./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec3_product30.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_a1a637ea-25e9-4f50-bc11-085095b54e91/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1a637ea-25e9-4f50-bc11-085095b54e91/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_a1a637ea-25e9-4f50-bc11-085095b54e91/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1a637ea-25e9-4f50-bc11-085095b54e91/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec3_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1a637ea-25e9-4f50-bc11-085095b54e91/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_a1a637ea-25e9-4f50-bc11-085095b54e91/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 4fa4154afcc1fa94c570756c4d3485a9415aeef22801b46450f13cd61ecf8230 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:09:11,514 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:09:11,593 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1a637ea-25e9-4f50-bc11-085095b54e91/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:09:11,598 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:09:11,601 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:09:11,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:09:11,648 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:09:11,649 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:09:11,650 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:09:11,651 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:09:11,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:09:11,652 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:09:11,654 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:09:11,654 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:09:11,655 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:09:11,655 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:09:11,656 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:09:11,656 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:09:11,656 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:09:11,660 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:09:11,660 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:09:11,661 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:09:11,661 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:09:11,662 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:09:11,662 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:09:11,663 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:09:11,663 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:09:11,663 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:09:11,664 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:09:11,664 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:09:11,665 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:09:11,665 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:09:11,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:09:11,666 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:09:11,667 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:09:11,667 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:09:11,667 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:09:11,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:09:11,668 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:09:11,668 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:09:11,669 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:09:11,670 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:09:11,671 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_a1a637ea-25e9-4f50-bc11-085095b54e91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1a637ea-25e9-4f50-bc11-085095b54e91/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fa4154afcc1fa94c570756c4d3485a9415aeef22801b46450f13cd61ecf8230 [2024-10-31 22:09:11,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:09:11,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:09:11,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:09:11,990 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:09:11,991 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:09:11,992 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1a637ea-25e9-4f50-bc11-085095b54e91/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/product-lines/elevator_spec3_product30.cil.c Unable to find full path for "g++" [2024-10-31 22:09:14,105 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:09:14,551 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:09:14,552 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1a637ea-25e9-4f50-bc11-085095b54e91/sv-benchmarks/c/product-lines/elevator_spec3_product30.cil.c [2024-10-31 22:09:14,574 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1a637ea-25e9-4f50-bc11-085095b54e91/bin/uautomizer-verify-4GaUIPS5ZU/data/6e0e51819/b4f861b414cd4acd9c81709142feb8c0/FLAG7ea33c9d6 [2024-10-31 22:09:14,589 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1a637ea-25e9-4f50-bc11-085095b54e91/bin/uautomizer-verify-4GaUIPS5ZU/data/6e0e51819/b4f861b414cd4acd9c81709142feb8c0 [2024-10-31 22:09:14,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:09:14,593 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:09:14,595 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:09:14,595 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:09:14,602 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:09:14,603 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:09:14" (1/1) ... [2024-10-31 22:09:14,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b95803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:14, skipping insertion in model container [2024-10-31 22:09:14,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:09:14" (1/1) ... [2024-10-31 22:09:14,685 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:09:14,990 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_a1a637ea-25e9-4f50-bc11-085095b54e91/sv-benchmarks/c/product-lines/elevator_spec3_product30.cil.c[14523,14536] [2024-10-31 22:09:15,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:09:15,276 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:09:15,286 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2024-10-31 22:09:15,288 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [169] [2024-10-31 22:09:15,289 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [528] [2024-10-31 22:09:15,289 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [623] [2024-10-31 22:09:15,290 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [813] [2024-10-31 22:09:15,290 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [828] [2024-10-31 22:09:15,291 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [837] [2024-10-31 22:09:15,291 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2419] [2024-10-31 22:09:15,292 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2785] [2024-10-31 22:09:15,292 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2820] [2024-10-31 22:09:15,340 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_a1a637ea-25e9-4f50-bc11-085095b54e91/sv-benchmarks/c/product-lines/elevator_spec3_product30.cil.c[14523,14536] [2024-10-31 22:09:15,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:09:15,526 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:09:15,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:15 WrapperNode [2024-10-31 22:09:15,527 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:09:15,528 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:09:15,528 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:09:15,528 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:09:15,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:15" (1/1) ... [2024-10-31 22:09:15,563 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:15" (1/1) ... [2024-10-31 22:09:15,637 INFO L138 Inliner]: procedures = 93, calls = 353, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 948 [2024-10-31 22:09:15,638 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:09:15,639 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:09:15,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:09:15,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:09:15,659 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:15" (1/1) ... [2024-10-31 22:09:15,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:15" (1/1) ... [2024-10-31 22:09:15,666 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:15" (1/1) ... [2024-10-31 22:09:15,714 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 22:09:15,715 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:15" (1/1) ... [2024-10-31 22:09:15,715 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:15" (1/1) ... [2024-10-31 22:09:15,757 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:15" (1/1) ... [2024-10-31 22:09:15,776 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:15" (1/1) ... [2024-10-31 22:09:15,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:15" (1/1) ... [2024-10-31 22:09:15,788 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:15" (1/1) ... [2024-10-31 22:09:15,798 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:09:15,799 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:09:15,799 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:09:15,800 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:09:15,801 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:15" (1/1) ... [2024-10-31 22:09:15,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:09:15,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1a637ea-25e9-4f50-bc11-085095b54e91/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:15,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1a637ea-25e9-4f50-bc11-085095b54e91/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:09:15,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1a637ea-25e9-4f50-bc11-085095b54e91/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:09:15,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:09:15,887 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2024-10-31 22:09:15,887 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2024-10-31 22:09:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-10-31 22:09:15,888 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-10-31 22:09:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-10-31 22:09:15,889 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-10-31 22:09:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-10-31 22:09:15,889 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-10-31 22:09:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-10-31 22:09:15,889 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-10-31 22:09:15,890 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-10-31 22:09:15,890 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-10-31 22:09:15,890 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2024-10-31 22:09:15,890 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2024-10-31 22:09:15,890 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-31 22:09:15,891 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-31 22:09:15,891 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-31 22:09:15,893 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-31 22:09:15,893 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-31 22:09:15,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-31 22:09:15,893 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-10-31 22:09:15,893 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-10-31 22:09:15,894 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-10-31 22:09:15,894 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-10-31 22:09:15,894 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-10-31 22:09:15,894 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-10-31 22:09:15,894 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-10-31 22:09:15,894 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-10-31 22:09:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2024-10-31 22:09:15,895 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2024-10-31 22:09:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-10-31 22:09:15,895 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-10-31 22:09:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2024-10-31 22:09:15,895 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2024-10-31 22:09:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-10-31 22:09:15,897 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-10-31 22:09:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-10-31 22:09:15,897 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-10-31 22:09:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-10-31 22:09:15,898 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-10-31 22:09:15,898 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-10-31 22:09:15,898 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-10-31 22:09:15,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:09:15,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:09:15,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:09:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:09:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-31 22:09:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-31 22:09:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-31 22:09:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-31 22:09:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-31 22:09:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-31 22:09:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-31 22:09:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-31 22:09:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-31 22:09:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-31 22:09:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-31 22:09:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-31 22:09:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-31 22:09:15,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-31 22:09:15,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-31 22:09:15,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-10-31 22:09:15,903 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-10-31 22:09:15,903 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-10-31 22:09:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-10-31 22:09:15,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-10-31 22:09:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-10-31 22:09:15,905 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-10-31 22:09:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-10-31 22:09:15,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-10-31 22:09:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2024-10-31 22:09:15,905 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2024-10-31 22:09:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:09:15,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:09:15,906 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-10-31 22:09:15,906 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-10-31 22:09:16,141 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:09:16,146 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:09:17,897 INFO L? ?]: Removed 474 outVars from TransFormulas that were not future-live. [2024-10-31 22:09:17,897 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:09:17,940 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:09:17,940 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:09:17,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:09:17 BoogieIcfgContainer [2024-10-31 22:09:17,942 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:09:17,944 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:09:17,947 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:09:17,990 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:09:17,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:09:14" (1/3) ... [2024-10-31 22:09:17,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5920db9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:09:17, skipping insertion in model container [2024-10-31 22:09:17,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:15" (2/3) ... [2024-10-31 22:09:17,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5920db9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:09:17, skipping insertion in model container [2024-10-31 22:09:17,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:09:17" (3/3) ... [2024-10-31 22:09:17,994 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product30.cil.c [2024-10-31 22:09:18,014 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:09:18,015 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:09:18,119 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:09:18,128 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;@72d0e31b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:09:18,129 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:09:18,140 INFO L276 IsEmpty]: Start isEmpty. Operand has 605 states, 468 states have (on average 1.6752136752136753) internal successors, (784), 488 states have internal predecessors, (784), 108 states have call successors, (108), 27 states have call predecessors, (108), 27 states have return successors, (108), 104 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-31 22:09:18,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-31 22:09:18,158 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:18,159 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 22:09:18,159 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:18,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:18,166 INFO L85 PathProgramCache]: Analyzing trace with hash 285994520, now seen corresponding path program 1 times [2024-10-31 22:09:18,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:18,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848058793] [2024-10-31 22:09:18,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:18,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:19,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:09:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:20,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:09:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:20,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 22:09:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:20,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:09:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:20,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:09:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:20,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-31 22:09:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:20,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-31 22:09:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:20,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 22:09:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:20,309 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 22:09:20,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:20,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848058793] [2024-10-31 22:09:20,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848058793] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:20,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:20,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 22:09:20,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862894964] [2024-10-31 22:09:20,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:20,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:09:20,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:20,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:09:20,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:09:20,354 INFO L87 Difference]: Start difference. First operand has 605 states, 468 states have (on average 1.6752136752136753) internal successors, (784), 488 states have internal predecessors, (784), 108 states have call successors, (108), 27 states have call predecessors, (108), 27 states have return successors, (108), 104 states have call predecessors, (108), 108 states have call successors, (108) 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 22:09:31,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:31,189 INFO L93 Difference]: Finished difference Result 1491 states and 2561 transitions. [2024-10-31 22:09:31,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:09:31,192 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 22:09:31,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:31,231 INFO L225 Difference]: With dead ends: 1491 [2024-10-31 22:09:31,232 INFO L226 Difference]: Without dead ends: 890 [2024-10-31 22:09:31,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:09:31,255 INFO L432 NwaCegarLoop]: 391 mSDtfsCounter, 1577 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 5158 mSolverCounterSat, 432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1686 SdHoareTripleChecker+Valid, 2327 SdHoareTripleChecker+Invalid, 5590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 432 IncrementalHoareTripleChecker+Valid, 5158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:31,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1686 Valid, 2327 Invalid, 5590 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [432 Valid, 5158 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2024-10-31 22:09:31,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2024-10-31 22:09:31,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 608. [2024-10-31 22:09:31,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 471 states have (on average 1.6666666666666667) internal successors, (785), 491 states have internal predecessors, (785), 109 states have call successors, (109), 27 states have call predecessors, (109), 27 states have return successors, (108), 103 states have call predecessors, (108), 106 states have call successors, (108) [2024-10-31 22:09:31,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 1002 transitions. [2024-10-31 22:09:31,583 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 1002 transitions. Word has length 67 [2024-10-31 22:09:31,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:31,585 INFO L471 AbstractCegarLoop]: Abstraction has 608 states and 1002 transitions. [2024-10-31 22:09:31,585 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 22:09:31,585 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 1002 transitions. [2024-10-31 22:09:31,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-31 22:09:31,592 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:31,592 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 22:09:31,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:09:31,593 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:31,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:31,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1817835030, now seen corresponding path program 1 times [2024-10-31 22:09:31,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:31,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413443724] [2024-10-31 22:09:31,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:31,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:31,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:32,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:09:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:32,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:09:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:32,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 22:09:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:32,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:09:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:32,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:09:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:32,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-31 22:09:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:32,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-31 22:09:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:32,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-31 22:09:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:32,508 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 22:09:32,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:32,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413443724] [2024-10-31 22:09:32,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413443724] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:32,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:32,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 22:09:32,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908389997] [2024-10-31 22:09:32,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:32,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:09:32,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:32,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:09:32,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:09:32,512 INFO L87 Difference]: Start difference. First operand 608 states and 1002 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) [2024-10-31 22:09:42,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:42,358 INFO L93 Difference]: Finished difference Result 1482 states and 2522 transitions. [2024-10-31 22:09:42,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:09:42,359 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 68 [2024-10-31 22:09:42,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:42,369 INFO L225 Difference]: With dead ends: 1482 [2024-10-31 22:09:42,369 INFO L226 Difference]: Without dead ends: 890 [2024-10-31 22:09:42,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:09:42,374 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 899 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 5344 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 5545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 5344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:42,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 2317 Invalid, 5545 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [201 Valid, 5344 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-10-31 22:09:42,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2024-10-31 22:09:42,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 608. [2024-10-31 22:09:42,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 471 states have (on average 1.664543524416136) internal successors, (784), 491 states have internal predecessors, (784), 109 states have call successors, (109), 27 states have call predecessors, (109), 27 states have return successors, (108), 103 states have call predecessors, (108), 106 states have call successors, (108) [2024-10-31 22:09:42,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 1001 transitions. [2024-10-31 22:09:42,533 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 1001 transitions. Word has length 68 [2024-10-31 22:09:42,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:42,534 INFO L471 AbstractCegarLoop]: Abstraction has 608 states and 1001 transitions. [2024-10-31 22:09:42,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2024-10-31 22:09:42,535 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 1001 transitions. [2024-10-31 22:09:42,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-31 22:09:42,537 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:42,537 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 22:09:42,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:09:42,537 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:09:42,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:42,538 INFO L85 PathProgramCache]: Analyzing trace with hash -708829500, now seen corresponding path program 1 times [2024-10-31 22:09:42,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:42,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413403293] [2024-10-31 22:09:42,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:42,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:42,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:09:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat