./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec3_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec3_product29.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0d12edbd4df2f08d75221f3c96b68e50e6394815b34a699d313e71ea24bf9c38 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 07:32:52,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 07:32:52,806 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 07:32:52,811 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 07:32:52,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 07:32:52,835 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 07:32:52,836 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 07:32:52,836 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 07:32:52,837 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 07:32:52,838 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 07:32:52,838 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 07:32:52,839 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 07:32:52,839 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 07:32:52,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 07:32:52,841 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 07:32:52,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 07:32:52,841 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 07:32:52,841 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 07:32:52,842 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 07:32:52,844 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 07:32:52,845 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 07:32:52,845 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 07:32:52,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 07:32:52,845 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 07:32:52,846 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 07:32:52,846 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 07:32:52,846 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 07:32:52,846 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 07:32:52,846 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 07:32:52,847 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 07:32:52,847 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 07:32:52,847 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 07:32:52,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:32:52,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 07:32:52,848 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 07:32:52,848 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 07:32:52,848 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 07:32:52,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 07:32:52,848 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 07:32:52,848 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 07:32:52,849 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 07:32:52,850 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 07:32:52,850 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d12edbd4df2f08d75221f3c96b68e50e6394815b34a699d313e71ea24bf9c38 [2024-11-16 07:32:53,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 07:32:53,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 07:32:53,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 07:32:53,073 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 07:32:53,074 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 07:32:53,075 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product29.cil.c [2024-11-16 07:32:54,334 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 07:32:54,609 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 07:32:54,610 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product29.cil.c [2024-11-16 07:32:54,629 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f39cb537/16df1dcf4440416baf76c96dcd4e7522/FLAG00c0c97d0 [2024-11-16 07:32:54,902 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f39cb537/16df1dcf4440416baf76c96dcd4e7522 [2024-11-16 07:32:54,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 07:32:54,905 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 07:32:54,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 07:32:54,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 07:32:54,913 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 07:32:54,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:32:54" (1/1) ... [2024-11-16 07:32:54,914 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c7314e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:32:54, skipping insertion in model container [2024-11-16 07:32:54,915 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:32:54" (1/1) ... [2024-11-16 07:32:54,965 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 07:32:55,309 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product29.cil.c[40506,40519] [2024-11-16 07:32:55,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:32:55,415 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 07:32:55,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2024-11-16 07:32:55,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [716] [2024-11-16 07:32:55,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [754] [2024-11-16 07:32:55,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1120] [2024-11-16 07:32:55,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1220] [2024-11-16 07:32:55,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1340] [2024-11-16 07:32:55,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [1358] [2024-11-16 07:32:55,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1548] [2024-11-16 07:32:55,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1897] [2024-11-16 07:32:55,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1906] [2024-11-16 07:32:55,475 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product29.cil.c[40506,40519] [2024-11-16 07:32:55,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:32:55,515 INFO L204 MainTranslator]: Completed translation [2024-11-16 07:32:55,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:32:55 WrapperNode [2024-11-16 07:32:55,515 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 07:32:55,517 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 07:32:55,517 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 07:32:55,518 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 07:32:55,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:32:55" (1/1) ... [2024-11-16 07:32:55,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:32:55" (1/1) ... [2024-11-16 07:32:55,579 INFO L138 Inliner]: procedures = 91, calls = 347, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 926 [2024-11-16 07:32:55,579 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 07:32:55,582 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 07:32:55,583 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 07:32:55,583 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 07:32:55,592 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:32:55" (1/1) ... [2024-11-16 07:32:55,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:32:55" (1/1) ... [2024-11-16 07:32:55,599 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:32:55" (1/1) ... [2024-11-16 07:32:55,621 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]. [2024-11-16 07:32:55,621 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:32:55" (1/1) ... [2024-11-16 07:32:55,621 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:32:55" (1/1) ... [2024-11-16 07:32:55,641 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:32:55" (1/1) ... [2024-11-16 07:32:55,648 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:32:55" (1/1) ... [2024-11-16 07:32:55,656 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:32:55" (1/1) ... [2024-11-16 07:32:55,661 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:32:55" (1/1) ... [2024-11-16 07:32:55,671 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 07:32:55,676 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 07:32:55,676 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 07:32:55,676 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 07:32:55,677 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:32:55" (1/1) ... [2024-11-16 07:32:55,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:32:55,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:32:55,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 07:32:55,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 07:32:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 07:32:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2024-11-16 07:32:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2024-11-16 07:32:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-16 07:32:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-16 07:32:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-16 07:32:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-16 07:32:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-16 07:32:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-16 07:32:55,756 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-16 07:32:55,756 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-16 07:32:55,756 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-16 07:32:55,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-16 07:32:55,756 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2024-11-16 07:32:55,756 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2024-11-16 07:32:55,756 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-16 07:32:55,756 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-16 07:32:55,756 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-16 07:32:55,757 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-16 07:32:55,757 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-16 07:32:55,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-16 07:32:55,757 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-16 07:32:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-16 07:32:55,758 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-16 07:32:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-16 07:32:55,758 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-16 07:32:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-16 07:32:55,758 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-16 07:32:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-16 07:32:55,759 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2024-11-16 07:32:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2024-11-16 07:32:55,759 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-16 07:32:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-16 07:32:55,759 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-16 07:32:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-16 07:32:55,759 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2024-11-16 07:32:55,761 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2024-11-16 07:32:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-16 07:32:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-16 07:32:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-16 07:32:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-16 07:32:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-16 07:32:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-16 07:32:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 07:32:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 07:32:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 07:32:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 07:32:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 07:32:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 07:32:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-16 07:32:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-16 07:32:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-16 07:32:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-16 07:32:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-16 07:32:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-16 07:32:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-16 07:32:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-16 07:32:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-16 07:32:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-16 07:32:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-16 07:32:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-16 07:32:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-16 07:32:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-16 07:32:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-16 07:32:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-16 07:32:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-16 07:32:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-16 07:32:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-16 07:32:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-16 07:32:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-16 07:32:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-16 07:32:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 07:32:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 07:32:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-16 07:32:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-16 07:32:55,897 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 07:32:55,899 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 07:32:55,928 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2203: #res := ~retValue_acc~17; [2024-11-16 07:32:55,947 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1337: #res := ~retValue_acc~10; [2024-11-16 07:32:55,962 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1259: #res := ~retValue_acc~8; [2024-11-16 07:32:55,965 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1978: #res := ~retValue_acc~13; [2024-11-16 07:32:55,968 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2151: #res := ~retValue_acc~14; [2024-11-16 07:32:56,142 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2761-1: isAnyLiftButtonPressed_#res#1 := isAnyLiftButtonPressed_~retValue_acc~23#1; [2024-11-16 07:32:56,142 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2727: #res#1 := ~retValue_acc~22#1; [2024-11-16 07:32:56,220 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2859: #res := ~retValue_acc~26; [2024-11-16 07:32:56,234 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1298: #res := ~retValue_acc~9; [2024-11-16 07:32:56,405 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2688: #res := ~retValue_acc~21; [2024-11-16 07:32:56,427 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2194: #res := ~retValue_acc~16; [2024-11-16 07:32:56,456 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2243-1: isEmpty_#res#1 := isEmpty_~retValue_acc~18#1; [2024-11-16 07:32:56,490 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2323-1: anyStopRequested_#res#1 := anyStopRequested_~retValue_acc~19#1; [2024-11-16 07:32:56,490 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2336-1: isIdle_#res#1 := isIdle_~retValue_acc~20#1; [2024-11-16 07:32:56,612 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2845-1: stopRequestedAtCurrentFloor_#res#1 := stopRequestedAtCurrentFloor_~retValue_acc~25#1; [2024-11-16 07:32:56,612 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2817-1: stopRequestedAtCurrentFloor__wrappee__empty_#res#1 := stopRequestedAtCurrentFloor__wrappee__empty_~retValue_acc~24#1; [2024-11-16 07:32:56,659 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L402: #res := ~retValue_acc~1; [2024-11-16 07:32:56,733 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1894-1: main_#res#1 := main_~retValue_acc~12#1; [2024-11-16 07:32:56,734 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L751-1: valid_product_#res#1 := valid_product_~retValue_acc~4#1; [2024-11-16 07:32:56,744 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L166: #res := ~retValue_acc~0; [2024-11-16 07:32:56,751 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L713: #res := ~retValue_acc~2; [2024-11-16 07:32:56,888 INFO L? ?]: Removed 470 outVars from TransFormulas that were not future-live. [2024-11-16 07:32:56,888 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 07:32:56,905 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 07:32:56,905 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 07:32:56,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:32:56 BoogieIcfgContainer [2024-11-16 07:32:56,906 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 07:32:56,907 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 07:32:56,907 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 07:32:56,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 07:32:56,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:32:54" (1/3) ... [2024-11-16 07:32:56,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a6d125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:32:56, skipping insertion in model container [2024-11-16 07:32:56,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:32:55" (2/3) ... [2024-11-16 07:32:56,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a6d125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:32:56, skipping insertion in model container [2024-11-16 07:32:56,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:32:56" (3/3) ... [2024-11-16 07:32:56,911 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product29.cil.c [2024-11-16 07:32:56,922 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 07:32:56,926 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 07:32:57,028 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 07:32:57,037 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;@22de6df0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 07:32:57,037 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 07:32:57,043 INFO L276 IsEmpty]: Start isEmpty. Operand has 627 states, 493 states have (on average 1.6369168356997972) internal successors, (807), 511 states have internal predecessors, (807), 106 states have call successors, (106), 26 states have call predecessors, (106), 26 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-16 07:32:57,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 07:32:57,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:32:57,077 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:32:57,078 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:32:57,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:32:57,085 INFO L85 PathProgramCache]: Analyzing trace with hash -130326479, now seen corresponding path program 1 times [2024-11-16 07:32:57,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:32:57,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496877413] [2024-11-16 07:32:57,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:32:57,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:32:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:58,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:58,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:58,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:32:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:58,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:58,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:58,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:32:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:58,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 07:32:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:58,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 07:32:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:58,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-16 07:32:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:58,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 07:32:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:58,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 07:32:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:58,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 07:32:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:58,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 07:32:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:58,366 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:32:58,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:32:58,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496877413] [2024-11-16 07:32:58,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496877413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:32:58,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:32:58,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 07:32:58,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863187878] [2024-11-16 07:32:58,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:32:58,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 07:32:58,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:32:58,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 07:32:58,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:32:58,409 INFO L87 Difference]: Start difference. First operand has 627 states, 493 states have (on average 1.6369168356997972) internal successors, (807), 511 states have internal predecessors, (807), 106 states have call successors, (106), 26 states have call predecessors, (106), 26 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106) Second operand has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:33:05,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:33:05,336 INFO L93 Difference]: Finished difference Result 1620 states and 2748 transitions. [2024-11-16 07:33:05,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 07:33:05,338 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 103 [2024-11-16 07:33:05,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:33:05,362 INFO L225 Difference]: With dead ends: 1620 [2024-11-16 07:33:05,364 INFO L226 Difference]: Without dead ends: 988 [2024-11-16 07:33:05,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-16 07:33:05,377 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 1255 mSDsluCounter, 2849 mSDsCounter, 0 mSdLazyCounter, 5954 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 3358 SdHoareTripleChecker+Invalid, 6229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 5954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-16 07:33:05,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1367 Valid, 3358 Invalid, 6229 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [275 Valid, 5954 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-16 07:33:05,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2024-11-16 07:33:05,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 628. [2024-11-16 07:33:05,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 494 states have (on average 1.631578947368421) internal successors, (806), 512 states have internal predecessors, (806), 107 states have call successors, (107), 26 states have call predecessors, (107), 26 states have return successors, (106), 102 states have call predecessors, (106), 104 states have call successors, (106) [2024-11-16 07:33:05,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 1019 transitions. [2024-11-16 07:33:05,606 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 1019 transitions. Word has length 103 [2024-11-16 07:33:05,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:33:05,607 INFO L471 AbstractCegarLoop]: Abstraction has 628 states and 1019 transitions. [2024-11-16 07:33:05,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:33:05,607 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 1019 transitions. [2024-11-16 07:33:05,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 07:33:05,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:33:05,614 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:33:05,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 07:33:05,615 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:33:05,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:33:05,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1518566955, now seen corresponding path program 1 times [2024-11-16 07:33:05,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:33:05,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558325484] [2024-11-16 07:33:05,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:33:05,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:33:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:06,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:33:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:06,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:06,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:33:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:06,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:06,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:33:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:06,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 07:33:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:06,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-16 07:33:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:06,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 07:33:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:06,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 07:33:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:06,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 07:33:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:06,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 07:33:06,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:06,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:33:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:06,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 07:33:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:06,237 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:33:06,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:33:06,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558325484] [2024-11-16 07:33:06,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558325484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:33:06,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:33:06,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:33:06,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923787592] [2024-11-16 07:33:06,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:33:06,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:33:06,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:33:06,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:33:06,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:33:06,241 INFO L87 Difference]: Start difference. First operand 628 states and 1019 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 07:33:10,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:33:10,957 INFO L93 Difference]: Finished difference Result 1596 states and 2678 transitions. [2024-11-16 07:33:10,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 07:33:10,958 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2024-11-16 07:33:10,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:33:10,963 INFO L225 Difference]: With dead ends: 1596 [2024-11-16 07:33:10,964 INFO L226 Difference]: Without dead ends: 984 [2024-11-16 07:33:10,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:33:10,967 INFO L432 NwaCegarLoop]: 478 mSDtfsCounter, 1785 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 3048 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1896 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 3523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 3048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-16 07:33:10,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1896 Valid, 1684 Invalid, 3523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 3048 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-16 07:33:10,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2024-11-16 07:33:11,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 628. [2024-11-16 07:33:11,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 494 states have (on average 1.6295546558704452) internal successors, (805), 512 states have internal predecessors, (805), 107 states have call successors, (107), 26 states have call predecessors, (107), 26 states have return successors, (106), 102 states have call predecessors, (106), 104 states have call successors, (106) [2024-11-16 07:33:11,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 1018 transitions. [2024-11-16 07:33:11,095 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 1018 transitions. Word has length 104 [2024-11-16 07:33:11,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:33:11,096 INFO L471 AbstractCegarLoop]: Abstraction has 628 states and 1018 transitions. [2024-11-16 07:33:11,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 07:33:11,096 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 1018 transitions. [2024-11-16 07:33:11,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 07:33:11,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:33:11,098 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:33:11,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 07:33:11,099 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:33:11,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:33:11,099 INFO L85 PathProgramCache]: Analyzing trace with hash -2021597664, now seen corresponding path program 1 times [2024-11-16 07:33:11,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:33:11,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411585698] [2024-11-16 07:33:11,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:33:11,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:33:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:11,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:33:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:11,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:11,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:33:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:11,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:11,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:33:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:11,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 07:33:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:11,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-16 07:33:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:11,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 07:33:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:11,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 07:33:11,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:11,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 07:33:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:11,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 07:33:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:11,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:33:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:11,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 07:33:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:11,581 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:33:11,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:33:11,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411585698] [2024-11-16 07:33:11,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411585698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:33:11,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:33:11,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:33:11,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170053282] [2024-11-16 07:33:11,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:33:11,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:33:11,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:33:11,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:33:11,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:33:11,584 INFO L87 Difference]: Start difference. First operand 628 states and 1018 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 07:33:16,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:33:16,648 INFO L93 Difference]: Finished difference Result 1594 states and 2667 transitions. [2024-11-16 07:33:16,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:33:16,649 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2024-11-16 07:33:16,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:33:16,654 INFO L225 Difference]: With dead ends: 1594 [2024-11-16 07:33:16,654 INFO L226 Difference]: Without dead ends: 951 [2024-11-16 07:33:16,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-16 07:33:16,658 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 1138 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 3231 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 3501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 3231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-16 07:33:16,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1249 Valid, 1771 Invalid, 3501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 3231 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-16 07:33:16,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2024-11-16 07:33:16,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 604. [2024-11-16 07:33:16,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 473 states have (on average 1.6194503171247356) internal successors, (766), 489 states have internal predecessors, (766), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-16 07:33:16,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 975 transitions. [2024-11-16 07:33:16,740 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 975 transitions. Word has length 104 [2024-11-16 07:33:16,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:33:16,740 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 975 transitions. [2024-11-16 07:33:16,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 07:33:16,741 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 975 transitions. [2024-11-16 07:33:16,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-16 07:33:16,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:33:16,743 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:33:16,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 07:33:16,743 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:33:16,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:33:16,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1361460473, now seen corresponding path program 1 times [2024-11-16 07:33:16,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:33:16,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091617389] [2024-11-16 07:33:16,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:33:16,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:33:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:16,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:33:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:17,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:17,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:33:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:17,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:17,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:33:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:17,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 07:33:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:17,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 07:33:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:17,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 07:33:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:17,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:33:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:17,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 07:33:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:17,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 07:33:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:17,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 07:33:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:17,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 07:33:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:17,221 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:33:17,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:33:17,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091617389] [2024-11-16 07:33:17,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091617389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:33:17,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:33:17,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 07:33:17,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234114533] [2024-11-16 07:33:17,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:33:17,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 07:33:17,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:33:17,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 07:33:17,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:33:17,224 INFO L87 Difference]: Start difference. First operand 604 states and 975 transitions. Second operand has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:33:23,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:33:23,203 INFO L93 Difference]: Finished difference Result 1557 states and 2598 transitions. [2024-11-16 07:33:23,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 07:33:23,203 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 105 [2024-11-16 07:33:23,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:33:23,208 INFO L225 Difference]: With dead ends: 1557 [2024-11-16 07:33:23,208 INFO L226 Difference]: Without dead ends: 945 [2024-11-16 07:33:23,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-16 07:33:23,211 INFO L432 NwaCegarLoop]: 503 mSDtfsCounter, 1174 mSDsluCounter, 2791 mSDsCounter, 0 mSdLazyCounter, 5794 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 3294 SdHoareTripleChecker+Invalid, 6064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 5794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-16 07:33:23,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 3294 Invalid, 6064 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [270 Valid, 5794 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-16 07:33:23,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2024-11-16 07:33:23,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 598. [2024-11-16 07:33:23,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 467 states have (on average 1.6124197002141327) internal successors, (753), 483 states have internal predecessors, (753), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-16 07:33:23,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 962 transitions. [2024-11-16 07:33:23,293 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 962 transitions. Word has length 105 [2024-11-16 07:33:23,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:33:23,294 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 962 transitions. [2024-11-16 07:33:23,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:33:23,294 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 962 transitions. [2024-11-16 07:33:23,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 07:33:23,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:33:23,296 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:33:23,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 07:33:23,296 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:33:23,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:33:23,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1734721127, now seen corresponding path program 1 times [2024-11-16 07:33:23,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:33:23,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189518631] [2024-11-16 07:33:23,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:33:23,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:33:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:23,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:33:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:23,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:23,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:33:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:23,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:23,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:33:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:23,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:33:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:23,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:33:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:23,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 07:33:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:23,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:33:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:23,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 07:33:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:23,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 07:33:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:23,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 07:33:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:23,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-16 07:33:23,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:23,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:33:23,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:33:23,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189518631] [2024-11-16 07:33:23,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189518631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:33:23,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:33:23,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:33:23,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988868180] [2024-11-16 07:33:23,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:33:23,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:33:23,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:33:23,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:33:23,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:33:23,739 INFO L87 Difference]: Start difference. First operand 598 states and 962 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 07:33:28,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:33:28,040 INFO L93 Difference]: Finished difference Result 1527 states and 2547 transitions. [2024-11-16 07:33:28,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 07:33:28,040 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 106 [2024-11-16 07:33:28,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:33:28,045 INFO L225 Difference]: With dead ends: 1527 [2024-11-16 07:33:28,045 INFO L226 Difference]: Without dead ends: 945 [2024-11-16 07:33:28,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:33:28,048 INFO L432 NwaCegarLoop]: 505 mSDtfsCounter, 1666 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 2998 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1777 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 3466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 2998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-16 07:33:28,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1777 Valid, 1776 Invalid, 3466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 2998 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-16 07:33:28,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2024-11-16 07:33:28,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 598. [2024-11-16 07:33:28,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 467 states have (on average 1.6102783725910064) internal successors, (752), 483 states have internal predecessors, (752), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-16 07:33:28,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 961 transitions. [2024-11-16 07:33:28,135 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 961 transitions. Word has length 106 [2024-11-16 07:33:28,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:33:28,135 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 961 transitions. [2024-11-16 07:33:28,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 07:33:28,135 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 961 transitions. [2024-11-16 07:33:28,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 07:33:28,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:33:28,137 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:33:28,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 07:33:28,137 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:33:28,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:33:28,138 INFO L85 PathProgramCache]: Analyzing trace with hash -306226610, now seen corresponding path program 1 times [2024-11-16 07:33:28,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:33:28,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802126954] [2024-11-16 07:33:28,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:33:28,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:33:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:28,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:33:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:28,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:28,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:33:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:28,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:28,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:33:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:28,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 07:33:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:28,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 07:33:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:28,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:33:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:28,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 07:33:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:28,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 07:33:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:28,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 07:33:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:28,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 07:33:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:28,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-16 07:33:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:28,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:33:28,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:33:28,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802126954] [2024-11-16 07:33:28,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802126954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:33:28,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:33:28,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 07:33:28,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663183473] [2024-11-16 07:33:28,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:33:28,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 07:33:28,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:33:28,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 07:33:28,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:33:28,610 INFO L87 Difference]: Start difference. First operand 598 states and 961 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:33:34,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:33:34,099 INFO L93 Difference]: Finished difference Result 1545 states and 2567 transitions. [2024-11-16 07:33:34,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 07:33:34,099 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 107 [2024-11-16 07:33:34,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:33:34,103 INFO L225 Difference]: With dead ends: 1545 [2024-11-16 07:33:34,103 INFO L226 Difference]: Without dead ends: 939 [2024-11-16 07:33:34,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-16 07:33:34,107 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 1148 mSDsluCounter, 2742 mSDsCounter, 0 mSdLazyCounter, 5645 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 3237 SdHoareTripleChecker+Invalid, 5915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 5645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:33:34,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 3237 Invalid, 5915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 5645 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-16 07:33:34,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2024-11-16 07:33:34,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 592. [2024-11-16 07:33:34,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 461 states have (on average 1.6030368763557483) internal successors, (739), 477 states have internal predecessors, (739), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-16 07:33:34,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 948 transitions. [2024-11-16 07:33:34,204 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 948 transitions. Word has length 107 [2024-11-16 07:33:34,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:33:34,204 INFO L471 AbstractCegarLoop]: Abstraction has 592 states and 948 transitions. [2024-11-16 07:33:34,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:33:34,204 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 948 transitions. [2024-11-16 07:33:34,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 07:33:34,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:33:34,206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:33:34,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 07:33:34,207 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:33:34,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:33:34,207 INFO L85 PathProgramCache]: Analyzing trace with hash -439023992, now seen corresponding path program 1 times [2024-11-16 07:33:34,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:33:34,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570523844] [2024-11-16 07:33:34,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:33:34,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:33:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:34,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:33:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:34,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:34,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:33:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:34,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:34,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:33:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:34,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 07:33:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:34,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 07:33:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:34,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 07:33:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:34,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 07:33:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:34,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 07:33:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:34,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 07:33:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:34,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 07:33:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:34,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 07:33:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:34,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:33:34,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:33:34,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570523844] [2024-11-16 07:33:34,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570523844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:33:34,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:33:34,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:33:34,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331843882] [2024-11-16 07:33:34,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:33:34,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:33:34,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:33:34,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:33:34,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:33:34,652 INFO L87 Difference]: Start difference. First operand 592 states and 948 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 07:33:38,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:33:38,694 INFO L93 Difference]: Finished difference Result 1515 states and 2518 transitions. [2024-11-16 07:33:38,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 07:33:38,695 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2024-11-16 07:33:38,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:33:38,699 INFO L225 Difference]: With dead ends: 1515 [2024-11-16 07:33:38,699 INFO L226 Difference]: Without dead ends: 939 [2024-11-16 07:33:38,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:33:38,702 INFO L432 NwaCegarLoop]: 483 mSDtfsCounter, 1103 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 3018 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 3287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 3018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-16 07:33:38,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1213 Valid, 1746 Invalid, 3287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 3018 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-16 07:33:38,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2024-11-16 07:33:38,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 592. [2024-11-16 07:33:38,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 461 states have (on average 1.6008676789587852) internal successors, (738), 477 states have internal predecessors, (738), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-16 07:33:38,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 947 transitions. [2024-11-16 07:33:38,831 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 947 transitions. Word has length 108 [2024-11-16 07:33:38,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:33:38,831 INFO L471 AbstractCegarLoop]: Abstraction has 592 states and 947 transitions. [2024-11-16 07:33:38,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 07:33:38,831 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 947 transitions. [2024-11-16 07:33:38,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-16 07:33:38,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:33:38,834 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:33:38,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 07:33:38,834 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:33:38,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:33:38,834 INFO L85 PathProgramCache]: Analyzing trace with hash -323426736, now seen corresponding path program 1 times [2024-11-16 07:33:38,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:33:38,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967908142] [2024-11-16 07:33:38,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:33:38,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:33:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:39,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:33:39,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:39,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:39,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:33:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:39,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:39,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:39,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:33:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:39,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-16 07:33:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:39,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 07:33:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:39,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 07:33:39,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:39,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 07:33:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:39,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 07:33:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:39,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 07:33:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:39,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-16 07:33:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:39,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 07:33:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:39,333 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:33:39,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:33:39,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967908142] [2024-11-16 07:33:39,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967908142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:33:39,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:33:39,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 07:33:39,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889221764] [2024-11-16 07:33:39,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:33:39,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 07:33:39,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:33:39,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 07:33:39,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:33:39,335 INFO L87 Difference]: Start difference. First operand 592 states and 947 transitions. Second operand has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:33:45,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:33:45,323 INFO L93 Difference]: Finished difference Result 1533 states and 2536 transitions. [2024-11-16 07:33:45,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 07:33:45,324 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 109 [2024-11-16 07:33:45,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:33:45,336 INFO L225 Difference]: With dead ends: 1533 [2024-11-16 07:33:45,336 INFO L226 Difference]: Without dead ends: 933 [2024-11-16 07:33:45,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-16 07:33:45,342 INFO L432 NwaCegarLoop]: 504 mSDtfsCounter, 1119 mSDsluCounter, 2789 mSDsCounter, 0 mSdLazyCounter, 5612 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 3293 SdHoareTripleChecker+Invalid, 5880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 5612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-16 07:33:45,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 3293 Invalid, 5880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 5612 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-16 07:33:45,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2024-11-16 07:33:45,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 586. [2024-11-16 07:33:45,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 455 states have (on average 1.5934065934065933) internal successors, (725), 471 states have internal predecessors, (725), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-16 07:33:45,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 934 transitions. [2024-11-16 07:33:45,512 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 934 transitions. Word has length 109 [2024-11-16 07:33:45,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:33:45,516 INFO L471 AbstractCegarLoop]: Abstraction has 586 states and 934 transitions. [2024-11-16 07:33:45,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:33:45,516 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 934 transitions. [2024-11-16 07:33:45,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-16 07:33:45,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:33:45,518 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:33:45,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 07:33:45,518 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:33:45,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:33:45,518 INFO L85 PathProgramCache]: Analyzing trace with hash 2046242584, now seen corresponding path program 1 times [2024-11-16 07:33:45,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:33:45,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216470951] [2024-11-16 07:33:45,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:33:45,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:33:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:45,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:33:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:45,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:45,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:33:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:45,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:45,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:33:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:45,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-16 07:33:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:45,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 07:33:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:45,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 07:33:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:45,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 07:33:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:45,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 07:33:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:46,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 07:33:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:46,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-16 07:33:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:46,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 07:33:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:46,016 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:33:46,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:33:46,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216470951] [2024-11-16 07:33:46,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216470951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:33:46,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:33:46,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 07:33:46,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761607596] [2024-11-16 07:33:46,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:33:46,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 07:33:46,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:33:46,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 07:33:46,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:33:46,019 INFO L87 Difference]: Start difference. First operand 586 states and 934 transitions. Second operand has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:33:51,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:33:51,061 INFO L93 Difference]: Finished difference Result 1503 states and 2489 transitions. [2024-11-16 07:33:51,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 07:33:51,061 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 109 [2024-11-16 07:33:51,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:33:51,065 INFO L225 Difference]: With dead ends: 1503 [2024-11-16 07:33:51,065 INFO L226 Difference]: Without dead ends: 933 [2024-11-16 07:33:51,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-16 07:33:51,067 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 1627 mSDsluCounter, 2679 mSDsCounter, 0 mSdLazyCounter, 5275 mSolverCounterSat, 480 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1737 SdHoareTripleChecker+Valid, 3171 SdHoareTripleChecker+Invalid, 5755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 480 IncrementalHoareTripleChecker+Valid, 5275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-16 07:33:51,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1737 Valid, 3171 Invalid, 5755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [480 Valid, 5275 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-16 07:33:51,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2024-11-16 07:33:51,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 586. [2024-11-16 07:33:51,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 455 states have (on average 1.591208791208791) internal successors, (724), 471 states have internal predecessors, (724), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-16 07:33:51,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 933 transitions. [2024-11-16 07:33:51,168 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 933 transitions. Word has length 109 [2024-11-16 07:33:51,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:33:51,168 INFO L471 AbstractCegarLoop]: Abstraction has 586 states and 933 transitions. [2024-11-16 07:33:51,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:33:51,169 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 933 transitions. [2024-11-16 07:33:51,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-16 07:33:51,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:33:51,170 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:33:51,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 07:33:51,171 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:33:51,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:33:51,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1940152381, now seen corresponding path program 1 times [2024-11-16 07:33:51,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:33:51,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092224236] [2024-11-16 07:33:51,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:33:51,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:33:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:51,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:33:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:51,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:51,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:33:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:51,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:51,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:33:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:51,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 07:33:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:51,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 07:33:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:51,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 07:33:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:51,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:33:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:51,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 07:33:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:51,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 07:33:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:51,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 07:33:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:51,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 07:33:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:51,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:33:51,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:33:51,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092224236] [2024-11-16 07:33:51,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092224236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:33:51,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:33:51,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 07:33:51,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849484781] [2024-11-16 07:33:51,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:33:51,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 07:33:51,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:33:51,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 07:33:51,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:33:51,691 INFO L87 Difference]: Start difference. First operand 586 states and 933 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:33:57,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:33:57,121 INFO L93 Difference]: Finished difference Result 1509 states and 2493 transitions. [2024-11-16 07:33:57,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 07:33:57,122 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2024-11-16 07:33:57,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:33:57,126 INFO L225 Difference]: With dead ends: 1509 [2024-11-16 07:33:57,126 INFO L226 Difference]: Without dead ends: 939 [2024-11-16 07:33:57,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2024-11-16 07:33:57,128 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 1616 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 5308 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1726 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 5781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 5308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:33:57,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1726 Valid, 3049 Invalid, 5781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 5308 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-16 07:33:57,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2024-11-16 07:33:57,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 592. [2024-11-16 07:33:57,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 461 states have (on average 1.5835140997830803) internal successors, (730), 477 states have internal predecessors, (730), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-16 07:33:57,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 939 transitions. [2024-11-16 07:33:57,234 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 939 transitions. Word has length 110 [2024-11-16 07:33:57,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:33:57,234 INFO L471 AbstractCegarLoop]: Abstraction has 592 states and 939 transitions. [2024-11-16 07:33:57,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:33:57,235 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 939 transitions. [2024-11-16 07:33:57,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-16 07:33:57,236 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:33:57,236 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:33:57,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 07:33:57,237 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:33:57,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:33:57,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1073100156, now seen corresponding path program 1 times [2024-11-16 07:33:57,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:33:57,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35297661] [2024-11-16 07:33:57,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:33:57,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:33:57,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:57,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:33:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:57,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:57,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:33:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:57,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:33:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:57,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:33:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:57,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 07:33:57,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:57,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 07:33:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:57,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 07:33:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:57,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:33:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:57,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 07:33:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:57,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 07:33:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:57,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 07:33:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:57,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 07:33:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:33:57,655 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:33:57,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:33:57,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35297661] [2024-11-16 07:33:57,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35297661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:33:57,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:33:57,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 07:33:57,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522788667] [2024-11-16 07:33:57,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:33:57,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 07:33:57,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:33:57,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 07:33:57,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:33:57,657 INFO L87 Difference]: Start difference. First operand 592 states and 939 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:34:02,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:02,861 INFO L93 Difference]: Finished difference Result 1518 states and 2500 transitions. [2024-11-16 07:34:02,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 07:34:02,862 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2024-11-16 07:34:02,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:02,866 INFO L225 Difference]: With dead ends: 1518 [2024-11-16 07:34:02,866 INFO L226 Difference]: Without dead ends: 933 [2024-11-16 07:34:02,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-16 07:34:02,868 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 2180 mSDsluCounter, 2637 mSDsCounter, 0 mSdLazyCounter, 5223 mSolverCounterSat, 677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2291 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 5900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 677 IncrementalHoareTripleChecker+Valid, 5223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:02,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2291 Valid, 3130 Invalid, 5900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [677 Valid, 5223 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-16 07:34:02,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2024-11-16 07:34:02,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 586. [2024-11-16 07:34:02,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 455 states have (on average 1.589010989010989) internal successors, (723), 471 states have internal predecessors, (723), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-16 07:34:02,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 932 transitions. [2024-11-16 07:34:02,979 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 932 transitions. Word has length 110 [2024-11-16 07:34:02,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:02,979 INFO L471 AbstractCegarLoop]: Abstraction has 586 states and 932 transitions. [2024-11-16 07:34:02,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:34:02,979 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 932 transitions. [2024-11-16 07:34:02,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 07:34:02,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:02,981 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:34:02,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 07:34:02,981 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:02,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:02,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1273117547, now seen corresponding path program 1 times [2024-11-16 07:34:02,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:02,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104314046] [2024-11-16 07:34:02,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:02,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:03,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:34:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:03,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:34:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:03,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:34:03,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:03,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:34:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:03,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:34:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:03,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:34:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:03,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 07:34:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:03,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 07:34:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:03,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 07:34:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:03,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 07:34:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:03,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 07:34:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:03,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 07:34:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:03,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 07:34:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:03,568 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 07:34:03,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:03,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104314046] [2024-11-16 07:34:03,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104314046] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:34:03,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955846816] [2024-11-16 07:34:03,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:03,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:34:03,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:34:03,570 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:34:03,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 07:34:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:03,837 INFO L255 TraceCheckSpWp]: Trace formula consists of 1631 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 07:34:03,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:34:03,902 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 07:34:03,903 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:34:03,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955846816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:03,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:34:03,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-16 07:34:03,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508486099] [2024-11-16 07:34:03,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:03,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 07:34:03,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:03,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 07:34:03,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:34:03,905 INFO L87 Difference]: Start difference. First operand 586 states and 932 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:34:04,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:04,126 INFO L93 Difference]: Finished difference Result 1661 states and 2676 transitions. [2024-11-16 07:34:04,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 07:34:04,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 111 [2024-11-16 07:34:04,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:04,131 INFO L225 Difference]: With dead ends: 1661 [2024-11-16 07:34:04,131 INFO L226 Difference]: Without dead ends: 1093 [2024-11-16 07:34:04,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:34:04,134 INFO L432 NwaCegarLoop]: 989 mSDtfsCounter, 784 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:04,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 1901 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:34:04,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2024-11-16 07:34:04,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1077. [2024-11-16 07:34:04,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 843 states have (on average 1.604982206405694) internal successors, (1353), 874 states have internal predecessors, (1353), 187 states have call successors, (187), 47 states have call predecessors, (187), 46 states have return successors, (189), 181 states have call predecessors, (189), 184 states have call successors, (189) [2024-11-16 07:34:04,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1729 transitions. [2024-11-16 07:34:04,346 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1729 transitions. Word has length 111 [2024-11-16 07:34:04,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:04,347 INFO L471 AbstractCegarLoop]: Abstraction has 1077 states and 1729 transitions. [2024-11-16 07:34:04,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:34:04,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1729 transitions. [2024-11-16 07:34:04,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 07:34:04,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:04,350 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:34:04,373 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 07:34:04,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-16 07:34:04,553 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:04,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:04,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1741785244, now seen corresponding path program 1 times [2024-11-16 07:34:04,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:04,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423021621] [2024-11-16 07:34:04,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:04,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:04,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:34:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:04,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:34:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:04,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:34:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:04,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:34:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:04,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:34:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:04,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:34:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:05,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 07:34:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:05,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 07:34:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:05,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 07:34:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:05,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 07:34:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:05,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 07:34:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:05,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 07:34:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:05,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 07:34:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:05,037 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:34:05,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:05,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423021621] [2024-11-16 07:34:05,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423021621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:05,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:34:05,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 07:34:05,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604073030] [2024-11-16 07:34:05,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:05,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 07:34:05,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:05,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 07:34:05,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:34:05,039 INFO L87 Difference]: Start difference. First operand 1077 states and 1729 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:34:14,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:14,105 INFO L93 Difference]: Finished difference Result 4336 states and 7486 transitions. [2024-11-16 07:34:14,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 07:34:14,105 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 111 [2024-11-16 07:34:14,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:14,134 INFO L225 Difference]: With dead ends: 4336 [2024-11-16 07:34:14,135 INFO L226 Difference]: Without dead ends: 3277 [2024-11-16 07:34:14,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2024-11-16 07:34:14,147 INFO L432 NwaCegarLoop]: 553 mSDtfsCounter, 2754 mSDsluCounter, 2279 mSDsCounter, 0 mSdLazyCounter, 5390 mSolverCounterSat, 866 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2872 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 6256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 866 IncrementalHoareTripleChecker+Valid, 5390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:14,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2872 Valid, 2832 Invalid, 6256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [866 Valid, 5390 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-11-16 07:34:14,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3277 states. [2024-11-16 07:34:14,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3277 to 2537. [2024-11-16 07:34:14,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2537 states, 1887 states have (on average 1.5855855855855856) internal successors, (2992), 2010 states have internal predecessors, (2992), 537 states have call successors, (537), 88 states have call predecessors, (537), 112 states have return successors, (850), 534 states have call predecessors, (850), 533 states have call successors, (850) [2024-11-16 07:34:14,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2537 states to 2537 states and 4379 transitions. [2024-11-16 07:34:14,868 INFO L78 Accepts]: Start accepts. Automaton has 2537 states and 4379 transitions. Word has length 111 [2024-11-16 07:34:14,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:14,868 INFO L471 AbstractCegarLoop]: Abstraction has 2537 states and 4379 transitions. [2024-11-16 07:34:14,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:34:14,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2537 states and 4379 transitions. [2024-11-16 07:34:14,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-16 07:34:14,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:14,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:34:14,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 07:34:14,872 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:14,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:14,872 INFO L85 PathProgramCache]: Analyzing trace with hash -327406223, now seen corresponding path program 1 times [2024-11-16 07:34:14,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:14,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054551958] [2024-11-16 07:34:14,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:14,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:15,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:34:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:15,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:34:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:15,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:34:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:15,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:34:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:15,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:34:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:15,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:34:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:15,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 07:34:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:15,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 07:34:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:15,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 07:34:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:15,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 07:34:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:15,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-16 07:34:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:15,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 07:34:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:15,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 07:34:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:15,219 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:34:15,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:15,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054551958] [2024-11-16 07:34:15,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054551958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:15,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:34:15,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:34:15,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946607153] [2024-11-16 07:34:15,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:15,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:34:15,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:15,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:34:15,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:34:15,221 INFO L87 Difference]: Start difference. First operand 2537 states and 4379 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 07:34:20,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:20,652 INFO L93 Difference]: Finished difference Result 5767 states and 10168 transitions. [2024-11-16 07:34:20,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:34:20,653 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 113 [2024-11-16 07:34:20,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:20,706 INFO L225 Difference]: With dead ends: 5767 [2024-11-16 07:34:20,706 INFO L226 Difference]: Without dead ends: 3248 [2024-11-16 07:34:20,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-16 07:34:20,740 INFO L432 NwaCegarLoop]: 498 mSDtfsCounter, 1067 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 3018 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 3270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 3018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:20,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 1775 Invalid, 3270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 3018 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-16 07:34:20,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3248 states. [2024-11-16 07:34:21,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3248 to 2541. [2024-11-16 07:34:21,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2541 states, 1890 states have (on average 1.584126984126984) internal successors, (2994), 2013 states have internal predecessors, (2994), 537 states have call successors, (537), 90 states have call predecessors, (537), 113 states have return successors, (842), 533 states have call predecessors, (842), 533 states have call successors, (842) [2024-11-16 07:34:21,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2541 states to 2541 states and 4373 transitions. [2024-11-16 07:34:21,642 INFO L78 Accepts]: Start accepts. Automaton has 2541 states and 4373 transitions. Word has length 113 [2024-11-16 07:34:21,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:21,642 INFO L471 AbstractCegarLoop]: Abstraction has 2541 states and 4373 transitions. [2024-11-16 07:34:21,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 07:34:21,642 INFO L276 IsEmpty]: Start isEmpty. Operand 2541 states and 4373 transitions. [2024-11-16 07:34:21,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-16 07:34:21,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:21,645 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:34:21,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 07:34:21,645 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:21,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:21,646 INFO L85 PathProgramCache]: Analyzing trace with hash -235834828, now seen corresponding path program 1 times [2024-11-16 07:34:21,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:21,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787172491] [2024-11-16 07:34:21,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:21,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:22,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:34:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:22,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:34:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:22,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:34:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:22,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:34:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:22,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:34:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:22,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:34:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:22,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 07:34:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:22,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 07:34:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:22,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 07:34:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:22,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 07:34:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:22,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-16 07:34:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:22,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 07:34:22,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:22,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 07:34:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:22,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 07:34:22,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:22,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787172491] [2024-11-16 07:34:22,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787172491] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:34:22,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553002132] [2024-11-16 07:34:22,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:22,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:34:22,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:34:22,298 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:34:22,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 07:34:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:22,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 1635 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 07:34:22,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:34:22,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 07:34:22,708 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:34:22,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553002132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:22,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:34:22,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-16 07:34:22,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462537753] [2024-11-16 07:34:22,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:22,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 07:34:22,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:22,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 07:34:22,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:34:22,709 INFO L87 Difference]: Start difference. First operand 2541 states and 4373 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:34:24,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:24,256 INFO L93 Difference]: Finished difference Result 7417 states and 12955 transitions. [2024-11-16 07:34:24,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 07:34:24,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 114 [2024-11-16 07:34:24,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:24,279 INFO L225 Difference]: With dead ends: 7417 [2024-11-16 07:34:24,279 INFO L226 Difference]: Without dead ends: 4895 [2024-11-16 07:34:24,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:34:24,290 INFO L432 NwaCegarLoop]: 960 mSDtfsCounter, 775 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:24,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 1796 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 07:34:24,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4895 states. [2024-11-16 07:34:25,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4895 to 4857. [2024-11-16 07:34:25,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4857 states, 3599 states have (on average 1.558766323978883) internal successors, (5610), 3843 states have internal predecessors, (5610), 1036 states have call successors, (1036), 174 states have call predecessors, (1036), 221 states have return successors, (1726), 1031 states have call predecessors, (1726), 1030 states have call successors, (1726) [2024-11-16 07:34:25,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4857 states to 4857 states and 8372 transitions. [2024-11-16 07:34:25,910 INFO L78 Accepts]: Start accepts. Automaton has 4857 states and 8372 transitions. Word has length 114 [2024-11-16 07:34:25,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:25,910 INFO L471 AbstractCegarLoop]: Abstraction has 4857 states and 8372 transitions. [2024-11-16 07:34:25,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 07:34:25,911 INFO L276 IsEmpty]: Start isEmpty. Operand 4857 states and 8372 transitions. [2024-11-16 07:34:25,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 07:34:25,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:25,914 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:34:25,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 07:34:26,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-16 07:34:26,116 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:26,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:26,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2037912734, now seen corresponding path program 1 times [2024-11-16 07:34:26,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:26,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550596103] [2024-11-16 07:34:26,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:26,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:26,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:34:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:26,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:34:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:26,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:34:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:26,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:34:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:26,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:34:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:26,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:34:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:26,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 07:34:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:26,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 07:34:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:26,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 07:34:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:26,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 07:34:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:26,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:26,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 07:34:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:26,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 07:34:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:26,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 07:34:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:26,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 07:34:26,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:26,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550596103] [2024-11-16 07:34:26,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550596103] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:34:26,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557506783] [2024-11-16 07:34:26,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:26,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:34:26,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:34:26,661 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:34:26,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 07:34:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:26,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 1650 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:34:26,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:34:26,949 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 07:34:26,949 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:34:26,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557506783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:26,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:34:26,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 10 [2024-11-16 07:34:26,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308585304] [2024-11-16 07:34:26,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:26,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 07:34:26,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:26,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 07:34:26,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:34:26,950 INFO L87 Difference]: Start difference. First operand 4857 states and 8372 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)