./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec1_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec1_product24.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bcf02459061acfdf5a11fb9ee5e832193100590b0367d937f266d29520f326a3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:39:15,720 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:39:15,812 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:39:15,818 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:39:15,820 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:39:15,858 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:39:15,860 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:39:15,860 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:39:15,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:39:15,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:39:15,862 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:39:15,863 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:39:15,863 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:39:15,863 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:39:15,864 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:39:15,866 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:39:15,866 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:39:15,866 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:39:15,866 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:39:15,867 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:39:15,867 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:39:15,871 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:39:15,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:39:15,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:39:15,872 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:39:15,873 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:39:15,873 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:39:15,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:39:15,873 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:39:15,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:39:15,874 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:39:15,874 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:39:15,874 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:39:15,874 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:39:15,875 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:39:15,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:39:15,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:39:15,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:39:15,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:39:15,877 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:39:15,878 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:39:15,878 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:39:15,879 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:39:15,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:39:15,879 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:39:15,880 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:39:15,880 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:39:15,880 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bcf02459061acfdf5a11fb9ee5e832193100590b0367d937f266d29520f326a3 [2024-11-09 05:39:16,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:39:16,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:39:16,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:39:16,169 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:39:16,169 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:39:16,170 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/product-lines/elevator_spec1_product24.cil.c Unable to find full path for "g++" [2024-11-09 05:39:18,237 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:39:18,604 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:39:18,606 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/sv-benchmarks/c/product-lines/elevator_spec1_product24.cil.c [2024-11-09 05:39:18,625 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/data/d664b4722/f91c346518af4aa9b9f7d9582c24c369/FLAG2209feea3 [2024-11-09 05:39:18,644 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/data/d664b4722/f91c346518af4aa9b9f7d9582c24c369 [2024-11-09 05:39:18,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:39:18,650 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:39:18,651 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:39:18,652 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:39:18,657 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:39:18,657 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:39:18" (1/1) ... [2024-11-09 05:39:18,658 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@123e5a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:39:18, skipping insertion in model container [2024-11-09 05:39:18,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:39:18" (1/1) ... [2024-11-09 05:39:18,755 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:39:19,038 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/sv-benchmarks/c/product-lines/elevator_spec1_product24.cil.c[11232,11245] [2024-11-09 05:39:19,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:39:19,461 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:39:19,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-09 05:39:19,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [414] [2024-11-09 05:39:19,475 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [423] [2024-11-09 05:39:19,475 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [787] [2024-11-09 05:39:19,475 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1459] [2024-11-09 05:39:19,475 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3107] [2024-11-09 05:39:19,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [3198] [2024-11-09 05:39:19,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3379] [2024-11-09 05:39:19,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3392] [2024-11-09 05:39:19,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3510] [2024-11-09 05:39:19,527 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/sv-benchmarks/c/product-lines/elevator_spec1_product24.cil.c[11232,11245] [2024-11-09 05:39:19,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:39:19,720 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:39:19,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:39:19 WrapperNode [2024-11-09 05:39:19,721 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:39:19,723 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:39:19,723 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:39:19,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:39:19,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:39:19" (1/1) ... [2024-11-09 05:39:19,756 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:39:19" (1/1) ... [2024-11-09 05:39:19,817 INFO L138 Inliner]: procedures = 98, calls = 354, calls flagged for inlining = 27, calls inlined = 23, statements flattened = 924 [2024-11-09 05:39:19,818 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:39:19,819 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:39:19,819 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:39:19,819 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:39:19,831 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:39:19" (1/1) ... [2024-11-09 05:39:19,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:39:19" (1/1) ... [2024-11-09 05:39:19,838 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:39:19" (1/1) ... [2024-11-09 05:39:19,839 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:39:19" (1/1) ... [2024-11-09 05:39:19,863 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:39:19" (1/1) ... [2024-11-09 05:39:19,876 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:39:19" (1/1) ... [2024-11-09 05:39:19,881 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:39:19" (1/1) ... [2024-11-09 05:39:19,890 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:39:19" (1/1) ... [2024-11-09 05:39:19,906 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:39:19,909 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:39:19,912 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:39:19,913 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:39:19,914 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:39:19" (1/1) ... [2024-11-09 05:39:19,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:39:19,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:39:19,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:39:19,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:39:19,993 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-09 05:39:19,993 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-09 05:39:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-09 05:39:19,994 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-09 05:39:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-09 05:39:19,994 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-09 05:39:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-09 05:39:19,994 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-09 05:39:19,995 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-09 05:39:19,995 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-09 05:39:19,995 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-09 05:39:19,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-09 05:39:19,995 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-09 05:39:19,995 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-09 05:39:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-09 05:39:19,996 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-09 05:39:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-09 05:39:19,996 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-09 05:39:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-09 05:39:19,996 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-09 05:39:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2024-11-09 05:39:19,997 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2024-11-09 05:39:19,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:39:19,997 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-09 05:39:19,997 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-09 05:39:19,997 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-09 05:39:19,999 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-09 05:39:19,999 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-09 05:39:20,000 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-09 05:39:20,000 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-09 05:39:20,000 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-09 05:39:20,001 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-09 05:39:20,001 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-09 05:39:20,001 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-09 05:39:20,001 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-09 05:39:20,001 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-09 05:39:20,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-09 05:39:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-09 05:39:20,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-09 05:39:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-09 05:39:20,002 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-09 05:39:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-09 05:39:20,003 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-09 05:39:20,003 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-09 05:39:20,003 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-09 05:39:20,003 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-09 05:39:20,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-09 05:39:20,004 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-09 05:39:20,004 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-09 05:39:20,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:39:20,005 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-09 05:39:20,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-09 05:39:20,006 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2024-11-09 05:39:20,006 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2024-11-09 05:39:20,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:39:20,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:39:20,007 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-09 05:39:20,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-09 05:39:20,007 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2024-11-09 05:39:20,007 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2024-11-09 05:39:20,235 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:39:20,238 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:39:21,784 INFO L? ?]: Removed 473 outVars from TransFormulas that were not future-live. [2024-11-09 05:39:21,785 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:39:22,881 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:39:22,881 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:39:22,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:39:22 BoogieIcfgContainer [2024-11-09 05:39:22,882 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:39:22,884 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:39:22,884 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:39:22,887 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:39:22,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:39:18" (1/3) ... [2024-11-09 05:39:22,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@272cd270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:39:22, skipping insertion in model container [2024-11-09 05:39:22,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:39:19" (2/3) ... [2024-11-09 05:39:22,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@272cd270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:39:22, skipping insertion in model container [2024-11-09 05:39:22,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:39:22" (3/3) ... [2024-11-09 05:39:22,891 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product24.cil.c [2024-11-09 05:39:22,909 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:39:22,909 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:39:22,991 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:39:22,999 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=FINITE_AUTOMATA, 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;@33e6bec1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:39:23,000 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:39:23,006 INFO L276 IsEmpty]: Start isEmpty. Operand has 413 states, 275 states have (on average 1.5672727272727274) internal successors, (431), 298 states have internal predecessors, (431), 108 states have call successors, (108), 28 states have call predecessors, (108), 28 states have return successors, (108), 101 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-09 05:39:23,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 05:39:23,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:39:23,020 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:39:23,020 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:39:23,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:39:23,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1683235583, now seen corresponding path program 1 times [2024-11-09 05:39:23,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:39:23,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102287216] [2024-11-09 05:39:23,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:39:23,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:39:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:39:24,164 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:39:24,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:39:24,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102287216] [2024-11-09 05:39:24,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102287216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:39:24,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:39:24,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 05:39:24,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816463208] [2024-11-09 05:39:24,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:39:24,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:39:24,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:39:24,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:39:24,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:39:24,211 INFO L87 Difference]: Start difference. First operand has 413 states, 275 states have (on average 1.5672727272727274) internal successors, (431), 298 states have internal predecessors, (431), 108 states have call successors, (108), 28 states have call predecessors, (108), 28 states have return successors, (108), 101 states have call predecessors, (108), 108 states have call successors, (108) Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 6 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-09 05:39:27,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:39:27,063 INFO L93 Difference]: Finished difference Result 1329 states and 2129 transitions. [2024-11-09 05:39:27,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:39:27,067 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 6 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 54 [2024-11-09 05:39:27,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:39:27,090 INFO L225 Difference]: With dead ends: 1329 [2024-11-09 05:39:27,091 INFO L226 Difference]: Without dead ends: 933 [2024-11-09 05:39:27,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:39:27,108 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 1299 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 2009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:39:27,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1373 Valid, 1021 Invalid, 2009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-09 05:39:27,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2024-11-09 05:39:27,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 846. [2024-11-09 05:39:27,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 589 states have (on average 1.5823429541595926) internal successors, (932), 619 states have internal predecessors, (932), 207 states have call successors, (207), 48 states have call predecessors, (207), 49 states have return successors, (209), 191 states have call predecessors, (209), 202 states have call successors, (209) [2024-11-09 05:39:27,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1348 transitions. [2024-11-09 05:39:27,297 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1348 transitions. Word has length 54 [2024-11-09 05:39:27,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:39:27,299 INFO L471 AbstractCegarLoop]: Abstraction has 846 states and 1348 transitions. [2024-11-09 05:39:27,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 6 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-09 05:39:27,299 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1348 transitions. [2024-11-09 05:39:27,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-09 05:39:27,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:39:27,315 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-09 05:39:27,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:39:27,316 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:39:27,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:39:27,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1595624757, now seen corresponding path program 1 times [2024-11-09 05:39:27,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:39:27,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431871794] [2024-11-09 05:39:27,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:39:27,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:39:27,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:39:28,104 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:39:28,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:39:28,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431871794] [2024-11-09 05:39:28,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431871794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:39:28,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:39:28,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 05:39:28,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087896443] [2024-11-09 05:39:28,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:39:28,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:39:28,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:39:28,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:39:28,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:39:28,109 INFO L87 Difference]: Start difference. First operand 846 states and 1348 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-09 05:39:30,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:39:30,867 INFO L93 Difference]: Finished difference Result 2624 states and 4232 transitions. [2024-11-09 05:39:30,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:39:30,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 99 [2024-11-09 05:39:30,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:39:30,914 INFO L225 Difference]: With dead ends: 2624 [2024-11-09 05:39:30,914 INFO L226 Difference]: Without dead ends: 1802 [2024-11-09 05:39:30,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-09 05:39:30,919 INFO L432 NwaCegarLoop]: 387 mSDtfsCounter, 1229 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 2410 mSolverCounterSat, 471 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 2881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 471 IncrementalHoareTripleChecker+Valid, 2410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:39:30,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 1659 Invalid, 2881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [471 Valid, 2410 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-09 05:39:30,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2024-11-09 05:39:31,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1715. [2024-11-09 05:39:31,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1206 states have (on average 1.5887230514096187) internal successors, (1916), 1262 states have internal predecessors, (1916), 409 states have call successors, (409), 92 states have call predecessors, (409), 99 states have return successors, (436), 384 states have call predecessors, (436), 404 states have call successors, (436) [2024-11-09 05:39:31,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2761 transitions. [2024-11-09 05:39:31,068 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2761 transitions. Word has length 99 [2024-11-09 05:39:31,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:39:31,070 INFO L471 AbstractCegarLoop]: Abstraction has 1715 states and 2761 transitions. [2024-11-09 05:39:31,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-09 05:39:31,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2761 transitions. [2024-11-09 05:39:31,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 05:39:31,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:39:31,079 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-09 05:39:31,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:39:31,080 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:39:31,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:39:31,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1976577656, now seen corresponding path program 1 times [2024-11-09 05:39:31,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:39:31,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893607252] [2024-11-09 05:39:31,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:39:31,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:39:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:39:31,628 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:39:31,628 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:39:31,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893607252] [2024-11-09 05:39:31,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893607252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:39:31,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:39:31,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 05:39:31,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439961576] [2024-11-09 05:39:31,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:39:31,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:39:31,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:39:31,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:39:31,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:39:31,631 INFO L87 Difference]: Start difference. First operand 1715 states and 2761 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-09 05:39:32,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:39:32,323 INFO L93 Difference]: Finished difference Result 1814 states and 2923 transitions. [2024-11-09 05:39:32,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:39:32,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 103 [2024-11-09 05:39:32,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:39:32,338 INFO L225 Difference]: With dead ends: 1814 [2024-11-09 05:39:32,338 INFO L226 Difference]: Without dead ends: 1799 [2024-11-09 05:39:32,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:39:32,341 INFO L432 NwaCegarLoop]: 591 mSDtfsCounter, 699 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:39:32,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1598 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:39:32,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2024-11-09 05:39:32,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1721. [2024-11-09 05:39:32,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1212 states have (on average 1.5858085808580857) internal successors, (1922), 1268 states have internal predecessors, (1922), 409 states have call successors, (409), 92 states have call predecessors, (409), 99 states have return successors, (436), 384 states have call predecessors, (436), 404 states have call successors, (436) [2024-11-09 05:39:32,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2767 transitions. [2024-11-09 05:39:32,479 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2767 transitions. Word has length 103 [2024-11-09 05:39:32,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:39:32,480 INFO L471 AbstractCegarLoop]: Abstraction has 1721 states and 2767 transitions. [2024-11-09 05:39:32,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-09 05:39:32,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2767 transitions. [2024-11-09 05:39:32,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 05:39:32,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:39:32,484 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-09 05:39:32,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:39:32,484 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:39:32,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:39:32,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1405234550, now seen corresponding path program 1 times [2024-11-09 05:39:32,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:39:32,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970898717] [2024-11-09 05:39:32,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:39:32,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:39:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:39:33,059 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:39:33,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:39:33,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970898717] [2024-11-09 05:39:33,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970898717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:39:33,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:39:33,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 05:39:33,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56007317] [2024-11-09 05:39:33,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:39:33,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:39:33,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:39:33,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:39:33,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:39:33,063 INFO L87 Difference]: Start difference. First operand 1721 states and 2767 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 5 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 5 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-09 05:39:36,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:39:36,906 INFO L93 Difference]: Finished difference Result 4703 states and 7561 transitions. [2024-11-09 05:39:36,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 05:39:36,907 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 5 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 5 states have call predecessors, (20), 4 states have call successors, (20) Word has length 107 [2024-11-09 05:39:36,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:39:36,928 INFO L225 Difference]: With dead ends: 4703 [2024-11-09 05:39:36,928 INFO L226 Difference]: Without dead ends: 3005 [2024-11-09 05:39:36,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-11-09 05:39:36,941 INFO L432 NwaCegarLoop]: 557 mSDtfsCounter, 1405 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 4431 mSolverCounterSat, 669 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 2305 SdHoareTripleChecker+Invalid, 5100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 669 IncrementalHoareTripleChecker+Valid, 4431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:39:36,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 2305 Invalid, 5100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [669 Valid, 4431 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-09 05:39:36,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2024-11-09 05:39:37,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 2810. [2024-11-09 05:39:37,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2810 states, 1930 states have (on average 1.560103626943005) internal successors, (3011), 2029 states have internal predecessors, (3011), 714 states have call successors, (714), 145 states have call predecessors, (714), 165 states have return successors, (761), 679 states have call predecessors, (761), 709 states have call successors, (761) [2024-11-09 05:39:37,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 4486 transitions. [2024-11-09 05:39:37,196 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 4486 transitions. Word has length 107 [2024-11-09 05:39:37,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:39:37,196 INFO L471 AbstractCegarLoop]: Abstraction has 2810 states and 4486 transitions. [2024-11-09 05:39:37,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 5 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 5 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-09 05:39:37,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 4486 transitions. [2024-11-09 05:39:37,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 05:39:37,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:39:37,202 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-09 05:39:37,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:39:37,203 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:39:37,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:39:37,206 INFO L85 PathProgramCache]: Analyzing trace with hash 771577871, now seen corresponding path program 1 times [2024-11-09 05:39:37,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:39:37,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555027260] [2024-11-09 05:39:37,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:39:37,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:39:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:39:37,830 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:39:37,831 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:39:37,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555027260] [2024-11-09 05:39:37,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555027260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:39:37,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:39:37,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 05:39:37,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297668412] [2024-11-09 05:39:37,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:39:37,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:39:37,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:39:37,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:39:37,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-09 05:39:37,834 INFO L87 Difference]: Start difference. First operand 2810 states and 4486 transitions. Second operand has 13 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-09 05:39:44,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:39:44,194 INFO L93 Difference]: Finished difference Result 3203 states and 5085 transitions. [2024-11-09 05:39:44,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 05:39:44,194 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) Word has length 108 [2024-11-09 05:39:44,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:39:44,219 INFO L225 Difference]: With dead ends: 3203 [2024-11-09 05:39:44,220 INFO L226 Difference]: Without dead ends: 3186 [2024-11-09 05:39:44,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=260, Invalid=1380, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 05:39:44,225 INFO L432 NwaCegarLoop]: 541 mSDtfsCounter, 2522 mSDsluCounter, 3498 mSDsCounter, 0 mSdLazyCounter, 8562 mSolverCounterSat, 1480 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2551 SdHoareTripleChecker+Valid, 4039 SdHoareTripleChecker+Invalid, 10042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1480 IncrementalHoareTripleChecker+Valid, 8562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:39:44,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2551 Valid, 4039 Invalid, 10042 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1480 Valid, 8562 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-09 05:39:44,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2024-11-09 05:39:44,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 2998. [2024-11-09 05:39:44,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2998 states, 2072 states have (on average 1.5608108108108107) internal successors, (3234), 2169 states have internal predecessors, (3234), 731 states have call successors, (731), 175 states have call predecessors, (731), 194 states have return successors, (782), 697 states have call predecessors, (782), 726 states have call successors, (782) [2024-11-09 05:39:44,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2998 states to 2998 states and 4747 transitions. [2024-11-09 05:39:44,523 INFO L78 Accepts]: Start accepts. Automaton has 2998 states and 4747 transitions. Word has length 108 [2024-11-09 05:39:44,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:39:44,524 INFO L471 AbstractCegarLoop]: Abstraction has 2998 states and 4747 transitions. [2024-11-09 05:39:44,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-09 05:39:44,524 INFO L276 IsEmpty]: Start isEmpty. Operand 2998 states and 4747 transitions. [2024-11-09 05:39:44,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-09 05:39:44,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:39:44,527 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:39:44,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:39:44,528 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:39:44,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:39:44,529 INFO L85 PathProgramCache]: Analyzing trace with hash 539619335, now seen corresponding path program 1 times [2024-11-09 05:39:44,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:39:44,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448969192] [2024-11-09 05:39:44,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:39:44,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:39:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:39:48,719 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:39:48,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:39:48,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448969192] [2024-11-09 05:39:48,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448969192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:39:48,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129984562] [2024-11-09 05:39:48,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:39:48,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:39:48,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:39:48,722 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:39:48,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:39:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:39:49,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 2015 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:39:49,209 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:39:49,334 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:39:49,334 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:39:49,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129984562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:39:49,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:39:49,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [26] total 28 [2024-11-09 05:39:49,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94681338] [2024-11-09 05:39:49,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:39:49,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:39:49,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:39:49,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:39:49,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2024-11-09 05:39:49,337 INFO L87 Difference]: Start difference. First operand 2998 states and 4747 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-09 05:39:49,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:39:49,725 INFO L93 Difference]: Finished difference Result 3027 states and 4786 transitions. [2024-11-09 05:39:49,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:39:49,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 115 [2024-11-09 05:39:49,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:39:49,747 INFO L225 Difference]: With dead ends: 3027 [2024-11-09 05:39:49,747 INFO L226 Difference]: Without dead ends: 3012 [2024-11-09 05:39:49,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2024-11-09 05:39:49,751 INFO L432 NwaCegarLoop]: 599 mSDtfsCounter, 0 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:39:49,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1787 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:39:49,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2024-11-09 05:39:50,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 3012. [2024-11-09 05:39:50,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3012 states, 2086 states have (on average 1.5570469798657718) internal successors, (3248), 2183 states have internal predecessors, (3248), 731 states have call successors, (731), 175 states have call predecessors, (731), 194 states have return successors, (782), 697 states have call predecessors, (782), 726 states have call successors, (782) [2024-11-09 05:39:50,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3012 states to 3012 states and 4761 transitions. [2024-11-09 05:39:50,107 INFO L78 Accepts]: Start accepts. Automaton has 3012 states and 4761 transitions. Word has length 115 [2024-11-09 05:39:50,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:39:50,108 INFO L471 AbstractCegarLoop]: Abstraction has 3012 states and 4761 transitions. [2024-11-09 05:39:50,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-09 05:39:50,108 INFO L276 IsEmpty]: Start isEmpty. Operand 3012 states and 4761 transitions. [2024-11-09 05:39:50,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-09 05:39:50,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:39:50,112 INFO L215 NwaCegarLoop]: trace histogram [7, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:39:50,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:39:50,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 05:39:50,314 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:39:50,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:39:50,314 INFO L85 PathProgramCache]: Analyzing trace with hash -847024281, now seen corresponding path program 1 times [2024-11-09 05:39:50,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:39:50,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565126716] [2024-11-09 05:39:50,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:39:50,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:39:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:39:52,445 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-09 05:39:52,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:39:52,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565126716] [2024-11-09 05:39:52,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565126716] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:39:52,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522204382] [2024-11-09 05:39:52,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:39:52,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:39:52,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:39:52,449 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:39:52,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81a960c6-2a55-45b8-bdd0-ed606e1ac8db/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:39:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:39:52,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 2069 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 05:39:52,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:39:53,847 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 05:39:53,847 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:40:04,440 WARN L286 SmtUtils]: Spent 5.70s on a formula simplification. DAG size of input: 2228 DAG size of output: 10 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2024-11-09 05:42:13,886 WARN L286 SmtUtils]: Spent 2.15m on a formula simplification. DAG size of input: 1439 DAG size of output: 49 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2024-11-09 05:44:22,223 WARN L286 SmtUtils]: Spent 2.13m on a formula simplification. DAG size of input: 1439 DAG size of output: 49 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2024-11-09 05:44:29,792 WARN L286 SmtUtils]: Spent 6.73s on a formula simplification. DAG size of input: 2228 DAG size of output: 10 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2024-11-09 05:44:29,849 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-09 05:44:29,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522204382] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:44:29,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [820327769] [2024-11-09 05:44:29,874 INFO L159 IcfgInterpreter]: Started Sifa with 115 locations of interest [2024-11-09 05:44:29,875 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:44:29,879 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:44:29,884 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:44:29,885 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:44:53,026 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 514 for LOIs [2024-11-09 05:44:53,694 INFO L197 IcfgInterpreter]: Interpreting procedure cleanup with input of size 590 for LOIs [2024-11-09 05:45:43,648 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 590 for LOIs [2024-11-09 05:45:59,318 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift__wrappee__executivefloor with input of size 574 for LOIs [2024-11-09 05:46:18,536 INFO L197 IcfgInterpreter]: Interpreting procedure stopRequestedInDirection with input of size 457 for LOIs [2024-11-09 05:46:25,750 INFO L197 IcfgInterpreter]: Interpreting procedure isExecutiveFloorCalling with input of size 458 for LOIs [2024-11-09 05:46:33,424 INFO L197 IcfgInterpreter]: Interpreting procedure isFloorCalling with input of size 23 for LOIs [2024-11-09 05:46:33,445 INFO L197 IcfgInterpreter]: Interpreting procedure areDoorsOpen with input of size 441 for LOIs [2024-11-09 05:46:33,710 INFO L197 IcfgInterpreter]: Interpreting procedure getCurrentFloorID with input of size 22 for LOIs [2024-11-09 05:46:33,713 INFO L197 IcfgInterpreter]: Interpreting procedure bigMacCall with input of size 595 for LOIs [2024-11-09 05:46:45,609 INFO L197 IcfgInterpreter]: Interpreting procedure isBlocked with input of size 491 for LOIs [2024-11-09 05:46:46,344 INFO L197 IcfgInterpreter]: Interpreting procedure continueInDirection with input of size 465 for LOIs [2024-11-09 05:46:49,656 INFO L197 IcfgInterpreter]: Interpreting procedure isTopFloor with input of size 461 for LOIs [2024-11-09 05:46:49,947 INFO L197 IcfgInterpreter]: Interpreting procedure angelinaCall with input of size 558 for LOIs [2024-11-09 05:46:59,716 INFO L197 IcfgInterpreter]: Interpreting procedure initPersonOnFloor with input of size 650 for LOIs [2024-11-09 05:47:03,616 INFO L197 IcfgInterpreter]: Interpreting procedure getOrigin with input of size 527 for LOIs [2024-11-09 05:47:05,384 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:47:26,065 WARN L286 SmtUtils]: Spent 6.39s on a formula simplification that was a NOOP. DAG size: 595 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:47:32,496 WARN L286 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 527 DAG size of output: 524 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:47:42,078 WARN L286 SmtUtils]: Spent 8.60s on a formula simplification. DAG size of input: 561 DAG size of output: 531 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:47:48,785 WARN L286 SmtUtils]: Spent 6.39s on a formula simplification that was a NOOP. DAG size: 597 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:47:55,528 WARN L286 SmtUtils]: Spent 6.41s on a formula simplification that was a NOOP. DAG size: 597 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:48:13,864 WARN L286 SmtUtils]: Spent 16.75s on a formula simplification. DAG size of input: 650 DAG size of output: 610 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:48:51,560 WARN L286 SmtUtils]: Spent 5.51s on a formula simplification that was a NOOP. DAG size: 590 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:49:01,181 WARN L286 SmtUtils]: Spent 5.50s on a formula simplification that was a NOOP. DAG size: 592 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:49:07,134 WARN L286 SmtUtils]: Spent 5.54s on a formula simplification that was a NOOP. DAG size: 592 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:49:12,767 WARN L286 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 574 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:49:23,203 WARN L286 SmtUtils]: Spent 9.66s on a formula simplification. DAG size of input: 458 DAG size of output: 458 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:49:29,803 WARN L286 SmtUtils]: Spent 5.39s on a formula simplification that was a NOOP. DAG size: 580 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:49:35,617 WARN L286 SmtUtils]: Spent 5.38s on a formula simplification that was a NOOP. DAG size: 580 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:49:42,186 WARN L286 SmtUtils]: Spent 5.36s on a formula simplification that was a NOOP. DAG size: 586 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:49:48,148 WARN L286 SmtUtils]: Spent 5.37s on a formula simplification that was a NOOP. DAG size: 586 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:49:54,062 WARN L286 SmtUtils]: Spent 5.39s on a formula simplification that was a NOOP. DAG size: 586 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:49:59,964 WARN L286 SmtUtils]: Spent 5.35s on a formula simplification that was a NOOP. DAG size: 586 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:50:05,779 WARN L286 SmtUtils]: Spent 5.35s on a formula simplification that was a NOOP. DAG size: 584 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:50:36,950 WARN L286 SmtUtils]: Spent 5.47s on a formula simplification that was a NOOP. DAG size: 594 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:50:42,954 WARN L286 SmtUtils]: Spent 5.44s on a formula simplification that was a NOOP. DAG size: 594 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:51:10,084 WARN L286 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 617 DAG size of output: 615 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)