./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.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_51-mutexptr_racefree.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', 'f222d5749b9bb10b4d4c09b2c40e45ee19dec77732a8593ce917652e8ca8a43e'] 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_51-mutexptr_racefree.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 f222d5749b9bb10b4d4c09b2c40e45ee19dec77732a8593ce917652e8ca8a43e --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 15:39:32,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 15:39:32,106 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-07 15:39:32,111 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 15:39:32,111 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 15:39:32,130 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 15:39:32,130 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 15:39:32,131 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 15:39:32,131 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 15:39:32,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 15:39:32,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 15:39:32,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 15:39:32,132 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 15:39:32,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 15:39:32,132 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 15:39:32,132 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 15:39:32,132 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 15:39:32,132 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 15:39:32,132 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 15:39:32,133 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 15:39:32,133 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 15:39:32,133 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 15:39:32,133 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-07 15:39:32,133 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 15:39:32,133 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 15:39:32,133 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 15:39:32,133 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 15:39:32,134 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 15:39:32,134 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 15:39:32,134 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 15:39:32,134 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 15:39:32,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:39:32,134 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 15:39:32,134 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 15:39:32,135 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 15:39:32,135 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 15:39:32,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 15:39:32,135 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 15:39:32,135 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 15:39:32,135 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 15:39:32,135 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 15:39:32,135 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 -> f222d5749b9bb10b4d4c09b2c40e45ee19dec77732a8593ce917652e8ca8a43e [2024-11-07 15:39:32,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 15:39:32,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 15:39:32,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 15:39:32,444 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 15:39:32,444 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 15:39:32,445 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i [2024-11-07 15:39:33,751 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 15:39:34,035 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 15:39:34,036 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i [2024-11-07 15:39:34,045 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/39496dae1/0cc33ac4b4f84e3585ead9f28187ebf1/FLAG78bbf9114 [2024-11-07 15:39:34,309 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/39496dae1/0cc33ac4b4f84e3585ead9f28187ebf1 [2024-11-07 15:39:34,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 15:39:34,312 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 15:39:34,313 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 15:39:34,313 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 15:39:34,316 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 15:39:34,317 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:39:34" (1/1) ... [2024-11-07 15:39:34,318 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bc8d159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:34, skipping insertion in model container [2024-11-07 15:39:34,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:39:34" (1/1) ... [2024-11-07 15:39:34,344 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 15:39:34,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:39:34,617 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 15:39:34,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:39:34,729 INFO L204 MainTranslator]: Completed translation [2024-11-07 15:39:34,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:34 WrapperNode [2024-11-07 15:39:34,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 15:39:34,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 15:39:34,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 15:39:34,731 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 15:39:34,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:34" (1/1) ... [2024-11-07 15:39:34,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:34" (1/1) ... [2024-11-07 15:39:34,786 INFO L138 Inliner]: procedures = 171, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 167 [2024-11-07 15:39:34,790 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 15:39:34,791 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 15:39:34,794 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 15:39:34,794 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 15:39:34,800 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:34" (1/1) ... [2024-11-07 15:39:34,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:34" (1/1) ... [2024-11-07 15:39:34,804 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:34" (1/1) ... [2024-11-07 15:39:34,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:34" (1/1) ... [2024-11-07 15:39:34,829 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:34" (1/1) ... [2024-11-07 15:39:34,833 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:34" (1/1) ... [2024-11-07 15:39:34,835 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:34" (1/1) ... [2024-11-07 15:39:34,835 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:34" (1/1) ... [2024-11-07 15:39:34,838 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 15:39:34,838 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 15:39:34,838 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 15:39:34,839 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 15:39:34,839 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:34" (1/1) ... [2024-11-07 15:39:34,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:39:34,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:39:34,879 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 15:39:34,883 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 15:39:34,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-07 15:39:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-07 15:39:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 15:39:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 15:39:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 15:39:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-07 15:39:34,909 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-07 15:39:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 15:39:34,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-07 15:39:34,910 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 15:39:34,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 15:39:34,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 15:39:34,911 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 15:39:35,060 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 15:39:35,062 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 15:39:35,531 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 15:39:35,532 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 15:39:35,575 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 15:39:35,576 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-07 15:39:35,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:39:35 BoogieIcfgContainer [2024-11-07 15:39:35,576 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 15:39:35,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 15:39:35,583 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 15:39:35,588 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 15:39:35,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:39:34" (1/3) ... [2024-11-07 15:39:35,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4361484d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:39:35, skipping insertion in model container [2024-11-07 15:39:35,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:34" (2/3) ... [2024-11-07 15:39:35,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4361484d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:39:35, skipping insertion in model container [2024-11-07 15:39:35,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:39:35" (3/3) ... [2024-11-07 15:39:35,590 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_51-mutexptr_racefree.i [2024-11-07 15:39:35,604 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 15:39:35,605 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-07 15:39:35,605 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 15:39:35,704 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-07 15:39:35,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 240 places, 250 transitions, 507 flow [2024-11-07 15:39:35,896 INFO L124 PetriNetUnfolderBase]: 19/324 cut-off events. [2024-11-07 15:39:35,898 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 15:39:35,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 324 events. 19/324 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 848 event pairs, 0 based on Foata normal form. 0/282 useless extension candidates. Maximal degree in co-relation 166. Up to 4 conditions per place. [2024-11-07 15:39:35,908 INFO L82 GeneralOperation]: Start removeDead. Operand has 240 places, 250 transitions, 507 flow [2024-11-07 15:39:35,955 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 240 places, 250 transitions, 507 flow [2024-11-07 15:39:35,966 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:39:35,979 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;@2327f3b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:39:35,981 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-07 15:39:36,000 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:39:36,001 INFO L124 PetriNetUnfolderBase]: 0/87 cut-off events. [2024-11-07 15:39:36,001 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:39:36,002 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:36,002 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:36,003 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-07 15:39:36,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:36,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1800102507, now seen corresponding path program 1 times [2024-11-07 15:39:36,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:36,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167143990] [2024-11-07 15:39:36,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:36,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:36,321 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 15:39:36,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:36,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167143990] [2024-11-07 15:39:36,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167143990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:36,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:36,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:39:36,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784489157] [2024-11-07 15:39:36,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:36,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:39:36,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:36,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:39:36,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:39:36,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 250 [2024-11-07 15:39:36,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 250 transitions, 507 flow. Second operand has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 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 15:39:36,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:36,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 250 [2024-11-07 15:39:36,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:36,697 INFO L124 PetriNetUnfolderBase]: 73/901 cut-off events. [2024-11-07 15:39:36,699 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-07 15:39:36,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1083 conditions, 901 events. 73/901 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4416 event pairs, 72 based on Foata normal form. 84/897 useless extension candidates. Maximal degree in co-relation 899. Up to 175 conditions per place. [2024-11-07 15:39:36,708 INFO L140 encePairwiseOnDemand]: 235/250 looper letters, 22 selfloop transitions, 2 changer transitions 0/235 dead transitions. [2024-11-07 15:39:36,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 235 transitions, 525 flow [2024-11-07 15:39:36,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:39:36,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:39:36,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 673 transitions. [2024-11-07 15:39:36,726 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8973333333333333 [2024-11-07 15:39:36,727 INFO L175 Difference]: Start difference. First operand has 240 places, 250 transitions, 507 flow. Second operand 3 states and 673 transitions. [2024-11-07 15:39:36,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 235 transitions, 525 flow [2024-11-07 15:39:36,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 235 transitions, 525 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:39:36,741 INFO L231 Difference]: Finished difference. Result has 239 places, 235 transitions, 481 flow [2024-11-07 15:39:36,743 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=481, PETRI_PLACES=239, PETRI_TRANSITIONS=235} [2024-11-07 15:39:36,747 INFO L277 CegarLoopForPetriNet]: 240 programPoint places, -1 predicate places. [2024-11-07 15:39:36,750 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 235 transitions, 481 flow [2024-11-07 15:39:36,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 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 15:39:36,750 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:36,750 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:39:36,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 15:39:36,751 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-07 15:39:36,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:36,752 INFO L85 PathProgramCache]: Analyzing trace with hash 594032613, now seen corresponding path program 1 times [2024-11-07 15:39:36,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:36,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124485658] [2024-11-07 15:39:36,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:36,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:36,959 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 15:39:36,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:36,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124485658] [2024-11-07 15:39:36,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124485658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:36,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:36,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:39:36,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998650513] [2024-11-07 15:39:36,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:36,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:39:36,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:36,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:39:36,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:39:36,994 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 250 [2024-11-07 15:39:36,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 235 transitions, 481 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 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 15:39:36,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:36,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 250 [2024-11-07 15:39:36,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:37,132 INFO L124 PetriNetUnfolderBase]: 48/724 cut-off events. [2024-11-07 15:39:37,133 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-07 15:39:37,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 848 conditions, 724 events. 48/724 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3156 event pairs, 0 based on Foata normal form. 1/647 useless extension candidates. Maximal degree in co-relation 752. Up to 108 conditions per place. [2024-11-07 15:39:37,138 INFO L140 encePairwiseOnDemand]: 247/250 looper letters, 22 selfloop transitions, 2 changer transitions 0/241 dead transitions. [2024-11-07 15:39:37,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 241 transitions, 541 flow [2024-11-07 15:39:37,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:39:37,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:39:37,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2024-11-07 15:39:37,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9093333333333333 [2024-11-07 15:39:37,163 INFO L175 Difference]: Start difference. First operand has 239 places, 235 transitions, 481 flow. Second operand 3 states and 682 transitions. [2024-11-07 15:39:37,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 241 transitions, 541 flow [2024-11-07 15:39:37,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 241 transitions, 537 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:39:37,173 INFO L231 Difference]: Finished difference. Result has 240 places, 235 transitions, 485 flow [2024-11-07 15:39:37,174 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=485, PETRI_PLACES=240, PETRI_TRANSITIONS=235} [2024-11-07 15:39:37,175 INFO L277 CegarLoopForPetriNet]: 240 programPoint places, 0 predicate places. [2024-11-07 15:39:37,175 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 235 transitions, 485 flow [2024-11-07 15:39:37,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 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 15:39:37,176 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:37,176 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:37,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 15:39:37,176 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-07 15:39:37,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:37,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1127339270, now seen corresponding path program 1 times [2024-11-07 15:39:37,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:37,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770009423] [2024-11-07 15:39:37,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:37,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:37,983 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 15:39:37,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:37,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770009423] [2024-11-07 15:39:37,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770009423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:37,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:37,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:39:37,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084224032] [2024-11-07 15:39:37,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:37,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:39:37,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:37,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:39:37,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:39:38,231 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 250 [2024-11-07 15:39:38,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 235 transitions, 485 flow. Second operand has 6 states, 6 states have (on average 188.5) internal successors, (1131), 6 states have internal predecessors, (1131), 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 15:39:38,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:38,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 250 [2024-11-07 15:39:38,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:38,900 INFO L124 PetriNetUnfolderBase]: 578/2387 cut-off events. [2024-11-07 15:39:38,901 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-07 15:39:38,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3688 conditions, 2387 events. 578/2387 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 16672 event pairs, 343 based on Foata normal form. 0/2171 useless extension candidates. Maximal degree in co-relation 3517. Up to 1071 conditions per place. [2024-11-07 15:39:38,914 INFO L140 encePairwiseOnDemand]: 227/250 looper letters, 73 selfloop transitions, 70 changer transitions 0/328 dead transitions. [2024-11-07 15:39:38,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 328 transitions, 960 flow [2024-11-07 15:39:38,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:39:38,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:39:38,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1266 transitions. [2024-11-07 15:39:38,919 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.844 [2024-11-07 15:39:38,919 INFO L175 Difference]: Start difference. First operand has 240 places, 235 transitions, 485 flow. Second operand 6 states and 1266 transitions. [2024-11-07 15:39:38,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 328 transitions, 960 flow [2024-11-07 15:39:38,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 328 transitions, 954 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:39:38,927 INFO L231 Difference]: Finished difference. Result has 248 places, 304 transitions, 944 flow [2024-11-07 15:39:38,927 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=944, PETRI_PLACES=248, PETRI_TRANSITIONS=304} [2024-11-07 15:39:38,928 INFO L277 CegarLoopForPetriNet]: 240 programPoint places, 8 predicate places. [2024-11-07 15:39:38,928 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 304 transitions, 944 flow [2024-11-07 15:39:38,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.5) internal successors, (1131), 6 states have internal predecessors, (1131), 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 15:39:38,929 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:38,930 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:38,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 15:39:38,930 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-07 15:39:38,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:38,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1436381775, now seen corresponding path program 1 times [2024-11-07 15:39:38,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:38,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034464934] [2024-11-07 15:39:38,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:38,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:38,996 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 15:39:38,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:38,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034464934] [2024-11-07 15:39:38,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034464934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:38,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:38,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:39:38,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385971027] [2024-11-07 15:39:38,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:38,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:39:38,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:38,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:39:38,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:39:39,030 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 250 [2024-11-07 15:39:39,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 304 transitions, 944 flow. Second operand has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 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 15:39:39,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:39,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 250 [2024-11-07 15:39:39,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:39,244 INFO L124 PetriNetUnfolderBase]: 260/1623 cut-off events. [2024-11-07 15:39:39,244 INFO L125 PetriNetUnfolderBase]: For 90/101 co-relation queries the response was YES. [2024-11-07 15:39:39,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2516 conditions, 1623 events. 260/1623 cut-off events. For 90/101 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 10493 event pairs, 110 based on Foata normal form. 0/1520 useless extension candidates. Maximal degree in co-relation 2353. Up to 299 conditions per place. [2024-11-07 15:39:39,255 INFO L140 encePairwiseOnDemand]: 242/250 looper letters, 25 selfloop transitions, 2 changer transitions 0/300 dead transitions. [2024-11-07 15:39:39,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 300 transitions, 990 flow [2024-11-07 15:39:39,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:39:39,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:39:39,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 651 transitions. [2024-11-07 15:39:39,257 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.868 [2024-11-07 15:39:39,258 INFO L175 Difference]: Start difference. First operand has 248 places, 304 transitions, 944 flow. Second operand 3 states and 651 transitions. [2024-11-07 15:39:39,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 300 transitions, 990 flow [2024-11-07 15:39:39,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 300 transitions, 990 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:39:39,268 INFO L231 Difference]: Finished difference. Result has 245 places, 300 transitions, 946 flow [2024-11-07 15:39:39,269 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=932, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=946, PETRI_PLACES=245, PETRI_TRANSITIONS=300} [2024-11-07 15:39:39,270 INFO L277 CegarLoopForPetriNet]: 240 programPoint places, 5 predicate places. [2024-11-07 15:39:39,270 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 300 transitions, 946 flow [2024-11-07 15:39:39,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 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 15:39:39,271 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:39,271 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:39:39,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 15:39:39,272 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-07 15:39:39,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:39,273 INFO L85 PathProgramCache]: Analyzing trace with hash 2018360654, now seen corresponding path program 1 times [2024-11-07 15:39:39,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:39,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564866756] [2024-11-07 15:39:39,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:39,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:39:39,320 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 15:39:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:39:39,392 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 15:39:39,393 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 15:39:39,394 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2024-11-07 15:39:39,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2024-11-07 15:39:39,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2024-11-07 15:39:39,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2024-11-07 15:39:39,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2024-11-07 15:39:39,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2024-11-07 15:39:39,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2024-11-07 15:39:39,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2024-11-07 15:39:39,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2024-11-07 15:39:39,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2024-11-07 15:39:39,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2024-11-07 15:39:39,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2024-11-07 15:39:39,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2024-11-07 15:39:39,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2024-11-07 15:39:39,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2024-11-07 15:39:39,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2024-11-07 15:39:39,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2024-11-07 15:39:39,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2024-11-07 15:39:39,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2024-11-07 15:39:39,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2024-11-07 15:39:39,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2024-11-07 15:39:39,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2024-11-07 15:39:39,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 15:39:39,397 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-07 15:39:39,402 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 15:39:39,402 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-07 15:39:39,450 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 15:39:39,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 312 places, 327 transitions, 670 flow [2024-11-07 15:39:39,529 INFO L124 PetriNetUnfolderBase]: 34/503 cut-off events. [2024-11-07 15:39:39,529 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-07 15:39:39,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 515 conditions, 503 events. 34/503 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1777 event pairs, 0 based on Foata normal form. 0/431 useless extension candidates. Maximal degree in co-relation 326. Up to 8 conditions per place. [2024-11-07 15:39:39,536 INFO L82 GeneralOperation]: Start removeDead. Operand has 312 places, 327 transitions, 670 flow [2024-11-07 15:39:39,540 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 312 places, 327 transitions, 670 flow [2024-11-07 15:39:39,541 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:39:39,542 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;@2327f3b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:39:39,542 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-07 15:39:39,551 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:39:39,552 INFO L124 PetriNetUnfolderBase]: 0/87 cut-off events. [2024-11-07 15:39:39,552 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:39:39,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:39,552 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:39,553 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-07 15:39:39,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:39,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1276136427, now seen corresponding path program 1 times [2024-11-07 15:39:39,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:39,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882032906] [2024-11-07 15:39:39,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:39,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:39,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:39:39,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:39,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882032906] [2024-11-07 15:39:39,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882032906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:39,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:39,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:39:39,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862055135] [2024-11-07 15:39:39,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:39,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:39:39,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:39,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:39:39,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:39:39,659 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 327 [2024-11-07 15:39:39,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 327 transitions, 670 flow. Second operand has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 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 15:39:39,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:39,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 327 [2024-11-07 15:39:39,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:41,370 INFO L124 PetriNetUnfolderBase]: 1642/9394 cut-off events. [2024-11-07 15:39:41,370 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-11-07 15:39:41,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12127 conditions, 9394 events. 1642/9394 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 97562 event pairs, 1629 based on Foata normal form. 1315/9786 useless extension candidates. Maximal degree in co-relation 10772. Up to 2673 conditions per place. [2024-11-07 15:39:41,450 INFO L140 encePairwiseOnDemand]: 306/327 looper letters, 33 selfloop transitions, 2 changer transitions 0/306 dead transitions. [2024-11-07 15:39:41,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 306 transitions, 698 flow [2024-11-07 15:39:41,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:39:41,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:39:41,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 870 transitions. [2024-11-07 15:39:41,452 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8868501529051988 [2024-11-07 15:39:41,452 INFO L175 Difference]: Start difference. First operand has 312 places, 327 transitions, 670 flow. Second operand 3 states and 870 transitions. [2024-11-07 15:39:41,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 306 transitions, 698 flow [2024-11-07 15:39:41,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 306 transitions, 698 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:39:41,485 INFO L231 Difference]: Finished difference. Result has 311 places, 306 transitions, 632 flow [2024-11-07 15:39:41,486 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=632, PETRI_PLACES=311, PETRI_TRANSITIONS=306} [2024-11-07 15:39:41,487 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, -1 predicate places. [2024-11-07 15:39:41,487 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 306 transitions, 632 flow [2024-11-07 15:39:41,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 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 15:39:41,488 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:41,488 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:41,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 15:39:41,489 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-07 15:39:41,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:41,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1729178612, now seen corresponding path program 1 times [2024-11-07 15:39:41,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:41,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314686613] [2024-11-07 15:39:41,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:41,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:41,547 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 15:39:41,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:41,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314686613] [2024-11-07 15:39:41,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314686613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:41,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:41,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:39:41,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780729653] [2024-11-07 15:39:41,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:41,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:39:41,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:41,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:39:41,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:39:41,579 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 327 [2024-11-07 15:39:41,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 306 transitions, 632 flow. Second operand has 3 states, 3 states have (on average 283.3333333333333) internal successors, (850), 3 states have internal predecessors, (850), 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 15:39:41,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:41,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 327 [2024-11-07 15:39:41,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:42,567 INFO L124 PetriNetUnfolderBase]: 788/5496 cut-off events. [2024-11-07 15:39:42,568 INFO L125 PetriNetUnfolderBase]: For 119/119 co-relation queries the response was YES. [2024-11-07 15:39:42,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6852 conditions, 5496 events. 788/5496 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 53175 event pairs, 348 based on Foata normal form. 1/4832 useless extension candidates. Maximal degree in co-relation 6755. Up to 1303 conditions per place. [2024-11-07 15:39:42,610 INFO L140 encePairwiseOnDemand]: 324/327 looper letters, 31 selfloop transitions, 2 changer transitions 0/313 dead transitions. [2024-11-07 15:39:42,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 313 transitions, 712 flow [2024-11-07 15:39:42,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:39:42,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:39:42,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 880 transitions. [2024-11-07 15:39:42,613 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8970438328236493 [2024-11-07 15:39:42,613 INFO L175 Difference]: Start difference. First operand has 311 places, 306 transitions, 632 flow. Second operand 3 states and 880 transitions. [2024-11-07 15:39:42,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 313 transitions, 712 flow [2024-11-07 15:39:42,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 313 transitions, 708 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:39:42,620 INFO L231 Difference]: Finished difference. Result has 312 places, 307 transitions, 640 flow [2024-11-07 15:39:42,621 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=640, PETRI_PLACES=312, PETRI_TRANSITIONS=307} [2024-11-07 15:39:42,621 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 0 predicate places. [2024-11-07 15:39:42,622 INFO L471 AbstractCegarLoop]: Abstraction has has 312 places, 307 transitions, 640 flow [2024-11-07 15:39:42,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 283.3333333333333) internal successors, (850), 3 states have internal predecessors, (850), 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 15:39:42,622 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:42,622 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:42,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 15:39:42,623 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-07 15:39:42,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:42,623 INFO L85 PathProgramCache]: Analyzing trace with hash 295510145, now seen corresponding path program 1 times [2024-11-07 15:39:42,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:42,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3797203] [2024-11-07 15:39:42,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:42,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:43,052 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 15:39:43,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:43,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3797203] [2024-11-07 15:39:43,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3797203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:43,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:43,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:39:43,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844017812] [2024-11-07 15:39:43,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:43,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:39:43,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:43,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:39:43,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:39:43,338 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 327 [2024-11-07 15:39:43,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 307 transitions, 640 flow. Second operand has 6 states, 6 states have (on average 235.5) internal successors, (1413), 6 states have internal predecessors, (1413), 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 15:39:43,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:43,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 327 [2024-11-07 15:39:43,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:52,054 INFO L124 PetriNetUnfolderBase]: 29144/72431 cut-off events. [2024-11-07 15:39:52,054 INFO L125 PetriNetUnfolderBase]: For 1348/1348 co-relation queries the response was YES. [2024-11-07 15:39:52,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118632 conditions, 72431 events. 29144/72431 cut-off events. For 1348/1348 co-relation queries the response was YES. Maximal size of possible extension queue 1188. Compared 843640 event pairs, 20506 based on Foata normal form. 0/66594 useless extension candidates. Maximal degree in co-relation 118337. Up to 40528 conditions per place. [2024-11-07 15:39:52,809 INFO L140 encePairwiseOnDemand]: 288/327 looper letters, 123 selfloop transitions, 135 changer transitions 0/490 dead transitions. [2024-11-07 15:39:52,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 490 transitions, 1532 flow [2024-11-07 15:39:52,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:39:52,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:39:52,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1661 transitions. [2024-11-07 15:39:52,825 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8465851172273191 [2024-11-07 15:39:52,825 INFO L175 Difference]: Start difference. First operand has 312 places, 307 transitions, 640 flow. Second operand 6 states and 1661 transitions. [2024-11-07 15:39:52,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 490 transitions, 1532 flow [2024-11-07 15:39:52,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 490 transitions, 1529 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:39:52,856 INFO L231 Difference]: Finished difference. Result has 321 places, 441 transitions, 1528 flow [2024-11-07 15:39:52,858 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1528, PETRI_PLACES=321, PETRI_TRANSITIONS=441} [2024-11-07 15:39:52,860 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 9 predicate places. [2024-11-07 15:39:52,860 INFO L471 AbstractCegarLoop]: Abstraction has has 321 places, 441 transitions, 1528 flow [2024-11-07 15:39:52,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 235.5) internal successors, (1413), 6 states have internal predecessors, (1413), 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 15:39:52,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:52,862 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:52,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 15:39:52,862 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-07 15:39:52,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:52,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1453012179, now seen corresponding path program 1 times [2024-11-07 15:39:52,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:52,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880236727] [2024-11-07 15:39:52,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:52,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:52,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:39:52,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:52,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880236727] [2024-11-07 15:39:52,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880236727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:52,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:52,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:39:52,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405856534] [2024-11-07 15:39:52,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:52,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:39:52,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:52,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:39:52,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:39:53,015 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 327 [2024-11-07 15:39:53,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 441 transitions, 1528 flow. Second operand has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 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 15:39:53,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:53,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 327 [2024-11-07 15:39:53,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:59,058 INFO L124 PetriNetUnfolderBase]: 14879/50521 cut-off events. [2024-11-07 15:39:59,059 INFO L125 PetriNetUnfolderBase]: For 5328/5921 co-relation queries the response was YES. [2024-11-07 15:39:59,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86710 conditions, 50521 events. 14879/50521 cut-off events. For 5328/5921 co-relation queries the response was YES. Maximal size of possible extension queue 919. Compared 635845 event pairs, 9103 based on Foata normal form. 0/46824 useless extension candidates. Maximal degree in co-relation 75640. Up to 14377 conditions per place. [2024-11-07 15:39:59,381 INFO L140 encePairwiseOnDemand]: 315/327 looper letters, 40 selfloop transitions, 3 changer transitions 0/436 dead transitions. [2024-11-07 15:39:59,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 436 transitions, 1609 flow [2024-11-07 15:39:59,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:39:59,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:39:59,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 832 transitions. [2024-11-07 15:39:59,384 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8481141692150866 [2024-11-07 15:39:59,384 INFO L175 Difference]: Start difference. First operand has 321 places, 441 transitions, 1528 flow. Second operand 3 states and 832 transitions. [2024-11-07 15:39:59,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 436 transitions, 1609 flow [2024-11-07 15:39:59,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 436 transitions, 1609 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:39:59,481 INFO L231 Difference]: Finished difference. Result has 315 places, 435 transitions, 1531 flow [2024-11-07 15:39:59,481 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=1510, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1531, PETRI_PLACES=315, PETRI_TRANSITIONS=435} [2024-11-07 15:39:59,482 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 3 predicate places. [2024-11-07 15:39:59,482 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 435 transitions, 1531 flow [2024-11-07 15:39:59,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 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 15:39:59,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:59,483 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:59,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 15:39:59,483 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-07 15:39:59,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:59,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1388850367, now seen corresponding path program 1 times [2024-11-07 15:39:59,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:59,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729761066] [2024-11-07 15:39:59,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:59,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:59,881 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 15:39:59,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:59,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729761066] [2024-11-07 15:39:59,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729761066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:59,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:59,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:39:59,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991245818] [2024-11-07 15:39:59,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:59,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:39:59,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:59,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:39:59,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:40:00,210 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 327 [2024-11-07 15:40:00,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 435 transitions, 1531 flow. Second operand has 6 states, 6 states have (on average 235.16666666666666) internal successors, (1411), 6 states have internal predecessors, (1411), 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 15:40:00,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:00,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 327 [2024-11-07 15:40:00,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:18,923 INFO L124 PetriNetUnfolderBase]: 71701/172047 cut-off events. [2024-11-07 15:40:18,923 INFO L125 PetriNetUnfolderBase]: For 43509/47967 co-relation queries the response was YES. [2024-11-07 15:40:19,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358688 conditions, 172047 events. 71701/172047 cut-off events. For 43509/47967 co-relation queries the response was YES. Maximal size of possible extension queue 2876. Compared 2181899 event pairs, 14346 based on Foata normal form. 67/162523 useless extension candidates. Maximal degree in co-relation 352914. Up to 49105 conditions per place. [2024-11-07 15:40:20,099 INFO L140 encePairwiseOnDemand]: 273/327 looper letters, 493 selfloop transitions, 227 changer transitions 0/949 dead transitions. [2024-11-07 15:40:20,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 949 transitions, 5247 flow [2024-11-07 15:40:20,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:40:20,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:40:20,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1765 transitions. [2024-11-07 15:40:20,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8995922528032619 [2024-11-07 15:40:20,104 INFO L175 Difference]: Start difference. First operand has 315 places, 435 transitions, 1531 flow. Second operand 6 states and 1765 transitions. [2024-11-07 15:40:20,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 949 transitions, 5247 flow [2024-11-07 15:40:20,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 949 transitions, 5247 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:40:20,389 INFO L231 Difference]: Finished difference. Result has 325 places, 674 transitions, 3907 flow [2024-11-07 15:40:20,389 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=1531, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3907, PETRI_PLACES=325, PETRI_TRANSITIONS=674} [2024-11-07 15:40:20,390 INFO L277 CegarLoopForPetriNet]: 312 programPoint places, 13 predicate places. [2024-11-07 15:40:20,390 INFO L471 AbstractCegarLoop]: Abstraction has has 325 places, 674 transitions, 3907 flow [2024-11-07 15:40:20,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 235.16666666666666) internal successors, (1411), 6 states have internal predecessors, (1411), 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 15:40:20,391 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:20,391 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:20,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 15:40:20,391 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-07 15:40:20,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:20,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1309253688, now seen corresponding path program 1 times [2024-11-07 15:40:20,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:20,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185310227] [2024-11-07 15:40:20,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:20,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:20,800 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 15:40:20,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:20,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185310227] [2024-11-07 15:40:20,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185310227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:20,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:40:20,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:40:20,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452698778] [2024-11-07 15:40:20,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:20,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:40:20,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:20,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:40:20,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:40:21,052 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 327 [2024-11-07 15:40:21,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 674 transitions, 3907 flow. Second operand has 6 states, 6 states have (on average 234.16666666666666) internal successors, (1405), 6 states have internal predecessors, (1405), 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 15:40:21,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:21,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 327 [2024-11-07 15:40:21,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand