./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec1_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec1_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E --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 b90339f9090766921b1c16763101e1e0bf56713d98b802bfaa51b02dabc40a61 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:09:58,396 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:09:58,488 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:09:58,497 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:09:58,498 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:09:58,533 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:09:58,535 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:09:58,536 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:09:58,536 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:09:58,537 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:09:58,538 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:09:58,538 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:09:58,538 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:09:58,538 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:09:58,538 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:09:58,538 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:09:58,538 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:09:58,539 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:09:58,539 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:09:58,539 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:09:58,539 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:09:58,540 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:09:58,540 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:09:58,540 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:09:58,540 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:09:58,540 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:09:58,541 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:09:58,541 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:09:58,541 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:09:58,541 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:09:58,541 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:09:58,542 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:09:58,542 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:09:58,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:09:58,542 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:09:58,542 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:09:58,543 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:09:58,543 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:09:58,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:09:58,543 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:09:58,544 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:09:58,544 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:09:58,544 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:09:58,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:09:58,544 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:09:58,544 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:09:58,544 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:09:58,544 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E 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 -> b90339f9090766921b1c16763101e1e0bf56713d98b802bfaa51b02dabc40a61 [2024-11-14 04:09:58,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:09:58,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:09:58,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:09:58,861 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:09:58,863 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:09:58,865 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/elevator_spec1_product27.cil.c Unable to find full path for "g++" [2024-11-14 04:10:00,737 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:10:01,147 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:10:01,150 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/sv-benchmarks/c/product-lines/elevator_spec1_product27.cil.c [2024-11-14 04:10:01,180 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/data/1eb983dd5/65326515586f4033a3fbada7f57ed7a7/FLAGc65735b97 [2024-11-14 04:10:01,203 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/data/1eb983dd5/65326515586f4033a3fbada7f57ed7a7 [2024-11-14 04:10:01,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:10:01,207 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:10:01,209 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:10:01,210 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:10:01,214 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:10:01,216 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:10:01" (1/1) ... [2024-11-14 04:10:01,217 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436c24da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:01, skipping insertion in model container [2024-11-14 04:10:01,217 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:10:01" (1/1) ... [2024-11-14 04:10:01,293 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:10:01,774 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_f185557e-a369-4249-a70b-e82d13f0909c/sv-benchmarks/c/product-lines/elevator_spec1_product27.cil.c[35415,35428] [2024-11-14 04:10:01,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:10:01,987 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:10:01,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-14 04:10:02,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [412] [2024-11-14 04:10:02,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [447] [2024-11-14 04:10:02,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [567] [2024-11-14 04:10:02,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1239] [2024-11-14 04:10:02,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1252] [2024-11-14 04:10:02,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1618] [2024-11-14 04:10:02,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [1627] [2024-11-14 04:10:02,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1813] [2024-11-14 04:10:02,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1905] [2024-11-14 04:10:02,105 