./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/mix026.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff1fbad-f13c-40fd-bb89-6f87fb8a9892/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff1fbad-f13c-40fd-bb89-6f87fb8a9892/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff1fbad-f13c-40fd-bb89-6f87fb8a9892/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff1fbad-f13c-40fd-bb89-6f87fb8a9892/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix026.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff1fbad-f13c-40fd-bb89-6f87fb8a9892/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff1fbad-f13c-40fd-bb89-6f87fb8a9892/bin/uautomizer-verify-aQ6SnzHsRB --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 a107688f8a9743f96e4ba7fbbac745d7f444b48f461db6b6c74848593b202e05 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:24:23,734 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:24:23,843 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff1fbad-f13c-40fd-bb89-6f87fb8a9892/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-27 20:24:23,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:24:23,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:24:23,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:24:23,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:24:23,878 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:24:23,879 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:24:23,879 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:24:23,879 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:24:23,879 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:24:23,880 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:24:23,880 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:24:23,880 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:24:23,880 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:24:23,880 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:24:23,880 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:24:23,881 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:24:23,881 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:24:23,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:24:23,881 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:24:23,881 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-27 20:24:23,881 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:24:23,881 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:24:23,882 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:24:23,882 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:24:23,882 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:24:23,882 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:24:23,882 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:24:23,882 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:24:23,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:24:23,883 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:24:23,883 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:24:23,883 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:24:23,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:24:23,883 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:24:23,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:24:23,884 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:24:23,884 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:24:23,884 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:24:23,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:24:23,884 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:24:23,884 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:24:23,885 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:24:23,885 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:24:23,885 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff1fbad-f13c-40fd-bb89-6f87fb8a9892/bin/uautomizer-verify-aQ6SnzHsRB 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 -> a107688f8a9743f96e4ba7fbbac745d7f444b48f461db6b6c74848593b202e05 [2024-11-27 20:24:24,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:24:24,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:24:24,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:24:24,215 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:24:24,217 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:24:24,219 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff1fbad-f13c-40fd-bb89-6f87fb8a9892/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/mix026.oepc.i [2024-11-27 20:24:27,314 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff1fbad-f13c-40fd-bb89-6f87fb8a9892/bin/uautomizer-verify-aQ6SnzHsRB/data/89f046e52/cad56fe605704492907c8d570e3f3e26/FLAG9551dc4c9 [2024-11-27 20:24:27,755 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:24:27,760 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff1fbad-f13c-40fd-bb89-6f87fb8a9892/sv-benchmarks/c/pthread-wmm/mix026.oepc.i [2024-11-27 20:24:27,788 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff1fbad-f13c-40fd-bb89-6f87fb8a9892/bin/uautomizer-verify-aQ6SnzHsRB/data/89f046e52/cad56fe605704492907c8d570e3f3e26/FLAG9551dc4c9 [2024-11-27 20:24:27,916 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff1fbad-f13c-40fd-bb89-6f87fb8a9892/bin/uautomizer-verify-aQ6SnzHsRB/data/89f046e52/cad56fe605704492907c8d570e3f3e26 [2024-11-27 20:24:27,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:24:27,923 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:24:27,924 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:24:27,925 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:24:27,934 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:24:27,935 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:24:27" (1/1) ... [2024-11-27 20:24:27,936 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40ba829c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:27, skipping insertion in model container [2024-11-27 20:24:27,937 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:24:27" (1/1) ... [2024-11-27 20:24:28,008 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:24:28,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:24:28,755 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:24:28,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:24:28,967 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:24:28,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:28 WrapperNode [2024-11-27 20:24:28,968 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:24:28,969 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:24:28,970 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:24:28,970 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:24:28,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:28" (1/1) ... [2024-11-27 20:24:29,014 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:28" (1/1) ... [2024-11-27 20:24:29,076 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 506 [2024-11-27 20:24:29,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:24:29,077 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:24:29,077 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:24:29,077 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:24:29,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:28" (1/1) ... [2024-11-27 20:24:29,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:28" (1/1) ... [2024-11-27 20:24:29,109 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:28" (1/1) ... [2024-11-27 20:24:29,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:28" (1/1) ... [2024-11-27 20:24:29,147 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:28" (1/1) ... [2024-11-27 20:24:29,149 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:28" (1/1) ... [2024-11-27 20:24:29,157 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:28" (1/1) ... [2024-11-27 20:24:29,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:28" (1/1) ... [2024-11-27 20:24:29,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:28" (1/1) ... [2024-11-27 20:24:29,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:24:29,174 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:24:29,175 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:24:29,175 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:24:29,176 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:28" (1/1) ... [2024-11-27 20:24:29,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:24:29,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff1fbad-f13c-40fd-bb89-6f87fb8a9892/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:29,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff1fbad-f13c-40fd-bb89-6f87fb8a9892/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:24:29,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff1fbad-f13c-40fd-bb89-6f87fb8a9892/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:24:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 20:24:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:24:29,264 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-27 20:24:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-27 20:24:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-27 20:24:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-27 20:24:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-27 20:24:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-27 20:24:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-27 20:24:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-27 20:24:29,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 20:24:29,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 20:24:29,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:24:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:24:29,269 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 20:24:29,554 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:24:29,557 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:24:31,757 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 20:24:31,757 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:24:38,294 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:24:38,297 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 20:24:38,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:24:38 BoogieIcfgContainer [2024-11-27 20:24:38,298 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:24:38,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:24:38,301 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:24:38,307 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:24:38,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:24:27" (1/3) ... [2024-11-27 20:24:38,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6966946e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:24:38, skipping insertion in model container [2024-11-27 20:24:38,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:28" (2/3) ... [2024-11-27 20:24:38,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6966946e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:24:38, skipping insertion in model container [2024-11-27 20:24:38,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:24:38" (3/3) ... [2024-11-27 20:24:38,312 INFO L128 eAbstractionObserver]: Analyzing ICFG mix026.oepc.i [2024-11-27 20:24:38,331 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:24:38,334 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix026.oepc.i that has 5 procedures, 413 locations, 1 initial locations, 0 loop locations, and 283 error locations. [2024-11-27 20:24:38,334 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 20:24:38,817 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 20:24:38,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 425 places, 415 transitions, 846 flow [2024-11-27 20:24:39,254 INFO L124 PetriNetUnfolderBase]: 3/411 cut-off events. [2024-11-27 20:24:39,257 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:24:39,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 411 events. 3/411 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 2259 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 373. Up to 2 conditions per place. [2024-11-27 20:24:39,277 INFO L82 GeneralOperation]: Start removeDead. Operand has 425 places, 415 transitions, 846 flow [2024-11-27 20:24:39,322 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 421 places, 411 transitions, 834 flow [2024-11-27 20:24:39,336 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:24:39,360 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;@4af36a1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:24:39,360 INFO L334 AbstractCegarLoop]: Starting to check reachability of 532 error locations. [2024-11-27 20:24:39,379 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:24:39,379 INFO L124 PetriNetUnfolderBase]: 0/47 cut-off events. [2024-11-27 20:24:39,380 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:24:39,380 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:24:39,381 INFO L206 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] [2024-11-27 20:24:39,382 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 528 more)] === [2024-11-27 20:24:39,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:39,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1880563315, now seen corresponding path program 1 times [2024-11-27 20:24:39,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:39,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471952591] [2024-11-27 20:24:39,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:39,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:39,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:39,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:39,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471952591] [2024-11-27 20:24:39,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471952591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:39,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:39,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 20:24:39,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268713429] [2024-11-27 20:24:39,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:39,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:24:39,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:39,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:24:39,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:24:39,765 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 415 [2024-11-27 20:24:39,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 411 transitions, 834 flow. Second operand has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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) [2024-11-27 20:24:39,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:24:39,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 415 [2024-11-27 20:24:39,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:24:51,668 INFO L124 PetriNetUnfolderBase]: 9295/25615 cut-off events. [2024-11-27 20:24:51,668 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2024-11-27 20:24:51,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38383 conditions, 25615 events. 9295/25615 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 1045. Compared 312997 event pairs, 9295 based on Foata normal form. 2193/26115 useless extension candidates. Maximal degree in co-relation 38330. Up to 12451 conditions per place. [2024-11-27 20:24:51,846 INFO L140 encePairwiseOnDemand]: 131/415 looper letters, 24 selfloop transitions, 0 changer transitions 0/125 dead transitions. [2024-11-27 20:24:51,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 125 transitions, 310 flow [2024-11-27 20:24:51,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:24:51,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-27 20:24:51,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 520 transitions. [2024-11-27 20:24:51,863 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6265060240963856 [2024-11-27 20:24:51,865 INFO L175 Difference]: Start difference. First operand has 421 places, 411 transitions, 834 flow. Second operand 2 states and 520 transitions. [2024-11-27 20:24:51,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 125 transitions, 310 flow [2024-11-27 20:24:51,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 125 transitions, 306 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-27 20:24:51,876 INFO L231 Difference]: Finished difference. Result has 135 places, 125 transitions, 258 flow [2024-11-27 20:24:51,878 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=415, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=258, PETRI_PLACES=135, PETRI_TRANSITIONS=125} [2024-11-27 20:24:51,885 INFO L279 CegarLoopForPetriNet]: 421 programPoint places, -286 predicate places. [2024-11-27 20:24:51,885 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 125 transitions, 258 flow [2024-11-27 20:24:51,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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) [2024-11-27 20:24:51,886 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:24:51,886 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:51,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:24:51,887 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 528 more)] === [2024-11-27 20:24:51,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:51,890 INFO L85 PathProgramCache]: Analyzing trace with hash 307164010, now seen corresponding path program 1 times [2024-11-27 20:24:51,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:51,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218319157] [2024-11-27 20:24:51,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:51,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:52,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:52,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:52,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218319157] [2024-11-27 20:24:52,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218319157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:52,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:52,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:24:52,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486166145] [2024-11-27 20:24:52,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:52,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:52,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:52,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:52,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:52,117 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 415 [2024-11-27 20:24:52,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 125 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2024-11-27 20:24:52,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:24:52,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 415 [2024-11-27 20:24:52,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:25:03,410 INFO L124 PetriNetUnfolderBase]: 14145/36893 cut-off events. [2024-11-27 20:25:03,410 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:25:03,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56008 conditions, 36893 events. 14145/36893 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1016. Compared 440529 event pairs, 4445 based on Foata normal form. 0/34591 useless extension candidates. Maximal degree in co-relation 56005. Up to 12700 conditions per place. [2024-11-27 20:25:03,592 INFO L140 encePairwiseOnDemand]: 413/415 looper letters, 42 selfloop transitions, 1 changer transitions 0/141 dead transitions. [2024-11-27 20:25:03,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 141 transitions, 376 flow [2024-11-27 20:25:03,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:25:03,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:25:03,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2024-11-27 20:25:03,595 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.28353413654618476 [2024-11-27 20:25:03,595 INFO L175 Difference]: Start difference. First operand has 135 places, 125 transitions, 258 flow. Second operand 3 states and 353 transitions. [2024-11-27 20:25:03,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 141 transitions, 376 flow [2024-11-27 20:25:03,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 141 transitions, 376 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 20:25:03,599 INFO L231 Difference]: Finished difference. Result has 136 places, 124 transitions, 258 flow [2024-11-27 20:25:03,600 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=415, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=136, PETRI_TRANSITIONS=124} [2024-11-27 20:25:03,601 INFO L279 CegarLoopForPetriNet]: 421 programPoint places, -285 predicate places. [2024-11-27 20:25:03,601 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 124 transitions, 258 flow [2024-11-27 20:25:03,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2024-11-27 20:25:03,601 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:25:03,602 INFO L206 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] [2024-11-27 20:25:03,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:25:03,602 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 528 more)] === [2024-11-27 20:25:03,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:03,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1133741943, now seen corresponding path program 1 times [2024-11-27 20:25:03,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:25:03,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11892605] [2024-11-27 20:25:03,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:03,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:25:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:03,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:25:03,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:25:03,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11892605] [2024-11-27 20:25:03,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11892605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:25:03,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:25:03,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:25:03,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363183299] [2024-11-27 20:25:03,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:25:03,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:25:03,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:03,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:25:03,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:25:03,879 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 415 [2024-11-27 20:25:03,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 124 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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) [2024-11-27 20:25:03,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:25:03,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 415 [2024-11-27 20:25:03,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand