./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.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-ext/48_ticket_lock_low_contention_vs-b.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', 'bee6bfabfc9168d01d046a770b423c49a0035ad8b39e289385170f3b76ba2fb2'] 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-ext/48_ticket_lock_low_contention_vs-b.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 bee6bfabfc9168d01d046a770b423c49a0035ad8b39e289385170f3b76ba2fb2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 15:19:58,233 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 15:19:58,314 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-07 15:19:58,320 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 15:19:58,320 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 15:19:58,339 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 15:19:58,339 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 15:19:58,339 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 15:19:58,340 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 15:19:58,340 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 15:19:58,340 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 15:19:58,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 15:19:58,340 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 15:19:58,341 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 15:19:58,341 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 15:19:58,341 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 15:19:58,341 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 15:19:58,341 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 15:19:58,341 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 15:19:58,341 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 15:19:58,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 15:19:58,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 15:19:58,342 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-07 15:19:58,342 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 15:19:58,342 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 15:19:58,342 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 15:19:58,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 15:19:58,342 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 15:19:58,342 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 15:19:58,342 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 15:19:58,343 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 15:19:58,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:19:58,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 15:19:58,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 15:19:58,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 15:19:58,343 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 15:19:58,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 15:19:58,343 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 15:19:58,344 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 15:19:58,344 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 15:19:58,344 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 15:19:58,344 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 -> bee6bfabfc9168d01d046a770b423c49a0035ad8b39e289385170f3b76ba2fb2 [2024-11-07 15:19:58,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 15:19:58,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 15:19:58,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 15:19:58,628 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 15:19:58,628 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 15:19:58,629 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i [2024-11-07 15:19:59,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 15:20:00,201 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 15:20:00,202 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i [2024-11-07 15:20:00,214 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1c1e3a7b5/988f49002a5c4a0898eec0fcfcb7c75a/FLAG611ec8667 [2024-11-07 15:20:00,233 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1c1e3a7b5/988f49002a5c4a0898eec0fcfcb7c75a [2024-11-07 15:20:00,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 15:20:00,237 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 15:20:00,239 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 15:20:00,240 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 15:20:00,247 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 15:20:00,247 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:20:00" (1/1) ... [2024-11-07 15:20:00,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a4cbbfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:20:00, skipping insertion in model container [2024-11-07 15:20:00,248 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:20:00" (1/1) ... [2024-11-07 15:20:00,273 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 15:20:00,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:20:00,551 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 15:20:00,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:20:00,628 INFO L204 MainTranslator]: Completed translation [2024-11-07 15:20:00,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:20:00 WrapperNode [2024-11-07 15:20:00,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 15:20:00,632 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 15:20:00,632 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 15:20:00,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 15:20:00,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:20:00" (1/1) ... [2024-11-07 15:20:00,656 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:20:00" (1/1) ... [2024-11-07 15:20:00,689 INFO L138 Inliner]: procedures = 169, calls = 16, calls flagged for inlining = 6, calls inlined = 9, statements flattened = 178 [2024-11-07 15:20:00,690 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 15:20:00,690 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 15:20:00,691 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 15:20:00,691 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 15:20:00,698 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:20:00" (1/1) ... [2024-11-07 15:20:00,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:20:00" (1/1) ... [2024-11-07 15:20:00,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:20:00" (1/1) ... [2024-11-07 15:20:00,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:20:00" (1/1) ... [2024-11-07 15:20:00,723 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:20:00" (1/1) ... [2024-11-07 15:20:00,730 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:20:00" (1/1) ... [2024-11-07 15:20:00,732 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:20:00" (1/1) ... [2024-11-07 15:20:00,736 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:20:00" (1/1) ... [2024-11-07 15:20:00,742 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 15:20:00,742 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 15:20:00,742 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 15:20:00,743 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 15:20:00,743 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:20:00" (1/1) ... [2024-11-07 15:20:00,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:20:00,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:20:00,783 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 15:20:00,787 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 15:20:00,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-07 15:20:00,809 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-07 15:20:00,809 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-07 15:20:00,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-07 15:20:00,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 15:20:00,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 15:20:00,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 15:20:00,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-07 15:20:00,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 15:20:00,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 15:20:00,811 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 15:20:00,956 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 15:20:00,957 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 15:20:01,285 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 15:20:01,285 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 15:20:01,485 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 15:20:01,485 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-07 15:20:01,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:20:01 BoogieIcfgContainer [2024-11-07 15:20:01,486 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 15:20:01,488 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 15:20:01,488 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 15:20:01,496 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 15:20:01,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:20:00" (1/3) ... [2024-11-07 15:20:01,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37bfae2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:20:01, skipping insertion in model container [2024-11-07 15:20:01,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:20:00" (2/3) ... [2024-11-07 15:20:01,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37bfae2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:20:01, skipping insertion in model container [2024-11-07 15:20:01,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:20:01" (3/3) ... [2024-11-07 15:20:01,499 INFO L112 eAbstractionObserver]: Analyzing ICFG 48_ticket_lock_low_contention_vs-b.i [2024-11-07 15:20:01,513 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 15:20:01,513 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-07 15:20:01,514 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 15:20:01,579 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 15:20:01,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 156 transitions, 316 flow [2024-11-07 15:20:01,700 INFO L124 PetriNetUnfolderBase]: 14/237 cut-off events. [2024-11-07 15:20:01,704 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:20:01,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 237 events. 14/237 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 805 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 142. Up to 4 conditions per place. [2024-11-07 15:20:01,716 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 156 transitions, 316 flow [2024-11-07 15:20:01,722 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 156 transitions, 316 flow [2024-11-07 15:20:01,728 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:20:01,738 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;@79a1ce78, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:20:01,738 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-11-07 15:20:01,749 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:20:01,749 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2024-11-07 15:20:01,749 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:20:01,749 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:20:01,750 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:20:01,753 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-07 15:20:01,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:20:01,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1265999894, now seen corresponding path program 1 times [2024-11-07 15:20:01,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:20:01,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380326562] [2024-11-07 15:20:01,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:20:01,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:20:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:20:01,899 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 15:20:01,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:20:01,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380326562] [2024-11-07 15:20:01,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380326562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:20:01,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:20:01,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:20:01,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109187519] [2024-11-07 15:20:01,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:20:01,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 15:20:01,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:20:01,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 15:20:01,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 15:20:01,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 156 [2024-11-07 15:20:01,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 156 transitions, 316 flow. Second operand has 2 states, 2 states have (on average 135.0) internal successors, (270), 2 states have internal predecessors, (270), 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 15:20:01,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:20:01,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 156 [2024-11-07 15:20:01,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:20:02,086 INFO L124 PetriNetUnfolderBase]: 5/255 cut-off events. [2024-11-07 15:20:02,086 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 15:20:02,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 255 events. 5/255 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 780 event pairs, 1 based on Foata normal form. 16/232 useless extension candidates. Maximal degree in co-relation 175. Up to 7 conditions per place. [2024-11-07 15:20:02,091 INFO L140 encePairwiseOnDemand]: 139/156 looper letters, 3 selfloop transitions, 0 changer transitions 0/135 dead transitions. [2024-11-07 15:20:02,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 135 transitions, 280 flow [2024-11-07 15:20:02,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 15:20:02,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-07 15:20:02,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 288 transitions. [2024-11-07 15:20:02,108 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9230769230769231 [2024-11-07 15:20:02,109 INFO L175 Difference]: Start difference. First operand has 150 places, 156 transitions, 316 flow. Second operand 2 states and 288 transitions. [2024-11-07 15:20:02,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 135 transitions, 280 flow [2024-11-07 15:20:02,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 135 transitions, 280 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:20:02,119 INFO L231 Difference]: Finished difference. Result has 137 places, 135 transitions, 274 flow [2024-11-07 15:20:02,121 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=274, PETRI_PLACES=137, PETRI_TRANSITIONS=135} [2024-11-07 15:20:02,125 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, -13 predicate places. [2024-11-07 15:20:02,125 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 135 transitions, 274 flow [2024-11-07 15:20:02,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 135.0) internal successors, (270), 2 states have internal predecessors, (270), 