./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec9_product25.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_91eee5ba-e378-4982-9370-3c0810e87026/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91eee5ba-e378-4982-9370-3c0810e87026/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_91eee5ba-e378-4982-9370-3c0810e87026/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91eee5ba-e378-4982-9370-3c0810e87026/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec9_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91eee5ba-e378-4982-9370-3c0810e87026/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_91eee5ba-e378-4982-9370-3c0810e87026/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 68864d90c2581c7e2b9a72172352bcf9279d03107788434bd4ac5af6cc5db51a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:56:42,741 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:56:42,855 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91eee5ba-e378-4982-9370-3c0810e87026/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 21:56:42,863 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:56:42,865 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:56:42,901 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:56:42,902 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:56:42,903 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:56:42,903 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:56:42,904 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:56:42,905 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:56:42,906 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:56:42,907 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:56:42,909 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:56:42,910 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:56:42,910 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:56:42,910 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:56:42,911 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:56:42,911 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:56:42,911 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:56:42,912 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:56:42,913 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:56:42,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:56:42,917 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:56:42,918 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:56:42,918 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:56:42,918 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:56:42,918 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:56:42,919 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:56:42,919 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:56:42,919 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:56:42,920 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:56:42,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:56:42,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:56:42,922 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:56:42,922 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:56:42,923 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:56:42,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:56:42,924 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:56:42,924 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:56:42,924 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:56:42,925 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:56:42,925 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_91eee5ba-e378-4982-9370-3c0810e87026/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91eee5ba-e378-4982-9370-3c0810e87026/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68864d90c2581c7e2b9a72172352bcf9279d03107788434bd4ac5af6cc5db51a [2024-10-31 21:56:43,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:56:43,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:56:43,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:56:43,269 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:56:43,269 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:56:43,271 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91eee5ba-e378-4982-9370-3c0810e87026/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/product-lines/elevator_spec9_product25.cil.c Unable to find full path for "g++" [2024-10-31 21:56:45,243 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:56:45,661 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:56:45,662 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91eee5ba-e378-4982-9370-3c0810e87026/sv-benchmarks/c/product-lines/elevator_spec9_product25.cil.c [2024-10-31 21:56:45,694 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91eee5ba-e378-4982-9370-3c0810e87026/bin/uautomizer-verify-4GaUIPS5ZU/data/9edc639c0/2b2cf8d898d7493aafe8d9824d90d79d/FLAGc218bf22f [2024-10-31 21:56:45,717 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91eee5ba-e378-4982-9370-3c0810e87026/bin/uautomizer-verify-4GaUIPS5ZU/data/9edc639c0/2b2cf8d898d7493aafe8d9824d90d79d [2024-10-31 21:56:45,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:56:45,723 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:56:45,725 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:56:45,725 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:56:45,732 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:56:45,733 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:56:45" (1/1) ... [2024-10-31 21:56:45,734 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30fb0bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:45, skipping insertion in model container [2024-10-31 21:56:45,735 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:56:45" (1/1) ... [2024-10-31 21:56:45,805 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:56:46,312 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_91eee5ba-e378-4982-9370-3c0810e87026/sv-benchmarks/c/product-lines/elevator_spec9_product25.cil.c[23488,23501] [2024-10-31 21:56:46,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:56:46,525 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:56:46,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [48] [2024-10-31 21:56:46,538 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [213] [2024-10-31 21:56:46,538 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [334] [2024-10-31 21:56:46,538 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [432] [2024-10-31 21:56:46,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [446] [2024-10-31 21:56:46,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [812] [2024-10-31 21:56:46,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1166] [2024-10-31 21:56:46,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1175] [2024-10-31 21:56:46,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1842] [2024-10-31 21:56:46,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1877] [2024-10-31 21:56:46,633 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_91eee5ba-e378-4982-9370-3c0810e87026/sv-benchmarks/c/product-lines/elevator_spec9_product25.cil.c[23488,23501] [2024-10-31 21:56:46,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:56:46,792 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:56:46,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:46 WrapperNode [2024-10-31 21:56:46,793 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:56:46,794 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:56:46,794 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:56:46,794 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:56:46,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:46" (1/1) ... [2024-10-31 21:56:46,830 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:46" (1/1) ... [2024-10-31 21:56:46,886 INFO L138 Inliner]: procedures = 91, calls = 331, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 804 [2024-10-31 21:56:46,887 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:56:46,888 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:56:46,888 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:56:46,888 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:56:46,900 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:46" (1/1) ... [2024-10-31 21:56:46,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:46" (1/1) ... [2024-10-31 21:56:46,909 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:46" (1/1) ... [2024-10-31 21:56:46,939 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 21:56:46,940 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:46" (1/1) ... [2024-10-31 21:56:46,940 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:46" (1/1) ... [2024-10-31 21:56:46,959 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:46" (1/1) ... [2024-10-31 21:56:46,972 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:46" (1/1) ... [2024-10-31 21:56:46,978 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:46" (1/1) ... [2024-10-31 21:56:46,982 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:46" (1/1) ... [2024-10-31 21:56:46,991 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:56:46,992 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:56:46,992 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:56:46,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:56:46,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:46" (1/1) ... [2024-10-31 21:56:47,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:56:47,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91eee5ba-e378-4982-9370-3c0810e87026/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:47,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91eee5ba-e378-4982-9370-3c0810e87026/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:47,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91eee5ba-e378-4982-9370-3c0810e87026/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:56:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:56:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-10-31 21:56:47,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-10-31 21:56:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-10-31 21:56:47,109 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-10-31 21:56:47,110 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-10-31 21:56:47,110 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-10-31 21:56:47,110 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-10-31 21:56:47,111 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-10-31 21:56:47,111 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-10-31 21:56:47,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-10-31 21:56:47,111 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-31 21:56:47,111 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-31 21:56:47,111 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-31 21:56:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-31 21:56:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-31 21:56:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-31 21:56:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-10-31 21:56:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-10-31 21:56:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-10-31 21:56:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-10-31 21:56:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-10-31 21:56:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-10-31 21:56:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-10-31 21:56:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-10-31 21:56:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-10-31 21:56:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-10-31 21:56:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-10-31 21:56:47,117 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-10-31 21:56:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-10-31 21:56:47,117 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-10-31 21:56:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-10-31 21:56:47,118 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-10-31 21:56:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2024-10-31 21:56:47,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2024-10-31 21:56:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:56:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 21:56:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 21:56:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 21:56:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-31 21:56:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-31 21:56:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-31 21:56:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-31 21:56:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-31 21:56:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-31 21:56:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-31 21:56:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-31 21:56:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-31 21:56:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-31 21:56:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-31 21:56:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-31 21:56:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-31 21:56:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-31 21:56:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-31 21:56:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-10-31 21:56:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-10-31 21:56:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-10-31 21:56:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-10-31 21:56:47,121 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-10-31 21:56:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-10-31 21:56:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-10-31 21:56:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:56:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:56:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-10-31 21:56:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-10-31 21:56:47,383 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:56:47,386 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:56:49,004 INFO L? ?]: Removed 433 outVars from TransFormulas that were not future-live. [2024-10-31 21:56:49,004 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:56:49,036 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:56:49,037 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 21:56:49,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:56:49 BoogieIcfgContainer [2024-10-31 21:56:49,037 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:56:49,040 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:56:49,040 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:56:49,044 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:56:49,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:56:45" (1/3) ... [2024-10-31 21:56:49,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6329320d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:56:49, skipping insertion in model container [2024-10-31 21:56:49,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:46" (2/3) ... [2024-10-31 21:56:49,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6329320d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:56:49, skipping insertion in model container [2024-10-31 21:56:49,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:56:49" (3/3) ... [2024-10-31 21:56:49,053 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product25.cil.c [2024-10-31 21:56:49,069 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:56:49,070 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 21:56:49,193 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:56:49,201 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;@690c20f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:56:49,202 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 21:56:49,209 INFO L276 IsEmpty]: Start isEmpty. Operand has 532 states, 424 states have (on average 1.7146226415094339) internal successors, (727), 445 states have internal predecessors, (727), 85 states have call successors, (85), 21 states have call predecessors, (85), 21 states have return successors, (85), 79 states have call predecessors, (85), 85 states have call successors, (85) [2024-10-31 21:56:49,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-31 21:56:49,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:56:49,254 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:56:49,255 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:56:49,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:49,267 INFO L85 PathProgramCache]: Analyzing trace with hash 190080560, now seen corresponding path program 1 times [2024-10-31 21:56:49,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:49,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947315364] [2024-10-31 21:56:49,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:49,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:50,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 21:56:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:50,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:56:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:50,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:56:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:50,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 21:56:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:51,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:56:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:51,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:56:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:51,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 21:56:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:51,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-31 21:56:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:51,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 21:56:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:51,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:56:51,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:51,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947315364] [2024-10-31 21:56:51,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947315364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:51,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:51,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-31 21:56:51,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675167698] [2024-10-31 21:56:51,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:51,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 21:56:51,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:51,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 21:56:51,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-31 21:56:51,313 INFO L87 Difference]: Start difference. First operand has 532 states, 424 states have (on average 1.7146226415094339) internal successors, (727), 445 states have internal predecessors, (727), 85 states have call successors, (85), 21 states have call predecessors, (85), 21 states have return successors, (85), 79 states have call predecessors, (85), 85 states have call successors, (85) Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-31 21:57:01,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:57:01,706 INFO L93 Difference]: Finished difference Result 1289 states and 2209 transitions. [2024-10-31 21:57:01,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-31 21:57:01,709 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 76 [2024-10-31 21:57:01,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:57:01,749 INFO L225 Difference]: With dead ends: 1289 [2024-10-31 21:57:01,749 INFO L226 Difference]: Without dead ends: 769 [2024-10-31 21:57:01,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2024-10-31 21:57:01,771 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 1812 mSDsluCounter, 2452 mSDsCounter, 0 mSdLazyCounter, 4938 mSolverCounterSat, 459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1878 SdHoareTripleChecker+Valid, 2893 SdHoareTripleChecker+Invalid, 5397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 459 IncrementalHoareTripleChecker+Valid, 4938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-10-31 21:57:01,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1878 Valid, 2893 Invalid, 5397 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [459 Valid, 4938 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-10-31 21:57:01,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2024-10-31 21:57:02,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 528. [2024-10-31 21:57:02,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 421 states have (on average 1.7054631828978621) internal successors, (718), 440 states have internal predecessors, (718), 85 states have call successors, (85), 21 states have call predecessors, (85), 21 states have return successors, (82), 79 states have call predecessors, (82), 80 states have call successors, (82) [2024-10-31 21:57:02,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 885 transitions. [2024-10-31 21:57:02,072 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 885 transitions. Word has length 76 [2024-10-31 21:57:02,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:57:02,074 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 885 transitions. [2024-10-31 21:57:02,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-31 21:57:02,075 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 885 transitions. [2024-10-31 21:57:02,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-31 21:57:02,084 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:57:02,084 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:57:02,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:57:02,085 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:57:02,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:02,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1570486616, now seen corresponding path program 1 times [2024-10-31 21:57:02,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:02,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422970726] [2024-10-31 21:57:02,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:02,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:02,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 21:57:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:02,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:57:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:02,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 21:57:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:02,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 21:57:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:02,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:57:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:02,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:57:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:02,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 21:57:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:03,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 21:57:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:03,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-31 21:57:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:03,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:03,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:03,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422970726] [2024-10-31 21:57:03,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422970726] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:03,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:03,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-31 21:57:03,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185997745] [2024-10-31 21:57:03,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:03,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 21:57:03,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:03,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 21:57:03,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-31 21:57:03,039 INFO L87 Difference]: Start difference. First operand 528 states and 885 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9)