./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec2_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb68ca90-92f1-4ec5-8129-33bacae93077/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb68ca90-92f1-4ec5-8129-33bacae93077/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb68ca90-92f1-4ec5-8129-33bacae93077/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb68ca90-92f1-4ec5-8129-33bacae93077/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec2_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb68ca90-92f1-4ec5-8129-33bacae93077/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb68ca90-92f1-4ec5-8129-33bacae93077/bin/uautomizer-verify-84ZbGMXZE1 --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 c39b0b488ad07619ca8d4ed9273747459006984c072c0894ad54004ae965569d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:08:05,572 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:08:05,634 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb68ca90-92f1-4ec5-8129-33bacae93077/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 13:08:05,639 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:08:05,640 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:08:05,663 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:08:05,664 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:08:05,664 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:08:05,664 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:08:05,664 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:08:05,665 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:08:05,665 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:08:05,665 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:08:05,665 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:08:05,665 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:08:05,665 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:08:05,666 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:08:05,666 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:08:05,666 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:08:05,666 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:08:05,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:08:05,666 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:08:05,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:08:05,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:08:05,666 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:08:05,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:08:05,666 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:08:05,667 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:08:05,667 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:08:05,667 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:08:05,667 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:08:05,667 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:08:05,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:08:05,667 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:08:05,667 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:08:05,667 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:08:05,667 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:08:05,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:08:05,668 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:08:05,668 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:08:05,668 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:08:05,668 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:08:05,668 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:08:05,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:08:05,668 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:08:05,668 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:08:05,668 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:08:05,668 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:08:05,668 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb68ca90-92f1-4ec5-8129-33bacae93077/bin/uautomizer-verify-84ZbGMXZE1 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 -> c39b0b488ad07619ca8d4ed9273747459006984c072c0894ad54004ae965569d [2024-12-02 13:08:05,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:08:05,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:08:05,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:08:05,955 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:08:05,956 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:08:05,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb68ca90-92f1-4ec5-8129-33bacae93077/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/elevator_spec2_product26.cil.c [2024-12-02 13:08:08,683 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb68ca90-92f1-4ec5-8129-33bacae93077/bin/uautomizer-verify-84ZbGMXZE1/data/c0f30628b/dda3d38426ea42d68eb176feed80bd4c/FLAGb5ac491ba [2024-12-02 13:08:09,009 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:08:09,010 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb68ca90-92f1-4ec5-8129-33bacae93077/sv-benchmarks/c/product-lines/elevator_spec2_product26.cil.c [2024-12-02 13:08:09,032 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb68ca90-92f1-4ec5-8129-33bacae93077/bin/uautomizer-verify-84ZbGMXZE1/data/c0f30628b/dda3d38426ea42d68eb176feed80bd4c/FLAGb5ac491ba [2024-12-02 13:08:09,047 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb68ca90-92f1-4ec5-8129-33bacae93077/bin/uautomizer-verify-84ZbGMXZE1/data/c0f30628b/dda3d38426ea42d68eb176feed80bd4c [2024-12-02 13:08:09,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:08:09,050 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:08:09,052 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:08:09,052 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:08:09,058 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:08:09,059 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:08:09" (1/1) ... [2024-12-02 13:08:09,060 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aaa3447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:09, skipping insertion in model container [2024-12-02 13:08:09,060 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:08:09" (1/1) ... [2024-12-02 13:08:09,107 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:08:09,549 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb68ca90-92f1-4ec5-8129-33bacae93077/sv-benchmarks/c/product-lines/elevator_spec2_product26.cil.c[70298,70311] [2024-12-02 13:08:09,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:08:09,572 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:08:09,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-12-02 13:08:09,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [412] [2024-12-02 13:08:09,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1940] [2024-12-02 13:08:09,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2058] [2024-12-02 13:08:09,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2070] [2024-12-02 13:08:09,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2436] [2024-12-02 13:08:09,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2471] [2024-12-02 13:08:09,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [3132] [2024-12-02 13:08:09,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3314] [2024-12-02 13:08:09,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3323] [2024-12-02 13:08:09,695 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb68ca90-92f1-4ec5-8129-33bacae93077/sv-benchmarks/c/product-lines/elevator_spec2_product26.cil.c[70298,70311] [2024-12-02 13:08:09,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:08:09,725 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:08:09,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:09 WrapperNode [2024-12-02 13:08:09,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:08:09,727 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:08:09,727 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:08:09,727 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:08:09,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:09" (1/1) ... [2024-12-02 13:08:09,756 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:09" (1/1) ... [2024-12-02 13:08:09,793 INFO L138 Inliner]: procedures = 93, calls = 340, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 859 [2024-12-02 13:08:09,793 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:08:09,794 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:08:09,794 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:08:09,794 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:08:09,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:09" (1/1) ... [2024-12-02 13:08:09,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:09" (1/1) ... [2024-12-02 13:08:09,811 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:09" (1/1) ... [2024-12-02 13:08:09,832 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-12-02 13:08:09,833 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:09" (1/1) ... [2024-12-02 13:08:09,833 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:09" (1/1) ... [2024-12-02 13:08:09,844 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:09" (1/1) ... [2024-12-02 13:08:09,846 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:09" (1/1) ... [2024-12-02 13:08:09,854 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:09" (1/1) ... [2024-12-02 13:08:09,858 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:09" (1/1) ... [2024-12-02 13:08:09,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:09" (1/1) ... [2024-12-02 13:08:09,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:08:09,867 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:08:09,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:08:09,867 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:08:09,868 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:09" (1/1) ... [2024-12-02 13:08:09,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:08:09,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb68ca90-92f1-4ec5-8129-33bacae93077/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:08:09,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb68ca90-92f1-4ec5-8129-33bacae93077/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:08:09,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb68ca90-92f1-4ec5-8129-33bacae93077/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:08:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:08:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-12-02 13:08:09,951 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-12-02 13:08:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-12-02 13:08:09,951 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-12-02 13:08:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-12-02 13:08:09,951 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-12-02 13:08:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-12-02 13:08:09,951 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-12-02 13:08:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-12-02 13:08:09,952 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-12-02 13:08:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 13:08:09,952 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 13:08:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 13:08:09,952 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 13:08:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-12-02 13:08:09,952 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-12-02 13:08:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-12-02 13:08:09,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-12-02 13:08:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-12-02 13:08:09,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-12-02 13:08:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-12-02 13:08:09,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-12-02 13:08:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-12-02 13:08:09,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-12-02 13:08:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-12-02 13:08:09,953 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-12-02 13:08:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-12-02 13:08:09,953 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-12-02 13:08:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__empty [2024-12-02 13:08:09,953 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__empty [2024-12-02 13:08:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-12-02 13:08:09,953 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-12-02 13:08:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-12-02 13:08:09,954 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-12-02 13:08:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-12-02 13:08:09,954 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-12-02 13:08:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:08:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 13:08:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 13:08:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 13:08:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 13:08:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 13:08:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 13:08:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 13:08:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 13:08:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 13:08:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 13:08:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 13:08:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 13:08:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 13:08:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 13:08:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 13:08:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 13:08:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 13:08:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 13:08:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 13:08:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-12-02 13:08:09,955 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-12-02 13:08:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-12-02 13:08:09,955 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-12-02 13:08:09,956 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-12-02 13:08:09,956 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-12-02 13:08:09,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:08:09,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:08:09,956 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-12-02 13:08:09,956 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-12-02 13:08:10,144 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:08:10,147 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:08:11,304 INFO L? ?]: Removed 441 outVars from TransFormulas that were not future-live. [2024-12-02 13:08:11,304 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:08:11,325 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:08:11,325 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:08:11,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:08:11 BoogieIcfgContainer [2024-12-02 13:08:11,325 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:08:11,328 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:08:11,328 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:08:11,333 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:08:11,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:08:09" (1/3) ... [2024-12-02 13:08:11,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f4376ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:08:11, skipping insertion in model container [2024-12-02 13:08:11,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:09" (2/3) ... [2024-12-02 13:08:11,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f4376ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:08:11, skipping insertion in model container [2024-12-02 13:08:11,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:08:11" (3/3) ... [2024-12-02 13:08:11,335 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product26.cil.c [2024-12-02 13:08:11,347 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:08:11,349 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec2_product26.cil.c that has 23 procedures, 549 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 13:08:11,413 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:08:11,425 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;@1fba24a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:08:11,425 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:08:11,430 INFO L276 IsEmpty]: Start isEmpty. Operand has 549 states, 434 states have (on average 1.7096774193548387) internal successors, (742), 457 states have internal predecessors, (742), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 84 states have call predecessors, (91), 91 states have call successors, (91) [2024-12-02 13:08:11,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 13:08:11,442 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:11,443 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:11,444 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:11,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:11,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1083638953, now seen corresponding path program 1 times [2024-12-02 13:08:11,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:11,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009611064] [2024-12-02 13:08:11,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:11,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:11,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:11,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:11,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009611064] [2024-12-02 13:08:11,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009611064] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:11,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:11,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:08:11,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283065155] [2024-12-02 13:08:11,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:11,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:08:11,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:11,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:08:11,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:08:11,962 INFO L87 Difference]: Start difference. First operand has 549 states, 434 states have (on average 1.7096774193548387) internal successors, (742), 457 states have internal predecessors, (742), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 84 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:12,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:12,109 INFO L93 Difference]: Finished difference Result 1078 states and 1823 transitions. [2024-12-02 13:08:12,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:08:12,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2024-12-02 13:08:12,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:12,130 INFO L225 Difference]: With dead ends: 1078 [2024-12-02 13:08:12,130 INFO L226 Difference]: Without dead ends: 541 [2024-12-02 13:08:12,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:08:12,141 INFO L435 NwaCegarLoop]: 903 mSDtfsCounter, 5 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2705 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:12,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2705 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:08:12,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-12-02 13:08:12,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2024-12-02 13:08:12,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 428 states have (on average 1.705607476635514) internal successors, (730), 449 states have internal predecessors, (730), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 13:08:12,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 907 transitions. [2024-12-02 13:08:12,220 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 907 transitions. Word has length 56 [2024-12-02 13:08:12,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:12,220 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 907 transitions. [2024-12-02 13:08:12,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:12,220 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 907 transitions. [2024-12-02 13:08:12,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 13:08:12,224 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:12,224 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:12,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:08:12,225 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:12,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:12,226 INFO L85 PathProgramCache]: Analyzing trace with hash -197698142, now seen corresponding path program 1 times [2024-12-02 13:08:12,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:12,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286892752] [2024-12-02 13:08:12,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:12,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:12,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:12,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:12,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286892752] [2024-12-02 13:08:12,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286892752] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:12,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:12,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:08:12,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679447088] [2024-12-02 13:08:12,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:12,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:08:12,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:12,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:08:12,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:08:12,443 INFO L87 Difference]: Start difference. First operand 541 states and 907 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:12,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:12,533 INFO L93 Difference]: Finished difference Result 1064 states and 1791 transitions. [2024-12-02 13:08:12,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:08:12,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 58 [2024-12-02 13:08:12,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:12,541 INFO L225 Difference]: With dead ends: 1064 [2024-12-02 13:08:12,541 INFO L226 Difference]: Without dead ends: 541 [2024-12-02 13:08:12,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:08:12,545 INFO L435 NwaCegarLoop]: 896 mSDtfsCounter, 4 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2684 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:12,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2684 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:08:12,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-12-02 13:08:12,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2024-12-02 13:08:12,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 428 states have (on average 1.7032710280373833) internal successors, (729), 449 states have internal predecessors, (729), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 13:08:12,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 906 transitions. [2024-12-02 13:08:12,582 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 906 transitions. Word has length 58 [2024-12-02 13:08:12,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:12,582 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 906 transitions. [2024-12-02 13:08:12,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:12,583 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 906 transitions. [2024-12-02 13:08:12,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 13:08:12,586 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:12,586 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:12,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:08:12,586 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:12,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:12,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1548622430, now seen corresponding path program 1 times [2024-12-02 13:08:12,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:12,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953987514] [2024-12-02 13:08:12,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:12,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:12,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:12,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:12,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953987514] [2024-12-02 13:08:12,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953987514] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:12,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:12,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:08:12,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400118729] [2024-12-02 13:08:12,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:12,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:08:12,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:12,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:08:12,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:08:12,792 INFO L87 Difference]: Start difference. First operand 541 states and 906 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:12,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:12,876 INFO L93 Difference]: Finished difference Result 1064 states and 1790 transitions. [2024-12-02 13:08:12,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:08:12,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 59 [2024-12-02 13:08:12,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:12,884 INFO L225 Difference]: With dead ends: 1064 [2024-12-02 13:08:12,884 INFO L226 Difference]: Without dead ends: 541 [2024-12-02 13:08:12,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:08:12,889 INFO L435 NwaCegarLoop]: 896 mSDtfsCounter, 3 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2684 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:12,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2684 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:08:12,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-12-02 13:08:12,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2024-12-02 13:08:12,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 428 states have (on average 1.7009345794392523) internal successors, (728), 449 states have internal predecessors, (728), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 13:08:12,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 905 transitions. [2024-12-02 13:08:12,928 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 905 transitions. Word has length 59 [2024-12-02 13:08:12,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:12,928 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 905 transitions. [2024-12-02 13:08:12,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:12,929 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 905 transitions. [2024-12-02 13:08:12,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-12-02 13:08:12,931 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:12,931 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:12,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:08:12,931 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:12,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:12,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1309370278, now seen corresponding path program 1 times [2024-12-02 13:08:12,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:12,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248603906] [2024-12-02 13:08:12,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:12,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:13,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:13,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:13,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248603906] [2024-12-02 13:08:13,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248603906] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:13,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:13,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:08:13,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135535965] [2024-12-02 13:08:13,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:13,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:08:13,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:13,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:08:13,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:08:13,149 INFO L87 Difference]: Start difference. First operand 541 states and 905 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:13,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:13,217 INFO L93 Difference]: Finished difference Result 1064 states and 1789 transitions. [2024-12-02 13:08:13,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:08:13,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 60 [2024-12-02 13:08:13,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:13,223 INFO L225 Difference]: With dead ends: 1064 [2024-12-02 13:08:13,224 INFO L226 Difference]: Without dead ends: 541 [2024-12-02 13:08:13,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:08:13,228 INFO L435 NwaCegarLoop]: 896 mSDtfsCounter, 2 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2684 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:13,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2684 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:08:13,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-12-02 13:08:13,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2024-12-02 13:08:13,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 428 states have (on average 1.6985981308411215) internal successors, (727), 449 states have internal predecessors, (727), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 13:08:13,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 904 transitions. [2024-12-02 13:08:13,261 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 904 transitions. Word has length 60 [2024-12-02 13:08:13,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:13,261 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 904 transitions. [2024-12-02 13:08:13,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:13,261 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 904 transitions. [2024-12-02 13:08:13,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-12-02 13:08:13,263 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:13,263 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:13,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:08:13,263 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:13,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:13,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1499803686, now seen corresponding path program 1 times [2024-12-02 13:08:13,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:13,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675595592] [2024-12-02 13:08:13,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:13,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:13,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:13,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:13,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675595592] [2024-12-02 13:08:13,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675595592] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:13,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:13,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:08:13,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052745784] [2024-12-02 13:08:13,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:13,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:08:13,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:13,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:08:13,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:08:13,438 INFO L87 Difference]: Start difference. First operand 541 states and 904 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:13,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:13,507 INFO L93 Difference]: Finished difference Result 1064 states and 1788 transitions. [2024-12-02 13:08:13,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:08:13,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 61 [2024-12-02 13:08:13,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:13,514 INFO L225 Difference]: With dead ends: 1064 [2024-12-02 13:08:13,514 INFO L226 Difference]: Without dead ends: 541 [2024-12-02 13:08:13,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:08:13,518 INFO L435 NwaCegarLoop]: 896 mSDtfsCounter, 1 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2684 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:13,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2684 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:08:13,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-12-02 13:08:13,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2024-12-02 13:08:13,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 428 states have (on average 1.6962616822429906) internal successors, (726), 449 states have internal predecessors, (726), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 13:08:13,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 903 transitions. [2024-12-02 13:08:13,552 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 903 transitions. Word has length 61 [2024-12-02 13:08:13,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:13,552 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 903 transitions. [2024-12-02 13:08:13,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:13,553 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 903 transitions. [2024-12-02 13:08:13,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 13:08:13,554 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:13,555 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:13,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:08:13,555 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:13,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:13,555 INFO L85 PathProgramCache]: Analyzing trace with hash 600277418, now seen corresponding path program 1 times [2024-12-02 13:08:13,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:13,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958102105] [2024-12-02 13:08:13,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:13,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:13,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:13,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:13,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958102105] [2024-12-02 13:08:13,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958102105] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:13,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:13,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:08:13,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601489799] [2024-12-02 13:08:13,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:13,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:08:13,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:13,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:08:13,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:08:13,840 INFO L87 Difference]: Start difference. First operand 541 states and 903 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-12-02 13:08:13,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:13,986 INFO L93 Difference]: Finished difference Result 1030 states and 1720 transitions. [2024-12-02 13:08:13,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 13:08:13,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 62 [2024-12-02 13:08:13,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:13,993 INFO L225 Difference]: With dead ends: 1030 [2024-12-02 13:08:13,993 INFO L226 Difference]: Without dead ends: 556 [2024-12-02 13:08:13,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:08:13,997 INFO L435 NwaCegarLoop]: 893 mSDtfsCounter, 91 mSDsluCounter, 4384 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5277 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:13,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5277 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:08:14,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-12-02 13:08:14,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 554. [2024-12-02 13:08:14,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 438 states have (on average 1.6917808219178083) internal successors, (741), 461 states have internal predecessors, (741), 92 states have call successors, (92), 22 states have call predecessors, (92), 23 states have return successors, (89), 84 states have call predecessors, (89), 87 states have call successors, (89) [2024-12-02 13:08:14,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 922 transitions. [2024-12-02 13:08:14,038 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 922 transitions. Word has length 62 [2024-12-02 13:08:14,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:14,039 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 922 transitions. [2024-12-02 13:08:14,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-12-02 13:08:14,039 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 922 transitions. [2024-12-02 13:08:14,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 13:08:14,042 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:14,042 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:14,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 13:08:14,042 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:14,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:14,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1100463061, now seen corresponding path program 1 times [2024-12-02 13:08:14,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:14,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586100639] [2024-12-02 13:08:14,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:14,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:14,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:14,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:14,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:14,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586100639] [2024-12-02 13:08:14,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586100639] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:14,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:14,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:08:14,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864930643] [2024-12-02 13:08:14,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:14,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:08:14,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:14,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:08:14,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:08:14,191 INFO L87 Difference]: Start difference. First operand 554 states and 922 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:14,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:14,269 INFO L93 Difference]: Finished difference Result 1082 states and 1814 transitions. [2024-12-02 13:08:14,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:08:14,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 62 [2024-12-02 13:08:14,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:14,277 INFO L225 Difference]: With dead ends: 1082 [2024-12-02 13:08:14,277 INFO L226 Difference]: Without dead ends: 535 [2024-12-02 13:08:14,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:08:14,281 INFO L435 NwaCegarLoop]: 897 mSDtfsCounter, 0 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2686 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:14,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2686 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:08:14,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-12-02 13:08:14,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2024-12-02 13:08:14,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 422 states have (on average 1.6872037914691944) internal successors, (712), 443 states have internal predecessors, (712), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 13:08:14,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 889 transitions. [2024-12-02 13:08:14,333 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 889 transitions. Word has length 62 [2024-12-02 13:08:14,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:14,333 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 889 transitions. [2024-12-02 13:08:14,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:14,333 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 889 transitions. [2024-12-02 13:08:14,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-12-02 13:08:14,335 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:14,335 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:14,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:08:14,335 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:14,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:14,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1940863992, now seen corresponding path program 1 times [2024-12-02 13:08:14,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:14,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505585757] [2024-12-02 13:08:14,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:14,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:14,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:14,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:14,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505585757] [2024-12-02 13:08:14,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505585757] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:14,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:14,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:08:14,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212245164] [2024-12-02 13:08:14,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:14,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:08:14,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:14,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:08:14,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:08:14,501 INFO L87 Difference]: Start difference. First operand 535 states and 889 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:14,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:14,715 INFO L93 Difference]: Finished difference Result 1027 states and 1712 transitions. [2024-12-02 13:08:14,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:08:14,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 63 [2024-12-02 13:08:14,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:14,721 INFO L225 Difference]: With dead ends: 1027 [2024-12-02 13:08:14,721 INFO L226 Difference]: Without dead ends: 544 [2024-12-02 13:08:14,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:08:14,724 INFO L435 NwaCegarLoop]: 846 mSDtfsCounter, 55 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4201 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:14,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4201 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:08:14,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-12-02 13:08:14,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 535. [2024-12-02 13:08:14,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 422 states have (on average 1.6777251184834123) internal successors, (708), 443 states have internal predecessors, (708), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 13:08:14,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 885 transitions. [2024-12-02 13:08:14,750 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 885 transitions. Word has length 63 [2024-12-02 13:08:14,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:14,751 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 885 transitions. [2024-12-02 13:08:14,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:14,751 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 885 transitions. [2024-12-02 13:08:14,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 13:08:14,752 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:14,752 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:14,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:08:14,753 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:14,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:14,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1969347815, now seen corresponding path program 1 times [2024-12-02 13:08:14,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:14,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107588475] [2024-12-02 13:08:14,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:14,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:14,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:14,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:14,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107588475] [2024-12-02 13:08:14,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107588475] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:14,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:14,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:08:14,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429035382] [2024-12-02 13:08:14,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:14,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:08:14,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:14,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:08:14,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:08:14,910 INFO L87 Difference]: Start difference. First operand 535 states and 885 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:15,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:15,113 INFO L93 Difference]: Finished difference Result 1027 states and 1708 transitions. [2024-12-02 13:08:15,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:08:15,114 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2024-12-02 13:08:15,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:15,119 INFO L225 Difference]: With dead ends: 1027 [2024-12-02 13:08:15,119 INFO L226 Difference]: Without dead ends: 544 [2024-12-02 13:08:15,122 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:08:15,122 INFO L435 NwaCegarLoop]: 846 mSDtfsCounter, 54 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4201 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:15,123 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4201 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:08:15,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-12-02 13:08:15,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 535. [2024-12-02 13:08:15,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 422 states have (on average 1.6682464454976302) internal successors, (704), 443 states have internal predecessors, (704), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 13:08:15,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 881 transitions. [2024-12-02 13:08:15,147 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 881 transitions. Word has length 64 [2024-12-02 13:08:15,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:15,148 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 881 transitions. [2024-12-02 13:08:15,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:15,148 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 881 transitions. [2024-12-02 13:08:15,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 13:08:15,149 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:15,149 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:15,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 13:08:15,150 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:15,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:15,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1868535565, now seen corresponding path program 1 times [2024-12-02 13:08:15,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:15,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103505234] [2024-12-02 13:08:15,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:15,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:15,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:15,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:15,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103505234] [2024-12-02 13:08:15,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103505234] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:15,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:15,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:08:15,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376779983] [2024-12-02 13:08:15,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:15,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:08:15,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:15,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:08:15,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:08:15,294 INFO L87 Difference]: Start difference. First operand 535 states and 881 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:15,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:15,477 INFO L93 Difference]: Finished difference Result 1027 states and 1704 transitions. [2024-12-02 13:08:15,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:08:15,478 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65 [2024-12-02 13:08:15,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:15,483 INFO L225 Difference]: With dead ends: 1027 [2024-12-02 13:08:15,483 INFO L226 Difference]: Without dead ends: 544 [2024-12-02 13:08:15,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:08:15,487 INFO L435 NwaCegarLoop]: 845 mSDtfsCounter, 53 mSDsluCounter, 3338 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4183 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:15,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4183 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:08:15,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-12-02 13:08:15,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 535. [2024-12-02 13:08:15,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 422 states have (on average 1.6587677725118484) internal successors, (700), 443 states have internal predecessors, (700), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 13:08:15,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 877 transitions. [2024-12-02 13:08:15,512 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 877 transitions. Word has length 65 [2024-12-02 13:08:15,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:15,512 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 877 transitions. [2024-12-02 13:08:15,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:15,512 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 877 transitions. [2024-12-02 13:08:15,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 13:08:15,514 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:15,514 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:15,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 13:08:15,514 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:15,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:15,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1184088973, now seen corresponding path program 1 times [2024-12-02 13:08:15,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:15,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259520398] [2024-12-02 13:08:15,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:15,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:15,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:15,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:15,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259520398] [2024-12-02 13:08:15,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259520398] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:15,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:15,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:08:15,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929464764] [2024-12-02 13:08:15,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:15,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:08:15,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:15,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:08:15,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:08:15,704 INFO L87 Difference]: Start difference. First operand 535 states and 877 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-12-02 13:08:15,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:15,786 INFO L93 Difference]: Finished difference Result 1018 states and 1686 transitions. [2024-12-02 13:08:15,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 13:08:15,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 65 [2024-12-02 13:08:15,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:15,792 INFO L225 Difference]: With dead ends: 1018 [2024-12-02 13:08:15,792 INFO L226 Difference]: Without dead ends: 514 [2024-12-02 13:08:15,795 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:08:15,796 INFO L435 NwaCegarLoop]: 866 mSDtfsCounter, 84 mSDsluCounter, 4257 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5123 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:15,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5123 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:08:15,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-12-02 13:08:15,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2024-12-02 13:08:15,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 401 states have (on average 1.660847880299252) internal successors, (666), 422 states have internal predecessors, (666), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 13:08:15,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 843 transitions. [2024-12-02 13:08:15,820 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 843 transitions. Word has length 65 [2024-12-02 13:08:15,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:15,821 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 843 transitions. [2024-12-02 13:08:15,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-12-02 13:08:15,821 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 843 transitions. [2024-12-02 13:08:15,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-12-02 13:08:15,822 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:15,822 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:15,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 13:08:15,823 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:15,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:15,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1009750654, now seen corresponding path program 1 times [2024-12-02 13:08:15,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:15,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174252228] [2024-12-02 13:08:15,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:15,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:15,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:15,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:15,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174252228] [2024-12-02 13:08:15,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174252228] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:15,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:15,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:08:15,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126681008] [2024-12-02 13:08:15,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:15,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:08:15,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:15,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:08:15,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:08:15,989 INFO L87 Difference]: Start difference. First operand 514 states and 843 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:16,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:16,076 INFO L93 Difference]: Finished difference Result 997 states and 1652 transitions. [2024-12-02 13:08:16,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:08:16,077 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2024-12-02 13:08:16,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:16,081 INFO L225 Difference]: With dead ends: 997 [2024-12-02 13:08:16,081 INFO L226 Difference]: Without dead ends: 514 [2024-12-02 13:08:16,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:08:16,084 INFO L435 NwaCegarLoop]: 826 mSDtfsCounter, 17 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4121 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:16,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4121 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:08:16,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-12-02 13:08:16,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2024-12-02 13:08:16,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 401 states have (on average 1.658354114713217) internal successors, (665), 422 states have internal predecessors, (665), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 13:08:16,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 842 transitions. [2024-12-02 13:08:16,107 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 842 transitions. Word has length 66 [2024-12-02 13:08:16,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:16,107 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 842 transitions. [2024-12-02 13:08:16,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:16,107 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 842 transitions. [2024-12-02 13:08:16,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 13:08:16,109 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:16,109 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:16,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 13:08:16,109 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:16,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:16,109 INFO L85 PathProgramCache]: Analyzing trace with hash -583136786, now seen corresponding path program 1 times [2024-12-02 13:08:16,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:16,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091210702] [2024-12-02 13:08:16,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:16,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:16,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:16,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:16,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091210702] [2024-12-02 13:08:16,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091210702] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:16,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:16,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:08:16,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070577659] [2024-12-02 13:08:16,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:16,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:08:16,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:16,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:08:16,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:08:16,261 INFO L87 Difference]: Start difference. First operand 514 states and 842 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:16,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:16,344 INFO L93 Difference]: Finished difference Result 997 states and 1651 transitions. [2024-12-02 13:08:16,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:08:16,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 67 [2024-12-02 13:08:16,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:16,350 INFO L225 Difference]: With dead ends: 997 [2024-12-02 13:08:16,350 INFO L226 Difference]: Without dead ends: 514 [2024-12-02 13:08:16,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:08:16,353 INFO L435 NwaCegarLoop]: 826 mSDtfsCounter, 16 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4121 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:16,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4121 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:08:16,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-12-02 13:08:16,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2024-12-02 13:08:16,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 401 states have (on average 1.655860349127182) internal successors, (664), 422 states have internal predecessors, (664), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 13:08:16,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 841 transitions. [2024-12-02 13:08:16,376 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 841 transitions. Word has length 67 [2024-12-02 13:08:16,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:16,377 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 841 transitions. [2024-12-02 13:08:16,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:16,377 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 841 transitions. [2024-12-02 13:08:16,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 13:08:16,378 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:16,378 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:16,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 13:08:16,379 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:16,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:16,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1698282661, now seen corresponding path program 1 times [2024-12-02 13:08:16,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:16,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396954142] [2024-12-02 13:08:16,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:16,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:16,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:16,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:16,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396954142] [2024-12-02 13:08:16,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396954142] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:16,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:16,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:08:16,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333359936] [2024-12-02 13:08:16,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:16,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:08:16,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:16,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:08:16,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:08:16,477 INFO L87 Difference]: Start difference. First operand 514 states and 841 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:16,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:16,519 INFO L93 Difference]: Finished difference Result 997 states and 1650 transitions. [2024-12-02 13:08:16,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:08:16,520 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 68 [2024-12-02 13:08:16,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:16,525 INFO L225 Difference]: With dead ends: 997 [2024-12-02 13:08:16,525 INFO L226 Difference]: Without dead ends: 514 [2024-12-02 13:08:16,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:08:16,528 INFO L435 NwaCegarLoop]: 834 mSDtfsCounter, 9 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2496 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:16,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2496 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:08:16,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-12-02 13:08:16,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2024-12-02 13:08:16,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 401 states have (on average 1.653366583541147) internal successors, (663), 422 states have internal predecessors, (663), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 13:08:16,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 840 transitions. [2024-12-02 13:08:16,550 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 840 transitions. Word has length 68 [2024-12-02 13:08:16,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:16,551 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 840 transitions. [2024-12-02 13:08:16,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:16,551 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 840 transitions. [2024-12-02 13:08:16,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 13:08:16,552 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:16,552 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:16,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 13:08:16,552 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:16,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:16,553 INFO L85 PathProgramCache]: Analyzing trace with hash -668923363, now seen corresponding path program 1 times [2024-12-02 13:08:16,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:16,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810844173] [2024-12-02 13:08:16,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:16,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:16,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:16,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:16,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810844173] [2024-12-02 13:08:16,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810844173] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:16,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:16,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:08:16,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330745334] [2024-12-02 13:08:16,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:16,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:08:16,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:16,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:08:16,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:08:16,670 INFO L87 Difference]: Start difference. First operand 514 states and 840 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:16,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:16,716 INFO L93 Difference]: Finished difference Result 991 states and 1638 transitions. [2024-12-02 13:08:16,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:08:16,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 68 [2024-12-02 13:08:16,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:16,722 INFO L225 Difference]: With dead ends: 991 [2024-12-02 13:08:16,722 INFO L226 Difference]: Without dead ends: 514 [2024-12-02 13:08:16,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:08:16,725 INFO L435 NwaCegarLoop]: 828 mSDtfsCounter, 4 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2475 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:16,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2475 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:08:16,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-12-02 13:08:16,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2024-12-02 13:08:16,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 401 states have (on average 1.6508728179551122) internal successors, (662), 422 states have internal predecessors, (662), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 13:08:16,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 839 transitions. [2024-12-02 13:08:16,747 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 839 transitions. Word has length 68 [2024-12-02 13:08:16,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:16,747 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 839 transitions. [2024-12-02 13:08:16,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:08:16,748 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 839 transitions. [2024-12-02 13:08:16,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 13:08:16,749 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:16,749 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:16,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 13:08:16,749 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:16,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:16,750 INFO L85 PathProgramCache]: Analyzing trace with hash 121354265, now seen corresponding path program 1 times [2024-12-02 13:08:16,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:16,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304427861] [2024-12-02 13:08:16,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:16,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:16,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:16,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:16,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:16,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304427861] [2024-12-02 13:08:16,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304427861] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:16,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:16,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:08:16,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142467078] [2024-12-02 13:08:16,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:16,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:08:16,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:16,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:08:16,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:08:16,990 INFO L87 Difference]: Start difference. First operand 514 states and 839 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 5 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-12-02 13:08:19,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:19,410 INFO L93 Difference]: Finished difference Result 1586 states and 2654 transitions. [2024-12-02 13:08:19,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:08:19,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 5 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 69 [2024-12-02 13:08:19,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:19,423 INFO L225 Difference]: With dead ends: 1586 [2024-12-02 13:08:19,423 INFO L226 Difference]: Without dead ends: 1117 [2024-12-02 13:08:19,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:08:19,426 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 1898 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1958 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 2225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:19,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1958 Valid, 1410 Invalid, 2225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 1817 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 13:08:19,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2024-12-02 13:08:19,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 995. [2024-12-02 13:08:19,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 783 states have (on average 1.6743295019157087) internal successors, (1311), 813 states have internal predecessors, (1311), 174 states have call successors, (174), 36 states have call predecessors, (174), 37 states have return successors, (176), 158 states have call predecessors, (176), 169 states have call successors, (176) [2024-12-02 13:08:19,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1661 transitions. [2024-12-02 13:08:19,522 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1661 transitions. Word has length 69 [2024-12-02 13:08:19,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:19,522 INFO L471 AbstractCegarLoop]: Abstraction has 995 states and 1661 transitions. [2024-12-02 13:08:19,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 5 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-12-02 13:08:19,523 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1661 transitions. [2024-12-02 13:08:19,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 13:08:19,527 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:19,527 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:19,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 13:08:19,528 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:19,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:19,528 INFO L85 PathProgramCache]: Analyzing trace with hash -521853870, now seen corresponding path program 1 times [2024-12-02 13:08:19,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:19,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80942405] [2024-12-02 13:08:19,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:19,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:20,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:20,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:20,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80942405] [2024-12-02 13:08:20,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80942405] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:20,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:20,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 13:08:20,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860397109] [2024-12-02 13:08:20,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:20,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 13:08:20,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:20,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 13:08:20,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:08:20,011 INFO L87 Difference]: Start difference. First operand 995 states and 1661 transitions. Second operand has 14 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 7 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-12-02 13:08:25,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:25,254 INFO L93 Difference]: Finished difference Result 3592 states and 6032 transitions. [2024-12-02 13:08:25,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 13:08:25,255 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 7 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 97 [2024-12-02 13:08:25,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:25,267 INFO L225 Difference]: With dead ends: 3592 [2024-12-02 13:08:25,267 INFO L226 Difference]: Without dead ends: 2642 [2024-12-02 13:08:25,271 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=157, Invalid=899, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 13:08:25,271 INFO L435 NwaCegarLoop]: 757 mSDtfsCounter, 2686 mSDsluCounter, 6469 mSDsCounter, 0 mSdLazyCounter, 11610 mSolverCounterSat, 826 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2760 SdHoareTripleChecker+Valid, 7226 SdHoareTripleChecker+Invalid, 12436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 826 IncrementalHoareTripleChecker+Valid, 11610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:25,272 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2760 Valid, 7226 Invalid, 12436 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [826 Valid, 11610 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-12-02 13:08:25,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2024-12-02 13:08:25,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 2548. [2024-12-02 13:08:25,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 1940 states have (on average 1.6448453608247422) internal successors, (3191), 2016 states have internal predecessors, (3191), 513 states have call successors, (513), 77 states have call predecessors, (513), 94 states have return successors, (546), 487 states have call predecessors, (546), 508 states have call successors, (546) [2024-12-02 13:08:25,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 4250 transitions. [2024-12-02 13:08:25,381 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 4250 transitions. Word has length 97 [2024-12-02 13:08:25,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:25,381 INFO L471 AbstractCegarLoop]: Abstraction has 2548 states and 4250 transitions. [2024-12-02 13:08:25,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 7 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-12-02 13:08:25,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 4250 transitions. [2024-12-02 13:08:25,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-12-02 13:08:25,383 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:25,383 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:25,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 13:08:25,384 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:25,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:25,384 INFO L85 PathProgramCache]: Analyzing trace with hash 74390232, now seen corresponding path program 1 times [2024-12-02 13:08:25,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:25,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311153049] [2024-12-02 13:08:25,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:25,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:25,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:25,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:25,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311153049] [2024-12-02 13:08:25,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311153049] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:25,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:25,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 13:08:25,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222065151] [2024-12-02 13:08:25,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:25,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:08:25,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:25,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:08:25,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:08:25,618 INFO L87 Difference]: Start difference. First operand 2548 states and 4250 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 13:08:27,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:27,024 INFO L93 Difference]: Finished difference Result 5079 states and 8621 transitions. [2024-12-02 13:08:27,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:08:27,024 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 98 [2024-12-02 13:08:27,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:27,041 INFO L225 Difference]: With dead ends: 5079 [2024-12-02 13:08:27,041 INFO L226 Difference]: Without dead ends: 2576 [2024-12-02 13:08:27,051 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:08:27,051 INFO L435 NwaCegarLoop]: 384 mSDtfsCounter, 1286 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 2591 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 2963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 2591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:27,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 1622 Invalid, 2963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 2591 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 13:08:27,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2024-12-02 13:08:27,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 2572. [2024-12-02 13:08:27,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2572 states, 1958 states have (on average 1.6389172625127681) internal successors, (3209), 2034 states have internal predecessors, (3209), 513 states have call successors, (513), 77 states have call predecessors, (513), 100 states have return successors, (612), 493 states have call predecessors, (612), 508 states have call successors, (612) [2024-12-02 13:08:27,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2572 states to 2572 states and 4334 transitions. [2024-12-02 13:08:27,170 INFO L78 Accepts]: Start accepts. Automaton has 2572 states and 4334 transitions. Word has length 98 [2024-12-02 13:08:27,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:27,171 INFO L471 AbstractCegarLoop]: Abstraction has 2572 states and 4334 transitions. [2024-12-02 13:08:27,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 13:08:27,171 INFO L276 IsEmpty]: Start isEmpty. Operand 2572 states and 4334 transitions. [2024-12-02 13:08:27,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 13:08:27,174 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:27,174 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:27,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 13:08:27,174 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:27,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:27,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1880489071, now seen corresponding path program 1 times [2024-12-02 13:08:27,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:27,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194365270] [2024-12-02 13:08:27,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:27,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:27,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:27,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:27,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194365270] [2024-12-02 13:08:27,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194365270] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:27,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:27,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:08:27,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380195932] [2024-12-02 13:08:27,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:27,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:08:27,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:27,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:08:27,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:08:27,366 INFO L87 Difference]: Start difference. First operand 2572 states and 4334 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 13:08:29,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:29,950 INFO L93 Difference]: Finished difference Result 8227 states and 14145 transitions. [2024-12-02 13:08:29,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 13:08:29,951 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 99 [2024-12-02 13:08:29,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:29,987 INFO L225 Difference]: With dead ends: 8227 [2024-12-02 13:08:29,987 INFO L226 Difference]: Without dead ends: 5700 [2024-12-02 13:08:30,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-12-02 13:08:30,004 INFO L435 NwaCegarLoop]: 617 mSDtfsCounter, 2697 mSDsluCounter, 1937 mSDsCounter, 0 mSdLazyCounter, 4284 mSolverCounterSat, 686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2766 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 4970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 686 IncrementalHoareTripleChecker+Valid, 4284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:30,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2766 Valid, 2554 Invalid, 4970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [686 Valid, 4284 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 13:08:30,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2024-12-02 13:08:30,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5469. [2024-12-02 13:08:30,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5469 states, 4158 states have (on average 1.6284271284271283) internal successors, (6771), 4339 states have internal predecessors, (6771), 1088 states have call successors, (1088), 190 states have call predecessors, (1088), 222 states have return successors, (1237), 1016 states have call predecessors, (1237), 1083 states have call successors, (1237) [2024-12-02 13:08:30,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5469 states to 5469 states and 9096 transitions. [2024-12-02 13:08:30,431 INFO L78 Accepts]: Start accepts. Automaton has 5469 states and 9096 transitions. Word has length 99 [2024-12-02 13:08:30,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:30,432 INFO L471 AbstractCegarLoop]: Abstraction has 5469 states and 9096 transitions. [2024-12-02 13:08:30,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 13:08:30,432 INFO L276 IsEmpty]: Start isEmpty. Operand 5469 states and 9096 transitions. [2024-12-02 13:08:30,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 13:08:30,434 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:30,435 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:30,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 13:08:30,435 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:30,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:30,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1456719465, now seen corresponding path program 1 times [2024-12-02 13:08:30,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:30,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590094787] [2024-12-02 13:08:30,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:30,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:30,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:30,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:30,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590094787] [2024-12-02 13:08:30,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590094787] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:30,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:30,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:08:30,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268101448] [2024-12-02 13:08:30,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:30,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:08:30,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:30,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:08:30,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:08:30,665 INFO L87 Difference]: Start difference. First operand 5469 states and 9096 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 13:08:33,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:33,372 INFO L93 Difference]: Finished difference Result 16548 states and 27991 transitions. [2024-12-02 13:08:33,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 13:08:33,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 101 [2024-12-02 13:08:33,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:33,435 INFO L225 Difference]: With dead ends: 16548 [2024-12-02 13:08:33,435 INFO L226 Difference]: Without dead ends: 11833 [2024-12-02 13:08:33,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-12-02 13:08:33,457 INFO L435 NwaCegarLoop]: 358 mSDtfsCounter, 2358 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 3567 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2438 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 4069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 3567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:33,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2438 Valid, 1753 Invalid, 4069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 3567 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 13:08:33,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11833 states. [2024-12-02 13:08:34,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11833 to 11199. [2024-12-02 13:08:34,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11199 states, 8503 states have (on average 1.629424908855698) internal successors, (13855), 8903 states have internal predecessors, (13855), 2182 states have call successors, (2182), 372 states have call predecessors, (2182), 513 states have return successors, (2752), 2066 states have call predecessors, (2752), 2177 states have call successors, (2752) [2024-12-02 13:08:34,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11199 states to 11199 states and 18789 transitions. [2024-12-02 13:08:34,284 INFO L78 Accepts]: Start accepts. Automaton has 11199 states and 18789 transitions. Word has length 101 [2024-12-02 13:08:34,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:34,284 INFO L471 AbstractCegarLoop]: Abstraction has 11199 states and 18789 transitions. [2024-12-02 13:08:34,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 13:08:34,285 INFO L276 IsEmpty]: Start isEmpty. Operand 11199 states and 18789 transitions. [2024-12-02 13:08:34,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 13:08:34,288 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:34,288 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:34,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 13:08:34,288 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:34,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:34,289 INFO L85 PathProgramCache]: Analyzing trace with hash 2053168730, now seen corresponding path program 1 times [2024-12-02 13:08:34,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:34,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286645264] [2024-12-02 13:08:34,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:34,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:34,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:34,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:34,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286645264] [2024-12-02 13:08:34,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286645264] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:34,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:34,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:08:34,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229272958] [2024-12-02 13:08:34,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:34,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:08:34,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:34,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:08:34,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:08:34,444 INFO L87 Difference]: Start difference. First operand 11199 states and 18789 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:08:35,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:35,197 INFO L93 Difference]: Finished difference Result 21692 states and 36555 transitions. [2024-12-02 13:08:35,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:08:35,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2024-12-02 13:08:35,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:35,282 INFO L225 Difference]: With dead ends: 21692 [2024-12-02 13:08:35,282 INFO L226 Difference]: Without dead ends: 11357 [2024-12-02 13:08:35,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:08:35,329 INFO L435 NwaCegarLoop]: 837 mSDtfsCounter, 0 mSDsluCounter, 2481 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3318 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:35,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3318 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:08:35,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11357 states. [2024-12-02 13:08:36,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11357 to 11321. [2024-12-02 13:08:36,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11321 states, 8599 states have (on average 1.6217001976974066) internal successors, (13945), 8993 states have internal predecessors, (13945), 2176 states have call successors, (2176), 372 states have call predecessors, (2176), 545 states have return successors, (2840), 2098 states have call predecessors, (2840), 2171 states have call successors, (2840) [2024-12-02 13:08:36,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11321 states to 11321 states and 18961 transitions. [2024-12-02 13:08:36,279 INFO L78 Accepts]: Start accepts. Automaton has 11321 states and 18961 transitions. Word has length 106 [2024-12-02 13:08:36,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:36,279 INFO L471 AbstractCegarLoop]: Abstraction has 11321 states and 18961 transitions. [2024-12-02 13:08:36,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:08:36,281 INFO L276 IsEmpty]: Start isEmpty. Operand 11321 states and 18961 transitions. [2024-12-02 13:08:36,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 13:08:36,285 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:36,285 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:36,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 13:08:36,285 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:36,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:36,286 INFO L85 PathProgramCache]: Analyzing trace with hash -885458413, now seen corresponding path program 1 times [2024-12-02 13:08:36,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:36,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938769224] [2024-12-02 13:08:36,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:36,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:36,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:36,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:36,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938769224] [2024-12-02 13:08:36,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938769224] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:36,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:36,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:08:36,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282218514] [2024-12-02 13:08:36,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:36,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:08:36,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:36,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:08:36,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:08:36,632 INFO L87 Difference]: Start difference. First operand 11321 states and 18961 transitions. Second operand has 9 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-12-02 13:08:37,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:37,713 INFO L93 Difference]: Finished difference Result 23756 states and 40665 transitions. [2024-12-02 13:08:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:08:37,714 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 113 [2024-12-02 13:08:37,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:37,766 INFO L225 Difference]: With dead ends: 23756 [2024-12-02 13:08:37,766 INFO L226 Difference]: Without dead ends: 11593 [2024-12-02 13:08:37,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:08:37,801 INFO L435 NwaCegarLoop]: 882 mSDtfsCounter, 235 mSDsluCounter, 5879 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 6761 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:37,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 6761 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:08:37,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11593 states. [2024-12-02 13:08:38,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11593 to 11321. [2024-12-02 13:08:38,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11321 states, 8599 states have (on average 1.591464123735318) internal successors, (13685), 8993 states have internal predecessors, (13685), 2176 states have call successors, (2176), 372 states have call predecessors, (2176), 545 states have return successors, (2840), 2098 states have call predecessors, (2840), 2171 states have call successors, (2840) [2024-12-02 13:08:38,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11321 states to 11321 states and 18701 transitions. [2024-12-02 13:08:38,411 INFO L78 Accepts]: Start accepts. Automaton has 11321 states and 18701 transitions. Word has length 113 [2024-12-02 13:08:38,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:38,411 INFO L471 AbstractCegarLoop]: Abstraction has 11321 states and 18701 transitions. [2024-12-02 13:08:38,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-12-02 13:08:38,411 INFO L276 IsEmpty]: Start isEmpty. Operand 11321 states and 18701 transitions. [2024-12-02 13:08:38,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 13:08:38,413 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:38,414 INFO L218 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] [2024-12-02 13:08:38,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 13:08:38,414 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:38,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:38,414 INFO L85 PathProgramCache]: Analyzing trace with hash 169242431, now seen corresponding path program 1 times [2024-12-02 13:08:38,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:38,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799398330] [2024-12-02 13:08:38,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:38,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:38,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:08:38,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:38,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799398330] [2024-12-02 13:08:38,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799398330] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:38,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:38,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:08:38,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994029502] [2024-12-02 13:08:38,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:38,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:08:38,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:38,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:08:38,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:08:38,587 INFO L87 Difference]: Start difference. First operand 11321 states and 18701 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 13:08:41,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:41,211 INFO L93 Difference]: Finished difference Result 23247 states and 38602 transitions. [2024-12-02 13:08:41,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 13:08:41,212 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 118 [2024-12-02 13:08:41,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:41,260 INFO L225 Difference]: With dead ends: 23247 [2024-12-02 13:08:41,260 INFO L226 Difference]: Without dead ends: 12801 [2024-12-02 13:08:41,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:08:41,290 INFO L435 NwaCegarLoop]: 380 mSDtfsCounter, 2084 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 3071 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 3555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 3071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:41,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2160 Valid, 1691 Invalid, 3555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 3071 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 13:08:41,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12801 states. [2024-12-02 13:08:42,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12801 to 11887. [2024-12-02 13:08:42,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11887 states, 9021 states have (on average 1.578206407271921) internal successors, (14237), 9451 states have internal predecessors, (14237), 2231 states have call successors, (2231), 425 states have call predecessors, (2231), 634 states have return successors, (3043), 2154 states have call predecessors, (3043), 2226 states have call successors, (3043) [2024-12-02 13:08:42,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11887 states to 11887 states and 19511 transitions. [2024-12-02 13:08:42,102 INFO L78 Accepts]: Start accepts. Automaton has 11887 states and 19511 transitions. Word has length 118 [2024-12-02 13:08:42,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:42,103 INFO L471 AbstractCegarLoop]: Abstraction has 11887 states and 19511 transitions. [2024-12-02 13:08:42,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 13:08:42,103 INFO L276 IsEmpty]: Start isEmpty. Operand 11887 states and 19511 transitions. [2024-12-02 13:08:42,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 13:08:42,106 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:42,106 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1] [2024-12-02 13:08:42,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 13:08:42,106 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:42,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:42,107 INFO L85 PathProgramCache]: Analyzing trace with hash 548183034, now seen corresponding path program 1 times [2024-12-02 13:08:42,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:42,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576908079] [2024-12-02 13:08:42,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:42,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:42,494 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 13:08:42,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:42,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576908079] [2024-12-02 13:08:42,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576908079] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:42,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:42,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 13:08:42,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670588096] [2024-12-02 13:08:42,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:42,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 13:08:42,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:42,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 13:08:42,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2024-12-02 13:08:42,496 INFO L87 Difference]: Start difference. First operand 11887 states and 19511 transitions. Second operand has 13 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 7 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-12-02 13:08:47,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:47,437 INFO L93 Difference]: Finished difference Result 27489 states and 45002 transitions. [2024-12-02 13:08:47,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 13:08:47,438 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 7 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 125 [2024-12-02 13:08:47,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:47,492 INFO L225 Difference]: With dead ends: 27489 [2024-12-02 13:08:47,492 INFO L226 Difference]: Without dead ends: 16332 [2024-12-02 13:08:47,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2024-12-02 13:08:47,521 INFO L435 NwaCegarLoop]: 414 mSDtfsCounter, 2235 mSDsluCounter, 3818 mSDsCounter, 0 mSdLazyCounter, 8101 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2320 SdHoareTripleChecker+Valid, 4232 SdHoareTripleChecker+Invalid, 8585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 8101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:47,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2320 Valid, 4232 Invalid, 8585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 8101 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-12-02 13:08:47,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16332 states. [2024-12-02 13:08:48,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16332 to 14803. [2024-12-02 13:08:48,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14803 states, 11325 states have (on average 1.5575275938189845) internal successors, (17639), 11869 states have internal predecessors, (17639), 2597 states have call successors, (2597), 599 states have call predecessors, (2597), 880 states have return successors, (3571), 2478 states have call predecessors, (3571), 2592 states have call successors, (3571) [2024-12-02 13:08:48,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14803 states to 14803 states and 23807 transitions. [2024-12-02 13:08:48,185 INFO L78 Accepts]: Start accepts. Automaton has 14803 states and 23807 transitions. Word has length 125 [2024-12-02 13:08:48,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:48,185 INFO L471 AbstractCegarLoop]: Abstraction has 14803 states and 23807 transitions. [2024-12-02 13:08:48,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 7 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-12-02 13:08:48,185 INFO L276 IsEmpty]: Start isEmpty. Operand 14803 states and 23807 transitions. [2024-12-02 13:08:48,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 13:08:48,187 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:48,187 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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] [2024-12-02 13:08:48,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 13:08:48,188 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:48,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:48,188 INFO L85 PathProgramCache]: Analyzing trace with hash 292369734, now seen corresponding path program 1 times [2024-12-02 13:08:48,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:48,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109809458] [2024-12-02 13:08:48,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:48,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:48,332 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 13:08:48,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:48,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109809458] [2024-12-02 13:08:48,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109809458] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:48,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:48,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:08:48,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840023141] [2024-12-02 13:08:48,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:48,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:08:48,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:48,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:08:48,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:08:48,333 INFO L87 Difference]: Start difference. First operand 14803 states and 23807 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 13:08:49,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:49,374 INFO L93 Difference]: Finished difference Result 14952 states and 24069 transitions. [2024-12-02 13:08:49,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:08:49,375 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2024-12-02 13:08:49,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:49,436 INFO L225 Difference]: With dead ends: 14952 [2024-12-02 13:08:49,436 INFO L226 Difference]: Without dead ends: 14937 [2024-12-02 13:08:49,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:08:49,445 INFO L435 NwaCegarLoop]: 819 mSDtfsCounter, 900 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 2935 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:49,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 2935 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:08:49,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14937 states. [2024-12-02 13:08:50,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14937 to 14811. [2024-12-02 13:08:50,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14811 states, 11333 states have (on average 1.557134033353922) internal successors, (17647), 11877 states have internal predecessors, (17647), 2597 states have call successors, (2597), 599 states have call predecessors, (2597), 880 states have return successors, (3571), 2478 states have call predecessors, (3571), 2592 states have call successors, (3571) [2024-12-02 13:08:50,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14811 states to 14811 states and 23815 transitions. [2024-12-02 13:08:50,114 INFO L78 Accepts]: Start accepts. Automaton has 14811 states and 23815 transitions. Word has length 123 [2024-12-02 13:08:50,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:50,114 INFO L471 AbstractCegarLoop]: Abstraction has 14811 states and 23815 transitions. [2024-12-02 13:08:50,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 13:08:50,114 INFO L276 IsEmpty]: Start isEmpty. Operand 14811 states and 23815 transitions. [2024-12-02 13:08:50,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 13:08:50,116 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:50,116 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:50,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 13:08:50,116 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:50,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:50,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1950187670, now seen corresponding path program 1 times [2024-12-02 13:08:50,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:50,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849111939] [2024-12-02 13:08:50,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:50,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:50,456 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 13:08:50,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:50,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849111939] [2024-12-02 13:08:50,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849111939] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:50,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:50,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 13:08:50,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854708427] [2024-12-02 13:08:50,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:50,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 13:08:50,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:50,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 13:08:50,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:08:50,458 INFO L87 Difference]: Start difference. First operand 14811 states and 23815 transitions. Second operand has 11 states, 10 states have (on average 9.6) internal successors, (96), 9 states have internal predecessors, (96), 4 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 13:08:51,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:51,334 INFO L93 Difference]: Finished difference Result 15172 states and 24367 transitions. [2024-12-02 13:08:51,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 13:08:51,334 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.6) internal successors, (96), 9 states have internal predecessors, (96), 4 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 131 [2024-12-02 13:08:51,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:51,394 INFO L225 Difference]: With dead ends: 15172 [2024-12-02 13:08:51,394 INFO L226 Difference]: Without dead ends: 15157 [2024-12-02 13:08:51,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-12-02 13:08:51,405 INFO L435 NwaCegarLoop]: 820 mSDtfsCounter, 823 mSDsluCounter, 6483 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 7303 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:51,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 7303 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:08:51,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15157 states. [2024-12-02 13:08:52,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15157 to 15119. [2024-12-02 13:08:52,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15119 states, 11570 states have (on average 1.553932584269663) internal successors, (17979), 12114 states have internal predecessors, (17979), 2642 states have call successors, (2642), 625 states have call predecessors, (2642), 906 states have return successors, (3656), 2522 states have call predecessors, (3656), 2637 states have call successors, (3656) [2024-12-02 13:08:52,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15119 states to 15119 states and 24277 transitions. [2024-12-02 13:08:52,148 INFO L78 Accepts]: Start accepts. Automaton has 15119 states and 24277 transitions. Word has length 131 [2024-12-02 13:08:52,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:52,148 INFO L471 AbstractCegarLoop]: Abstraction has 15119 states and 24277 transitions. [2024-12-02 13:08:52,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.6) internal successors, (96), 9 states have internal predecessors, (96), 4 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 13:08:52,148 INFO L276 IsEmpty]: Start isEmpty. Operand 15119 states and 24277 transitions. [2024-12-02 13:08:52,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 13:08:52,150 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:52,151 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:52,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 13:08:52,151 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:52,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:52,151 INFO L85 PathProgramCache]: Analyzing trace with hash 777835671, now seen corresponding path program 1 times [2024-12-02 13:08:52,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:52,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916916037] [2024-12-02 13:08:52,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:52,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:52,463 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 13:08:52,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:52,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916916037] [2024-12-02 13:08:52,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916916037] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:52,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:52,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 13:08:52,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234536211] [2024-12-02 13:08:52,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:52,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:08:52,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:52,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:08:52,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:08:52,465 INFO L87 Difference]: Start difference. First operand 15119 states and 24277 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 13:08:54,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:54,621 INFO L93 Difference]: Finished difference Result 30303 states and 48930 transitions. [2024-12-02 13:08:54,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:08:54,622 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 140 [2024-12-02 13:08:54,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:54,692 INFO L225 Difference]: With dead ends: 30303 [2024-12-02 13:08:54,693 INFO L226 Difference]: Without dead ends: 15241 [2024-12-02 13:08:54,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:08:54,741 INFO L435 NwaCegarLoop]: 383 mSDtfsCounter, 1234 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 2598 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 1618 SdHoareTripleChecker+Invalid, 2933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 2598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:54,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 1618 Invalid, 2933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 2598 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 13:08:54,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15241 states. [2024-12-02 13:08:55,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15241 to 15119. [2024-12-02 13:08:55,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15119 states, 11570 states have (on average 1.5522904062229905) internal successors, (17960), 12114 states have internal predecessors, (17960), 2642 states have call successors, (2642), 625 states have call predecessors, (2642), 906 states have return successors, (3656), 2522 states have call predecessors, (3656), 2637 states have call successors, (3656) [2024-12-02 13:08:55,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15119 states to 15119 states and 24258 transitions. [2024-12-02 13:08:55,666 INFO L78 Accepts]: Start accepts. Automaton has 15119 states and 24258 transitions. Word has length 140 [2024-12-02 13:08:55,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:55,666 INFO L471 AbstractCegarLoop]: Abstraction has 15119 states and 24258 transitions. [2024-12-02 13:08:55,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 13:08:55,667 INFO L276 IsEmpty]: Start isEmpty. Operand 15119 states and 24258 transitions. [2024-12-02 13:08:55,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 13:08:55,669 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:55,669 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:55,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 13:08:55,669 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:08:55,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:55,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1579344438, now seen corresponding path program 1 times [2024-12-02 13:08:55,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:55,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399686345] [2024-12-02 13:08:55,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:55,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:55,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:55,822 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 13:08:55,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:55,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399686345] [2024-12-02 13:08:55,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399686345] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:55,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:55,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:08:55,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706064539] [2024-12-02 13:08:55,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:55,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:08:55,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:55,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:08:55,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:08:55,823 INFO L87 Difference]: Start difference. First operand 15119 states and 24258 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 13:08:59,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:59,080 INFO L93 Difference]: Finished difference Result 44424 states and 72696 transitions. [2024-12-02 13:08:59,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:08:59,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 143 [2024-12-02 13:08:59,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:59,223 INFO L225 Difference]: With dead ends: 44424 [2024-12-02 13:08:59,223 INFO L226 Difference]: Without dead ends: 29326 [2024-12-02 13:08:59,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:08:59,282 INFO L435 NwaCegarLoop]: 487 mSDtfsCounter, 2166 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 2226 mSolverCounterSat, 487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2261 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 2713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 2226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:59,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2261 Valid, 1425 Invalid, 2713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [487 Valid, 2226 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 13:08:59,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29326 states. [2024-12-02 13:09:00,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29326 to 27745. [2024-12-02 13:09:00,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27745 states, 20746 states have (on average 1.5457919598958836) internal successors, (32069), 21891 states have internal predecessors, (32069), 5416 states have call successors, (5416), 1049 states have call predecessors, (5416), 1582 states have return successors, (7774), 5298 states have call predecessors, (7774), 5411 states have call successors, (7774) [2024-12-02 13:09:00,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27745 states to 27745 states and 45259 transitions. [2024-12-02 13:09:00,987 INFO L78 Accepts]: Start accepts. Automaton has 27745 states and 45259 transitions. Word has length 143 [2024-12-02 13:09:00,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:00,988 INFO L471 AbstractCegarLoop]: Abstraction has 27745 states and 45259 transitions. [2024-12-02 13:09:00,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 13:09:00,988 INFO L276 IsEmpty]: Start isEmpty. Operand 27745 states and 45259 transitions. [2024-12-02 13:09:00,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 13:09:00,991 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:00,991 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:09:00,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 13:09:00,991 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:09:00,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:00,991 INFO L85 PathProgramCache]: Analyzing trace with hash 2068891841, now seen corresponding path program 1 times [2024-12-02 13:09:00,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:00,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186792685] [2024-12-02 13:09:00,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:00,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:01,134 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 13:09:01,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:01,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186792685] [2024-12-02 13:09:01,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186792685] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:01,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:01,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:09:01,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531986014] [2024-12-02 13:09:01,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:01,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:09:01,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:01,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:09:01,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:09:01,136 INFO L87 Difference]: Start difference. First operand 27745 states and 45259 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 13:09:06,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:06,537 INFO L93 Difference]: Finished difference Result 82114 states and 138377 transitions. [2024-12-02 13:09:06,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:09:06,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 149 [2024-12-02 13:09:06,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:06,918 INFO L225 Difference]: With dead ends: 82114 [2024-12-02 13:09:06,918 INFO L226 Difference]: Without dead ends: 54414 [2024-12-02 13:09:07,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:09:07,049 INFO L435 NwaCegarLoop]: 410 mSDtfsCounter, 1845 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1917 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:09:07,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1917 Valid, 945 Invalid, 1590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 13:09:07,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54414 states. [2024-12-02 13:09:10,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54414 to 52513. [2024-12-02 13:09:10,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52513 states, 38398 states have (on average 1.5408354601802177) internal successors, (59165), 40763 states have internal predecessors, (59165), 11236 states have call successors, (11236), 1808 states have call predecessors, (11236), 2878 states have return successors, (18240), 11189 states have call predecessors, (18240), 11231 states have call successors, (18240) [2024-12-02 13:09:11,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52513 states to 52513 states and 88641 transitions. [2024-12-02 13:09:11,249 INFO L78 Accepts]: Start accepts. Automaton has 52513 states and 88641 transitions. Word has length 149 [2024-12-02 13:09:11,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:11,249 INFO L471 AbstractCegarLoop]: Abstraction has 52513 states and 88641 transitions. [2024-12-02 13:09:11,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 13:09:11,249 INFO L276 IsEmpty]: Start isEmpty. Operand 52513 states and 88641 transitions. [2024-12-02 13:09:11,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 13:09:11,253 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:11,253 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:09:11,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 13:09:11,254 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:09:11,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:11,254 INFO L85 PathProgramCache]: Analyzing trace with hash -288991505, now seen corresponding path program 1 times [2024-12-02 13:09:11,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:11,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180652236] [2024-12-02 13:09:11,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:11,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:11,427 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 13:09:11,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:11,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180652236] [2024-12-02 13:09:11,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180652236] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:11,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:11,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:09:11,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086065269] [2024-12-02 13:09:11,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:11,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:09:11,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:11,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:09:11,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:09:11,429 INFO L87 Difference]: Start difference. First operand 52513 states and 88641 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 13:09:20,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:20,677 INFO L93 Difference]: Finished difference Result 165784 states and 294784 transitions. [2024-12-02 13:09:20,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:09:20,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 150 [2024-12-02 13:09:20,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:21,582 INFO L225 Difference]: With dead ends: 165784 [2024-12-02 13:09:21,582 INFO L226 Difference]: Without dead ends: 113316 [2024-12-02 13:09:21,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:09:21,803 INFO L435 NwaCegarLoop]: 387 mSDtfsCounter, 1848 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1919 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 1579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:09:21,803 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1919 Valid, 914 Invalid, 1579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 13:09:21,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113316 states. [2024-12-02 13:09:29,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113316 to 109553. [2024-12-02 13:09:29,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109553 states, 78090 states have (on average 1.5364195159431426) internal successors, (119979), 83416 states have internal predecessors, (119979), 25779 states have call successors, (25779), 3326 states have call predecessors, (25779), 5683 states have return successors, (49281), 26034 states have call predecessors, (49281), 25774 states have call successors, (49281) [2024-12-02 13:09:30,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109553 states to 109553 states and 195039 transitions. [2024-12-02 13:09:30,410 INFO L78 Accepts]: Start accepts. Automaton has 109553 states and 195039 transitions. Word has length 150 [2024-12-02 13:09:30,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:30,410 INFO L471 AbstractCegarLoop]: Abstraction has 109553 states and 195039 transitions. [2024-12-02 13:09:30,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 13:09:30,410 INFO L276 IsEmpty]: Start isEmpty. Operand 109553 states and 195039 transitions. [2024-12-02 13:09:30,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 13:09:30,417 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:30,417 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:09:30,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 13:09:30,418 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:09:30,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:30,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1560647032, now seen corresponding path program 1 times [2024-12-02 13:09:30,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:30,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586949998] [2024-12-02 13:09:30,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:30,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:30,573 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 13:09:30,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:30,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586949998] [2024-12-02 13:09:30,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586949998] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:30,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:30,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:09:30,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699418219] [2024-12-02 13:09:30,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:30,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:09:30,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:30,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:09:30,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:09:30,575 INFO L87 Difference]: Start difference. First operand 109553 states and 195039 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 13:09:52,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:52,522 INFO L93 Difference]: Finished difference Result 361512 states and 694503 transitions. [2024-12-02 13:09:52,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:09:52,523 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 153 [2024-12-02 13:09:52,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:54,505 INFO L225 Difference]: With dead ends: 361512 [2024-12-02 13:09:54,505 INFO L226 Difference]: Without dead ends: 252004 [2024-12-02 13:09:55,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:09:55,232 INFO L435 NwaCegarLoop]: 389 mSDtfsCounter, 1829 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1897 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 1579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:09:55,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1897 Valid, 913 Invalid, 1579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 13:09:55,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252004 states. [2024-12-02 13:10:14,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252004 to 244641. [2024-12-02 13:10:14,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244641 states, 169845 states have (on average 1.5321145750537255) internal successors, (260222), 182499 states have internal predecessors, (260222), 62916 states have call successors, (62916), 6362 states have call predecessors, (62916), 11879 states have return successors, (144778), 64255 states have call predecessors, (144778), 62911 states have call successors, (144778) [2024-12-02 13:10:16,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244641 states to 244641 states and 467916 transitions. [2024-12-02 13:10:16,447 INFO L78 Accepts]: Start accepts. Automaton has 244641 states and 467916 transitions. Word has length 153 [2024-12-02 13:10:16,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:10:16,447 INFO L471 AbstractCegarLoop]: Abstraction has 244641 states and 467916 transitions. [2024-12-02 13:10:16,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 13:10:16,447 INFO L276 IsEmpty]: Start isEmpty. Operand 244641 states and 467916 transitions. [2024-12-02 13:10:16,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 13:10:16,454 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:10:16,454 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:10:16,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 13:10:16,454 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:10:16,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:10:16,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1135296412, now seen corresponding path program 1 times [2024-12-02 13:10:16,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:10:16,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73395178] [2024-12-02 13:10:16,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:10:16,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:10:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:10:16,594 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 13:10:16,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:10:16,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73395178] [2024-12-02 13:10:16,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73395178] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:10:16,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:10:16,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:10:16,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152030554] [2024-12-02 13:10:16,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:10:16,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:10:16,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:10:16,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:10:16,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:10:16,596 INFO L87 Difference]: Start difference. First operand 244641 states and 467916 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 13:11:09,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:11:09,241 INFO L93 Difference]: Finished difference Result 831100 states and 1771705 transitions. [2024-12-02 13:11:09,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:11:09,242 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 154 [2024-12-02 13:11:09,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:11:15,786 INFO L225 Difference]: With dead ends: 831100 [2024-12-02 13:11:15,786 INFO L226 Difference]: Without dead ends: 586504 [2024-12-02 13:11:18,380 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:11:18,381 INFO L435 NwaCegarLoop]: 388 mSDtfsCounter, 1816 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1883 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:11:18,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1883 Valid, 912 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 13:11:18,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586504 states. [2024-12-02 13:12:13,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586504 to 574001. [2024-12-02 13:12:14,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574001 states, 388588 states have (on average 1.5276977158327072) internal successors, (593645), 419698 states have internal predecessors, (593645), 159489 states have call successors, (159489), 12434 states have call predecessors, (159489), 25923 states have return successors, (447943), 164436 states have call predecessors, (447943), 159484 states have call successors, (447943) [2024-12-02 13:12:21,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574001 states to 574001 states and 1201077 transitions. [2024-12-02 13:12:21,729 INFO L78 Accepts]: Start accepts. Automaton has 574001 states and 1201077 transitions. Word has length 154 [2024-12-02 13:12:21,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:12:21,729 INFO L471 AbstractCegarLoop]: Abstraction has 574001 states and 1201077 transitions. [2024-12-02 13:12:21,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 13:12:21,729 INFO L276 IsEmpty]: Start isEmpty. Operand 574001 states and 1201077 transitions. [2024-12-02 13:12:21,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 13:12:21,741 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:12:21,741 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:12:21,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 13:12:21,742 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:12:21,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:12:21,742 INFO L85 PathProgramCache]: Analyzing trace with hash 834332986, now seen corresponding path program 1 times [2024-12-02 13:12:21,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:12:21,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259333335] [2024-12-02 13:12:21,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:12:21,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:12:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:12:21,905 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 13:12:21,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:12:21,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259333335] [2024-12-02 13:12:21,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259333335] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:12:21,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:12:21,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:12:21,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731392324] [2024-12-02 13:12:21,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:12:21,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:12:21,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:12:21,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:12:21,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:12:21,907 INFO L87 Difference]: Start difference. First operand 574001 states and 1201077 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17)