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 15:20:02,126 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:20:02,126 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:20:02,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 15:20:02,127 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-07 15:20:02,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:20:02,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1111083144, now seen corresponding path program 1 times [2024-11-07 15:20:02,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:20:02,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436025926] [2024-11-07 15:20:02,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:20:02,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:20:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:20:02,165 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 15:20:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:20:02,201 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 15:20:02,201 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 15:20:02,203 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2024-11-07 15:20:02,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2024-11-07 15:20:02,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2024-11-07 15:20:02,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2024-11-07 15:20:02,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2024-11-07 15:20:02,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2024-11-07 15:20:02,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2024-11-07 15:20:02,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2024-11-07 15:20:02,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2024-11-07 15:20:02,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2024-11-07 15:20:02,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2024-11-07 15:20:02,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2024-11-07 15:20:02,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2024-11-07 15:20:02,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2024-11-07 15:20:02,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2024-11-07 15:20:02,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2024-11-07 15:20:02,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2024-11-07 15:20:02,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2024-11-07 15:20:02,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2024-11-07 15:20:02,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2024-11-07 15:20:02,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2024-11-07 15:20:02,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2024-11-07 15:20:02,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2024-11-07 15:20:02,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2024-11-07 15:20:02,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2024-11-07 15:20:02,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2024-11-07 15:20:02,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2024-11-07 15:20:02,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2024-11-07 15:20:02,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2024-11-07 15:20:02,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2024-11-07 15:20:02,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2024-11-07 15:20:02,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2024-11-07 15:20:02,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2024-11-07 15:20:02,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2024-11-07 15:20:02,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2024-11-07 15:20:02,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2024-11-07 15:20:02,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2024-11-07 15:20:02,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 15:20:02,209 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-07 15:20:02,212 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 15:20:02,212 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-07 15:20:02,279 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 15:20:02,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 218 transitions, 446 flow [2024-11-07 15:20:02,364 INFO L124 PetriNetUnfolderBase]: 23/380 cut-off events. [2024-11-07 15:20:02,366 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 15:20:02,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 380 events. 23/380 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1695 event pairs, 0 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 238. Up to 6 conditions per place. [2024-11-07 15:20:02,374 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 218 transitions, 446 flow [2024-11-07 15:20:02,381 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 218 transitions, 446 flow [2024-11-07 15:20:02,383 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:20:02,384 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;@79a1ce78, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:20:02,385 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2024-11-07 15:20:02,389 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:20:02,389 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2024-11-07 15:20:02,389 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:20:02,390 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:20:02,390 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:20:02,390 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-07 15:20:02,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:20:02,391 INFO L85 PathProgramCache]: Analyzing trace with hash 872190896, now seen corresponding path program 1 times [2024-11-07 15:20:02,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:20:02,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224600224] [2024-11-07 15:20:02,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:20:02,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:20:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:20:02,430 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 15:20:02,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:20:02,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224600224] [2024-11-07 15:20:02,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224600224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:20:02,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:20:02,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:20:02,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583958274] [2024-11-07 15:20:02,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:20:02,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 15:20:02,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:20:02,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 15:20:02,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 15:20:02,434 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 218 [2024-11-07 15:20:02,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 218 transitions, 446 flow. Second operand has 2 states, 2 states have (on average 186.0) internal successors, (372), 2 states have internal predecessors, (372), 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 15:20:02,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:20:02,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 218 [2024-11-07 15:20:02,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:20:02,557 INFO L124 PetriNetUnfolderBase]: 18/628 cut-off events. [2024-11-07 15:20:02,559 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-07 15:20:02,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 660 conditions, 628 events. 18/628 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3571 event pairs, 7 based on Foata normal form. 46/567 useless extension candidates. Maximal degree in co-relation 385. Up to 21 conditions per place. [2024-11-07 15:20:02,569 INFO L140 encePairwiseOnDemand]: 193/218 looper letters, 5 selfloop transitions, 0 changer transitions 0/187 dead transitions. [2024-11-07 15:20:02,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 187 transitions, 394 flow [2024-11-07 15:20:02,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 15:20:02,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-07 15:20:02,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 400 transitions. [2024-11-07 15:20:02,575 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9174311926605505 [2024-11-07 15:20:02,575 INFO L175 Difference]: Start difference. First operand has 210 places, 218 transitions, 446 flow. Second operand 2 states and 400 transitions. [2024-11-07 15:20:02,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 187 transitions, 394 flow [2024-11-07 15:20:02,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 187 transitions, 394 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:20:02,580 INFO L231 Difference]: Finished difference. Result has 190 places, 187 transitions, 384 flow [2024-11-07 15:20:02,581 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=384, PETRI_PLACES=190, PETRI_TRANSITIONS=187} [2024-11-07 15:20:02,581 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -20 predicate places. [2024-11-07 15:20:02,582 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 187 transitions, 384 flow [2024-11-07 15:20:02,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 186.0) internal successors, (372), 2 states have internal predecessors, (372), 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 15:20:02,582 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:20:02,583 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:20:02,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 15:20:02,583 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-07 15:20:02,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:20:02,584 INFO L85 PathProgramCache]: Analyzing trace with hash 335312196, now seen corresponding path program 1 times [2024-11-07 15:20:02,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:20:02,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045116549] [2024-11-07 15:20:02,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:20:02,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:20:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:20:03,182 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 15:20:03,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:20:03,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045116549] [2024-11-07 15:20:03,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045116549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:20:03,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:20:03,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:20:03,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860174480] [2024-11-07 15:20:03,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:20:03,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:20:03,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:20:03,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:20:03,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:20:03,381 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 218 [2024-11-07 15:20:03,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 187 transitions, 384 flow. Second operand has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 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 15:20:03,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:20:03,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 218 [2024-11-07 15:20:03,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:20:03,921 INFO L124 PetriNetUnfolderBase]: 134/2680 cut-off events. [2024-11-07 15:20:03,922 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-07 15:20:03,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2904 conditions, 2680 events. 134/2680 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 24274 event pairs, 33 based on Foata normal form. 0/2214 useless extension candidates. Maximal degree in co-relation 2899. Up to 141 conditions per place. [2024-11-07 15:20:03,950 INFO L140 encePairwiseOnDemand]: 209/218 looper letters, 18 selfloop transitions, 14 changer transitions 0/204 dead transitions. [2024-11-07 15:20:03,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 204 transitions, 482 flow [2024-11-07 15:20:03,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:20:03,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:20:03,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1083 transitions. [2024-11-07 15:20:03,955 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8279816513761468 [2024-11-07 15:20:03,956 INFO L175 Difference]: Start difference. First operand has 190 places, 187 transitions, 384 flow. Second operand 6 states and 1083 transitions. [2024-11-07 15:20:03,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 204 transitions, 482 flow [2024-11-07 15:20:03,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 204 transitions, 482 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:20:03,965 INFO L231 Difference]: Finished difference. Result has 200 places, 201 transitions, 486 flow [2024-11-07 15:20:03,965 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=486, PETRI_PLACES=200, PETRI_TRANSITIONS=201} [2024-11-07 15:20:03,966 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -10 predicate places. [2024-11-07 15:20:03,967 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 201 transitions, 486 flow [2024-11-07 15:20:03,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 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 15:20:03,968 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:20:03,968 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] [2024-11-07 15:20:03,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 15:20:03,969 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-07 15:20:03,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:20:03,969 INFO L85 PathProgramCache]: Analyzing trace with hash -94538543, now seen corresponding path program 1 times [2024-11-07 15:20:03,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:20:03,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903554109] [2024-11-07 15:20:03,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:20:03,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:20:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:20:04,341 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 15:20:04,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:20:04,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903554109] [2024-11-07 15:20:04,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903554109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:20:04,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:20:04,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:20:04,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405184677] [2024-11-07 15:20:04,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:20:04,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:20:04,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:20:04,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:20:04,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:20:04,509 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 218 [2024-11-07 15:20:04,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 201 transitions, 486 flow. Second operand has 6 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 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 15:20:04,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:20:04,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 218 [2024-11-07 15:20:04,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:20:05,310 INFO L124 PetriNetUnfolderBase]: 424/5479 cut-off events. [2024-11-07 15:20:05,310 INFO L125 PetriNetUnfolderBase]: For 551/587 co-relation queries the response was YES. [2024-11-07 15:20:05,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6940 conditions, 5479 events. 424/5479 cut-off events. For 551/587 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 59225 event pairs, 36 based on Foata normal form. 0/4584 useless extension candidates. Maximal degree in co-relation 6930. Up to 366 conditions per place. [2024-11-07 15:20:05,368 INFO L140 encePairwiseOnDemand]: 209/218 looper letters, 28 selfloop transitions, 30 changer transitions 0/238 dead transitions. [2024-11-07 15:20:05,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 238 transitions, 768 flow [2024-11-07 15:20:05,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:20:05,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:20:05,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1097 transitions. [2024-11-07 15:20:05,375 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8386850152905199 [2024-11-07 15:20:05,375 INFO L175 Difference]: Start difference. First operand has 200 places, 201 transitions, 486 flow. Second operand 6 states and 1097 transitions. [2024-11-07 15:20:05,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 238 transitions, 768 flow [2024-11-07 15:20:05,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 238 transitions, 768 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:20:05,389 INFO L231 Difference]: Finished difference. Result has 210 places, 231 transitions, 764 flow [2024-11-07 15:20:05,389 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=764, PETRI_PLACES=210, PETRI_TRANSITIONS=231} [2024-11-07 15:20:05,390 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, 0 predicate places. [2024-11-07 15:20:05,391 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 231 transitions, 764 flow [2024-11-07 15:20:05,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 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 15:20:05,395 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:20:05,395 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:20:05,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 15:20:05,395 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-07 15:20:05,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:20:05,395 INFO L85 PathProgramCache]: Analyzing trace with hash 112493558, now seen corresponding path program 1 times [2024-11-07 15:20:05,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:20:05,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835953449] [2024-11-07 15:20:05,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:20:05,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:20:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:20:05,436 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 15:20:05,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:20:05,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835953449] [2024-11-07 15:20:05,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835953449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:20:05,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:20:05,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:20:05,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996638371] [2024-11-07 15:20:05,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:20:05,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:20:05,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:20:05,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:20:05,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:20:05,480 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 218 [2024-11-07 15:20:05,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 231 transitions, 764 flow. Second operand has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 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 15:20:05,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:20:05,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 218 [2024-11-07 15:20:05,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:20:09,185 INFO L124 PetriNetUnfolderBase]: 4605/30419 cut-off events. [2024-11-07 15:20:09,186 INFO L125 PetriNetUnfolderBase]: For 5521/5680 co-relation queries the response was YES. [2024-11-07 15:20:09,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43255 conditions, 30419 events. 4605/30419 cut-off events. For 5521/5680 co-relation queries the response was YES. Maximal size of possible extension queue 752. Compared 434511 event pairs, 1493 based on Foata normal form. 3/26051 useless extension candidates. Maximal degree in co-relation 43240. Up to 5422 conditions per place. [2024-11-07 15:20:09,396 INFO L140 encePairwiseOnDemand]: 197/218 looper letters, 94 selfloop transitions, 15 changer transitions 0/282 dead transitions. [2024-11-07 15:20:09,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 282 transitions, 1305 flow [2024-11-07 15:20:09,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:20:09,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:20:09,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 543 transitions. [2024-11-07 15:20:09,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8302752293577982 [2024-11-07 15:20:09,399 INFO L175 Difference]: Start difference. First operand has 210 places, 231 transitions, 764 flow. Second operand 3 states and 543 transitions. [2024-11-07 15:20:09,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 282 transitions, 1305 flow [2024-11-07 15:20:09,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 282 transitions, 1305 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:20:09,420 INFO L231 Difference]: Finished difference. Result has 214 places, 246 transitions, 896 flow [2024-11-07 15:20:09,420 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=896, PETRI_PLACES=214, PETRI_TRANSITIONS=246} [2024-11-07 15:20:09,421 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, 4 predicate places. [2024-11-07 15:20:09,421 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 246 transitions, 896 flow [2024-11-07 15:20:09,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 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 15:20:09,421 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:20:09,422 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:20:09,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 15:20:09,422 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-07 15:20:09,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:20:09,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1541511447, now seen corresponding path program 1 times [2024-11-07 15:20:09,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:20:09,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153609169] [2024-11-07 15:20:09,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:20:09,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:20:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:20:09,434 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 15:20:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:20:09,447 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 15:20:09,448 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 15:20:09,448 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2024-11-07 15:20:09,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2024-11-07 15:20:09,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2024-11-07 15:20:09,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2024-11-07 15:20:09,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2024-11-07 15:20:09,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2024-11-07 15:20:09,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2024-11-07 15:20:09,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2024-11-07 15:20:09,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2024-11-07 15:20:09,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2024-11-07 15:20:09,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2024-11-07 15:20:09,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2024-11-07 15:20:09,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2024-11-07 15:20:09,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2024-11-07 15:20:09,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2024-11-07 15:20:09,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2024-11-07 15:20:09,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2024-11-07 15:20:09,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2024-11-07 15:20:09,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2024-11-07 15:20:09,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2024-11-07 15:20:09,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2024-11-07 15:20:09,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2024-11-07 15:20:09,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2024-11-07 15:20:09,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2024-11-07 15:20:09,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2024-11-07 15:20:09,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2024-11-07 15:20:09,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2024-11-07 15:20:09,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2024-11-07 15:20:09,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2024-11-07 15:20:09,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 15:20:09,453 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-07 15:20:09,453 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 15:20:09,453 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-07 15:20:09,514 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 15:20:09,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 270 places, 280 transitions, 578 flow [2024-11-07 15:20:09,566 INFO L124 PetriNetUnfolderBase]: 32/523 cut-off events. [2024-11-07 15:20:09,566 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-07 15:20:09,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 536 conditions, 523 events. 32/523 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2683 event pairs, 0 based on Foata normal form. 0/403 useless extension candidates. Maximal degree in co-relation 384. Up to 8 conditions per place. [2024-11-07 15:20:09,573 INFO L82 GeneralOperation]: Start removeDead. Operand has 270 places, 280 transitions, 578 flow [2024-11-07 15:20:09,581 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 280 transitions, 578 flow [2024-11-07 15:20:09,583 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:20:09,584 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;@79a1ce78, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:20:09,584 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-11-07 15:20:09,585 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:20:09,585 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2024-11-07 15:20:09,585 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:20:09,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:20:09,586 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:20:09,586 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-07 15:20:09,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:20:09,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1351465416, now seen corresponding path program 1 times [2024-11-07 15:20:09,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:20:09,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470105365] [2024-11-07 15:20:09,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:20:09,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:20:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:20:09,604 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 15:20:09,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:20:09,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470105365] [2024-11-07 15:20:09,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470105365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:20:09,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:20:09,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:20:09,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596204908] [2024-11-07 15:20:09,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:20:09,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 15:20:09,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:20:09,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 15:20:09,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 15:20:09,608 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 280 [2024-11-07 15:20:09,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 280 transitions, 578 flow. Second operand has 2 states, 2 states have (on average 237.0) internal successors, (474), 2 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:20:09,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:20:09,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 280 [2024-11-07 15:20:09,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:20:09,773 INFO L124 PetriNetUnfolderBase]: 53/1407 cut-off events. [2024-11-07 15:20:09,774 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-07 15:20:09,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1492 conditions, 1407 events. 53/1407 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 11149 event pairs, 27 based on Foata normal form. 116/1271 useless extension candidates. Maximal degree in co-relation 811. Up to 57 conditions per place. [2024-11-07 15:20:09,794 INFO L140 encePairwiseOnDemand]: 247/280 looper letters, 7 selfloop transitions, 0 changer transitions 0/239 dead transitions. [2024-11-07 15:20:09,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 239 transitions, 510 flow [2024-11-07 15:20:09,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 15:20:09,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-07 15:20:09,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 512 transitions. [2024-11-07 15:20:09,796 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9142857142857143 [2024-11-07 15:20:09,796 INFO L175 Difference]: Start difference. First operand has 270 places, 280 transitions, 578 flow. Second operand 2 states and 512 transitions. [2024-11-07 15:20:09,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 239 transitions, 510 flow [2024-11-07 15:20:09,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 239 transitions, 508 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-07 15:20:09,801 INFO L231 Difference]: Finished difference. Result has 243 places, 239 transitions, 494 flow [2024-11-07 15:20:09,801 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=494, PETRI_PLACES=243, PETRI_TRANSITIONS=239} [2024-11-07 15:20:09,803 INFO L277 CegarLoopForPetriNet]: 270 programPoint places, -27 predicate places. [2024-11-07 15:20:09,804 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 239 transitions, 494 flow [2024-11-07 15:20:09,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 237.0) internal successors, (474), 2 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:20:09,804 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:20:09,804 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:20:09,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 15:20:09,805 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-07 15:20:09,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:20:09,805 INFO L85 PathProgramCache]: Analyzing trace with hash -354017468, now seen corresponding path program 1 times [2024-11-07 15:20:09,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:20:09,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786528776] [2024-11-07 15:20:09,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:20:09,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:20:09,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:20:10,037 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 15:20:10,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:20:10,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786528776] [2024-11-07 15:20:10,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786528776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:20:10,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:20:10,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:20:10,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738587716] [2024-11-07 15:20:10,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:20:10,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:20:10,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:20:10,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:20:10,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:20:10,304 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 280 [2024-11-07 15:20:10,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 239 transitions, 494 flow. Second operand has 6 states, 6 states have (on average 227.33333333333334) internal successors, (1364), 6 states have internal predecessors, (1364), 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 15:20:10,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:20:10,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 280 [2024-11-07 15:20:10,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:20:11,109 INFO L124 PetriNetUnfolderBase]: 444/7105 cut-off events. [2024-11-07 15:20:11,110 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-07 15:20:11,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7729 conditions, 7105 events. 444/7105 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 81815 event pairs, 131 based on Foata normal form. 0/5860 useless extension candidates. Maximal degree in co-relation 7723. Up to 442 conditions per place. [2024-11-07 15:20:11,164 INFO L140 encePairwiseOnDemand]: 270/280 looper letters, 20 selfloop transitions, 18 changer transitions 0/260 dead transitions. [2024-11-07 15:20:11,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 260 transitions, 612 flow [2024-11-07 15:20:11,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:20:11,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:20:11,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1395 transitions. [2024-11-07 15:20:11,168 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8303571428571429 [2024-11-07 15:20:11,168 INFO L175 Difference]: Start difference. First operand has 243 places, 239 transitions, 494 flow. Second operand 6 states and 1395 transitions. [2024-11-07 15:20:11,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 260 transitions, 612 flow [2024-11-07 15:20:11,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 260 transitions, 612 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:20:11,173 INFO L231 Difference]: Finished difference. Result has 253 places, 257 transitions, 622 flow [2024-11-07 15:20:11,173 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=622, PETRI_PLACES=253, PETRI_TRANSITIONS=257} [2024-11-07 15:20:11,174 INFO L277 CegarLoopForPetriNet]: 270 programPoint places, -17 predicate places. [2024-11-07 15:20:11,174 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 257 transitions, 622 flow [2024-11-07 15:20:11,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 227.33333333333334) internal successors, (1364), 6 states have internal predecessors, (1364), 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 15:20:11,175 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:20:11,175 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] [2024-11-07 15:20:11,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 15:20:11,176 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-07 15:20:11,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:20:11,176 INFO L85 PathProgramCache]: Analyzing trace with hash 908656716, now seen corresponding path program 1 times [2024-11-07 15:20:11,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:20:11,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482383243] [2024-11-07 15:20:11,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:20:11,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:20:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:20:11,402 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 15:20:11,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:20:11,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482383243] [2024-11-07 15:20:11,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482383243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:20:11,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:20:11,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:20:11,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230958315] [2024-11-07 15:20:11,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:20:11,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:20:11,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:20:11,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:20:11,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:20:11,574 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 280 [2024-11-07 15:20:11,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 257 transitions, 622 flow. Second operand has 6 states, 6 states have (on average 229.33333333333334) internal successors, (1376), 6 states have internal predecessors, (1376), 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 15:20:11,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:20:11,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 280 [2024-11-07 15:20:11,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:20:13,785 INFO L124 PetriNetUnfolderBase]: 1843/18400 cut-off events. [2024-11-07 15:20:13,785 INFO L125 PetriNetUnfolderBase]: For 2485/2593 co-relation queries the response was YES. [2024-11-07 15:20:13,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23689 conditions, 18400 events. 1843/18400 cut-off events. For 2485/2593 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 249960 event pairs, 169 based on Foata normal form. 0/15321 useless extension candidates. Maximal degree in co-relation 23678. Up to 1595 conditions per place. [2024-11-07 15:20:14,242 INFO L140 encePairwiseOnDemand]: 270/280 looper letters, 38 selfloop transitions, 50 changer transitions 0/318 dead transitions. [2024-11-07 15:20:14,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 318 transitions, 1104 flow [2024-11-07 15:20:14,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:20:14,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:20:14,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1413 transitions. [2024-11-07 15:20:14,246 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8410714285714286 [2024-11-07 15:20:14,246 INFO L175 Difference]: Start difference. First operand has 253 places, 257 transitions, 622 flow. Second operand 6 states and 1413 transitions. [2024-11-07 15:20:14,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 318 transitions, 1104 flow [2024-11-07 15:20:14,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 318 transitions, 1104 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:20:14,255 INFO L231 Difference]: Finished difference. Result has 263 places, 307 transitions, 1102 flow [2024-11-07 15:20:14,256 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1102, PETRI_PLACES=263, PETRI_TRANSITIONS=307} [2024-11-07 15:20:14,256 INFO L277 CegarLoopForPetriNet]: 270 programPoint places, -7 predicate places. [2024-11-07 15:20:14,256 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 307 transitions, 1102 flow [2024-11-07 15:20:14,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.33333333333334) internal successors, (1376), 6 states have internal predecessors, (1376), 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 15:20:14,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:20:14,258 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] [2024-11-07 15:20:14,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 15:20:14,258 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-07 15:20:14,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:20:14,258 INFO L85 PathProgramCache]: Analyzing trace with hash -908341002, now seen corresponding path program 1 times [2024-11-07 15:20:14,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:20:14,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906054970] [2024-11-07 15:20:14,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:20:14,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:20:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:20:14,286 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 15:20:14,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:20:14,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906054970] [2024-11-07 15:20:14,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906054970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:20:14,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:20:14,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:20:14,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048489786] [2024-11-07 15:20:14,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:20:14,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:20:14,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:20:14,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:20:14,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:20:14,328 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 280 [2024-11-07 15:20:14,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 307 transitions, 1102 flow. Second operand has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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 15:20:14,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:20:14,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 280 [2024-11-07 15:20:14,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:20:50,568 INFO L124 PetriNetUnfolderBase]: 74517/327694 cut-off events. [2024-11-07 15:20:50,568 INFO L125 PetriNetUnfolderBase]: For 101896/104822 co-relation queries the response was YES. [2024-11-07 15:20:53,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498667 conditions, 327694 events. 74517/327694 cut-off events. For 101896/104822 co-relation queries the response was YES. Maximal size of possible extension queue 6873. Compared 5978881 event pairs, 25975 based on Foata normal form. 17/276949 useless extension candidates. Maximal degree in co-relation 498651. Up to 75439 conditions per place. [2024-11-07 15:20:54,921 INFO L140 encePairwiseOnDemand]: 252/280 looper letters, 153 selfloop transitions, 20 changer transitions 0/389 dead transitions. [2024-11-07 15:20:54,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 389 transitions, 2018 flow [2024-11-07 15:20:54,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:20:54,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:20:54,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 693 transitions. [2024-11-07 15:20:54,923 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.825 [2024-11-07 15:20:54,923 INFO L175 Difference]: Start difference. First operand has 263 places, 307 transitions, 1102 flow. Second operand 3 states and 693 transitions. [2024-11-07 15:20:54,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 389 transitions, 2018 flow [2024-11-07 15:20:55,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 389 transitions, 2018 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:20:55,042 INFO L231 Difference]: Finished difference. Result has 267 places, 327 transitions, 1278 flow [2024-11-07 15:20:55,042 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1278, PETRI_PLACES=267, PETRI_TRANSITIONS=327} [2024-11-07 15:20:55,042 INFO L277 CegarLoopForPetriNet]: 270 programPoint places, -3 predicate places. [2024-11-07 15:20:55,043 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 327 transitions, 1278 flow [2024-11-07 15:20:55,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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 15:20:55,043 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:20:55,043 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] [2024-11-07 15:20:55,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 15:20:55,043 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-07 15:20:55,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:20:55,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1326647360, now seen corresponding path program 1 times [2024-11-07 15:20:55,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:20:55,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69682070] [2024-11-07 15:20:55,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:20:55,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:20:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:20:55,077 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 15:20:55,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:20:55,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69682070] [2024-11-07 15:20:55,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69682070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:20:55,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:20:55,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:20:55,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547336109] [2024-11-07 15:20:55,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:20:55,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:20:55,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:20:55,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:20:55,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:20:55,137 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 280 [2024-11-07 15:20:55,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 327 transitions, 1278 flow. Second operand has 3 states, 3 states have (on average 219.66666666666666) internal successors, (659), 3 states have internal predecessors, (659), 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 15:20:55,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:20:55,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 280 [2024-11-07 15:20:55,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand