./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! data-race) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '2c4a731d968c8b3136fe56f501bb6493c1ca96e59709a347334934436fe70eb7'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2c4a731d968c8b3136fe56f501bb6493c1ca96e59709a347334934436fe70eb7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 15:48:13,395 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 15:48:13,494 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-07 15:48:13,501 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 15:48:13,502 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 15:48:13,528 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 15:48:13,529 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 15:48:13,529 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 15:48:13,530 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 15:48:13,530 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 15:48:13,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 15:48:13,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 15:48:13,531 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 15:48:13,532 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 15:48:13,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 15:48:13,532 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 15:48:13,532 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 15:48:13,532 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 15:48:13,532 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 15:48:13,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 15:48:13,532 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 15:48:13,532 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 15:48:13,532 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-07 15:48:13,532 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 15:48:13,532 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 15:48:13,532 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 15:48:13,532 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 15:48:13,532 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 15:48:13,533 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 15:48:13,533 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 15:48:13,533 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 15:48:13,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:48:13,533 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 15:48:13,533 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 15:48:13,533 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 15:48:13,534 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 15:48:13,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 15:48:13,534 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 15:48:13,534 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 15:48:13,534 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 15:48:13,534 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 15:48:13,535 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 -> 2c4a731d968c8b3136fe56f501bb6493c1ca96e59709a347334934436fe70eb7 [2024-11-07 15:48:13,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 15:48:13,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 15:48:13,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 15:48:13,803 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 15:48:13,803 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 15:48:13,804 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc.i [2024-11-07 15:48:15,051 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 15:48:15,366 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 15:48:15,369 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc.i [2024-11-07 15:48:15,393 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/72c2e7e0f/806e454fd5914bfeb4fbb74dcb4a0bd2/FLAG024498c80 [2024-11-07 15:48:15,411 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/72c2e7e0f/806e454fd5914bfeb4fbb74dcb4a0bd2 [2024-11-07 15:48:15,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 15:48:15,418 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 15:48:15,419 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 15:48:15,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 15:48:15,424 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 15:48:15,425 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:48:15" (1/1) ... [2024-11-07 15:48:15,425 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36d482a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:15, skipping insertion in model container [2024-11-07 15:48:15,426 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:48:15" (1/1) ... [2024-11-07 15:48:15,473 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 15:48:15,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:48:15,874 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 15:48:15,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:48:15,981 INFO L204 MainTranslator]: Completed translation [2024-11-07 15:48:15,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:15 WrapperNode [2024-11-07 15:48:15,982 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 15:48:15,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 15:48:15,983 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 15:48:15,983 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 15:48:15,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:15" (1/1) ... [2024-11-07 15:48:16,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:15" (1/1) ... [2024-11-07 15:48:16,031 INFO L138 Inliner]: procedures = 277, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2024-11-07 15:48:16,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 15:48:16,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 15:48:16,035 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 15:48:16,035 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 15:48:16,041 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:15" (1/1) ... [2024-11-07 15:48:16,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:15" (1/1) ... [2024-11-07 15:48:16,048 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:15" (1/1) ... [2024-11-07 15:48:16,050 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:15" (1/1) ... [2024-11-07 15:48:16,061 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:15" (1/1) ... [2024-11-07 15:48:16,068 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:15" (1/1) ... [2024-11-07 15:48:16,069 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:15" (1/1) ... [2024-11-07 15:48:16,070 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:15" (1/1) ... [2024-11-07 15:48:16,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 15:48:16,078 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 15:48:16,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 15:48:16,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 15:48:16,082 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:15" (1/1) ... [2024-11-07 15:48:16,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:48:16,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:48:16,117 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 15:48:16,121 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 15:48:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 15:48:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 15:48:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-07 15:48:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-07 15:48:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 15:48:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 15:48:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 15:48:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-07 15:48:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-07 15:48:16,144 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-07 15:48:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 15:48:16,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 15:48:16,145 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 15:48:16,274 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 15:48:16,276 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 15:48:16,521 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 15:48:16,521 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 15:48:16,537 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 15:48:16,538 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-07 15:48:16,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:48:16 BoogieIcfgContainer [2024-11-07 15:48:16,538 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 15:48:16,540 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 15:48:16,541 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 15:48:16,545 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 15:48:16,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:48:15" (1/3) ... [2024-11-07 15:48:16,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e013364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:48:16, skipping insertion in model container [2024-11-07 15:48:16,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:15" (2/3) ... [2024-11-07 15:48:16,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e013364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:48:16, skipping insertion in model container [2024-11-07 15:48:16,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:48:16" (3/3) ... [2024-11-07 15:48:16,548 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-index-inc.i [2024-11-07 15:48:16,558 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 15:48:16,558 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-11-07 15:48:16,559 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 15:48:16,633 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-07 15:48:16,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 123 transitions, 253 flow [2024-11-07 15:48:16,742 INFO L124 PetriNetUnfolderBase]: 6/158 cut-off events. [2024-11-07 15:48:16,744 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 15:48:16,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 158 events. 6/158 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 244 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 79. Up to 4 conditions per place. [2024-11-07 15:48:16,751 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 123 transitions, 253 flow [2024-11-07 15:48:16,756 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 123 transitions, 253 flow [2024-11-07 15:48:16,763 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:48:16,776 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;@125bef3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:48:16,776 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-07 15:48:16,785 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:48:16,785 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-11-07 15:48:16,785 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:48:16,786 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:16,787 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:48:16,788 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-07 15:48:16,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:16,793 INFO L85 PathProgramCache]: Analyzing trace with hash -365369053, now seen corresponding path program 1 times [2024-11-07 15:48:16,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:16,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405035724] [2024-11-07 15:48:16,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:16,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:17,042 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 15:48:17,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:17,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405035724] [2024-11-07 15:48:17,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405035724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:17,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:17,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:48:17,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910197077] [2024-11-07 15:48:17,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:17,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:48:17,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:17,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:48:17,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:48:17,101 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 123 [2024-11-07 15:48:17,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 123 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 15:48:17,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:17,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 123 [2024-11-07 15:48:17,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:17,198 INFO L124 PetriNetUnfolderBase]: 7/230 cut-off events. [2024-11-07 15:48:17,198 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-07 15:48:17,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 230 events. 7/230 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 577 event pairs, 6 based on Foata normal form. 9/211 useless extension candidates. Maximal degree in co-relation 172. Up to 25 conditions per place. [2024-11-07 15:48:17,205 INFO L140 encePairwiseOnDemand]: 117/123 looper letters, 10 selfloop transitions, 2 changer transitions 1/119 dead transitions. [2024-11-07 15:48:17,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 119 transitions, 269 flow [2024-11-07 15:48:17,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:48:17,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:48:17,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 337 transitions. [2024-11-07 15:48:17,221 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9132791327913279 [2024-11-07 15:48:17,222 INFO L175 Difference]: Start difference. First operand has 122 places, 123 transitions, 253 flow. Second operand 3 states and 337 transitions. [2024-11-07 15:48:17,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 119 transitions, 269 flow [2024-11-07 15:48:17,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 119 transitions, 269 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:48:17,235 INFO L231 Difference]: Finished difference. Result has 123 places, 118 transitions, 247 flow [2024-11-07 15:48:17,238 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=247, PETRI_PLACES=123, PETRI_TRANSITIONS=118} [2024-11-07 15:48:17,242 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 1 predicate places. [2024-11-07 15:48:17,243 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 118 transitions, 247 flow [2024-11-07 15:48:17,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 15:48:17,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:17,244 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] [2024-11-07 15:48:17,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 15:48:17,245 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-07 15:48:17,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:17,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1893361870, now seen corresponding path program 1 times [2024-11-07 15:48:17,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:17,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079239903] [2024-11-07 15:48:17,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:17,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:17,381 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 15:48:17,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:17,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079239903] [2024-11-07 15:48:17,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079239903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:17,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:17,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:48:17,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404492926] [2024-11-07 15:48:17,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:17,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:48:17,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:17,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:48:17,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:48:17,399 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 123 [2024-11-07 15:48:17,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 118 transitions, 247 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 15:48:17,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:17,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 123 [2024-11-07 15:48:17,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:17,460 INFO L124 PetriNetUnfolderBase]: 9/220 cut-off events. [2024-11-07 15:48:17,461 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-07 15:48:17,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 220 events. 9/220 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 502 event pairs, 3 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 217. Up to 24 conditions per place. [2024-11-07 15:48:17,465 INFO L140 encePairwiseOnDemand]: 119/123 looper letters, 11 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2024-11-07 15:48:17,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 120 transitions, 277 flow [2024-11-07 15:48:17,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:48:17,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:48:17,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2024-11-07 15:48:17,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.926829268292683 [2024-11-07 15:48:17,468 INFO L175 Difference]: Start difference. First operand has 123 places, 118 transitions, 247 flow. Second operand 3 states and 342 transitions. [2024-11-07 15:48:17,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 120 transitions, 277 flow [2024-11-07 15:48:17,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 120 transitions, 273 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:48:17,472 INFO L231 Difference]: Finished difference. Result has 121 places, 118 transitions, 253 flow [2024-11-07 15:48:17,474 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=253, PETRI_PLACES=121, PETRI_TRANSITIONS=118} [2024-11-07 15:48:17,475 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -1 predicate places. [2024-11-07 15:48:17,475 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 118 transitions, 253 flow [2024-11-07 15:48:17,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 15:48:17,476 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:17,476 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 15:48:17,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 15:48:17,476 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-07 15:48:17,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:17,478 INFO L85 PathProgramCache]: Analyzing trace with hash 279472325, now seen corresponding path program 1 times [2024-11-07 15:48:17,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:17,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73918032] [2024-11-07 15:48:17,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:17,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:17,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:18,088 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 15:48:18,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:18,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73918032] [2024-11-07 15:48:18,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73918032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:18,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:18,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:48:18,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022580618] [2024-11-07 15:48:18,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:18,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:48:18,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:18,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:48:18,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:48:18,255 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 123 [2024-11-07 15:48:18,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 118 transitions, 253 flow. Second operand has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 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 15:48:18,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:18,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 123 [2024-11-07 15:48:18,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:18,450 INFO L124 PetriNetUnfolderBase]: 101/536 cut-off events. [2024-11-07 15:48:18,450 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-07 15:48:18,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 536 events. 101/536 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2809 event pairs, 45 based on Foata normal form. 0/482 useless extension candidates. Maximal degree in co-relation 689. Up to 195 conditions per place. [2024-11-07 15:48:18,457 INFO L140 encePairwiseOnDemand]: 112/123 looper letters, 33 selfloop transitions, 22 changer transitions 0/147 dead transitions. [2024-11-07 15:48:18,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 147 transitions, 421 flow [2024-11-07 15:48:18,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:48:18,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:48:18,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 620 transitions. [2024-11-07 15:48:18,462 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8401084010840109 [2024-11-07 15:48:18,462 INFO L175 Difference]: Start difference. First operand has 121 places, 118 transitions, 253 flow. Second operand 6 states and 620 transitions. [2024-11-07 15:48:18,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 147 transitions, 421 flow [2024-11-07 15:48:18,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 147 transitions, 421 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:48:18,467 INFO L231 Difference]: Finished difference. Result has 131 places, 139 transitions, 403 flow [2024-11-07 15:48:18,467 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=403, PETRI_PLACES=131, PETRI_TRANSITIONS=139} [2024-11-07 15:48:18,469 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 9 predicate places. [2024-11-07 15:48:18,469 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 139 transitions, 403 flow [2024-11-07 15:48:18,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 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 15:48:18,470 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:18,470 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 15:48:18,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 15:48:18,470 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-07 15:48:18,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:18,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1492348292, now seen corresponding path program 1 times [2024-11-07 15:48:18,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:18,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478566917] [2024-11-07 15:48:18,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:18,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:18,579 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 15:48:18,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:18,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478566917] [2024-11-07 15:48:18,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478566917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:18,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:18,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:48:18,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726371331] [2024-11-07 15:48:18,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:18,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 15:48:18,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:18,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 15:48:18,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 15:48:18,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 123 [2024-11-07 15:48:18,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 139 transitions, 403 flow. Second operand has 5 states, 5 states have (on average 106.4) internal successors, (532), 5 states have internal predecessors, (532), 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 15:48:18,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:18,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 123 [2024-11-07 15:48:18,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:18,743 INFO L124 PetriNetUnfolderBase]: 48/379 cut-off events. [2024-11-07 15:48:18,743 INFO L125 PetriNetUnfolderBase]: For 35/43 co-relation queries the response was YES. [2024-11-07 15:48:18,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 379 events. 48/379 cut-off events. For 35/43 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1484 event pairs, 6 based on Foata normal form. 1/357 useless extension candidates. Maximal degree in co-relation 495. Up to 53 conditions per place. [2024-11-07 15:48:18,745 INFO L140 encePairwiseOnDemand]: 115/123 looper letters, 15 selfloop transitions, 2 changer transitions 5/146 dead transitions. [2024-11-07 15:48:18,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 146 transitions, 461 flow [2024-11-07 15:48:18,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:48:18,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:48:18,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 653 transitions. [2024-11-07 15:48:18,747 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8848238482384824 [2024-11-07 15:48:18,748 INFO L175 Difference]: Start difference. First operand has 131 places, 139 transitions, 403 flow. Second operand 6 states and 653 transitions. [2024-11-07 15:48:18,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 146 transitions, 461 flow [2024-11-07 15:48:18,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 146 transitions, 461 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:48:18,754 INFO L231 Difference]: Finished difference. Result has 140 places, 139 transitions, 421 flow [2024-11-07 15:48:18,755 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=421, PETRI_PLACES=140, PETRI_TRANSITIONS=139} [2024-11-07 15:48:18,756 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 18 predicate places. [2024-11-07 15:48:18,756 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 139 transitions, 421 flow [2024-11-07 15:48:18,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 106.4) internal successors, (532), 5 states have internal predecessors, (532), 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 15:48:18,757 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:18,757 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:48:18,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 15:48:18,757 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-07 15:48:18,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:18,758 INFO L85 PathProgramCache]: Analyzing trace with hash 851560696, now seen corresponding path program 1 times [2024-11-07 15:48:18,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:18,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653322126] [2024-11-07 15:48:18,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:18,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:18,810 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 15:48:18,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:18,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653322126] [2024-11-07 15:48:18,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653322126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:18,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:18,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:48:18,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652927597] [2024-11-07 15:48:18,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:18,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:48:18,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:18,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:48:18,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:48:18,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 123 [2024-11-07 15:48:18,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 139 transitions, 421 flow. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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 15:48:18,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:18,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 123 [2024-11-07 15:48:18,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:18,873 INFO L124 PetriNetUnfolderBase]: 27/272 cut-off events. [2024-11-07 15:48:18,873 INFO L125 PetriNetUnfolderBase]: For 30/39 co-relation queries the response was YES. [2024-11-07 15:48:18,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 272 events. 27/272 cut-off events. For 30/39 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 884 event pairs, 0 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 372. Up to 49 conditions per place. [2024-11-07 15:48:18,876 INFO L140 encePairwiseOnDemand]: 119/123 looper letters, 7 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2024-11-07 15:48:18,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 137 transitions, 435 flow [2024-11-07 15:48:18,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:48:18,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:48:18,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2024-11-07 15:48:18,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9159891598915989 [2024-11-07 15:48:18,877 INFO L175 Difference]: Start difference. First operand has 140 places, 139 transitions, 421 flow. Second operand 3 states and 338 transitions. [2024-11-07 15:48:18,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 137 transitions, 435 flow [2024-11-07 15:48:18,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 137 transitions, 421 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-07 15:48:18,907 INFO L231 Difference]: Finished difference. Result has 132 places, 137 transitions, 407 flow [2024-11-07 15:48:18,907 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=407, PETRI_PLACES=132, PETRI_TRANSITIONS=137} [2024-11-07 15:48:18,908 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 10 predicate places. [2024-11-07 15:48:18,908 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 137 transitions, 407 flow [2024-11-07 15:48:18,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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 15:48:18,908 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:18,909 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] [2024-11-07 15:48:18,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 15:48:18,909 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-07 15:48:18,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:18,910 INFO L85 PathProgramCache]: Analyzing trace with hash 213761501, now seen corresponding path program 1 times [2024-11-07 15:48:18,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:18,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652684945] [2024-11-07 15:48:18,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:18,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:18,950 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 15:48:18,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:18,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652684945] [2024-11-07 15:48:18,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652684945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:18,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:18,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:48:18,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281820541] [2024-11-07 15:48:18,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:18,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:48:18,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:18,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:48:18,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:48:18,975 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 123 [2024-11-07 15:48:18,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 137 transitions, 407 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 15:48:18,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:18,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 123 [2024-11-07 15:48:18,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:19,017 INFO L124 PetriNetUnfolderBase]: 27/271 cut-off events. [2024-11-07 15:48:19,018 INFO L125 PetriNetUnfolderBase]: For 30/39 co-relation queries the response was YES. [2024-11-07 15:48:19,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 271 events. 27/271 cut-off events. For 30/39 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 879 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 361. Up to 49 conditions per place. [2024-11-07 15:48:19,019 INFO L140 encePairwiseOnDemand]: 120/123 looper letters, 8 selfloop transitions, 2 changer transitions 0/136 dead transitions. [2024-11-07 15:48:19,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 136 transitions, 425 flow [2024-11-07 15:48:19,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:48:19,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:48:19,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2024-11-07 15:48:19,021 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9159891598915989 [2024-11-07 15:48:19,022 INFO L175 Difference]: Start difference. First operand has 132 places, 137 transitions, 407 flow. Second operand 3 states and 338 transitions. [2024-11-07 15:48:19,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 136 transitions, 425 flow [2024-11-07 15:48:19,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 136 transitions, 421 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:48:19,028 INFO L231 Difference]: Finished difference. Result has 131 places, 136 transitions, 405 flow [2024-11-07 15:48:19,028 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=405, PETRI_PLACES=131, PETRI_TRANSITIONS=136} [2024-11-07 15:48:19,029 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 9 predicate places. [2024-11-07 15:48:19,029 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 136 transitions, 405 flow [2024-11-07 15:48:19,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 15:48:19,030 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:19,030 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:48:19,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 15:48:19,031 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-07 15:48:19,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:19,031 INFO L85 PathProgramCache]: Analyzing trace with hash -593791463, now seen corresponding path program 1 times [2024-11-07 15:48:19,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:19,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703349576] [2024-11-07 15:48:19,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:19,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:19,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 15:48:19,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:19,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703349576] [2024-11-07 15:48:19,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703349576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:19,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:19,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:48:19,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023422934] [2024-11-07 15:48:19,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:19,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:48:19,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:19,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:48:19,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:48:19,526 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 123 [2024-11-07 15:48:19,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 136 transitions, 405 flow. Second operand has 6 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 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 15:48:19,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:19,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 123 [2024-11-07 15:48:19,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:19,659 INFO L124 PetriNetUnfolderBase]: 104/617 cut-off events. [2024-11-07 15:48:19,659 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2024-11-07 15:48:19,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 617 events. 104/617 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3288 event pairs, 26 based on Foata normal form. 0/589 useless extension candidates. Maximal degree in co-relation 1023. Up to 203 conditions per place. [2024-11-07 15:48:19,663 INFO L140 encePairwiseOnDemand]: 112/123 looper letters, 48 selfloop transitions, 21 changer transitions 7/166 dead transitions. [2024-11-07 15:48:19,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 166 transitions, 646 flow [2024-11-07 15:48:19,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:48:19,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:48:19,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 631 transitions. [2024-11-07 15:48:19,666 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8550135501355014 [2024-11-07 15:48:19,666 INFO L175 Difference]: Start difference. First operand has 131 places, 136 transitions, 405 flow. Second operand 6 states and 631 transitions. [2024-11-07 15:48:19,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 166 transitions, 646 flow [2024-11-07 15:48:19,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 166 transitions, 642 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:48:19,670 INFO L231 Difference]: Finished difference. Result has 139 places, 151 transitions, 562 flow [2024-11-07 15:48:19,671 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=562, PETRI_PLACES=139, PETRI_TRANSITIONS=151} [2024-11-07 15:48:19,671 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 17 predicate places. [2024-11-07 15:48:19,672 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 151 transitions, 562 flow [2024-11-07 15:48:19,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 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 15:48:19,673 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:19,673 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:48:19,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 15:48:19,673 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-07 15:48:19,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:19,674 INFO L85 PathProgramCache]: Analyzing trace with hash -2135801545, now seen corresponding path program 1 times [2024-11-07 15:48:19,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:19,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264067261] [2024-11-07 15:48:19,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:19,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:48:19,702 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 15:48:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:48:19,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 15:48:19,741 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 15:48:19,742 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-07 15:48:19,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-07 15:48:19,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-07 15:48:19,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-07 15:48:19,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-07 15:48:19,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-07 15:48:19,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-11-07 15:48:19,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-07 15:48:19,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-07 15:48:19,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-07 15:48:19,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-07 15:48:19,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-07 15:48:19,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-07 15:48:19,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-07 15:48:19,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-07 15:48:19,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 15:48:19,745 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:48:19,747 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 15:48:19,747 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-07 15:48:19,774 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 15:48:19,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 163 transitions, 342 flow [2024-11-07 15:48:19,802 INFO L124 PetriNetUnfolderBase]: 11/269 cut-off events. [2024-11-07 15:48:19,803 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2024-11-07 15:48:19,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 269 events. 11/269 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 605 event pairs, 0 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 160. Up to 8 conditions per place. [2024-11-07 15:48:19,804 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 163 transitions, 342 flow [2024-11-07 15:48:19,806 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 163 transitions, 342 flow [2024-11-07 15:48:19,807 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:48:19,807 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;@125bef3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:48:19,807 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-07 15:48:19,810 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:48:19,810 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-11-07 15:48:19,810 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:48:19,810 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:19,810 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:48:19,810 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-07 15:48:19,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:19,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1838005210, now seen corresponding path program 1 times [2024-11-07 15:48:19,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:19,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367192139] [2024-11-07 15:48:19,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:19,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:19,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:19,832 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 15:48:19,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:19,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367192139] [2024-11-07 15:48:19,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367192139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:19,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:19,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:48:19,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145050316] [2024-11-07 15:48:19,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:19,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:48:19,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:19,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:48:19,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:48:19,856 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 163 [2024-11-07 15:48:19,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 163 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 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 15:48:19,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:19,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 163 [2024-11-07 15:48:19,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:20,011 INFO L124 PetriNetUnfolderBase]: 81/1022 cut-off events. [2024-11-07 15:48:20,011 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-07 15:48:20,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1213 conditions, 1022 events. 81/1022 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6455 event pairs, 78 based on Foata normal form. 40/927 useless extension candidates. Maximal degree in co-relation 874. Up to 162 conditions per place. [2024-11-07 15:48:20,021 INFO L140 encePairwiseOnDemand]: 157/163 looper letters, 15 selfloop transitions, 2 changer transitions 1/159 dead transitions. [2024-11-07 15:48:20,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 159 transitions, 368 flow [2024-11-07 15:48:20,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:48:20,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:48:20,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 447 transitions. [2024-11-07 15:48:20,023 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9141104294478528 [2024-11-07 15:48:20,024 INFO L175 Difference]: Start difference. First operand has 163 places, 163 transitions, 342 flow. Second operand 3 states and 447 transitions. [2024-11-07 15:48:20,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 159 transitions, 368 flow [2024-11-07 15:48:20,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 159 transitions, 368 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:48:20,027 INFO L231 Difference]: Finished difference. Result has 164 places, 158 transitions, 336 flow [2024-11-07 15:48:20,027 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=164, PETRI_TRANSITIONS=158} [2024-11-07 15:48:20,029 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 1 predicate places. [2024-11-07 15:48:20,030 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 158 transitions, 336 flow [2024-11-07 15:48:20,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 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 15:48:20,030 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:20,030 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] [2024-11-07 15:48:20,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 15:48:20,031 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-07 15:48:20,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:20,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1976212306, now seen corresponding path program 1 times [2024-11-07 15:48:20,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:20,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420914134] [2024-11-07 15:48:20,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:20,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:20,075 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 15:48:20,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:20,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420914134] [2024-11-07 15:48:20,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420914134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:20,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:20,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:48:20,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270962199] [2024-11-07 15:48:20,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:20,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:48:20,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:20,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:48:20,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:48:20,094 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 163 [2024-11-07 15:48:20,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 158 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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 15:48:20,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:20,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 163 [2024-11-07 15:48:20,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:20,236 INFO L124 PetriNetUnfolderBase]: 132/1100 cut-off events. [2024-11-07 15:48:20,237 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-11-07 15:48:20,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1383 conditions, 1100 events. 132/1100 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 6908 event pairs, 61 based on Foata normal form. 0/1013 useless extension candidates. Maximal degree in co-relation 1342. Up to 227 conditions per place. [2024-11-07 15:48:20,245 INFO L140 encePairwiseOnDemand]: 157/163 looper letters, 20 selfloop transitions, 3 changer transitions 0/163 dead transitions. [2024-11-07 15:48:20,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 163 transitions, 397 flow [2024-11-07 15:48:20,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:48:20,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:48:20,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 452 transitions. [2024-11-07 15:48:20,246 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9243353783231084 [2024-11-07 15:48:20,247 INFO L175 Difference]: Start difference. First operand has 164 places, 158 transitions, 336 flow. Second operand 3 states and 452 transitions. [2024-11-07 15:48:20,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 163 transitions, 397 flow [2024-11-07 15:48:20,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 163 transitions, 393 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:48:20,249 INFO L231 Difference]: Finished difference. Result has 161 places, 158 transitions, 347 flow [2024-11-07 15:48:20,249 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=347, PETRI_PLACES=161, PETRI_TRANSITIONS=158} [2024-11-07 15:48:20,251 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, -2 predicate places. [2024-11-07 15:48:20,251 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 158 transitions, 347 flow [2024-11-07 15:48:20,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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 15:48:20,252 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:20,252 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 15:48:20,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 15:48:20,252 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-07 15:48:20,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:20,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1060372741, now seen corresponding path program 1 times [2024-11-07 15:48:20,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:20,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17396874] [2024-11-07 15:48:20,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:20,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:20,523 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 15:48:20,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:20,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17396874] [2024-11-07 15:48:20,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17396874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:20,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:20,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:48:20,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278237409] [2024-11-07 15:48:20,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:20,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:48:20,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:20,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:48:20,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:48:20,677 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 163 [2024-11-07 15:48:20,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 158 transitions, 347 flow. Second operand has 6 states, 6 states have (on average 127.5) internal successors, (765), 6 states have internal predecessors, (765), 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 15:48:20,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:20,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 163 [2024-11-07 15:48:20,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:21,560 INFO L124 PetriNetUnfolderBase]: 1894/6617 cut-off events. [2024-11-07 15:48:21,561 INFO L125 PetriNetUnfolderBase]: For 118/118 co-relation queries the response was YES. [2024-11-07 15:48:21,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10038 conditions, 6617 events. 1894/6617 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 61977 event pairs, 1033 based on Foata normal form. 0/5913 useless extension candidates. Maximal degree in co-relation 5446. Up to 2649 conditions per place. [2024-11-07 15:48:21,607 INFO L140 encePairwiseOnDemand]: 148/163 looper letters, 50 selfloop transitions, 38 changer transitions 0/212 dead transitions. [2024-11-07 15:48:21,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 212 transitions, 636 flow [2024-11-07 15:48:21,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:48:21,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:48:21,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 845 transitions. [2024-11-07 15:48:21,610 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8640081799591002 [2024-11-07 15:48:21,610 INFO L175 Difference]: Start difference. First operand has 161 places, 158 transitions, 347 flow. Second operand 6 states and 845 transitions. [2024-11-07 15:48:21,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 212 transitions, 636 flow [2024-11-07 15:48:21,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 212 transitions, 636 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:48:21,615 INFO L231 Difference]: Finished difference. Result has 171 places, 195 transitions, 601 flow [2024-11-07 15:48:21,616 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=601, PETRI_PLACES=171, PETRI_TRANSITIONS=195} [2024-11-07 15:48:21,616 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 8 predicate places. [2024-11-07 15:48:21,616 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 195 transitions, 601 flow [2024-11-07 15:48:21,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.5) internal successors, (765), 6 states have internal predecessors, (765), 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 15:48:21,617 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:21,617 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 15:48:21,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 15:48:21,618 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-07 15:48:21,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:21,618 INFO L85 PathProgramCache]: Analyzing trace with hash -711447876, now seen corresponding path program 1 times [2024-11-07 15:48:21,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:21,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61314578] [2024-11-07 15:48:21,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:21,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:21,697 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 15:48:21,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:21,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61314578] [2024-11-07 15:48:21,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61314578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:21,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:21,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:48:21,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574367428] [2024-11-07 15:48:21,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:21,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 15:48:21,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:21,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 15:48:21,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 15:48:21,776 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 163 [2024-11-07 15:48:21,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 195 transitions, 601 flow. Second operand has 5 states, 5 states have (on average 142.4) internal successors, (712), 5 states have internal predecessors, (712), 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 15:48:21,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:21,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 163 [2024-11-07 15:48:21,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:22,269 INFO L124 PetriNetUnfolderBase]: 798/3928 cut-off events. [2024-11-07 15:48:22,269 INFO L125 PetriNetUnfolderBase]: For 430/661 co-relation queries the response was YES. [2024-11-07 15:48:22,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6350 conditions, 3928 events. 798/3928 cut-off events. For 430/661 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 35076 event pairs, 305 based on Foata normal form. 2/3565 useless extension candidates. Maximal degree in co-relation 3849. Up to 1048 conditions per place. [2024-11-07 15:48:22,295 INFO L140 encePairwiseOnDemand]: 155/163 looper letters, 20 selfloop transitions, 2 changer transitions 5/203 dead transitions. [2024-11-07 15:48:22,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 203 transitions, 671 flow [2024-11-07 15:48:22,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:48:22,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:48:22,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 874 transitions. [2024-11-07 15:48:22,298 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8936605316973415 [2024-11-07 15:48:22,298 INFO L175 Difference]: Start difference. First operand has 171 places, 195 transitions, 601 flow. Second operand 6 states and 874 transitions. [2024-11-07 15:48:22,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 203 transitions, 671 flow [2024-11-07 15:48:22,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 203 transitions, 671 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:48:22,306 INFO L231 Difference]: Finished difference. Result has 180 places, 196 transitions, 623 flow [2024-11-07 15:48:22,306 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=601, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=623, PETRI_PLACES=180, PETRI_TRANSITIONS=196} [2024-11-07 15:48:22,306 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 17 predicate places. [2024-11-07 15:48:22,306 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 196 transitions, 623 flow [2024-11-07 15:48:22,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 142.4) internal successors, (712), 5 states have internal predecessors, (712), 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 15:48:22,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:22,307 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:48:22,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 15:48:22,307 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-07 15:48:22,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:22,308 INFO L85 PathProgramCache]: Analyzing trace with hash -185179167, now seen corresponding path program 1 times [2024-11-07 15:48:22,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:22,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016212093] [2024-11-07 15:48:22,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:22,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:22,339 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 15:48:22,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:22,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016212093] [2024-11-07 15:48:22,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016212093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:22,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:22,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:48:22,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302189327] [2024-11-07 15:48:22,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:22,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:48:22,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:22,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:48:22,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:48:22,361 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 163 [2024-11-07 15:48:22,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 196 transitions, 623 flow. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 15:48:22,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:22,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 163 [2024-11-07 15:48:22,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:22,882 INFO L124 PetriNetUnfolderBase]: 873/3951 cut-off events. [2024-11-07 15:48:22,883 INFO L125 PetriNetUnfolderBase]: For 741/1082 co-relation queries the response was YES. [2024-11-07 15:48:22,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7130 conditions, 3951 events. 873/3951 cut-off events. For 741/1082 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 37619 event pairs, 171 based on Foata normal form. 1/3640 useless extension candidates. Maximal degree in co-relation 7031. Up to 1139 conditions per place. [2024-11-07 15:48:22,921 INFO L140 encePairwiseOnDemand]: 149/163 looper letters, 29 selfloop transitions, 10 changer transitions 0/213 dead transitions. [2024-11-07 15:48:22,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 213 transitions, 746 flow [2024-11-07 15:48:22,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:48:22,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:48:22,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 457 transitions. [2024-11-07 15:48:22,924 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.934560327198364 [2024-11-07 15:48:22,924 INFO L175 Difference]: Start difference. First operand has 180 places, 196 transitions, 623 flow. Second operand 3 states and 457 transitions. [2024-11-07 15:48:22,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 213 transitions, 746 flow [2024-11-07 15:48:22,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 213 transitions, 734 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-07 15:48:22,942 INFO L231 Difference]: Finished difference. Result has 177 places, 206 transitions, 699 flow [2024-11-07 15:48:22,944 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=699, PETRI_PLACES=177, PETRI_TRANSITIONS=206} [2024-11-07 15:48:22,945 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 14 predicate places. [2024-11-07 15:48:22,945 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 206 transitions, 699 flow [2024-11-07 15:48:22,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 15:48:22,945 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:22,945 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] [2024-11-07 15:48:22,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 15:48:22,946 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-07 15:48:22,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:22,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1784947014, now seen corresponding path program 1 times [2024-11-07 15:48:22,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:22,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942045311] [2024-11-07 15:48:22,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:22,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:22,994 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 15:48:22,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:22,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942045311] [2024-11-07 15:48:22,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942045311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:22,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:22,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:48:22,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378269686] [2024-11-07 15:48:22,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:22,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:48:22,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:22,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:48:22,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:48:23,026 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 163 [2024-11-07 15:48:23,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 206 transitions, 699 flow. Second operand has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 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 15:48:23,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:23,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 163 [2024-11-07 15:48:23,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:23,695 INFO L124 PetriNetUnfolderBase]: 933/4469 cut-off events. [2024-11-07 15:48:23,696 INFO L125 PetriNetUnfolderBase]: For 1024/1415 co-relation queries the response was YES. [2024-11-07 15:48:23,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8163 conditions, 4469 events. 933/4469 cut-off events. For 1024/1415 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 44732 event pairs, 189 based on Foata normal form. 9/4125 useless extension candidates. Maximal degree in co-relation 7080. Up to 1280 conditions per place. [2024-11-07 15:48:23,743 INFO L140 encePairwiseOnDemand]: 156/163 looper letters, 26 selfloop transitions, 9 changer transitions 0/217 dead transitions. [2024-11-07 15:48:23,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 217 transitions, 815 flow [2024-11-07 15:48:23,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:48:23,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:48:23,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2024-11-07 15:48:23,745 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9284253578732107 [2024-11-07 15:48:23,745 INFO L175 Difference]: Start difference. First operand has 177 places, 206 transitions, 699 flow. Second operand 3 states and 454 transitions. [2024-11-07 15:48:23,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 217 transitions, 815 flow [2024-11-07 15:48:23,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 217 transitions, 789 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:48:23,761 INFO L231 Difference]: Finished difference. Result has 179 places, 213 transitions, 755 flow [2024-11-07 15:48:23,761 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=679, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=755, PETRI_PLACES=179, PETRI_TRANSITIONS=213} [2024-11-07 15:48:23,762 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 16 predicate places. [2024-11-07 15:48:23,762 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 213 transitions, 755 flow [2024-11-07 15:48:23,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 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 15:48:23,763 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:23,763 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:48:23,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 15:48:23,763 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-07 15:48:23,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:23,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1781970850, now seen corresponding path program 1 times [2024-11-07 15:48:23,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:23,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727930618] [2024-11-07 15:48:23,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:23,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:24,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 15:48:24,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:24,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727930618] [2024-11-07 15:48:24,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727930618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:24,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:24,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:48:24,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319424191] [2024-11-07 15:48:24,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:24,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:48:24,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:24,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:48:24,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:48:24,213 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 163 [2024-11-07 15:48:24,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 213 transitions, 755 flow. Second operand has 6 states, 6 states have (on average 130.16666666666666) internal successors, (781), 6 states have internal predecessors, (781), 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 15:48:24,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:24,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 163 [2024-11-07 15:48:24,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:25,511 INFO L124 PetriNetUnfolderBase]: 3463/12362 cut-off events. [2024-11-07 15:48:25,511 INFO L125 PetriNetUnfolderBase]: For 3173/3468 co-relation queries the response was YES. [2024-11-07 15:48:25,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25334 conditions, 12362 events. 3463/12362 cut-off events. For 3173/3468 co-relation queries the response was YES. Maximal size of possible extension queue 496. Compared 138879 event pairs, 1210 based on Foata normal form. 8/11483 useless extension candidates. Maximal degree in co-relation 23198. Up to 4790 conditions per place. [2024-11-07 15:48:25,587 INFO L140 encePairwiseOnDemand]: 148/163 looper letters, 84 selfloop transitions, 38 changer transitions 0/268 dead transitions. [2024-11-07 15:48:25,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 268 transitions, 1179 flow [2024-11-07 15:48:25,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:48:25,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:48:25,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 856 transitions. [2024-11-07 15:48:25,590 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8752556237218814 [2024-11-07 15:48:25,590 INFO L175 Difference]: Start difference. First operand has 179 places, 213 transitions, 755 flow. Second operand 6 states and 856 transitions. [2024-11-07 15:48:25,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 268 transitions, 1179 flow [2024-11-07 15:48:25,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 268 transitions, 1161 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:48:25,610 INFO L231 Difference]: Finished difference. Result has 187 places, 250 transitions, 1055 flow [2024-11-07 15:48:25,610 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1055, PETRI_PLACES=187, PETRI_TRANSITIONS=250} [2024-11-07 15:48:25,611 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 24 predicate places. [2024-11-07 15:48:25,611 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 250 transitions, 1055 flow [2024-11-07 15:48:25,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.16666666666666) internal successors, (781), 6 states have internal predecessors, (781), 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 15:48:25,612 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:25,612 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:48:25,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 15:48:25,612 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-07 15:48:25,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:25,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1194309672, now seen corresponding path program 1 times [2024-11-07 15:48:25,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:25,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085335676] [2024-11-07 15:48:25,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:25,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:25,914 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 15:48:25,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:25,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085335676] [2024-11-07 15:48:25,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085335676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:25,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:25,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:48:25,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141519939] [2024-11-07 15:48:25,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:25,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:48:25,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:25,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:48:25,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:48:26,019 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 163 [2024-11-07 15:48:26,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 250 transitions, 1055 flow. Second operand has 6 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 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 15:48:26,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:26,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 163 [2024-11-07 15:48:26,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:28,297 INFO L124 PetriNetUnfolderBase]: 6379/20106 cut-off events. [2024-11-07 15:48:28,297 INFO L125 PetriNetUnfolderBase]: For 9906/10186 co-relation queries the response was YES. [2024-11-07 15:48:28,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48936 conditions, 20106 events. 6379/20106 cut-off events. For 9906/10186 co-relation queries the response was YES. Maximal size of possible extension queue 593. Compared 225487 event pairs, 1628 based on Foata normal form. 12/18714 useless extension candidates. Maximal degree in co-relation 43007. Up to 8153 conditions per place. [2024-11-07 15:48:28,405 INFO L140 encePairwiseOnDemand]: 144/163 looper letters, 139 selfloop transitions, 118 changer transitions 0/405 dead transitions. [2024-11-07 15:48:28,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 405 transitions, 2443 flow [2024-11-07 15:48:28,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:48:28,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:48:28,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 882 transitions. [2024-11-07 15:48:28,409 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.901840490797546 [2024-11-07 15:48:28,409 INFO L175 Difference]: Start difference. First operand has 187 places, 250 transitions, 1055 flow. Second operand 6 states and 882 transitions. [2024-11-07 15:48:28,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 405 transitions, 2443 flow [2024-11-07 15:48:28,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 405 transitions, 2311 flow, removed 66 selfloop flow, removed 0 redundant places. [2024-11-07 15:48:28,478 INFO L231 Difference]: Finished difference. Result has 196 places, 362 transitions, 2121 flow [2024-11-07 15:48:28,479 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=991, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2121, PETRI_PLACES=196, PETRI_TRANSITIONS=362} [2024-11-07 15:48:28,479 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 33 predicate places. [2024-11-07 15:48:28,480 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 362 transitions, 2121 flow [2024-11-07 15:48:28,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 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 15:48:28,480 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:28,480 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:48:28,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 15:48:28,480 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-07 15:48:28,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:28,481 INFO L85 PathProgramCache]: Analyzing trace with hash 144639777, now seen corresponding path program 1 times [2024-11-07 15:48:28,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:28,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750658] [2024-11-07 15:48:28,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:28,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:28,522 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 15:48:28,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:28,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750658] [2024-11-07 15:48:28,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:28,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:28,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:48:28,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473593884] [2024-11-07 15:48:28,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:28,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:48:28,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:28,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:48:28,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:48:28,549 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 163 [2024-11-07 15:48:28,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 362 transitions, 2121 flow. Second operand has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 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 15:48:28,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:28,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 163 [2024-11-07 15:48:28,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:30,009 INFO L124 PetriNetUnfolderBase]: 4457/15454 cut-off events. [2024-11-07 15:48:30,009 INFO L125 PetriNetUnfolderBase]: For 11548/13305 co-relation queries the response was YES. [2024-11-07 15:48:30,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42386 conditions, 15454 events. 4457/15454 cut-off events. For 11548/13305 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 174330 event pairs, 356 based on Foata normal form. 12/14769 useless extension candidates. Maximal degree in co-relation 38260. Up to 3717 conditions per place. [2024-11-07 15:48:30,120 INFO L140 encePairwiseOnDemand]: 156/163 looper letters, 28 selfloop transitions, 11 changer transitions 0/372 dead transitions. [2024-11-07 15:48:30,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 372 transitions, 2236 flow [2024-11-07 15:48:30,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:48:30,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:48:30,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2024-11-07 15:48:30,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9263803680981595 [2024-11-07 15:48:30,122 INFO L175 Difference]: Start difference. First operand has 196 places, 362 transitions, 2121 flow. Second operand 3 states and 453 transitions. [2024-11-07 15:48:30,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 372 transitions, 2236 flow [2024-11-07 15:48:30,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 372 transitions, 2200 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-07 15:48:30,539 INFO L231 Difference]: Finished difference. Result has 200 places, 369 transitions, 2173 flow [2024-11-07 15:48:30,540 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=2085, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2173, PETRI_PLACES=200, PETRI_TRANSITIONS=369} [2024-11-07 15:48:30,540 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 37 predicate places. [2024-11-07 15:48:30,541 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 369 transitions, 2173 flow [2024-11-07 15:48:30,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 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 15:48:30,541 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:30,542 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:48:30,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 15:48:30,542 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-07 15:48:30,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:30,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1220047644, now seen corresponding path program 1 times [2024-11-07 15:48:30,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:30,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918177142] [2024-11-07 15:48:30,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:30,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:48:30,576 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 15:48:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:48:30,604 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 15:48:30,605 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 15:48:30,605 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-07 15:48:30,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-07 15:48:30,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-07 15:48:30,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-07 15:48:30,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-07 15:48:30,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-07 15:48:30,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-11-07 15:48:30,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-07 15:48:30,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-07 15:48:30,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-07 15:48:30,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-07 15:48:30,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-07 15:48:30,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-07 15:48:30,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-07 15:48:30,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-07 15:48:30,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-07 15:48:30,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-07 15:48:30,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-07 15:48:30,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-07 15:48:30,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-07 15:48:30,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 15:48:30,608 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:48:30,609 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 15:48:30,609 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-07 15:48:30,653 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-07 15:48:30,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 204 places, 203 transitions, 433 flow [2024-11-07 15:48:30,710 INFO L124 PetriNetUnfolderBase]: 21/433 cut-off events. [2024-11-07 15:48:30,710 INFO L125 PetriNetUnfolderBase]: For 19/22 co-relation queries the response was YES. [2024-11-07 15:48:30,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 433 events. 21/433 cut-off events. For 19/22 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1289 event pairs, 1 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 277. Up to 16 conditions per place. [2024-11-07 15:48:30,713 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 203 transitions, 433 flow [2024-11-07 15:48:30,717 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 204 places, 203 transitions, 433 flow [2024-11-07 15:48:30,718 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:48:30,718 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;@125bef3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:48:30,718 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-07 15:48:30,721 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:48:30,721 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-11-07 15:48:30,721 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:48:30,721 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:30,721 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:48:30,723 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-07 15:48:30,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:30,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1695812527, now seen corresponding path program 1 times [2024-11-07 15:48:30,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:30,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025055860] [2024-11-07 15:48:30,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:30,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:30,751 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 15:48:30,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:30,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025055860] [2024-11-07 15:48:30,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025055860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:30,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:30,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:48:30,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712853064] [2024-11-07 15:48:30,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:30,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:48:30,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:30,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:48:30,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:48:30,781 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 203 [2024-11-07 15:48:30,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 203 transitions, 433 flow. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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 15:48:30,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:30,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 203 [2024-11-07 15:48:30,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:31,369 INFO L124 PetriNetUnfolderBase]: 656/5099 cut-off events. [2024-11-07 15:48:31,369 INFO L125 PetriNetUnfolderBase]: For 337/337 co-relation queries the response was YES. [2024-11-07 15:48:31,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6310 conditions, 5099 events. 656/5099 cut-off events. For 337/337 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 51112 event pairs, 643 based on Foata normal form. 188/4624 useless extension candidates. Maximal degree in co-relation 4712. Up to 1052 conditions per place. [2024-11-07 15:48:31,404 INFO L140 encePairwiseOnDemand]: 197/203 looper letters, 20 selfloop transitions, 2 changer transitions 1/199 dead transitions. [2024-11-07 15:48:31,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 199 transitions, 469 flow [2024-11-07 15:48:31,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:48:31,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:48:31,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions. [2024-11-07 15:48:31,407 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9146141215106732 [2024-11-07 15:48:31,407 INFO L175 Difference]: Start difference. First operand has 204 places, 203 transitions, 433 flow. Second operand 3 states and 557 transitions. [2024-11-07 15:48:31,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 199 transitions, 469 flow [2024-11-07 15:48:31,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 199 transitions, 469 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:48:31,410 INFO L231 Difference]: Finished difference. Result has 205 places, 198 transitions, 427 flow [2024-11-07 15:48:31,411 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=427, PETRI_PLACES=205, PETRI_TRANSITIONS=198} [2024-11-07 15:48:31,411 INFO L277 CegarLoopForPetriNet]: 204 programPoint places, 1 predicate places. [2024-11-07 15:48:31,411 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 198 transitions, 427 flow [2024-11-07 15:48:31,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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 15:48:31,412 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:31,412 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] [2024-11-07 15:48:31,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 15:48:31,412 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-07 15:48:31,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:31,413 INFO L85 PathProgramCache]: Analyzing trace with hash 714230158, now seen corresponding path program 1 times [2024-11-07 15:48:31,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:31,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649393429] [2024-11-07 15:48:31,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:31,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:31,440 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 15:48:31,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:31,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649393429] [2024-11-07 15:48:31,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649393429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:31,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:31,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:48:31,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202345526] [2024-11-07 15:48:31,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:31,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:48:31,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:31,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:48:31,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:48:31,462 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 203 [2024-11-07 15:48:31,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 198 transitions, 427 flow. Second operand has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 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 15:48:31,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:31,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 203 [2024-11-07 15:48:31,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:32,240 INFO L124 PetriNetUnfolderBase]: 1275/6749 cut-off events. [2024-11-07 15:48:32,240 INFO L125 PetriNetUnfolderBase]: For 527/527 co-relation queries the response was YES. [2024-11-07 15:48:32,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8947 conditions, 6749 events. 1275/6749 cut-off events. For 527/527 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 69228 event pairs, 437 based on Foata normal form. 0/6232 useless extension candidates. Maximal degree in co-relation 8905. Up to 1872 conditions per place. [2024-11-07 15:48:32,274 INFO L140 encePairwiseOnDemand]: 195/203 looper letters, 29 selfloop transitions, 4 changer transitions 0/206 dead transitions. [2024-11-07 15:48:32,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 206 transitions, 521 flow [2024-11-07 15:48:32,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:48:32,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:48:32,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 562 transitions. [2024-11-07 15:48:32,276 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.922824302134647 [2024-11-07 15:48:32,276 INFO L175 Difference]: Start difference. First operand has 205 places, 198 transitions, 427 flow. Second operand 3 states and 562 transitions. [2024-11-07 15:48:32,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 206 transitions, 521 flow [2024-11-07 15:48:32,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 206 transitions, 517 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:48:32,279 INFO L231 Difference]: Finished difference. Result has 201 places, 198 transitions, 443 flow [2024-11-07 15:48:32,279 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=443, PETRI_PLACES=201, PETRI_TRANSITIONS=198} [2024-11-07 15:48:32,280 INFO L277 CegarLoopForPetriNet]: 204 programPoint places, -3 predicate places. [2024-11-07 15:48:32,280 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 198 transitions, 443 flow [2024-11-07 15:48:32,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 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 15:48:32,280 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:32,280 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 15:48:32,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 15:48:32,280 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-07 15:48:32,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:32,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1005274949, now seen corresponding path program 1 times [2024-11-07 15:48:32,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:32,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605805158] [2024-11-07 15:48:32,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:32,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:32,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:32,465 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 15:48:32,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:32,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605805158] [2024-11-07 15:48:32,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605805158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:32,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:32,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:48:32,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609839199] [2024-11-07 15:48:32,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:32,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:48:32,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:32,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:48:32,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:48:32,643 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 203 [2024-11-07 15:48:32,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 198 transitions, 443 flow. Second operand has 6 states, 6 states have (on average 159.5) internal successors, (957), 6 states have internal predecessors, (957), 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 15:48:32,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:32,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 203 [2024-11-07 15:48:32,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:38,558 INFO L124 PetriNetUnfolderBase]: 24762/64711 cut-off events. [2024-11-07 15:48:38,558 INFO L125 PetriNetUnfolderBase]: For 2236/2236 co-relation queries the response was YES. [2024-11-07 15:48:38,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102379 conditions, 64711 events. 24762/64711 cut-off events. For 2236/2236 co-relation queries the response was YES. Maximal size of possible extension queue 1909. Compared 805141 event pairs, 14369 based on Foata normal form. 0/58481 useless extension candidates. Maximal degree in co-relation 62909. Up to 30792 conditions per place. [2024-11-07 15:48:38,873 INFO L140 encePairwiseOnDemand]: 184/203 looper letters, 67 selfloop transitions, 54 changer transitions 0/277 dead transitions. [2024-11-07 15:48:38,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 277 transitions, 855 flow [2024-11-07 15:48:38,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:48:38,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:48:38,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1070 transitions. [2024-11-07 15:48:38,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8784893267651889 [2024-11-07 15:48:38,875 INFO L175 Difference]: Start difference. First operand has 201 places, 198 transitions, 443 flow. Second operand 6 states and 1070 transitions. [2024-11-07 15:48:38,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 277 transitions, 855 flow [2024-11-07 15:48:38,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 277 transitions, 855 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:48:38,882 INFO L231 Difference]: Finished difference. Result has 211 places, 251 transitions, 801 flow [2024-11-07 15:48:38,882 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=801, PETRI_PLACES=211, PETRI_TRANSITIONS=251} [2024-11-07 15:48:38,882 INFO L277 CegarLoopForPetriNet]: 204 programPoint places, 7 predicate places. [2024-11-07 15:48:38,883 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 251 transitions, 801 flow [2024-11-07 15:48:38,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 159.5) internal successors, (957), 6 states have internal predecessors, (957), 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 15:48:38,883 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:38,883 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 15:48:38,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 15:48:38,883 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-07 15:48:38,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:38,884 INFO L85 PathProgramCache]: Analyzing trace with hash -766545668, now seen corresponding path program 1 times [2024-11-07 15:48:38,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:38,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672937736] [2024-11-07 15:48:38,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:38,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:38,937 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 15:48:38,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:38,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672937736] [2024-11-07 15:48:38,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672937736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:38,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:38,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:48:38,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146174696] [2024-11-07 15:48:38,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:38,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 15:48:38,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:38,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 15:48:38,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 15:48:39,030 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 203 [2024-11-07 15:48:39,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 251 transitions, 801 flow. Second operand has 5 states, 5 states have (on average 178.4) internal successors, (892), 5 states have internal predecessors, (892), 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 15:48:39,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:39,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 203 [2024-11-07 15:48:39,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:42,513 INFO L124 PetriNetUnfolderBase]: 10026/35624 cut-off events. [2024-11-07 15:48:42,514 INFO L125 PetriNetUnfolderBase]: For 4962/6490 co-relation queries the response was YES. [2024-11-07 15:48:42,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59446 conditions, 35624 events. 10026/35624 cut-off events. For 4962/6490 co-relation queries the response was YES. Maximal size of possible extension queue 824. Compared 439527 event pairs, 5453 based on Foata normal form. 1/32402 useless extension candidates. Maximal degree in co-relation 28968. Up to 12805 conditions per place. [2024-11-07 15:48:42,686 INFO L140 encePairwiseOnDemand]: 195/203 looper letters, 24 selfloop transitions, 2 changer transitions 5/259 dead transitions. [2024-11-07 15:48:42,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 259 transitions, 879 flow [2024-11-07 15:48:42,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:48:42,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:48:42,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1094 transitions. [2024-11-07 15:48:42,688 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8981937602627258 [2024-11-07 15:48:42,688 INFO L175 Difference]: Start difference. First operand has 211 places, 251 transitions, 801 flow. Second operand 6 states and 1094 transitions. [2024-11-07 15:48:42,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 259 transitions, 879 flow [2024-11-07 15:48:42,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 259 transitions, 879 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:48:42,711 INFO L231 Difference]: Finished difference. Result has 220 places, 252 transitions, 823 flow [2024-11-07 15:48:42,712 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=801, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=823, PETRI_PLACES=220, PETRI_TRANSITIONS=252} [2024-11-07 15:48:42,712 INFO L277 CegarLoopForPetriNet]: 204 programPoint places, 16 predicate places. [2024-11-07 15:48:42,712 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 252 transitions, 823 flow [2024-11-07 15:48:42,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 178.4) internal successors, (892), 5 states have internal predecessors, (892), 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 15:48:42,712 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:42,713 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:48:42,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 15:48:42,713 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-07 15:48:42,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:42,713 INFO L85 PathProgramCache]: Analyzing trace with hash -811327886, now seen corresponding path program 1 times [2024-11-07 15:48:42,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:42,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765389241] [2024-11-07 15:48:42,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:42,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:42,737 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 15:48:42,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:42,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765389241] [2024-11-07 15:48:42,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765389241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:42,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:42,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:48:42,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138734378] [2024-11-07 15:48:42,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:42,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:48:42,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:42,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:48:42,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:48:42,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 203 [2024-11-07 15:48:42,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 252 transitions, 823 flow. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 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 15:48:42,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:42,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 203 [2024-11-07 15:48:42,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:48:50,339 INFO L124 PetriNetUnfolderBase]: 21181/70234 cut-off events. [2024-11-07 15:48:50,339 INFO L125 PetriNetUnfolderBase]: For 17920/24465 co-relation queries the response was YES. [2024-11-07 15:48:50,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129758 conditions, 70234 events. 21181/70234 cut-off events. For 17920/24465 co-relation queries the response was YES. Maximal size of possible extension queue 2426. Compared 992510 event pairs, 6604 based on Foata normal form. 14/64072 useless extension candidates. Maximal degree in co-relation 129658. Up to 23127 conditions per place. [2024-11-07 15:48:51,204 INFO L140 encePairwiseOnDemand]: 182/203 looper letters, 44 selfloop transitions, 15 changer transitions 0/278 dead transitions. [2024-11-07 15:48:51,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 278 transitions, 1014 flow [2024-11-07 15:48:51,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:48:51,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:48:51,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 566 transitions. [2024-11-07 15:48:51,205 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9293924466338259 [2024-11-07 15:48:51,205 INFO L175 Difference]: Start difference. First operand has 220 places, 252 transitions, 823 flow. Second operand 3 states and 566 transitions. [2024-11-07 15:48:51,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 278 transitions, 1014 flow [2024-11-07 15:48:51,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 278 transitions, 1002 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-07 15:48:51,743 INFO L231 Difference]: Finished difference. Result has 217 places, 267 transitions, 943 flow [2024-11-07 15:48:51,743 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=811, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=943, PETRI_PLACES=217, PETRI_TRANSITIONS=267} [2024-11-07 15:48:51,743 INFO L277 CegarLoopForPetriNet]: 204 programPoint places, 13 predicate places. [2024-11-07 15:48:51,743 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 267 transitions, 943 flow [2024-11-07 15:48:51,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 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 15:48:51,744 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:48:51,744 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] [2024-11-07 15:48:51,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 15:48:51,744 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-07 15:48:51,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:48:51,744 INFO L85 PathProgramCache]: Analyzing trace with hash -993790377, now seen corresponding path program 1 times [2024-11-07 15:48:51,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:48:51,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469204427] [2024-11-07 15:48:51,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:48:51,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:48:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:48:51,771 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 15:48:51,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:48:51,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469204427] [2024-11-07 15:48:51,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469204427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:48:51,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:48:51,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:48:51,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548117638] [2024-11-07 15:48:51,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:48:51,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:48:51,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:48:51,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:48:51,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:48:51,811 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 203 [2024-11-07 15:48:51,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 267 transitions, 943 flow. Second operand has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 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 15:48:51,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:48:51,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 203 [2024-11-07 15:48:51,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:49:01,997 INFO L124 PetriNetUnfolderBase]: 25333/87284 cut-off events. [2024-11-07 15:49:01,998 INFO L125 PetriNetUnfolderBase]: For 25930/33919 co-relation queries the response was YES. [2024-11-07 15:49:02,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163665 conditions, 87284 events. 25333/87284 cut-off events. For 25930/33919 co-relation queries the response was YES. Maximal size of possible extension queue 2980. Compared 1292922 event pairs, 7700 based on Foata normal form. 169/80190 useless extension candidates. Maximal degree in co-relation 133037. Up to 28165 conditions per place. [2024-11-07 15:49:03,033 INFO L140 encePairwiseOnDemand]: 193/203 looper letters, 40 selfloop transitions, 16 changer transitions 0/289 dead transitions. [2024-11-07 15:49:03,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 289 transitions, 1153 flow [2024-11-07 15:49:03,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:49:03,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:49:03,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 567 transitions. [2024-11-07 15:49:03,035 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9310344827586207 [2024-11-07 15:49:03,035 INFO L175 Difference]: Start difference. First operand has 217 places, 267 transitions, 943 flow. Second operand 3 states and 567 transitions. [2024-11-07 15:49:03,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 289 transitions, 1153 flow [2024-11-07 15:49:03,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 289 transitions, 1111 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:49:03,998 INFO L231 Difference]: Finished difference. Result has 219 places, 281 transitions, 1059 flow [2024-11-07 15:49:03,998 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1059, PETRI_PLACES=219, PETRI_TRANSITIONS=281} [2024-11-07 15:49:03,998 INFO L277 CegarLoopForPetriNet]: 204 programPoint places, 15 predicate places. [2024-11-07 15:49:03,998 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 281 transitions, 1059 flow [2024-11-07 15:49:03,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 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 15:49:03,999 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:49:03,999 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:49:03,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-07 15:49:03,999 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-07 15:49:04,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:49:04,000 INFO L85 PathProgramCache]: Analyzing trace with hash 315614035, now seen corresponding path program 1 times [2024-11-07 15:49:04,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:49:04,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246713748] [2024-11-07 15:49:04,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:49:04,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:49:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:49:04,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 15:49:04,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:49:04,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246713748] [2024-11-07 15:49:04,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246713748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:49:04,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:49:04,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:49:04,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423123249] [2024-11-07 15:49:04,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:49:04,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:49:04,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:49:04,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:49:04,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:49:04,435 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 203 [2024-11-07 15:49:04,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 281 transitions, 1059 flow. Second operand has 6 states, 6 states have (on average 162.16666666666666) internal successors, (973), 6 states have internal predecessors, (973), 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 15:49:04,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:49:04,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 203 [2024-11-07 15:49:04,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand