258/3166 cut-off events. [2024-11-07 15:43:28,958 INFO L125 PetriNetUnfolderBase]: For 187/193 co-relation queries the response was YES. [2024-11-07 15:43:28,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4274 conditions, 3166 events. 258/3166 cut-off events. For 187/193 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 20321 event pairs, 164 based on Foata normal form. 0/2916 useless extension candidates. Maximal degree in co-relation 4221. Up to 654 conditions per place. [2024-11-07 15:43:28,973 INFO L140 encePairwiseOnDemand]: 528/534 looper letters, 60 selfloop transitions, 5 changer transitions 0/476 dead transitions. [2024-11-07 15:43:28,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 476 transitions, 1312 flow [2024-11-07 15:43:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:43:28,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:43:28,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2768 transitions. [2024-11-07 15:43:28,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8639200998751561 [2024-11-07 15:43:28,981 INFO L175 Difference]: Start difference. First operand has 481 places, 477 transitions, 1184 flow. Second operand 6 states and 2768 transitions. [2024-11-07 15:43:28,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 476 transitions, 1312 flow [2024-11-07 15:43:28,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 476 transitions, 1308 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:43:28,990 INFO L231 Difference]: Finished difference. Result has 483 places, 476 transitions, 1188 flow [2024-11-07 15:43:28,992 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1178, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1188, PETRI_PLACES=483, PETRI_TRANSITIONS=476} [2024-11-07 15:43:28,992 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -7 predicate places. [2024-11-07 15:43:28,992 INFO L471 AbstractCegarLoop]: Abstraction has has 483 places, 476 transitions, 1188 flow [2024-11-07 15:43:28,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 452.6666666666667) internal successors, (2716), 6 states have internal predecessors, (2716), 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 15:43:28,993 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:28,993 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:28,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 15:43:28,994 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:28,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:28,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1165846184, now seen corresponding path program 1 times [2024-11-07 15:43:28,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:28,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860509072] [2024-11-07 15:43:28,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:28,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:29,046 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 15:43:29,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:29,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860509072] [2024-11-07 15:43:29,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860509072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:29,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:29,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:43:29,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228408368] [2024-11-07 15:43:29,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:29,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:43:29,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:29,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:43:29,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:43:29,074 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 534 [2024-11-07 15:43:29,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 476 transitions, 1188 flow. Second operand has 3 states, 3 states have (on average 501.6666666666667) internal successors, (1505), 3 states have internal predecessors, (1505), 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 15:43:29,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:29,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 534 [2024-11-07 15:43:29,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:29,364 INFO L124 PetriNetUnfolderBase]: 64/2277 cut-off events. [2024-11-07 15:43:29,364 INFO L125 PetriNetUnfolderBase]: For 96/108 co-relation queries the response was YES. [2024-11-07 15:43:29,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2737 conditions, 2277 events. 64/2277 cut-off events. For 96/108 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 11721 event pairs, 0 based on Foata normal form. 0/2113 useless extension candidates. Maximal degree in co-relation 2685. Up to 99 conditions per place. [2024-11-07 15:43:29,373 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 11 selfloop transitions, 2 changer transitions 0/475 dead transitions. [2024-11-07 15:43:29,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 475 transitions, 1212 flow [2024-11-07 15:43:29,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:43:29,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:43:29,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1511 transitions. [2024-11-07 15:43:29,377 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9431960049937578 [2024-11-07 15:43:29,377 INFO L175 Difference]: Start difference. First operand has 483 places, 476 transitions, 1188 flow. Second operand 3 states and 1511 transitions. [2024-11-07 15:43:29,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 475 transitions, 1212 flow [2024-11-07 15:43:29,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 475 transitions, 1202 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:43:29,385 INFO L231 Difference]: Finished difference. Result has 479 places, 475 transitions, 1180 flow [2024-11-07 15:43:29,386 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1176, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1180, PETRI_PLACES=479, PETRI_TRANSITIONS=475} [2024-11-07 15:43:29,386 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -11 predicate places. [2024-11-07 15:43:29,386 INFO L471 AbstractCegarLoop]: Abstraction has has 479 places, 475 transitions, 1180 flow [2024-11-07 15:43:29,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 501.6666666666667) internal successors, (1505), 3 states have internal predecessors, (1505), 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 15:43:29,386 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:29,386 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:29,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 15:43:29,387 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:29,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:29,387 INFO L85 PathProgramCache]: Analyzing trace with hash 468468258, now seen corresponding path program 1 times [2024-11-07 15:43:29,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:29,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678845446] [2024-11-07 15:43:29,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:29,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:29,440 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 15:43:29,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:29,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678845446] [2024-11-07 15:43:29,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678845446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:29,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:29,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:43:29,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664434467] [2024-11-07 15:43:29,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:29,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:43:29,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:29,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:43:29,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:43:29,460 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 497 out of 534 [2024-11-07 15:43:29,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 475 transitions, 1180 flow. Second operand has 3 states, 3 states have (on average 499.3333333333333) internal successors, (1498), 3 states have internal predecessors, (1498), 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 15:43:29,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:29,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 497 of 534 [2024-11-07 15:43:29,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:29,747 INFO L124 PetriNetUnfolderBase]: 64/2235 cut-off events. [2024-11-07 15:43:29,747 INFO L125 PetriNetUnfolderBase]: For 96/108 co-relation queries the response was YES. [2024-11-07 15:43:29,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2705 conditions, 2235 events. 64/2235 cut-off events. For 96/108 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 11375 event pairs, 0 based on Foata normal form. 0/2113 useless extension candidates. Maximal degree in co-relation 2654. Up to 84 conditions per place. [2024-11-07 15:43:29,758 INFO L140 encePairwiseOnDemand]: 529/534 looper letters, 12 selfloop transitions, 1 changer transitions 0/471 dead transitions. [2024-11-07 15:43:29,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 471 transitions, 1198 flow [2024-11-07 15:43:29,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:43:29,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:43:29,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1508 transitions. [2024-11-07 15:43:29,762 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9413233458177278 [2024-11-07 15:43:29,762 INFO L175 Difference]: Start difference. First operand has 479 places, 475 transitions, 1180 flow. Second operand 3 states and 1508 transitions. [2024-11-07 15:43:29,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 471 transitions, 1198 flow [2024-11-07 15:43:29,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 471 transitions, 1194 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:43:29,794 INFO L231 Difference]: Finished difference. Result has 475 places, 471 transitions, 1170 flow [2024-11-07 15:43:29,794 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1168, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1170, PETRI_PLACES=475, PETRI_TRANSITIONS=471} [2024-11-07 15:43:29,795 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -15 predicate places. [2024-11-07 15:43:29,795 INFO L471 AbstractCegarLoop]: Abstraction has has 475 places, 471 transitions, 1170 flow [2024-11-07 15:43:29,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 499.3333333333333) internal successors, (1498), 3 states have internal predecessors, (1498), 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 15:43:29,795 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:29,796 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:29,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 15:43:29,796 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:29,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:29,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1401116803, now seen corresponding path program 1 times [2024-11-07 15:43:29,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:29,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110476109] [2024-11-07 15:43:29,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:29,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:30,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 15:43:30,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:30,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110476109] [2024-11-07 15:43:30,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110476109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:30,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:30,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:43:30,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105557375] [2024-11-07 15:43:30,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:30,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:43:30,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:30,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:43:30,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:43:30,865 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 475 out of 534 [2024-11-07 15:43:30,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 471 transitions, 1170 flow. Second operand has 6 states, 6 states have (on average 477.8333333333333) internal successors, (2867), 6 states have internal predecessors, (2867), 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 15:43:30,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:30,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 475 of 534 [2024-11-07 15:43:30,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:31,395 INFO L124 PetriNetUnfolderBase]: 242/3490 cut-off events. [2024-11-07 15:43:31,395 INFO L125 PetriNetUnfolderBase]: For 192/193 co-relation queries the response was YES. [2024-11-07 15:43:31,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4470 conditions, 3490 events. 242/3490 cut-off events. For 192/193 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 23125 event pairs, 82 based on Foata normal form. 0/3257 useless extension candidates. Maximal degree in co-relation 4418. Up to 402 conditions per place. [2024-11-07 15:43:31,415 INFO L140 encePairwiseOnDemand]: 523/534 looper letters, 44 selfloop transitions, 22 changer transitions 0/496 dead transitions. [2024-11-07 15:43:31,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 496 transitions, 1356 flow [2024-11-07 15:43:31,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:43:31,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:43:31,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2915 transitions. [2024-11-07 15:43:31,421 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9098002496878901 [2024-11-07 15:43:31,421 INFO L175 Difference]: Start difference. First operand has 475 places, 471 transitions, 1170 flow. Second operand 6 states and 2915 transitions. [2024-11-07 15:43:31,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 496 transitions, 1356 flow [2024-11-07 15:43:31,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 496 transitions, 1355 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:43:31,431 INFO L231 Difference]: Finished difference. Result has 484 places, 492 transitions, 1319 flow [2024-11-07 15:43:31,431 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1169, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1319, PETRI_PLACES=484, PETRI_TRANSITIONS=492} [2024-11-07 15:43:31,432 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -6 predicate places. [2024-11-07 15:43:31,432 INFO L471 AbstractCegarLoop]: Abstraction has has 484 places, 492 transitions, 1319 flow [2024-11-07 15:43:31,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 477.8333333333333) internal successors, (2867), 6 states have internal predecessors, (2867), 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 15:43:31,433 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:31,433 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:31,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 15:43:31,434 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:31,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:31,434 INFO L85 PathProgramCache]: Analyzing trace with hash -123318678, now seen corresponding path program 1 times [2024-11-07 15:43:31,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:31,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013281437] [2024-11-07 15:43:31,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:31,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:31,489 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 15:43:31,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:31,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013281437] [2024-11-07 15:43:31,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013281437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:31,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:31,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:43:31,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307129044] [2024-11-07 15:43:31,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:31,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:43:31,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:31,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:43:31,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:43:31,508 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 497 out of 534 [2024-11-07 15:43:31,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 492 transitions, 1319 flow. Second operand has 3 states, 3 states have (on average 499.3333333333333) internal successors, (1498), 3 states have internal predecessors, (1498), 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 15:43:31,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:31,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 497 of 534 [2024-11-07 15:43:31,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:31,872 INFO L124 PetriNetUnfolderBase]: 128/2803 cut-off events. [2024-11-07 15:43:31,872 INFO L125 PetriNetUnfolderBase]: For 128/143 co-relation queries the response was YES. [2024-11-07 15:43:31,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3512 conditions, 2803 events. 128/2803 cut-off events. For 128/143 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 16297 event pairs, 4 based on Foata normal form. 0/2688 useless extension candidates. Maximal degree in co-relation 3457. Up to 105 conditions per place. [2024-11-07 15:43:31,888 INFO L140 encePairwiseOnDemand]: 527/534 looper letters, 12 selfloop transitions, 3 changer transitions 0/490 dead transitions. [2024-11-07 15:43:31,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 490 transitions, 1345 flow [2024-11-07 15:43:31,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:43:31,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:43:31,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1510 transitions. [2024-11-07 15:43:31,891 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9425717852684145 [2024-11-07 15:43:31,891 INFO L175 Difference]: Start difference. First operand has 484 places, 492 transitions, 1319 flow. Second operand 3 states and 1510 transitions. [2024-11-07 15:43:31,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 490 transitions, 1345 flow [2024-11-07 15:43:31,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 490 transitions, 1345 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:43:31,901 INFO L231 Difference]: Finished difference. Result has 483 places, 490 transitions, 1328 flow [2024-11-07 15:43:31,902 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1311, PETRI_DIFFERENCE_MINUEND_PLACES=480, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=488, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1328, PETRI_PLACES=483, PETRI_TRANSITIONS=490} [2024-11-07 15:43:31,902 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -7 predicate places. [2024-11-07 15:43:31,902 INFO L471 AbstractCegarLoop]: Abstraction has has 483 places, 490 transitions, 1328 flow [2024-11-07 15:43:31,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 499.3333333333333) internal successors, (1498), 3 states have internal predecessors, (1498), 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 15:43:31,903 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:31,903 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:31,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 15:43:31,903 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:31,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:31,904 INFO L85 PathProgramCache]: Analyzing trace with hash -208622012, now seen corresponding path program 1 times [2024-11-07 15:43:31,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:31,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862489917] [2024-11-07 15:43:31,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:31,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:32,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 15:43:32,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:32,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862489917] [2024-11-07 15:43:32,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862489917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:32,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:32,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:43:32,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183423041] [2024-11-07 15:43:32,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:32,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:43:32,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:32,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:43:32,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:43:32,671 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 534 [2024-11-07 15:43:32,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 490 transitions, 1328 flow. Second operand has 6 states, 6 states have (on average 456.6666666666667) internal successors, (2740), 6 states have internal predecessors, (2740), 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 15:43:32,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:32,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 534 [2024-11-07 15:43:32,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:33,515 INFO L124 PetriNetUnfolderBase]: 575/4337 cut-off events. [2024-11-07 15:43:33,515 INFO L125 PetriNetUnfolderBase]: For 590/615 co-relation queries the response was YES. [2024-11-07 15:43:33,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6741 conditions, 4337 events. 575/4337 cut-off events. For 590/615 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 30557 event pairs, 232 based on Foata normal form. 4/4107 useless extension candidates. Maximal degree in co-relation 6684. Up to 1126 conditions per place. [2024-11-07 15:43:33,541 INFO L140 encePairwiseOnDemand]: 515/534 looper letters, 85 selfloop transitions, 55 changer transitions 0/547 dead transitions. [2024-11-07 15:43:33,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 547 transitions, 1758 flow [2024-11-07 15:43:33,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:43:33,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:43:33,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2837 transitions. [2024-11-07 15:43:33,547 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8854556803995006 [2024-11-07 15:43:33,547 INFO L175 Difference]: Start difference. First operand has 483 places, 490 transitions, 1328 flow. Second operand 6 states and 2837 transitions. [2024-11-07 15:43:33,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 547 transitions, 1758 flow [2024-11-07 15:43:33,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 547 transitions, 1758 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:43:33,561 INFO L231 Difference]: Finished difference. Result has 493 places, 543 transitions, 1722 flow [2024-11-07 15:43:33,562 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1328, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1722, PETRI_PLACES=493, PETRI_TRANSITIONS=543} [2024-11-07 15:43:33,563 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, 3 predicate places. [2024-11-07 15:43:33,563 INFO L471 AbstractCegarLoop]: Abstraction has has 493 places, 543 transitions, 1722 flow [2024-11-07 15:43:33,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 456.6666666666667) internal successors, (2740), 6 states have internal predecessors, (2740), 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 15:43:33,564 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:33,564 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:33,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-07 15:43:33,564 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:33,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:33,565 INFO L85 PathProgramCache]: Analyzing trace with hash 120435393, now seen corresponding path program 1 times [2024-11-07 15:43:33,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:33,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865341573] [2024-11-07 15:43:33,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:33,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:43:33,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:43:33,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:43:33,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865341573] [2024-11-07 15:43:33,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865341573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:43:33,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:43:33,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 15:43:33,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312412245] [2024-11-07 15:43:33,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:43:33,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 15:43:33,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:43:33,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 15:43:33,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 15:43:34,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 534 [2024-11-07 15:43:34,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 543 transitions, 1722 flow. Second operand has 7 states, 7 states have (on average 481.2857142857143) internal successors, (3369), 7 states have internal predecessors, (3369), 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 15:43:34,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:43:34,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 534 [2024-11-07 15:43:34,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:43:34,860 INFO L124 PetriNetUnfolderBase]: 335/4076 cut-off events. [2024-11-07 15:43:34,860 INFO L125 PetriNetUnfolderBase]: For 477/508 co-relation queries the response was YES. [2024-11-07 15:43:34,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5843 conditions, 4076 events. 335/4076 cut-off events. For 477/508 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 28212 event pairs, 33 based on Foata normal form. 13/3951 useless extension candidates. Maximal degree in co-relation 5780. Up to 265 conditions per place. [2024-11-07 15:43:34,884 INFO L140 encePairwiseOnDemand]: 521/534 looper letters, 54 selfloop transitions, 18 changer transitions 0/564 dead transitions. [2024-11-07 15:43:34,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 564 transitions, 1913 flow [2024-11-07 15:43:34,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 15:43:34,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 15:43:34,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4829 transitions. [2024-11-07 15:43:34,889 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9043071161048689 [2024-11-07 15:43:34,890 INFO L175 Difference]: Start difference. First operand has 493 places, 543 transitions, 1722 flow. Second operand 10 states and 4829 transitions. [2024-11-07 15:43:34,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 564 transitions, 1913 flow [2024-11-07 15:43:34,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 564 transitions, 1881 flow, removed 16 selfloop flow, removed 0 redundant places. [2024-11-07 15:43:34,905 INFO L231 Difference]: Finished difference. Result has 506 places, 554 transitions, 1777 flow [2024-11-07 15:43:34,906 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1690, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=531, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1777, PETRI_PLACES=506, PETRI_TRANSITIONS=554} [2024-11-07 15:43:34,906 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, 16 predicate places. [2024-11-07 15:43:34,906 INFO L471 AbstractCegarLoop]: Abstraction has has 506 places, 554 transitions, 1777 flow [2024-11-07 15:43:34,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 481.2857142857143) internal successors, (3369), 7 states have internal predecessors, (3369), 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 15:43:34,907 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:43:34,908 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:34,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-07 15:43:34,908 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-07 15:43:34,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:43:34,908 INFO L85 PathProgramCache]: Analyzing trace with hash -675719615, now seen corresponding path program 1 times [2024-11-07 15:43:34,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:43:34,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063871186] [2024-11-07 15:43:34,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:43:34,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:43:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat