./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec3_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_003a67f8-5cda-40ee-ad06-a265ceba3af7/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_003a67f8-5cda-40ee-ad06-a265ceba3af7/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_003a67f8-5cda-40ee-ad06-a265ceba3af7/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_003a67f8-5cda-40ee-ad06-a265ceba3af7/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec3_product24.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_003a67f8-5cda-40ee-ad06-a265ceba3af7/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_003a67f8-5cda-40ee-ad06-a265ceba3af7/bin/uautomizer-verify-4GaUIPS5ZU --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8333bf118d61dc3e3ddedc658c9d6fef28fa288c9b6abdc361c7a0f5f6e109b7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:07:24,895 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:07:25,014 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_003a67f8-5cda-40ee-ad06-a265ceba3af7/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:07:25,022 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:07:25,023 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:07:25,073 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:07:25,073 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:07:25,074 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:07:25,076 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:07:25,077 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:07:25,078 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:07:25,078 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:07:25,079 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:07:25,079 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:07:25,080 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:07:25,080 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:07:25,081 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:07:25,085 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:07:25,085 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:07:25,089 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:07:25,089 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:07:25,090 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:07:25,090 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:07:25,090 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:07:25,091 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:07:25,091 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:07:25,091 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:07:25,092 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:07:25,092 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:07:25,092 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:07:25,093 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:07:25,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:07:25,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:07:25,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:07:25,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:07:25,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:07:25,098 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:07:25,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:07:25,099 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:07:25,099 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:07:25,099 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:07:25,100 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:07:25,100 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_003a67f8-5cda-40ee-ad06-a265ceba3af7/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_003a67f8-5cda-40ee-ad06-a265ceba3af7/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8333bf118d61dc3e3ddedc658c9d6fef28fa288c9b6abdc361c7a0f5f6e109b7 [2024-10-31 22:07:25,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:07:25,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:07:25,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:07:25,473 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:07:25,474 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:07:25,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_003a67f8-5cda-40ee-ad06-a265ceba3af7/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/product-lines/elevator_spec3_product24.cil.c Unable to find full path for "g++" [2024-10-31 22:07:27,587 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:07:27,975 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:07:27,977 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_003a67f8-5cda-40ee-ad06-a265ceba3af7/sv-benchmarks/c/product-lines/elevator_spec3_product24.cil.c [2024-10-31 22:07:27,999 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_003a67f8-5cda-40ee-ad06-a265ceba3af7/bin/uautomizer-verify-4GaUIPS5ZU/data/3749c9c4f/fdd8d461821a420ca5776e317d1679a0/FLAG5323b344d [2024-10-31 22:07:28,015 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_003a67f8-5cda-40ee-ad06-a265ceba3af7/bin/uautomizer-verify-4GaUIPS5ZU/data/3749c9c4f/fdd8d461821a420ca5776e317d1679a0 [2024-10-31 22:07:28,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:07:28,019 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:07:28,021 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:07:28,021 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:07:28,030 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:07:28,031 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:07:28" (1/1) ... [2024-10-31 22:07:28,034 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c07413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:28, skipping insertion in model container [2024-10-31 22:07:28,035 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:07:28" (1/1) ... [2024-10-31 22:07:28,119 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:07:28,840 WARN L251 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_003a67f8-5cda-40ee-ad06-a265ceba3af7/sv-benchmarks/c/product-lines/elevator_spec3_product24.cil.c[75121,75134] [2024-10-31 22:07:28,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:07:28,860 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:07:28,872 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2024-10-31 22:07:28,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [67] [2024-10-31 22:07:28,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [425] [2024-10-31 22:07:28,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [545] [2024-10-31 22:07:28,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [641] [2024-10-31 22:07:28,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2290] [2024-10-31 22:07:28,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [2951] [2024-10-31 22:07:28,877 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [3138] [2024-10-31 22:07:28,877 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3504] [2024-10-31 22:07:28,878 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3539] [2024-10-31 22:07:29,159 WARN L251 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_003a67f8-5cda-40ee-ad06-a265ceba3af7/sv-benchmarks/c/product-lines/elevator_spec3_product24.cil.c[75121,75134] [2024-10-31 22:07:29,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:07:29,203 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:07:29,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:29 WrapperNode [2024-10-31 22:07:29,204 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:07:29,206 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:07:29,206 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:07:29,206 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:07:29,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:29" (1/1) ... [2024-10-31 22:07:29,271 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:29" (1/1) ... [2024-10-31 22:07:29,379 INFO L138 Inliner]: procedures = 96, calls = 359, calls flagged for inlining = 27, calls inlined = 23, statements flattened = 965 [2024-10-31 22:07:29,380 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:07:29,381 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:07:29,381 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:07:29,381 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:07:29,395 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:29" (1/1) ... [2024-10-31 22:07:29,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:29" (1/1) ... [2024-10-31 22:07:29,411 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:29" (1/1) ... [2024-10-31 22:07:29,476 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-10-31 22:07:29,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:29" (1/1) ... [2024-10-31 22:07:29,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:29" (1/1) ... [2024-10-31 22:07:29,534 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:29" (1/1) ... [2024-10-31 22:07:29,563 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:29" (1/1) ... [2024-10-31 22:07:29,575 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:29" (1/1) ... [2024-10-31 22:07:29,586 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:29" (1/1) ... [2024-10-31 22:07:29,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:07:29,605 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:07:29,605 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:07:29,605 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:07:29,606 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:29" (1/1) ... [2024-10-31 22:07:29,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:07:29,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_003a67f8-5cda-40ee-ad06-a265ceba3af7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:29,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_003a67f8-5cda-40ee-ad06-a265ceba3af7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:29,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_003a67f8-5cda-40ee-ad06-a265ceba3af7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:07:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:07:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-10-31 22:07:29,712 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-10-31 22:07:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2024-10-31 22:07:29,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2024-10-31 22:07:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-10-31 22:07:29,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-10-31 22:07:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-10-31 22:07:29,713 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-10-31 22:07:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-10-31 22:07:29,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-10-31 22:07:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-10-31 22:07:29,714 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-10-31 22:07:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-10-31 22:07:29,714 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-10-31 22:07:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-10-31 22:07:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-10-31 22:07:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-31 22:07:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-31 22:07:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-31 22:07:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-31 22:07:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-31 22:07:29,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-31 22:07:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-10-31 22:07:29,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-10-31 22:07:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-10-31 22:07:29,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-10-31 22:07:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-10-31 22:07:29,719 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-10-31 22:07:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-10-31 22:07:29,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-10-31 22:07:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2024-10-31 22:07:29,720 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2024-10-31 22:07:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-10-31 22:07:29,720 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-10-31 22:07:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2024-10-31 22:07:29,720 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2024-10-31 22:07:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-10-31 22:07:29,721 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-10-31 22:07:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-10-31 22:07:29,721 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-10-31 22:07:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-10-31 22:07:29,722 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-10-31 22:07:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-10-31 22:07:29,722 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-10-31 22:07:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:07:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:07:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:07:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:07:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-31 22:07:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-31 22:07:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-31 22:07:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-31 22:07:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-31 22:07:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-31 22:07:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-31 22:07:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-31 22:07:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-31 22:07:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-31 22:07:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-31 22:07:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-31 22:07:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-31 22:07:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-31 22:07:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-31 22:07:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-10-31 22:07:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-10-31 22:07:29,726 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-10-31 22:07:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-10-31 22:07:29,727 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-10-31 22:07:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-10-31 22:07:29,727 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-10-31 22:07:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-10-31 22:07:29,727 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-10-31 22:07:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2024-10-31 22:07:29,728 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2024-10-31 22:07:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:07:29,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:07:29,729 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-10-31 22:07:29,729 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-10-31 22:07:29,729 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2024-10-31 22:07:29,729 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2024-10-31 22:07:30,029 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:07:30,033 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:07:31,744 INFO L? ?]: Removed 485 outVars from TransFormulas that were not future-live. [2024-10-31 22:07:31,745 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:07:31,785 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:07:31,789 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:07:31,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:31 BoogieIcfgContainer [2024-10-31 22:07:31,790 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:07:31,792 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:07:31,793 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:07:31,797 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:07:31,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:07:28" (1/3) ... [2024-10-31 22:07:31,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@291ba3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:07:31, skipping insertion in model container [2024-10-31 22:07:31,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:29" (2/3) ... [2024-10-31 22:07:31,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@291ba3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:07:31, skipping insertion in model container [2024-10-31 22:07:31,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:31" (3/3) ... [2024-10-31 22:07:31,801 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product24.cil.c [2024-10-31 22:07:31,826 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:07:31,826 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:07:31,938 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:07:31,945 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1f635bea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:07:31,946 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:07:31,954 INFO L276 IsEmpty]: Start isEmpty. Operand has 620 states, 474 states have (on average 1.6582278481012658) internal successors, (786), 494 states have internal predecessors, (786), 115 states have call successors, (115), 29 states have call predecessors, (115), 29 states have return successors, (115), 111 states have call predecessors, (115), 115 states have call successors, (115) [2024-10-31 22:07:31,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-31 22:07:31,974 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:07:31,975 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:31,976 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:07:31,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:31,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1523378071, now seen corresponding path program 1 times [2024-10-31 22:07:31,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:31,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371042074] [2024-10-31 22:07:31,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:31,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:33,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:07:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:33,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:07:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:33,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 22:07:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:33,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:07:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:33,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:07:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:33,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-31 22:07:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:33,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-31 22:07:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:33,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 22:07:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:33,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:07:33,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:33,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371042074] [2024-10-31 22:07:33,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371042074] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:33,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:33,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 22:07:33,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896210126] [2024-10-31 22:07:33,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:33,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:07:33,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:33,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:07:33,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:07:33,961 INFO L87 Difference]: Start difference. First operand has 620 states, 474 states have (on average 1.6582278481012658) internal successors, (786), 494 states have internal predecessors, (786), 115 states have call successors, (115), 29 states have call predecessors, (115), 29 states have return successors, (115), 111 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-31 22:07:45,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:07:45,654 INFO L93 Difference]: Finished difference Result 1512 states and 2577 transitions. [2024-10-31 22:07:45,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:07:45,660 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 67 [2024-10-31 22:07:45,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:07:45,696 INFO L225 Difference]: With dead ends: 1512 [2024-10-31 22:07:45,696 INFO L226 Difference]: Without dead ends: 896 [2024-10-31 22:07:45,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:07:45,711 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 932 mSDsluCounter, 2276 mSDsCounter, 0 mSdLazyCounter, 5368 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 2726 SdHoareTripleChecker+Invalid, 5566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 5368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-10-31 22:07:45,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 2726 Invalid, 5566 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [198 Valid, 5368 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2024-10-31 22:07:45,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2024-10-31 22:07:45,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 623. [2024-10-31 22:07:46,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 477 states have (on average 1.649895178197065) internal successors, (787), 497 states have internal predecessors, (787), 116 states have call successors, (116), 29 states have call predecessors, (116), 29 states have return successors, (115), 110 states have call predecessors, (115), 113 states have call successors, (115) [2024-10-31 22:07:46,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 1018 transitions. [2024-10-31 22:07:46,010 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 1018 transitions. Word has length 67 [2024-10-31 22:07:46,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:07:46,011 INFO L471 AbstractCegarLoop]: Abstraction has 623 states and 1018 transitions. [2024-10-31 22:07:46,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-31 22:07:46,011 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 1018 transitions. [2024-10-31 22:07:46,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-31 22:07:46,015 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:07:46,016 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:46,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:07:46,016 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:07:46,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:46,017 INFO L85 PathProgramCache]: Analyzing trace with hash 5336215, now seen corresponding path program 1 times [2024-10-31 22:07:46,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:46,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607949355] [2024-10-31 22:07:46,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:46,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:46,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:07:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:46,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:07:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:46,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 22:07:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:46,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:07:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:46,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:07:46,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:46,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-31 22:07:46,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:46,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-31 22:07:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:46,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-31 22:07:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:46,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:07:46,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:46,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607949355] [2024-10-31 22:07:46,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607949355] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:46,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:46,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 22:07:46,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887184813] [2024-10-31 22:07:46,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:46,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:07:46,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:46,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:07:46,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:07:46,961 INFO L87 Difference]: Start difference. First operand 623 states and 1018 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8)