./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_01-simple_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/goblint-regression/28-race_reach_01-simple_racing.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', 'eddb66a74cd149f880832378d52d5c02c94fd6efcf2d83aeade11bcdaaabe426'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_01-simple_racing.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 eddb66a74cd149f880832378d52d5c02c94fd6efcf2d83aeade11bcdaaabe426 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 15:38:12,770 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 15:38:12,926 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-07 15:38:12,932 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 15:38:12,939 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 15:38:12,981 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 15:38:12,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 15:38:12,987 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 15:38:12,987 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 15:38:12,987 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 15:38:12,987 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 15:38:12,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 15:38:12,987 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 15:38:12,987 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 15:38:12,987 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 15:38:12,988 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 15:38:12,988 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 15:38:12,988 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 15:38:12,988 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 15:38:12,988 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 15:38:12,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 15:38:12,988 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 15:38:12,988 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-07 15:38:12,988 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 15:38:12,990 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 15:38:12,990 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 15:38:12,990 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 15:38:12,990 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 15:38:12,990 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 15:38:12,990 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 15:38:12,990 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 15:38:12,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:38:12,994 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 15:38:12,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 15:38:12,994 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 15:38:12,994 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 15:38:12,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 15:38:12,994 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 15:38:12,995 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 15:38:12,995 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 15:38:12,995 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 15:38:12,995 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 -> eddb66a74cd149f880832378d52d5c02c94fd6efcf2d83aeade11bcdaaabe426 [2024-11-07 15:38:13,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 15:38:13,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 15:38:13,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 15:38:13,466 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 15:38:13,466 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 15:38:13,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_01-simple_racing.i [2024-11-07 15:38:15,402 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 15:38:15,816 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 15:38:15,818 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_01-simple_racing.i [2024-11-07 15:38:15,831 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/da3c66bc6/108d4a52fc7242cdb0cdad983f0f82d2/FLAG4409b4fb7 [2024-11-07 15:38:15,847 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/da3c66bc6/108d4a52fc7242cdb0cdad983f0f82d2 [2024-11-07 15:38:15,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 15:38:15,850 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 15:38:15,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 15:38:15,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 15:38:15,855 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 15:38:15,856 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:38:15" (1/1) ... [2024-11-07 15:38:15,856 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59750407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:15, skipping insertion in model container [2024-11-07 15:38:15,858 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:38:15" (1/1) ... [2024-11-07 15:38:15,883 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 15:38:16,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:38:16,186 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 15:38:16,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:38:16,353 INFO L204 MainTranslator]: Completed translation [2024-11-07 15:38:16,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:16 WrapperNode [2024-11-07 15:38:16,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 15:38:16,358 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 15:38:16,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 15:38:16,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 15:38:16,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:16" (1/1) ... [2024-11-07 15:38:16,391 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:16" (1/1) ... [2024-11-07 15:38:16,454 INFO L138 Inliner]: procedures = 171, calls = 42, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2024-11-07 15:38:16,455 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 15:38:16,455 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 15:38:16,455 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 15:38:16,456 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 15:38:16,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:16" (1/1) ... [2024-11-07 15:38:16,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:16" (1/1) ... [2024-11-07 15:38:16,472 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:16" (1/1) ... [2024-11-07 15:38:16,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:16" (1/1) ... [2024-11-07 15:38:16,507 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:16" (1/1) ... [2024-11-07 15:38:16,526 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:16" (1/1) ... [2024-11-07 15:38:16,527 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:16" (1/1) ... [2024-11-07 15:38:16,528 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:16" (1/1) ... [2024-11-07 15:38:16,530 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 15:38:16,530 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 15:38:16,530 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 15:38:16,530 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 15:38:16,539 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:16" (1/1) ... [2024-11-07 15:38:16,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:38:16,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:38:16,620 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 15:38:16,647 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 15:38:16,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-07 15:38:16,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-07 15:38:16,684 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 15:38:16,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 15:38:16,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 15:38:16,688 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-07 15:38:16,688 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-07 15:38:16,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 15:38:16,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-07 15:38:16,688 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 15:38:16,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 15:38:16,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 15:38:16,690 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 15:38:17,054 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 15:38:17,058 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 15:38:17,649 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 15:38:17,649 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 15:38:17,712 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 15:38:17,716 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-07 15:38:17,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:38:17 BoogieIcfgContainer [2024-11-07 15:38:17,717 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 15:38:17,719 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 15:38:17,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 15:38:17,730 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 15:38:17,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:38:15" (1/3) ... [2024-11-07 15:38:17,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24210f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:38:17, skipping insertion in model container [2024-11-07 15:38:17,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:16" (2/3) ... [2024-11-07 15:38:17,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24210f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:38:17, skipping insertion in model container [2024-11-07 15:38:17,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:38:17" (3/3) ... [2024-11-07 15:38:17,734 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_01-simple_racing.i [2024-11-07 15:38:17,767 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 15:38:17,771 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-07 15:38:17,771 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 15:38:17,916 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-07 15:38:17,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 147 transitions, 301 flow [2024-11-07 15:38:18,194 INFO L124 PetriNetUnfolderBase]: 19/206 cut-off events. [2024-11-07 15:38:18,200 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 15:38:18,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 206 events. 19/206 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 628 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 109. Up to 4 conditions per place. [2024-11-07 15:38:18,214 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 147 transitions, 301 flow [2024-11-07 15:38:18,225 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 147 transitions, 301 flow [2024-11-07 15:38:18,237 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:38:18,260 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;@6431d818, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:38:18,260 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-07 15:38:18,280 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:38:18,284 INFO L124 PetriNetUnfolderBase]: 2/53 cut-off events. [2024-11-07 15:38:18,284 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:38:18,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:18,285 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:38:18,286 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-07 15:38:18,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:18,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1629330204, now seen corresponding path program 1 times [2024-11-07 15:38:18,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:18,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431948391] [2024-11-07 15:38:18,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:18,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:38:18,808 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 15:38:18,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:38:18,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431948391] [2024-11-07 15:38:18,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431948391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:38:18,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:38:18,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:38:18,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277808603] [2024-11-07 15:38:18,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:38:18,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:38:18,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:38:18,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:38:18,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:38:18,990 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 147 [2024-11-07 15:38:18,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 147 transitions, 301 flow. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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 15:38:19,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:38:19,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 147 [2024-11-07 15:38:19,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:38:19,314 INFO L124 PetriNetUnfolderBase]: 48/531 cut-off events. [2024-11-07 15:38:19,327 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-07 15:38:19,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 652 conditions, 531 events. 48/531 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2501 event pairs, 35 based on Foata normal form. 62/538 useless extension candidates. Maximal degree in co-relation 575. Up to 108 conditions per place. [2024-11-07 15:38:19,342 INFO L140 encePairwiseOnDemand]: 132/147 looper letters, 22 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2024-11-07 15:38:19,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 139 transitions, 333 flow [2024-11-07 15:38:19,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:38:19,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:38:19,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2024-11-07 15:38:19,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-11-07 15:38:19,373 INFO L175 Difference]: Start difference. First operand has 137 places, 147 transitions, 301 flow. Second operand 3 states and 392 transitions. [2024-11-07 15:38:19,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 139 transitions, 333 flow [2024-11-07 15:38:19,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 139 transitions, 333 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:38:19,413 INFO L231 Difference]: Finished difference. Result has 138 places, 133 transitions, 281 flow [2024-11-07 15:38:19,418 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=281, PETRI_PLACES=138, PETRI_TRANSITIONS=133} [2024-11-07 15:38:19,426 INFO L277 CegarLoopForPetriNet]: 137 programPoint places, 1 predicate places. [2024-11-07 15:38:19,429 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 133 transitions, 281 flow [2024-11-07 15:38:19,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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 15:38:19,429 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:19,431 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:38:19,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 15:38:19,432 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-07 15:38:19,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:19,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1109750366, now seen corresponding path program 1 times [2024-11-07 15:38:19,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:19,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624403984] [2024-11-07 15:38:19,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:19,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:38:20,561 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 15:38:20,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:38:20,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624403984] [2024-11-07 15:38:20,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624403984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:38:20,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:38:20,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:38:20,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787520260] [2024-11-07 15:38:20,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:38:20,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:38:20,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:38:20,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:38:20,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:38:20,843 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 147 [2024-11-07 15:38:20,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 133 transitions, 281 flow. Second operand has 6 states, 6 states have (on average 105.5) internal successors, (633), 6 states have internal predecessors, (633), 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 15:38:20,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:38:20,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 147 [2024-11-07 15:38:20,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:38:21,215 INFO L124 PetriNetUnfolderBase]: 108/637 cut-off events. [2024-11-07 15:38:21,218 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-07 15:38:21,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 924 conditions, 637 events. 108/637 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3633 event pairs, 7 based on Foata normal form. 0/589 useless extension candidates. Maximal degree in co-relation 831. Up to 181 conditions per place. [2024-11-07 15:38:21,230 INFO L140 encePairwiseOnDemand]: 141/147 looper letters, 48 selfloop transitions, 5 changer transitions 0/156 dead transitions. [2024-11-07 15:38:21,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 156 transitions, 433 flow [2024-11-07 15:38:21,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:38:21,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:38:21,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 678 transitions. [2024-11-07 15:38:21,246 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7687074829931972 [2024-11-07 15:38:21,246 INFO L175 Difference]: Start difference. First operand has 138 places, 133 transitions, 281 flow. Second operand 6 states and 678 transitions. [2024-11-07 15:38:21,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 156 transitions, 433 flow [2024-11-07 15:38:21,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 156 transitions, 429 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:38:21,254 INFO L231 Difference]: Finished difference. Result has 140 places, 132 transitions, 285 flow [2024-11-07 15:38:21,254 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=285, PETRI_PLACES=140, PETRI_TRANSITIONS=132} [2024-11-07 15:38:21,255 INFO L277 CegarLoopForPetriNet]: 137 programPoint places, 3 predicate places. [2024-11-07 15:38:21,257 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 132 transitions, 285 flow [2024-11-07 15:38:21,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 105.5) internal successors, (633), 6 states have internal predecessors, (633), 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 15:38:21,258 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:21,258 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:38:21,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 15:38:21,258 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-07 15:38:21,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:21,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1567470371, now seen corresponding path program 1 times [2024-11-07 15:38:21,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:21,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852191306] [2024-11-07 15:38:21,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:21,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:38:21,394 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 15:38:21,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:38:21,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852191306] [2024-11-07 15:38:21,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852191306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:38:21,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:38:21,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:38:21,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063710668] [2024-11-07 15:38:21,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:38:21,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:38:21,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:38:21,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:38:21,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:38:21,433 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 147 [2024-11-07 15:38:21,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 132 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 15:38:21,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:38:21,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 147 [2024-11-07 15:38:21,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:38:21,712 INFO L124 PetriNetUnfolderBase]: 91/795 cut-off events. [2024-11-07 15:38:21,714 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-07 15:38:21,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1031 conditions, 795 events. 91/795 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4698 event pairs, 30 based on Foata normal form. 0/726 useless extension candidates. Maximal degree in co-relation 962. Up to 125 conditions per place. [2024-11-07 15:38:21,725 INFO L140 encePairwiseOnDemand]: 138/147 looper letters, 30 selfloop transitions, 6 changer transitions 0/145 dead transitions. [2024-11-07 15:38:21,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 145 transitions, 386 flow [2024-11-07 15:38:21,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:38:21,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:38:21,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2024-11-07 15:38:21,728 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8435374149659864 [2024-11-07 15:38:21,728 INFO L175 Difference]: Start difference. First operand has 140 places, 132 transitions, 285 flow. Second operand 3 states and 372 transitions. [2024-11-07 15:38:21,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 145 transitions, 386 flow [2024-11-07 15:38:21,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 145 transitions, 376 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:38:21,737 INFO L231 Difference]: Finished difference. Result has 137 places, 134 transitions, 313 flow [2024-11-07 15:38:21,739 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=313, PETRI_PLACES=137, PETRI_TRANSITIONS=134} [2024-11-07 15:38:21,740 INFO L277 CegarLoopForPetriNet]: 137 programPoint places, 0 predicate places. [2024-11-07 15:38:21,743 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 134 transitions, 313 flow [2024-11-07 15:38:21,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 15:38:21,744 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:21,744 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:38:21,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 15:38:21,744 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-07 15:38:21,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:21,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1800401091, now seen corresponding path program 1 times [2024-11-07 15:38:21,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:21,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444340606] [2024-11-07 15:38:21,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:21,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:38:21,852 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 15:38:21,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:38:21,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444340606] [2024-11-07 15:38:21,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444340606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:38:21,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:38:21,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:38:21,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988026320] [2024-11-07 15:38:21,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:38:21,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:38:21,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:38:21,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:38:21,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:38:21,892 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 147 [2024-11-07 15:38:21,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 134 transitions, 313 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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 15:38:21,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:38:21,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 147 [2024-11-07 15:38:21,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:38:22,199 INFO L124 PetriNetUnfolderBase]: 94/797 cut-off events. [2024-11-07 15:38:22,200 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-07 15:38:22,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 797 events. 94/797 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4756 event pairs, 60 based on Foata normal form. 0/728 useless extension candidates. Maximal degree in co-relation 1062. Up to 189 conditions per place. [2024-11-07 15:38:22,211 INFO L140 encePairwiseOnDemand]: 142/147 looper letters, 27 selfloop transitions, 4 changer transitions 0/141 dead transitions. [2024-11-07 15:38:22,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 141 transitions, 393 flow [2024-11-07 15:38:22,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:38:22,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:38:22,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2024-11-07 15:38:22,213 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8344671201814059 [2024-11-07 15:38:22,213 INFO L175 Difference]: Start difference. First operand has 137 places, 134 transitions, 313 flow. Second operand 3 states and 368 transitions. [2024-11-07 15:38:22,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 141 transitions, 393 flow [2024-11-07 15:38:22,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 141 transitions, 379 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:38:22,221 INFO L231 Difference]: Finished difference. Result has 139 places, 137 transitions, 333 flow [2024-11-07 15:38:22,222 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=333, PETRI_PLACES=139, PETRI_TRANSITIONS=137} [2024-11-07 15:38:22,227 INFO L277 CegarLoopForPetriNet]: 137 programPoint places, 2 predicate places. [2024-11-07 15:38:22,228 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 137 transitions, 333 flow [2024-11-07 15:38:22,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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 15:38:22,228 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:22,229 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:38:22,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 15:38:22,229 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-07 15:38:22,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:22,229 INFO L85 PathProgramCache]: Analyzing trace with hash 660933758, now seen corresponding path program 1 times [2024-11-07 15:38:22,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:22,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80214388] [2024-11-07 15:38:22,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:22,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:38:22,287 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 15:38:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:38:22,371 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 15:38:22,377 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 15:38:22,381 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-07 15:38:22,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-07 15:38:22,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-07 15:38:22,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-07 15:38:22,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-07 15:38:22,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-07 15:38:22,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-07 15:38:22,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-07 15:38:22,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-07 15:38:22,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-07 15:38:22,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-07 15:38:22,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-07 15:38:22,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 15:38:22,384 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-07 15:38:22,391 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 15:38:22,392 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-07 15:38:22,449 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 15:38:22,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 196 transitions, 408 flow [2024-11-07 15:38:22,562 INFO L124 PetriNetUnfolderBase]: 34/342 cut-off events. [2024-11-07 15:38:22,566 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-07 15:38:22,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 342 events. 34/342 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1167 event pairs, 0 based on Foata normal form. 0/286 useless extension candidates. Maximal degree in co-relation 208. Up to 8 conditions per place. [2024-11-07 15:38:22,575 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 196 transitions, 408 flow [2024-11-07 15:38:22,583 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 196 transitions, 408 flow [2024-11-07 15:38:22,584 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:38:22,587 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;@6431d818, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:38:22,587 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-07 15:38:22,596 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:38:22,601 INFO L124 PetriNetUnfolderBase]: 2/53 cut-off events. [2024-11-07 15:38:22,601 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:38:22,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:22,601 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:38:22,602 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-07 15:38:22,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:22,602 INFO L85 PathProgramCache]: Analyzing trace with hash 149931292, now seen corresponding path program 1 times [2024-11-07 15:38:22,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:22,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051666964] [2024-11-07 15:38:22,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:22,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:38:22,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:38:22,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:38:22,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051666964] [2024-11-07 15:38:22,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051666964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:38:22,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:38:22,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:38:22,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942065660] [2024-11-07 15:38:22,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:38:22,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:38:22,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:38:22,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:38:22,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:38:22,758 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 196 [2024-11-07 15:38:22,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 196 transitions, 408 flow. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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 15:38:22,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:38:22,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 196 [2024-11-07 15:38:22,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:38:24,029 INFO L124 PetriNetUnfolderBase]: 788/4305 cut-off events. [2024-11-07 15:38:24,035 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-07 15:38:24,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5658 conditions, 4305 events. 788/4305 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 41159 event pairs, 348 based on Foata normal form. 749/4668 useless extension candidates. Maximal degree in co-relation 721. Up to 1303 conditions per place. [2024-11-07 15:38:24,079 INFO L140 encePairwiseOnDemand]: 175/196 looper letters, 31 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2024-11-07 15:38:24,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 183 transitions, 448 flow [2024-11-07 15:38:24,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:38:24,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:38:24,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2024-11-07 15:38:24,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8707482993197279 [2024-11-07 15:38:24,081 INFO L175 Difference]: Start difference. First operand has 181 places, 196 transitions, 408 flow. Second operand 3 states and 512 transitions. [2024-11-07 15:38:24,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 183 transitions, 448 flow [2024-11-07 15:38:24,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 183 transitions, 448 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:38:24,086 INFO L231 Difference]: Finished difference. Result has 182 places, 177 transitions, 380 flow [2024-11-07 15:38:24,086 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=380, PETRI_PLACES=182, PETRI_TRANSITIONS=177} [2024-11-07 15:38:24,088 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 1 predicate places. [2024-11-07 15:38:24,089 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 177 transitions, 380 flow [2024-11-07 15:38:24,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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 15:38:24,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:24,090 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:38:24,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 15:38:24,090 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-07 15:38:24,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:24,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1177923550, now seen corresponding path program 1 times [2024-11-07 15:38:24,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:24,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139031427] [2024-11-07 15:38:24,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:24,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:38:24,661 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 15:38:24,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:38:24,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139031427] [2024-11-07 15:38:24,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139031427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:38:24,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:38:24,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:38:24,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959105168] [2024-11-07 15:38:24,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:38:24,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:38:24,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:38:24,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:38:24,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:38:24,886 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 196 [2024-11-07 15:38:24,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 177 transitions, 380 flow. Second operand has 6 states, 6 states have (on average 140.5) internal successors, (843), 6 states have internal predecessors, (843), 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 15:38:24,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:38:24,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 196 [2024-11-07 15:38:24,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:38:26,404 INFO L124 PetriNetUnfolderBase]: 1718/5680 cut-off events. [2024-11-07 15:38:26,404 INFO L125 PetriNetUnfolderBase]: For 119/119 co-relation queries the response was YES. [2024-11-07 15:38:26,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8692 conditions, 5680 events. 1718/5680 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 54009 event pairs, 222 based on Foata normal form. 0/5288 useless extension candidates. Maximal degree in co-relation 1233. Up to 2015 conditions per place. [2024-11-07 15:38:26,502 INFO L140 encePairwiseOnDemand]: 190/196 looper letters, 80 selfloop transitions, 6 changer transitions 0/224 dead transitions. [2024-11-07 15:38:26,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 224 transitions, 646 flow [2024-11-07 15:38:26,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:38:26,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:38:26,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 920 transitions. [2024-11-07 15:38:26,517 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.782312925170068 [2024-11-07 15:38:26,517 INFO L175 Difference]: Start difference. First operand has 182 places, 177 transitions, 380 flow. Second operand 6 states and 920 transitions. [2024-11-07 15:38:26,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 224 transitions, 646 flow [2024-11-07 15:38:26,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 224 transitions, 644 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:38:26,525 INFO L231 Difference]: Finished difference. Result has 185 places, 176 transitions, 388 flow [2024-11-07 15:38:26,526 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=388, PETRI_PLACES=185, PETRI_TRANSITIONS=176} [2024-11-07 15:38:26,526 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 4 predicate places. [2024-11-07 15:38:26,526 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 176 transitions, 388 flow [2024-11-07 15:38:26,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 140.5) internal successors, (843), 6 states have internal predecessors, (843), 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 15:38:26,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:26,527 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:38:26,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 15:38:26,527 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-07 15:38:26,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:26,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1892525488, now seen corresponding path program 1 times [2024-11-07 15:38:26,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:26,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080087268] [2024-11-07 15:38:26,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:26,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:38:26,705 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 15:38:26,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:38:26,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080087268] [2024-11-07 15:38:26,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080087268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:38:26,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:38:26,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:38:26,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985719262] [2024-11-07 15:38:26,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:38:26,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:38:26,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:38:26,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:38:26,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:38:26,798 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 196 [2024-11-07 15:38:26,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 176 transitions, 388 flow. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 15:38:26,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:38:26,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 196 [2024-11-07 15:38:26,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:38:29,965 INFO L124 PetriNetUnfolderBase]: 3893/14603 cut-off events. [2024-11-07 15:38:29,966 INFO L125 PetriNetUnfolderBase]: For 238/238 co-relation queries the response was YES. [2024-11-07 15:38:30,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21154 conditions, 14603 events. 3893/14603 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 164191 event pairs, 1530 based on Foata normal form. 0/13062 useless extension candidates. Maximal degree in co-relation 20044. Up to 3516 conditions per place. [2024-11-07 15:38:30,134 INFO L140 encePairwiseOnDemand]: 177/196 looper letters, 58 selfloop transitions, 14 changer transitions 0/209 dead transitions. [2024-11-07 15:38:30,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 209 transitions, 609 flow [2024-11-07 15:38:30,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:38:30,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:38:30,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 491 transitions. [2024-11-07 15:38:30,139 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8350340136054422 [2024-11-07 15:38:30,140 INFO L175 Difference]: Start difference. First operand has 185 places, 176 transitions, 388 flow. Second operand 3 states and 491 transitions. [2024-11-07 15:38:30,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 209 transitions, 609 flow [2024-11-07 15:38:30,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 209 transitions, 597 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:38:30,149 INFO L231 Difference]: Finished difference. Result has 184 places, 190 transitions, 498 flow [2024-11-07 15:38:30,149 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=184, PETRI_TRANSITIONS=190} [2024-11-07 15:38:30,149 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 3 predicate places. [2024-11-07 15:38:30,149 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 190 transitions, 498 flow [2024-11-07 15:38:30,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 15:38:30,150 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:30,150 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:38:30,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 15:38:30,150 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-07 15:38:30,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:30,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1628660468, now seen corresponding path program 1 times [2024-11-07 15:38:30,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:30,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145277483] [2024-11-07 15:38:30,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:30,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:38:30,247 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 15:38:30,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:38:30,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145277483] [2024-11-07 15:38:30,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145277483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:38:30,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:38:30,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:38:30,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726811938] [2024-11-07 15:38:30,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:38:30,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:38:30,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:38:30,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:38:30,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:38:30,335 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 196 [2024-11-07 15:38:30,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 190 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 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 15:38:30,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:38:30,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 196 [2024-11-07 15:38:30,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:38:31,761 INFO L124 PetriNetUnfolderBase]: 4020/16456 cut-off events. [2024-11-07 15:38:31,762 INFO L125 PetriNetUnfolderBase]: For 4426/4601 co-relation queries the response was YES. [2024-11-07 15:38:31,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27144 conditions, 16456 events. 4020/16456 cut-off events. For 4426/4601 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 193973 event pairs, 2411 based on Foata normal form. 46/14958 useless extension candidates. Maximal degree in co-relation 13739. Up to 5498 conditions per place. [2024-11-07 15:38:31,853 INFO L140 encePairwiseOnDemand]: 187/196 looper letters, 52 selfloop transitions, 14 changer transitions 0/214 dead transitions. [2024-11-07 15:38:31,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 214 transitions, 716 flow [2024-11-07 15:38:31,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:38:31,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:38:31,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 485 transitions. [2024-11-07 15:38:31,855 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8248299319727891 [2024-11-07 15:38:31,855 INFO L175 Difference]: Start difference. First operand has 184 places, 190 transitions, 498 flow. Second operand 3 states and 485 transitions. [2024-11-07 15:38:31,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 214 transitions, 716 flow [2024-11-07 15:38:31,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 214 transitions, 678 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:38:31,865 INFO L231 Difference]: Finished difference. Result has 186 places, 202 transitions, 596 flow [2024-11-07 15:38:31,865 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=596, PETRI_PLACES=186, PETRI_TRANSITIONS=202} [2024-11-07 15:38:31,865 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 5 predicate places. [2024-11-07 15:38:31,865 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 202 transitions, 596 flow [2024-11-07 15:38:31,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 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 15:38:31,866 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:31,866 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:38:31,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 15:38:31,866 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-07 15:38:31,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:31,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1927464448, now seen corresponding path program 1 times [2024-11-07 15:38:31,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:31,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442083767] [2024-11-07 15:38:31,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:31,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:38:31,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:38:31,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:38:31,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442083767] [2024-11-07 15:38:31,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442083767] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:38:31,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004604429] [2024-11-07 15:38:31,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:31,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:38:31,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:38:31,964 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:38:31,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 15:38:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:38:32,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 15:38:32,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:38:32,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:38:32,123 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:38:32,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:38:32,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004604429] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:38:32,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:38:32,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-07 15:38:32,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40552573] [2024-11-07 15:38:32,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:38:32,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 15:38:32,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:38:32,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 15:38:32,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 15:38:32,231 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 196 [2024-11-07 15:38:32,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 202 transitions, 596 flow. Second operand has 10 states, 10 states have (on average 150.5) internal successors, (1505), 10 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:38:32,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:38:32,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 196 [2024-11-07 15:38:32,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:38:32,711 INFO L124 PetriNetUnfolderBase]: 675/2887 cut-off events. [2024-11-07 15:38:32,715 INFO L125 PetriNetUnfolderBase]: For 266/283 co-relation queries the response was YES. [2024-11-07 15:38:32,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4500 conditions, 2887 events. 675/2887 cut-off events. For 266/283 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 24860 event pairs, 56 based on Foata normal form. 106/2870 useless extension candidates. Maximal degree in co-relation 2700. Up to 458 conditions per place. [2024-11-07 15:38:32,744 INFO L140 encePairwiseOnDemand]: 191/196 looper letters, 72 selfloop transitions, 7 changer transitions 0/209 dead transitions. [2024-11-07 15:38:32,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 209 transitions, 722 flow [2024-11-07 15:38:32,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 15:38:32,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 15:38:32,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1413 transitions. [2024-11-07 15:38:32,758 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8010204081632653 [2024-11-07 15:38:32,758 INFO L175 Difference]: Start difference. First operand has 186 places, 202 transitions, 596 flow. Second operand 9 states and 1413 transitions. [2024-11-07 15:38:32,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 209 transitions, 722 flow [2024-11-07 15:38:32,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 209 transitions, 702 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:38:32,774 INFO L231 Difference]: Finished difference. Result has 149 places, 153 transitions, 446 flow [2024-11-07 15:38:32,775 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=446, PETRI_PLACES=149, PETRI_TRANSITIONS=153} [2024-11-07 15:38:32,775 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, -32 predicate places. [2024-11-07 15:38:32,775 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 153 transitions, 446 flow [2024-11-07 15:38:32,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 150.5) internal successors, (1505), 10 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:38:32,778 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:32,781 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:38:32,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-07 15:38:32,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-07 15:38:32,982 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-07 15:38:32,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:32,983 INFO L85 PathProgramCache]: Analyzing trace with hash 573959911, now seen corresponding path program 1 times [2024-11-07 15:38:32,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:32,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107993281] [2024-11-07 15:38:32,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:32,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:38:33,026 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 15:38:33,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:38:33,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107993281] [2024-11-07 15:38:33,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107993281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:38:33,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:38:33,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:38:33,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681238969] [2024-11-07 15:38:33,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:38:33,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:38:33,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:38:33,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:38:33,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:38:33,062 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 196 [2024-11-07 15:38:33,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 153 transitions, 446 flow. Second operand has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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 15:38:33,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:38:33,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 196 [2024-11-07 15:38:33,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:38:33,175 INFO L124 PetriNetUnfolderBase]: 260/1294 cut-off events. [2024-11-07 15:38:33,175 INFO L125 PetriNetUnfolderBase]: For 451/472 co-relation queries the response was YES. [2024-11-07 15:38:33,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2339 conditions, 1294 events. 260/1294 cut-off events. For 451/472 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 8678 event pairs, 132 based on Foata normal form. 7/1209 useless extension candidates. Maximal degree in co-relation 2262. Up to 459 conditions per place. [2024-11-07 15:38:33,185 INFO L140 encePairwiseOnDemand]: 188/196 looper letters, 42 selfloop transitions, 12 changer transitions 0/167 dead transitions. [2024-11-07 15:38:33,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 167 transitions, 598 flow [2024-11-07 15:38:33,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:38:33,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:38:33,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 471 transitions. [2024-11-07 15:38:33,186 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8010204081632653 [2024-11-07 15:38:33,186 INFO L175 Difference]: Start difference. First operand has 149 places, 153 transitions, 446 flow. Second operand 3 states and 471 transitions. [2024-11-07 15:38:33,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 167 transitions, 598 flow [2024-11-07 15:38:33,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 167 transitions, 583 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-07 15:38:33,190 INFO L231 Difference]: Finished difference. Result has 148 places, 161 transitions, 529 flow [2024-11-07 15:38:33,190 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=529, PETRI_PLACES=148, PETRI_TRANSITIONS=161} [2024-11-07 15:38:33,191 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, -33 predicate places. [2024-11-07 15:38:33,191 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 161 transitions, 529 flow [2024-11-07 15:38:33,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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 15:38:33,192 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:33,192 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:38:33,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 15:38:33,192 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-07 15:38:33,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:33,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1794930462, now seen corresponding path program 1 times [2024-11-07 15:38:33,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:33,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235790894] [2024-11-07 15:38:33,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:33,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:38:33,225 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 15:38:33,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:38:33,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235790894] [2024-11-07 15:38:33,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235790894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:38:33,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:38:33,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:38:33,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713561383] [2024-11-07 15:38:33,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:38:33,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:38:33,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:38:33,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:38:33,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:38:33,260 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 196 [2024-11-07 15:38:33,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 161 transitions, 529 flow. Second operand has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 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 15:38:33,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:38:33,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 196 [2024-11-07 15:38:33,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:38:33,354 INFO L124 PetriNetUnfolderBase]: 291/1366 cut-off events. [2024-11-07 15:38:33,354 INFO L125 PetriNetUnfolderBase]: For 1163/1198 co-relation queries the response was YES. [2024-11-07 15:38:33,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2793 conditions, 1366 events. 291/1366 cut-off events. For 1163/1198 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9336 event pairs, 134 based on Foata normal form. 9/1299 useless extension candidates. Maximal degree in co-relation 2719. Up to 501 conditions per place. [2024-11-07 15:38:33,362 INFO L140 encePairwiseOnDemand]: 188/196 looper letters, 49 selfloop transitions, 12 changer transitions 0/176 dead transitions. [2024-11-07 15:38:33,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 176 transitions, 718 flow [2024-11-07 15:38:33,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:38:33,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:38:33,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 472 transitions. [2024-11-07 15:38:33,363 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8027210884353742 [2024-11-07 15:38:33,363 INFO L175 Difference]: Start difference. First operand has 148 places, 161 transitions, 529 flow. Second operand 3 states and 472 transitions. [2024-11-07 15:38:33,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 176 transitions, 718 flow [2024-11-07 15:38:33,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 176 transitions, 690 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:38:33,366 INFO L231 Difference]: Finished difference. Result has 150 places, 169 transitions, 615 flow [2024-11-07 15:38:33,366 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=615, PETRI_PLACES=150, PETRI_TRANSITIONS=169} [2024-11-07 15:38:33,367 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, -31 predicate places. [2024-11-07 15:38:33,367 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 169 transitions, 615 flow [2024-11-07 15:38:33,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 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 15:38:33,367 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:33,367 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:38:33,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 15:38:33,367 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-07 15:38:33,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:33,368 INFO L85 PathProgramCache]: Analyzing trace with hash 508953308, now seen corresponding path program 1 times [2024-11-07 15:38:33,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:33,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75673776] [2024-11-07 15:38:33,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:33,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:38:33,382 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 15:38:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:38:33,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 15:38:33,397 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 15:38:33,397 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-07 15:38:33,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-07 15:38:33,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-07 15:38:33,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-07 15:38:33,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-07 15:38:33,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-07 15:38:33,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2024-11-07 15:38:33,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-07 15:38:33,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-07 15:38:33,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-07 15:38:33,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-07 15:38:33,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-07 15:38:33,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-07 15:38:33,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-07 15:38:33,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-07 15:38:33,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-07 15:38:33,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 15:38:33,398 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:38:33,398 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 15:38:33,398 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-07 15:38:33,416 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-07 15:38:33,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 225 places, 245 transitions, 517 flow [2024-11-07 15:38:33,444 INFO L124 PetriNetUnfolderBase]: 54/523 cut-off events. [2024-11-07 15:38:33,444 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-07 15:38:33,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 523 events. 54/523 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1974 event pairs, 1 based on Foata normal form. 0/437 useless extension candidates. Maximal degree in co-relation 350. Up to 16 conditions per place. [2024-11-07 15:38:33,446 INFO L82 GeneralOperation]: Start removeDead. Operand has 225 places, 245 transitions, 517 flow [2024-11-07 15:38:33,449 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 225 places, 245 transitions, 517 flow [2024-11-07 15:38:33,449 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:38:33,449 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;@6431d818, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:38:33,450 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-07 15:38:33,451 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:38:33,451 INFO L124 PetriNetUnfolderBase]: 2/53 cut-off events. [2024-11-07 15:38:33,451 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:38:33,451 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:33,451 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:38:33,451 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-07 15:38:33,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:33,451 INFO L85 PathProgramCache]: Analyzing trace with hash -625575524, now seen corresponding path program 1 times [2024-11-07 15:38:33,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:33,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545880072] [2024-11-07 15:38:33,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:33,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:38:33,476 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 15:38:33,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:38:33,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545880072] [2024-11-07 15:38:33,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545880072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:38:33,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:38:33,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:38:33,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156333014] [2024-11-07 15:38:33,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:38:33,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:38:33,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:38:33,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:38:33,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:38:33,493 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 245 [2024-11-07 15:38:33,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 245 transitions, 517 flow. Second operand has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 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 15:38:33,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:38:33,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 245 [2024-11-07 15:38:33,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:38:36,377 INFO L124 PetriNetUnfolderBase]: 8948/35254 cut-off events. [2024-11-07 15:38:36,378 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2024-11-07 15:38:36,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48492 conditions, 35254 events. 8948/35254 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 458910 event pairs, 5659 based on Foata normal form. 7668/39699 useless extension candidates. Maximal degree in co-relation 6249. Up to 12802 conditions per place. [2024-11-07 15:38:36,582 INFO L140 encePairwiseOnDemand]: 218/245 looper letters, 39 selfloop transitions, 2 changer transitions 0/226 dead transitions. [2024-11-07 15:38:36,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 226 transitions, 561 flow [2024-11-07 15:38:36,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:38:36,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:38:36,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 631 transitions. [2024-11-07 15:38:36,584 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8585034013605443 [2024-11-07 15:38:36,584 INFO L175 Difference]: Start difference. First operand has 225 places, 245 transitions, 517 flow. Second operand 3 states and 631 transitions. [2024-11-07 15:38:36,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 226 transitions, 561 flow [2024-11-07 15:38:36,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 226 transitions, 561 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:38:36,587 INFO L231 Difference]: Finished difference. Result has 226 places, 220 transitions, 477 flow [2024-11-07 15:38:36,587 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=477, PETRI_PLACES=226, PETRI_TRANSITIONS=220} [2024-11-07 15:38:36,587 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 1 predicate places. [2024-11-07 15:38:36,587 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 220 transitions, 477 flow [2024-11-07 15:38:36,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 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 15:38:36,588 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:36,588 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:38:36,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 15:38:36,588 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-07 15:38:36,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:36,588 INFO L85 PathProgramCache]: Analyzing trace with hash 884343618, now seen corresponding path program 1 times [2024-11-07 15:38:36,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:36,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085769146] [2024-11-07 15:38:36,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:36,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:38:36,883 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 15:38:36,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:38:36,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085769146] [2024-11-07 15:38:36,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085769146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:38:36,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:38:36,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:38:36,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179748574] [2024-11-07 15:38:36,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:38:36,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:38:36,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:38:36,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:38:36,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:38:36,951 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 245 [2024-11-07 15:38:36,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 220 transitions, 477 flow. Second operand has 6 states, 6 states have (on average 175.5) internal successors, (1053), 6 states have internal predecessors, (1053), 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 15:38:36,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:38:36,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 245 [2024-11-07 15:38:36,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:38:41,802 INFO L124 PetriNetUnfolderBase]: 19555/52048 cut-off events. [2024-11-07 15:38:41,802 INFO L125 PetriNetUnfolderBase]: For 1359/1359 co-relation queries the response was YES. [2024-11-07 15:38:41,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81208 conditions, 52048 events. 19555/52048 cut-off events. For 1359/1359 co-relation queries the response was YES. Maximal size of possible extension queue 1311. Compared 636389 event pairs, 2086 based on Foata normal form. 0/48476 useless extension candidates. Maximal degree in co-relation 76339. Up to 20048 conditions per place. [2024-11-07 15:38:42,073 INFO L140 encePairwiseOnDemand]: 239/245 looper letters, 112 selfloop transitions, 6 changer transitions 0/291 dead transitions. [2024-11-07 15:38:42,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 291 transitions, 855 flow [2024-11-07 15:38:42,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:38:42,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:38:42,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1162 transitions. [2024-11-07 15:38:42,076 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7904761904761904 [2024-11-07 15:38:42,076 INFO L175 Difference]: Start difference. First operand has 226 places, 220 transitions, 477 flow. Second operand 6 states and 1162 transitions. [2024-11-07 15:38:42,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 291 transitions, 855 flow [2024-11-07 15:38:42,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 291 transitions, 853 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:38:42,080 INFO L231 Difference]: Finished difference. Result has 229 places, 219 transitions, 485 flow [2024-11-07 15:38:42,080 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=485, PETRI_PLACES=229, PETRI_TRANSITIONS=219} [2024-11-07 15:38:42,080 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 4 predicate places. [2024-11-07 15:38:42,081 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 219 transitions, 485 flow [2024-11-07 15:38:42,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.5) internal successors, (1053), 6 states have internal predecessors, (1053), 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 15:38:42,081 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:38:42,081 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:38:42,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 15:38:42,081 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-07 15:38:42,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:38:42,081 INFO L85 PathProgramCache]: Analyzing trace with hash 533651924, now seen corresponding path program 1 times [2024-11-07 15:38:42,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:38:42,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095296193] [2024-11-07 15:38:42,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:38:42,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:38:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:38:42,121 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 15:38:42,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:38:42,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095296193] [2024-11-07 15:38:42,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095296193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:38:42,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:38:42,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:38:42,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940899370] [2024-11-07 15:38:42,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:38:42,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:38:42,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:38:42,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:38:42,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:38:42,187 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 245 [2024-11-07 15:38:42,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 219 transitions, 485 flow. Second operand has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 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 15:38:42,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:38:42,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 245 [2024-11-07 15:38:42,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:05,432 INFO L124 PetriNetUnfolderBase]: 108065/275142 cut-off events. [2024-11-07 15:39:05,433 INFO L125 PetriNetUnfolderBase]: For 6276/6276 co-relation queries the response was YES. [2024-11-07 15:39:06,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 431142 conditions, 275142 events. 108065/275142 cut-off events. For 6276/6276 co-relation queries the response was YES. Maximal size of possible extension queue 5811. Compared 3980378 event pairs, 42390 based on Foata normal form. 0/244981 useless extension candidates. Maximal degree in co-relation 314154. Up to 82476 conditions per place. [2024-11-07 15:39:07,634 INFO L140 encePairwiseOnDemand]: 218/245 looper letters, 82 selfloop transitions, 20 changer transitions 0/266 dead transitions. [2024-11-07 15:39:07,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 266 transitions, 804 flow [2024-11-07 15:39:07,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:39:07,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:39:07,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 604 transitions. [2024-11-07 15:39:07,636 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8217687074829932 [2024-11-07 15:39:07,636 INFO L175 Difference]: Start difference. First operand has 229 places, 219 transitions, 485 flow. Second operand 3 states and 604 transitions. [2024-11-07 15:39:07,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 266 transitions, 804 flow [2024-11-07 15:39:07,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 266 transitions, 792 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:39:07,642 INFO L231 Difference]: Finished difference. Result has 228 places, 239 transitions, 647 flow [2024-11-07 15:39:07,642 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=647, PETRI_PLACES=228, PETRI_TRANSITIONS=239} [2024-11-07 15:39:07,642 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 3 predicate places. [2024-11-07 15:39:07,643 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 239 transitions, 647 flow [2024-11-07 15:39:07,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 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 15:39:07,643 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:07,643 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:07,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 15:39:07,643 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-07 15:39:07,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:07,644 INFO L85 PathProgramCache]: Analyzing trace with hash 616254083, now seen corresponding path program 1 times [2024-11-07 15:39:07,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:07,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130759551] [2024-11-07 15:39:07,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:07,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:07,665 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 15:39:07,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:07,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130759551] [2024-11-07 15:39:07,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130759551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:07,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:07,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:39:07,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260022449] [2024-11-07 15:39:07,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:07,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:39:07,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:07,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:39:07,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:39:07,709 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 245 [2024-11-07 15:39:07,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 239 transitions, 647 flow. Second operand has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:39:07,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:07,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 245 [2024-11-07 15:39:07,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand