./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec3_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029d742e-1f94-410d-b32f-c7adf398c70b/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029d742e-1f94-410d-b32f-c7adf398c70b/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_029d742e-1f94-410d-b32f-c7adf398c70b/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029d742e-1f94-410d-b32f-c7adf398c70b/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec3_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029d742e-1f94-410d-b32f-c7adf398c70b/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_029d742e-1f94-410d-b32f-c7adf398c70b/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 d14be9b096a9cbd7bae6b76d9713e8ec6e66d6633cec6a9d1cec5445761f8a9c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:05:06,319 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:05:06,407 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029d742e-1f94-410d-b32f-c7adf398c70b/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:05:06,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:05:06,414 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:05:06,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:05:06,447 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:05:06,447 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:05:06,448 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:05:06,450 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:05:06,451 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:05:06,452 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:05:06,452 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:05:06,453 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:05:06,453 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:05:06,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:05:06,454 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:05:06,456 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:05:06,456 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:05:06,457 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:05:06,457 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:05:06,461 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:05:06,461 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:05:06,461 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:05:06,462 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:05:06,462 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:05:06,462 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:05:06,462 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:05:06,463 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:05:06,463 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:05:06,463 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:05:06,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:05:06,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:05:06,464 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:05:06,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:05:06,465 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:05:06,465 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:05:06,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:05:06,466 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:05:06,466 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:05:06,466 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:05:06,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:05:06,468 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_029d742e-1f94-410d-b32f-c7adf398c70b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029d742e-1f94-410d-b32f-c7adf398c70b/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d14be9b096a9cbd7bae6b76d9713e8ec6e66d6633cec6a9d1cec5445761f8a9c [2024-10-31 22:05:06,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:05:06,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:05:06,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:05:06,869 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:05:06,869 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:05:06,871 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029d742e-1f94-410d-b32f-c7adf398c70b/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/product-lines/elevator_spec3_product32.cil.c Unable to find full path for "g++" [2024-10-31 22:05:09,082 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:05:09,529 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:05:09,529 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029d742e-1f94-410d-b32f-c7adf398c70b/sv-benchmarks/c/product-lines/elevator_spec3_product32.cil.c [2024-10-31 22:05:09,563 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029d742e-1f94-410d-b32f-c7adf398c70b/bin/uautomizer-verify-4GaUIPS5ZU/data/b23431cb7/194d936ff34641568a314f1762378643/FLAG11297f91e [2024-10-31 22:05:09,581 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029d742e-1f94-410d-b32f-c7adf398c70b/bin/uautomizer-verify-4GaUIPS5ZU/data/b23431cb7/194d936ff34641568a314f1762378643 [2024-10-31 22:05:09,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:05:09,586 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:05:09,591 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:05:09,592 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:05:09,599 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:05:09,599 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:05:09" (1/1) ... [2024-10-31 22:05:09,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@394dca19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:09, skipping insertion in model container [2024-10-31 22:05:09,603 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:05:09" (1/1) ... [2024-10-31 22:05:09,690 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:05:10,204 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_029d742e-1f94-410d-b32f-c7adf398c70b/sv-benchmarks/c/product-lines/elevator_spec3_product32.cil.c[3233,3246] [2024-10-31 22:05:10,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:05:10,813 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:05:10,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [48] [2024-10-31 22:05:10,826 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [151] [2024-10-31 22:05:10,826 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [160] [2024-10-31 22:05:10,826 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [198] [2024-10-31 22:05:10,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [564] [2024-10-31 22:05:10,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [753] [2024-10-31 22:05:10,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [873] [2024-10-31 22:05:10,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1540] [2024-10-31 22:05:10,828 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1558] [2024-10-31 22:05:10,828 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1907] [2024-10-31 22:05:10,836 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_029d742e-1f94-410d-b32f-c7adf398c70b/sv-benchmarks/c/product-lines/elevator_spec3_product32.cil.c[3233,3246] [2024-10-31 22:05:11,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:05:11,043 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:05:11,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:11 WrapperNode [2024-10-31 22:05:11,044 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:05:11,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:05:11,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:05:11,047 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:05:11,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:11" (1/1) ... [2024-10-31 22:05:11,090 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:11" (1/1) ... [2024-10-31 22:05:11,169 INFO L138 Inliner]: procedures = 97, calls = 361, calls flagged for inlining = 29, calls inlined = 25, statements flattened = 1009 [2024-10-31 22:05:11,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:05:11,171 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:05:11,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:05:11,171 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:05:11,192 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:11" (1/1) ... [2024-10-31 22:05:11,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:11" (1/1) ... [2024-10-31 22:05:11,207 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:11" (1/1) ... [2024-10-31 22:05:11,271 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 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 22:05:11,272 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:11" (1/1) ... [2024-10-31 22:05:11,272 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:11" (1/1) ... [2024-10-31 22:05:11,317 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:11" (1/1) ... [2024-10-31 22:05:11,342 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:11" (1/1) ... [2024-10-31 22:05:11,353 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:11" (1/1) ... [2024-10-31 22:05:11,358 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:11" (1/1) ... [2024-10-31 22:05:11,370 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:05:11,371 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:05:11,371 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:05:11,371 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:05:11,372 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:11" (1/1) ... [2024-10-31 22:05:11,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:05:11,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029d742e-1f94-410d-b32f-c7adf398c70b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:11,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029d742e-1f94-410d-b32f-c7adf398c70b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:05:11,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029d742e-1f94-410d-b32f-c7adf398c70b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:05:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2024-10-31 22:05:11,452 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2024-10-31 22:05:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-10-31 22:05:11,452 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-10-31 22:05:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-10-31 22:05:11,453 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-10-31 22:05:11,453 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2024-10-31 22:05:11,453 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2024-10-31 22:05:11,453 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-31 22:05:11,453 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-31 22:05:11,453 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-10-31 22:05:11,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-10-31 22:05:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-10-31 22:05:11,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-10-31 22:05:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-10-31 22:05:11,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-10-31 22:05:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-10-31 22:05:11,454 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-10-31 22:05:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-10-31 22:05:11,455 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-10-31 22:05:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-10-31 22:05:11,455 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-10-31 22:05:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:05:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-10-31 22:05:11,456 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-10-31 22:05:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-10-31 22:05:11,456 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-10-31 22:05:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-10-31 22:05:11,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-10-31 22:05:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-10-31 22:05:11,456 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-10-31 22:05:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-10-31 22:05:11,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-10-31 22:05:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-31 22:05:11,459 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-31 22:05:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-31 22:05:11,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-31 22:05:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-10-31 22:05:11,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-10-31 22:05:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2024-10-31 22:05:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2024-10-31 22:05:11,460 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-10-31 22:05:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-10-31 22:05:11,460 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2024-10-31 22:05:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2024-10-31 22:05:11,460 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-10-31 22:05:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-10-31 22:05:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-10-31 22:05:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-10-31 22:05:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-10-31 22:05:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-10-31 22:05:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-10-31 22:05:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-10-31 22:05:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:05:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:05:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:05:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:05:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-31 22:05:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-31 22:05:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-31 22:05:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-31 22:05:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-31 22:05:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-31 22:05:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-31 22:05:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-31 22:05:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-31 22:05:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-31 22:05:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-31 22:05:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-31 22:05:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-31 22:05:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-31 22:05:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-31 22:05:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-10-31 22:05:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-10-31 22:05:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-10-31 22:05:11,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:05:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:05:11,466 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-10-31 22:05:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-10-31 22:05:11,467 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2024-10-31 22:05:11,467 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2024-10-31 22:05:11,784 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:05:11,789 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:05:13,710 INFO L? ?]: Removed 497 outVars from TransFormulas that were not future-live. [2024-10-31 22:05:13,711 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:05:13,756 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:05:13,756 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:05:13,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:13 BoogieIcfgContainer [2024-10-31 22:05:13,757 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:05:13,761 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:05:13,761 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:05:13,771 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:05:13,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:05:09" (1/3) ... [2024-10-31 22:05:13,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701e0bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:05:13, skipping insertion in model container [2024-10-31 22:05:13,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:11" (2/3) ... [2024-10-31 22:05:13,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701e0bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:05:13, skipping insertion in model container [2024-10-31 22:05:13,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:13" (3/3) ... [2024-10-31 22:05:13,776 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product32.cil.c [2024-10-31 22:05:13,795 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:05:13,795 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:05:13,884 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:05:13,891 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;@4d589d49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:05:13,892 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:05:13,899 INFO L276 IsEmpty]: Start isEmpty. Operand has 629 states, 483 states have (on average 1.660455486542443) internal successors, (802), 503 states have internal predecessors, (802), 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 22:05:13,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-31 22:05:13,917 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:13,918 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 22:05:13,919 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:13,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:13,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1654757365, now seen corresponding path program 1 times [2024-10-31 22:05:13,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:13,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078661950] [2024-10-31 22:05:13,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:13,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:14,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:15,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:05:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:15,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:05:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:15,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 22:05:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:15,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:05:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:15,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:05:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:15,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-31 22:05:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:15,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-31 22:05:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:15,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 22:05:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:15,923 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 22:05:15,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:15,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078661950] [2024-10-31 22:05:15,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078661950] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:15,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:15,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 22:05:15,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847768336] [2024-10-31 22:05:15,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:15,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:05:15,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:15,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:05:15,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:05:15,974 INFO L87 Difference]: Start difference. First operand has 629 states, 483 states have (on average 1.660455486542443) internal successors, (802), 503 states have internal predecessors, (802), 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 22:05:28,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:28,281 INFO L93 Difference]: Finished difference Result 1539 states and 2625 transitions. [2024-10-31 22:05:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:05:28,285 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 22:05:28,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:28,327 INFO L225 Difference]: With dead ends: 1539 [2024-10-31 22:05:28,327 INFO L226 Difference]: Without dead ends: 914 [2024-10-31 22:05:28,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:05:28,346 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 1572 mSDsluCounter, 2238 mSDsCounter, 0 mSdLazyCounter, 5465 mSolverCounterSat, 423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1688 SdHoareTripleChecker+Valid, 2688 SdHoareTripleChecker+Invalid, 5888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 5465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:28,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1688 Valid, 2688 Invalid, 5888 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [423 Valid, 5465 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2024-10-31 22:05:28,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2024-10-31 22:05:28,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 632. [2024-10-31 22:05:28,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 486 states have (on average 1.6522633744855968) internal successors, (803), 506 states have internal predecessors, (803), 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 22:05:28,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 1034 transitions. [2024-10-31 22:05:28,647 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 1034 transitions. Word has length 67 [2024-10-31 22:05:28,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:28,648 INFO L471 AbstractCegarLoop]: Abstraction has 632 states and 1034 transitions. [2024-10-31 22:05:28,648 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 22:05:28,648 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 1034 transitions. [2024-10-31 22:05:28,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-31 22:05:28,652 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:28,652 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 22:05:28,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:05:28,653 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:28,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:28,653 INFO L85 PathProgramCache]: Analyzing trace with hash 527958941, now seen corresponding path program 1 times [2024-10-31 22:05:28,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:28,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747745487] [2024-10-31 22:05:28,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:28,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:29,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:05:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:29,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:05:29,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:29,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 22:05:29,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:29,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:05:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:29,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:05:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:29,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-31 22:05:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:29,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-31 22:05:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:29,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-31 22:05:29,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:29,565 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 22:05:29,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:29,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747745487] [2024-10-31 22:05:29,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747745487] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:29,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:29,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:05:29,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259136441] [2024-10-31 22:05:29,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:29,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:05:29,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:29,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:05:29,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:05:29,572 INFO L87 Difference]: Start difference. First operand 632 states and 1034 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:05:37,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:37,056 INFO L93 Difference]: Finished difference Result 1524 states and 2572 transitions. [2024-10-31 22:05:37,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:05:37,057 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2024-10-31 22:05:37,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:37,066 INFO L225 Difference]: With dead ends: 1524 [2024-10-31 22:05:37,066 INFO L226 Difference]: Without dead ends: 877 [2024-10-31 22:05:37,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:05:37,071 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 1483 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 2840 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1598 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 3261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 2840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:37,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1598 Valid, 1402 Invalid, 3261 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [421 Valid, 2840 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-10-31 22:05:37,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2024-10-31 22:05:37,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 608. [2024-10-31 22:05:37,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 465 states have (on average 1.643010752688172) internal successors, (764), 483 states have internal predecessors, (764), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2024-10-31 22:05:37,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 991 transitions. [2024-10-31 22:05:37,241 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 991 transitions. Word has length 68 [2024-10-31 22:05:37,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:37,242 INFO L471 AbstractCegarLoop]: Abstraction has 608 states and 991 transitions. [2024-10-31 22:05:37,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:05:37,242 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 991 transitions. [2024-10-31 22:05:37,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-31 22:05:37,245 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:37,245 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 22:05:37,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:05:37,246 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:05:37,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:37,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1072531637, now seen corresponding path program 1 times [2024-10-31 22:05:37,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:37,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037636541] [2024-10-31 22:05:37,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:37,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:37,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:05:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:37,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:05:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:38,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 22:05:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:38,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:05:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:38,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:05:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:38,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-31 22:05:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:38,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-31 22:05:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:38,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-31 22:05:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:38,159 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 22:05:38,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:38,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037636541] [2024-10-31 22:05:38,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037636541] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:38,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:38,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 22:05:38,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656244818] [2024-10-31 22:05:38,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:38,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:05:38,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:38,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:05:38,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:05:38,163 INFO L87 Difference]: Start difference. First operand 608 states and 991 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)