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_f185557e-a369-4249-a70b-e82d13f0909c/sv-benchmarks/c/product-lines/elevator_spec1_product27.cil.c[35415,35428] [2024-11-14 04:10:02,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:10:02,200 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:10:02,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:02 WrapperNode [2024-11-14 04:10:02,202 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:10:02,204 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:10:02,205 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:10:02,205 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:10:02,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:02" (1/1) ... [2024-11-14 04:10:02,236 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:02" (1/1) ... [2024-11-14 04:10:02,320 INFO L138 Inliner]: procedures = 95, calls = 343, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 1150 [2024-11-14 04:10:02,320 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:10:02,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:10:02,321 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:10:02,321 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:10:02,330 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:02" (1/1) ... [2024-11-14 04:10:02,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:02" (1/1) ... [2024-11-14 04:10:02,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:02" (1/1) ... [2024-11-14 04:10:02,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:02" (1/1) ... [2024-11-14 04:10:02,364 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:02" (1/1) ... [2024-11-14 04:10:02,398 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:02" (1/1) ... [2024-11-14 04:10:02,409 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:02" (1/1) ... [2024-11-14 04:10:02,416 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:02" (1/1) ... [2024-11-14 04:10:02,434 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:10:02,435 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:10:02,436 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:10:02,436 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:10:02,437 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:02" (1/1) ... [2024-11-14 04:10:02,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:10:02,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:10:02,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:10:02,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:10:02,542 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2024-11-14 04:10:02,542 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2024-11-14 04:10:02,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:10:02,542 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-14 04:10:02,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-14 04:10:02,542 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-14 04:10:02,543 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-14 04:10:02,543 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-14 04:10:02,543 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-14 04:10:02,543 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-14 04:10:02,544 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-14 04:10:02,544 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-14 04:10:02,544 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-14 04:10:02,544 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-14 04:10:02,545 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-14 04:10:02,545 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-14 04:10:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-14 04:10:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-14 04:10:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-14 04:10:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-14 04:10:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-14 04:10:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-14 04:10:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-14 04:10:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-14 04:10:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-14 04:10:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-14 04:10:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-14 04:10:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-14 04:10:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-14 04:10:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-14 04:10:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-14 04:10:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-14 04:10:02,550 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-14 04:10:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-11-14 04:10:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-11-14 04:10:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-14 04:10:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-14 04:10:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-14 04:10:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-14 04:10:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-14 04:10:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-14 04:10:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-14 04:10:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-14 04:10:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:10:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-14 04:10:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-14 04:10:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-14 04:10:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-14 04:10:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-14 04:10:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-14 04:10:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:10:02,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:10:02,552 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-14 04:10:02,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-14 04:10:02,787 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:10:02,790 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:10:04,410 INFO L? ?]: Removed 461 outVars from TransFormulas that were not future-live. [2024-11-14 04:10:04,410 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:10:05,770 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:10:05,771 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:10:05,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:10:05 BoogieIcfgContainer [2024-11-14 04:10:05,771 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:10:05,778 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:10:05,778 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:10:05,785 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:10:05,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:10:01" (1/3) ... [2024-11-14 04:10:05,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c99048d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:10:05, skipping insertion in model container [2024-11-14 04:10:05,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:02" (2/3) ... [2024-11-14 04:10:05,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c99048d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:10:05, skipping insertion in model container [2024-11-14 04:10:05,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:10:05" (3/3) ... [2024-11-14 04:10:05,788 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product27.cil.c [2024-11-14 04:10:05,812 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:10:05,815 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec1_product27.cil.c that has 26 procedures, 381 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:10:05,911 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:10:05,929 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;@462503c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:10:05,930 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:10:05,936 INFO L276 IsEmpty]: Start isEmpty. Operand has 381 states, 255 states have (on average 1.588235294117647) internal successors, (405), 276 states have internal predecessors, (405), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 93 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-14 04:10:05,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 04:10:06,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:06,000 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] [2024-11-14 04:10:06,001 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:10:06,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:06,009 INFO L85 PathProgramCache]: Analyzing trace with hash 637975764, now seen corresponding path program 1 times [2024-11-14 04:10:06,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:10:06,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747077607] [2024-11-14 04:10:06,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:06,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:10:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:10:06,790 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 04:10:06,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:10:06,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747077607] [2024-11-14 04:10:06,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747077607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:10:06,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:10:06,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:10:06,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846002727] [2024-11-14 04:10:06,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:10:06,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:10:06,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:10:06,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:10:06,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:10:06,830 INFO L87 Difference]: Start difference. First operand has 381 states, 255 states have (on average 1.588235294117647) internal successors, (405), 276 states have internal predecessors, (405), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 93 states have call predecessors, (99), 99 states have call successors, (99) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-14 04:10:07,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:10:07,058 INFO L93 Difference]: Finished difference Result 399 states and 630 transitions. [2024-11-14 04:10:07,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:10:07,063 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 88 [2024-11-14 04:10:07,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:10:07,090 INFO L225 Difference]: With dead ends: 399 [2024-11-14 04:10:07,090 INFO L226 Difference]: Without dead ends: 377 [2024-11-14 04:10:07,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:10:07,099 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:10:07,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 560 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:10:07,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-14 04:10:07,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2024-11-14 04:10:07,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 253 states have (on average 1.5770750988142292) internal successors, (399), 272 states have internal predecessors, (399), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-14 04:10:07,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 592 transitions. [2024-11-14 04:10:07,219 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 592 transitions. Word has length 88 [2024-11-14 04:10:07,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:10:07,222 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 592 transitions. [2024-11-14 04:10:07,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-14 04:10:07,222 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 592 transitions. [2024-11-14 04:10:07,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 04:10:07,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:07,232 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] [2024-11-14 04:10:07,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:10:07,233 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:10:07,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:07,234 INFO L85 PathProgramCache]: Analyzing trace with hash 822412854, now seen corresponding path program 1 times [2024-11-14 04:10:07,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:10:07,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052558529] [2024-11-14 04:10:07,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:07,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:10:07,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:10:08,326 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 04:10:08,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:10:08,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052558529] [2024-11-14 04:10:08,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052558529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:10:08,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:10:08,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 04:10:08,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547833877] [2024-11-14 04:10:08,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:10:08,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:10:08,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:10:08,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:10:08,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:10:08,334 INFO L87 Difference]: Start difference. First operand 377 states and 592 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-14 04:10:11,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:10:11,687 INFO L93 Difference]: Finished difference Result 1148 states and 1837 transitions. [2024-11-14 04:10:11,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 04:10:11,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 89 [2024-11-14 04:10:11,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:10:11,702 INFO L225 Difference]: With dead ends: 1148 [2024-11-14 04:10:11,703 INFO L226 Difference]: Without dead ends: 794 [2024-11-14 04:10:11,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-14 04:10:11,709 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 1153 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 2215 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 2648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 2215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:10:11,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1230 Valid, 1605 Invalid, 2648 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [433 Valid, 2215 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-14 04:10:11,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2024-11-14 04:10:11,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 745. [2024-11-14 04:10:11,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 510 states have (on average 1.592156862745098) internal successors, (812), 543 states have internal predecessors, (812), 189 states have call successors, (189), 45 states have call predecessors, (189), 45 states have return successors, (190), 181 states have call predecessors, (190), 184 states have call successors, (190) [2024-11-14 04:10:11,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1191 transitions. [2024-11-14 04:10:11,835 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1191 transitions. Word has length 89 [2024-11-14 04:10:11,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:10:11,837 INFO L471 AbstractCegarLoop]: Abstraction has 745 states and 1191 transitions. [2024-11-14 04:10:11,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-14 04:10:11,838 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1191 transitions. [2024-11-14 04:10:11,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-14 04:10:11,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:11,846 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] [2024-11-14 04:10:11,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:10:11,847 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:10:11,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:11,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1449943852, now seen corresponding path program 1 times [2024-11-14 04:10:11,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:10:11,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791022100] [2024-11-14 04:10:11,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:11,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:10:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:10:12,474 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 04:10:12,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:10:12,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791022100] [2024-11-14 04:10:12,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791022100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:10:12,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:10:12,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 04:10:12,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177578495] [2024-11-14 04:10:12,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:10:12,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:10:12,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:10:12,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:10:12,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:10:12,481 INFO L87 Difference]: Start difference. First operand 745 states and 1191 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 04:10:13,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:10:13,331 INFO L93 Difference]: Finished difference Result 816 states and 1303 transitions. [2024-11-14 04:10:13,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:10:13,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 93 [2024-11-14 04:10:13,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:10:13,348 INFO L225 Difference]: With dead ends: 816 [2024-11-14 04:10:13,348 INFO L226 Difference]: Without dead ends: 801 [2024-11-14 04:10:13,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:10:13,350 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 656 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1825 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:10:13,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1825 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 04:10:13,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2024-11-14 04:10:13,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 749. [2024-11-14 04:10:13,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 514 states have (on average 1.5875486381322956) internal successors, (816), 547 states have internal predecessors, (816), 189 states have call successors, (189), 45 states have call predecessors, (189), 45 states have return successors, (190), 181 states have call predecessors, (190), 184 states have call successors, (190) [2024-11-14 04:10:13,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1195 transitions. [2024-11-14 04:10:13,440 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1195 transitions. Word has length 93 [2024-11-14 04:10:13,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:10:13,441 INFO L471 AbstractCegarLoop]: Abstraction has 749 states and 1195 transitions. [2024-11-14 04:10:13,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 04:10:13,442 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1195 transitions. [2024-11-14 04:10:13,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-14 04:10:13,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:13,448 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] [2024-11-14 04:10:13,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 04:10:13,448 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:10:13,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:13,449 INFO L85 PathProgramCache]: Analyzing trace with hash -743190196, now seen corresponding path program 1 times [2024-11-14 04:10:13,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:10:13,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484232955] [2024-11-14 04:10:13,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:13,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:10:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:10:13,802 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 04:10:13,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:10:13,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484232955] [2024-11-14 04:10:13,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484232955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:10:13,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:10:13,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:10:13,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656934213] [2024-11-14 04:10:13,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:10:13,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:10:13,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:10:13,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:10:13,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:10:13,805 INFO L87 Difference]: Start difference. First operand 749 states and 1195 transitions. Second operand has 5 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 04:10:13,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:10:13,998 INFO L93 Difference]: Finished difference Result 764 states and 1213 transitions. [2024-11-14 04:10:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:10:13,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) Word has length 98 [2024-11-14 04:10:13,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:10:14,005 INFO L225 Difference]: With dead ends: 764 [2024-11-14 04:10:14,006 INFO L226 Difference]: Without dead ends: 749 [2024-11-14 04:10:14,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:10:14,007 INFO L432 NwaCegarLoop]: 556 mSDtfsCounter, 0 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2222 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:10:14,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2222 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:10:14,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-11-14 04:10:14,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 749. [2024-11-14 04:10:14,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 514 states have (on average 1.583657587548638) internal successors, (814), 547 states have internal predecessors, (814), 189 states have call successors, (189), 45 states have call predecessors, (189), 45 states have return successors, (190), 181 states have call predecessors, (190), 184 states have call successors, (190) [2024-11-14 04:10:14,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1193 transitions. [2024-11-14 04:10:14,100 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1193 transitions. Word has length 98 [2024-11-14 04:10:14,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:10:14,101 INFO L471 AbstractCegarLoop]: Abstraction has 749 states and 1193 transitions. [2024-11-14 04:10:14,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 04:10:14,102 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1193 transitions. [2024-11-14 04:10:14,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-14 04:10:14,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:14,109 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] [2024-11-14 04:10:14,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 04:10:14,109 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:10:14,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:14,110 INFO L85 PathProgramCache]: Analyzing trace with hash -793032574, now seen corresponding path program 1 times [2024-11-14 04:10:14,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:10:14,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802511973] [2024-11-14 04:10:14,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:14,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:10:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:10:18,134 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-14 04:10:18,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:10:18,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802511973] [2024-11-14 04:10:18,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802511973] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:10:18,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425219030] [2024-11-14 04:10:18,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:18,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:10:18,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:10:18,137 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:10:18,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:10:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:10:18,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 1782 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:10:18,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:10:18,758 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 04:10:18,759 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:10:18,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425219030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:10:18,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:10:18,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19] total 21 [2024-11-14 04:10:18,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685615593] [2024-11-14 04:10:18,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:10:18,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:10:18,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:10:18,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:10:18,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2024-11-14 04:10:18,761 INFO L87 Difference]: Start difference. First operand 749 states and 1193 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-14 04:10:18,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:10:18,951 INFO L93 Difference]: Finished difference Result 768 states and 1217 transitions. [2024-11-14 04:10:18,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:10:18,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 105 [2024-11-14 04:10:18,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:10:18,959 INFO L225 Difference]: With dead ends: 768 [2024-11-14 04:10:18,959 INFO L226 Difference]: Without dead ends: 753 [2024-11-14 04:10:18,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2024-11-14 04:10:18,964 INFO L432 NwaCegarLoop]: 556 mSDtfsCounter, 0 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:10:18,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1658 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:10:18,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-11-14 04:10:19,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 753. [2024-11-14 04:10:19,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 518 states have (on average 1.579150579150579) internal successors, (818), 551 states have internal predecessors, (818), 189 states have call successors, (189), 45 states have call predecessors, (189), 45 states have return successors, (190), 181 states have call predecessors, (190), 184 states have call successors, (190) [2024-11-14 04:10:19,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1197 transitions. [2024-11-14 04:10:19,048 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1197 transitions. Word has length 105 [2024-11-14 04:10:19,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:10:19,050 INFO L471 AbstractCegarLoop]: Abstraction has 753 states and 1197 transitions. [2024-11-14 04:10:19,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-14 04:10:19,050 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1197 transitions. [2024-11-14 04:10:19,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-14 04:10:19,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:19,055 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] [2024-11-14 04:10:19,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:10:19,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:10:19,260 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:10:19,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:19,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1449626901, now seen corresponding path program 1 times [2024-11-14 04:10:19,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:10:19,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953063091] [2024-11-14 04:10:19,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:19,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:10:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:10:21,210 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-14 04:10:21,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:10:21,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953063091] [2024-11-14 04:10:21,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953063091] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:10:21,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309133387] [2024-11-14 04:10:21,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:21,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:10:21,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:10:21,213 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:10:21,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f185557e-a369-4249-a70b-e82d13f0909c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 04:10:21,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:10:21,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 1836 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-14 04:10:21,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:10:22,924 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 04:10:22,924 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:10:35,868 WARN L286 SmtUtils]: Spent 7.32s 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) [2024-11-14 04:12:42,072 WARN L286 SmtUtils]: Spent 2.10m 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) [2024-11-14 04:14:51,322 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) [2024-11-14 04:14:56,600 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-14 04:14:56,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309133387] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:14:56,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1419899901] [2024-11-14 04:14:56,639 INFO L159 IcfgInterpreter]: Started Sifa with 105 locations of interest [2024-11-14 04:14:56,639 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:14:56,643 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:14:56,648 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:14:56,649 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:15:13,711 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 436 for LOIs [2024-11-14 04:15:13,961 INFO L197 IcfgInterpreter]: Interpreting procedure cleanup with input of size 582 for LOIs [2024-11-14 04:15:41,256 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 582 for LOIs [2024-11-14 04:16:04,773 INFO L197 IcfgInterpreter]: Interpreting procedure stopRequestedInDirection with input of size 451 for LOIs [2024-11-14 04:16:10,417 INFO L197 IcfgInterpreter]: Interpreting procedure isExecutiveFloorCalling with input of size 452 for LOIs [2024-11-14 04:16:16,870 INFO L197 IcfgInterpreter]: Interpreting procedure isFloorCalling with input of size 27 for LOIs [2024-11-14 04:16:16,890 INFO L197 IcfgInterpreter]: Interpreting procedure getCurrentFloorID with input of size 51 for LOIs [2024-11-14 04:16:16,897 INFO L197 IcfgInterpreter]: Interpreting procedure bigMacCall with input of size 589 for LOIs [2024-11-14 04:16:26,551 INFO L197 IcfgInterpreter]: Interpreting procedure isBlocked with input of size 462 for LOIs [2024-11-14 04:16:26,805 INFO L197 IcfgInterpreter]: Interpreting procedure continueInDirection with input of size 459 for LOIs [2024-11-14 04:16:29,832 INFO L197 IcfgInterpreter]: Interpreting procedure isTopFloor with input of size 455 for LOIs [2024-11-14 04:16:30,094 INFO L197 IcfgInterpreter]: Interpreting procedure angelinaCall with input of size 552 for LOIs [2024-11-14 04:16:39,020 INFO L197 IcfgInterpreter]: Interpreting procedure initPersonOnFloor with input of size 644 for LOIs [2024-11-14 04:16:42,476 INFO L197 IcfgInterpreter]: Interpreting procedure getOrigin with input of size 521 for LOIs [2024-11-14 04:16:43,705 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:16:52,563 WARN L286 SmtUtils]: Spent 5.19s on a formula simplification that was a NOOP. DAG size: 511 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:17:04,021 WARN L286 SmtUtils]: Spent 6.34s on a formula simplification that was a NOOP. DAG size: 589 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:17:10,082 WARN L286 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 521 DAG size of output: 518 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:17:19,647 WARN L286 SmtUtils]: Spent 8.62s on a formula simplification. DAG size of input: 555 DAG size of output: 525 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:17:26,513 WARN L286 SmtUtils]: Spent 6.53s on a formula simplification that was a NOOP. DAG size: 591 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:17:33,422 WARN L286 SmtUtils]: Spent 6.57s on a formula simplification that was a NOOP. DAG size: 591 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:17:51,794 WARN L286 SmtUtils]: Spent 16.69s on a formula simplification. DAG size of input: 644 DAG size of output: 604 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:18:29,101 WARN L286 SmtUtils]: Spent 5.39s on a formula simplification that was a NOOP. DAG size: 582 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:18:39,214 WARN L286 SmtUtils]: Spent 9.04s on a formula simplification. DAG size of input: 452 DAG size of output: 452 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:18:45,734 WARN L286 SmtUtils]: Spent 5.25s on a formula simplification that was a NOOP. DAG size: 588 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:18:52,165 WARN L286 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 588 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:18:59,997 WARN L286 SmtUtils]: Spent 6.28s 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) [2024-11-14 04:19:06,456 WARN L286 SmtUtils]: Spent 5.73s 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) [2024-11-14 04:19:12,753 WARN L286 SmtUtils]: Spent 5.72s 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) [2024-11-14 04:19:18,951 WARN L286 SmtUtils]: Spent 5.61s 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) [2024-11-14 04:19:24,817 WARN L286 SmtUtils]: Spent 5.33s 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) [2024-11-14 04:19:57,486 WARN L286 SmtUtils]: Spent 5.78s on a formula simplification that was a NOOP. DAG size: 602 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:20:04,638 WARN L286 SmtUtils]: Spent 6.21s on a formula simplification that was a NOOP. DAG size: 602 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:20:35,248 WARN L286 SmtUtils]: Spent 6.50s on a formula simplification. DAG size of input: 625 DAG size of output: 623 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:20:42,455 WARN L286 SmtUtils]: Spent 6.43s on a formula simplification. DAG size of input: 627 DAG size of output: 625 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:20:50,003 WARN L286 SmtUtils]: Spent 6.72s on a formula simplification. DAG size of input: 630 DAG size of output: 628 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:20:57,454 WARN L286 SmtUtils]: Spent 6.64s on a formula simplification. DAG size of input: 632 DAG size of output: 630 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:21:05,315 WARN L286 SmtUtils]: Spent 6.96s on a formula simplification. DAG size of input: 634 DAG size of output: 632 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:21:13,086 WARN L286 SmtUtils]: Spent 6.91s on a formula simplification. DAG size of input: 636 DAG size of output: 634 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:21:21,056 WARN L286 SmtUtils]: Spent 7.09s on a formula simplification. DAG size of input: 638 DAG size of output: 621 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:21:28,319 WARN L286 SmtUtils]: Spent 6.40s on a formula simplification. DAG size of input: 638 DAG size of output: 621 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:23:47,860 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11571#(and (= (select |#length| 15) 25) (= 9 (select |#length| 5)) (= (select |#length| 9) 21) (= (select (select |#memory_int| 28) 2) 105) (= 32 (select (select |#memory_int| 28) 0)) (= 30 (select |#length| 7)) (= (select |#valid| 30) 1) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (= (select (select |#memory_int| 31) 2) 105) (= (select |#valid| 15) 1) (= ~executiveFloor~0 4) (<= 0 (+ ~currentFloorID~0 2147483648)) (<= 1 |#StackHeapBarrier|) (= (select (select |#memory_int| 34) 2) 105) (= 32 (select (select |#memory_int| 34) 0)) (= ~floorButtons_3~0 0) (= 10 (select |#length| 16)) (= (select |#length| 33) 4) (= (select |#valid| 26) 1) (= (select (select |#memory_int| 26) 3) 0) (exists ((|v_cleanup_~tmp~6#1_14| Int)) (and (not (= |v_cleanup_~tmp~6#1_14| 0)) (<= 0 (+ |v_cleanup_~tmp~6#1_14| 2147483648)) (<= |v_cleanup_~tmp~6#1_14| 2147483647))) (= (select (select |#memory_int| 20) 2) 0) (= 3 (select |#length| 20)) (= (select |#valid| 35) 1) (= (select |#valid| 9) 1) (= (select (select |#memory_int| 24) 1) 73) (= (select (select |#memory_int| 23) 3) 110) (= 91 (select (select |#memory_int| 18) 0)) (= (select |#length| 12) 25) (= (select (select |#memory_int| 25) 3) 0) (= 91 (select (select |#memory_int| 17) 0)) (= (select (select |#memory_int| 30) 4) 58) (= (select |#valid| 11) 1) (= (select |#valid| 27) 1) (= (select |#valid| 33) 1) (= (select (select |#memory_int| 32) 2) 105) (= 30 (select |#length| 4)) (= (select (select |#memory_int| 29) 2) 105) (= (select |#length| 28) 4) (= 4 (select |#length| 31)) (= (select |#length| 27) 4) (= (select |#length| 22) 3) (<= ~currentFloorID~0 2147483647) (= ~calls_3~0 0) (= 4 (select |#length| 26)) (= 6 (select |#length| 30)) (= ~calls_0~0 0) (= 112 (select (select |#memory_int| 22) 1)) (= (select (select |#memory_int| 17) 2) 93) (= 31 (select |#length| 2)) (= (select (select |#memory_int| 27) 3) 0) (= 76 (select (select |#memory_int| 24) 2)) (= ~head~0.offset 0) (= (select (select |#memory_int| 32) 3) 0) (= 2 (select |#length| 1)) (= (select |#length| 8) 9) (= (select (select |#memory_int| 28) 3) 0) (= (select (select |#memory_int| 29) 3) 0) (= 95 (select (select |#memory_int| 30) 2)) (= 32 (select (select |#memory_int| 30) 0)) (= (select (select |#memory_int| 30) 1) 70) (= 4 (select |#length| 25)) (= (select |#valid| 3) 1) (= (select |#valid| 7) 1) (= (select |#valid| 18) 1) (= ~calls_1~0 0) (= (select |#valid| 22) 1) (= 30 (select |#length| 13)) (= (select (select |#memory_int| 18) 3) 0) (= 2 (select |#length| 36)) (= (select (select |#memory_int| 26) 2) 105) (= (select (select |#memory_int| 34) 1) 37) (= (select (select |#memory_int| 19) 4) 0) (= (select |#valid| 24) 1) (= 30 (select |#length| 10)) (= (select (select |#memory_int| 29) 1) 37) (not (= ~landingButtons_spc1_0~0 0)) (= (select (select |#memory_int| 25) 1) 37) (= (select (select |#memory_int| 17) 3) 0) (= 4 (select |#length| 34)) (= (select |#valid| 12) 1) (= (select |#valid| 32) 1) (= (select (select |#memory_int| 31) 1) 37) (= ~floorButtons_2~0 0) (= (select |#valid| 28) 1) (= (select (select |#memory_int| 18) 2) 32) (= (select (select |#memory_int| 25) 2) 105) (= (select |#length| 17) 4) (= (select (select |#memory_int| 27) 1) 37) (= (select |#length| 35) 4) (= (select |#valid| 4) 1) (= 5 (select |#length| 23)) (= (select (select |#memory_int| 35) 3) 0) (= 119 (select (select |#memory_int| 23) 2)) (= 32 (select (select |#memory_int| 24) 0)) (= 32 (select (select |#memory_int| 26) 0)) (= (select (select |#memory_int| 32) 1) 37) (= (select (select |#memory_int| 28) 1) 37) (<= 0 (+ ~calls_4~0 2147483648)) (= (select (select |#memory_int| 30) 5) 0) (= (select (select |#memory_int| 22) 2) 0) (= (select (select |#memory_int| 20) 1) 105) (= (select (select |#memory_int| 33) 3) 0) (= (select |#valid| 1) 1) (= (select |#valid| 20) 1) (<= ~calls_4~0 2147483647) (= 97 (select (select |#memory_int| 19) 1)) (= ~floorButtons_1~0 0) (= 32 (select (select |#memory_int| 35) 0)) (= (select |#length| 6) 21) (= (select (select |#memory_int| 36) 1) 0) (= (select (select |#memory_int| 23) 0) 100) (= (select |#valid| 21) 1) (= 7 (select |#length| 24)) (= 58 (select (select |#memory_int| 24) 5)) (= ~floorButtons_0~0 0) (= (select (select |#memory_int| 24) 6) 0) (= (select (select |#memory_int| 31) 0) 32) (= (select (select |#memory_int| 33) 1) 37) (= 32 (select (select |#memory_int| 27) 0)) (= (select |#valid| 14) 1) (= 95 (select (select |#memory_int| 24) 3)) (= 9 (select |#length| 14)) (= (select |#valid| 0) 0) (= (select (select |#memory_int| 33) 0) 32) (= (select (select |#memory_int| 35) 1) 37) (= (select |#valid| 25) 1) (= 4 (select |#length| 18)) (= ~head~0.base 0) (= (select |#length| 32) 4) (= 112 (select (select |#memory_int| 24) 4)) (= (select (select |#memory_int| 17) 1) 95) (= (select (select |#memory_int| 34) 3) 0) (= (select |#valid| 2) 1) (= (select |#valid| 36) 1) (= 9 (select |#length| 11)) (= (select |#length| 29) 4) (= (select (select |#memory_int| 1) 0) 48) (= (select |#valid| 23) 1) (= 32 (select (select |#memory_int| 29) 0)) (= (select (select |#memory_int| 26) 1) 37) (= 112 (select (select |#memory_int| 30) 3)) (= (select (select |#memory_int| 23) 4) 0) (= (select |#valid| 19) 1) (= 32 (select (select |#memory_int| 19) 3)) (= (select |#valid| 31) 1) (= (select |#valid| 34) 1) (= (select (select |#memory_int| 33) 2) 105) (= (select (select |#memory_int| 27) 2) 105) (= (select |#valid| 16) 1) (= 111 (select (select |#memory_int| 23) 1)) (= 116 (select (select |#memory_int| 19) 2)) (= (select |#valid| 6) 1) (= (select (select |#memory_int| 20) 0) 37) (= (select (select |#memory_int| 1) 1) 0) (= (select (select |#memory_int| 36) 0) 10) (= ~calls_2~0 0) (= (select |#valid| 29) 1) (= (select (select |#memory_int| 22) 0) 117) (= ~maximumWeight~0 100) (= (select (select |#memory_int| 25) 0) 32) (= (select (select |#memory_int| 31) 3) 0) (= (select |#length| 21) 10) (= (select |#valid| 17) 1) (= 93 (select (select |#memory_int| 18) 1)) (= (select |#valid| 10) 1) (= (select |#valid| 8) 1) (= 32 (select (select |#memory_int| 19) 0)) (= (select |#length| 19) 5) (= (select |#valid| 13) 1) (= ~cleanupTimeShifts~0 12) (= (select (select |#memory_int| 35) 2) 105) (= 32 (select (select |#memory_int| 32) 0)))' at error location [2024-11-14 04:23:47,861 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:23:47,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:23:47,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 12] total 34 [2024-11-14 04:23:47,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286944029] [2024-11-14 04:23:47,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:23:47,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-14 04:23:47,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:23:47,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-14 04:23:47,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=944, Invalid=11938, Unknown=0, NotChecked=0, Total=12882 [2024-11-14 04:23:47,872 INFO L87 Difference]: Start difference. First operand 753 states and 1197 transitions. Second operand has 34 states, 24 states have (on average 6.916666666666667) internal successors, (166), 28 states have internal predecessors, (166), 14 states have call successors, (56), 7 states have call predecessors, (56), 20 states have return successors, (58), 20 states have call predecessors, (58), 13 states have call successors, (58)