./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec9_product32.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_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/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_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec9_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/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_2b6c2b4d-1b95-4429-9a07-1313e57ad023/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 6f20249a191004f50add5285446ee5ffba043f1ff9b40e0e115c641082e595e2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:48:15,315 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:48:15,373 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 14:48:15,378 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:48:15,378 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:48:15,401 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:48:15,401 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:48:15,402 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:48:15,402 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:48:15,402 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:48:15,402 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:48:15,402 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:48:15,403 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:48:15,403 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:48:15,403 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:48:15,403 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:48:15,403 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:48:15,404 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:48:15,404 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:48:15,404 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:48:15,404 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:48:15,404 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:48:15,404 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:48:15,404 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:48:15,404 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:48:15,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:48:15,404 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:48:15,404 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:48:15,405 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:48:15,405 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:48:15,405 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:48:15,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:48:15,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:48:15,405 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:48:15,405 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:48:15,405 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:48:15,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:48:15,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:48:15,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:48:15,406 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:48:15,406 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:48:15,406 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:48:15,406 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:48:15,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:48:15,406 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:48:15,406 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:48:15,406 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:48:15,406 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:48:15,406 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_2b6c2b4d-1b95-4429-9a07-1313e57ad023/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 -> 6f20249a191004f50add5285446ee5ffba043f1ff9b40e0e115c641082e595e2 [2024-12-02 14:48:15,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:48:15,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:48:15,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:48:15,660 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:48:15,661 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:48:15,662 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/elevator_spec9_product32.cil.c [2024-12-02 14:48:18,437 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/data/663daa100/790431cd2cfd43c5a1315ce3381df428/FLAGddf8ffc71 [2024-12-02 14:48:18,710 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:48:18,711 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/sv-benchmarks/c/product-lines/elevator_spec9_product32.cil.c [2024-12-02 14:48:18,729 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/data/663daa100/790431cd2cfd43c5a1315ce3381df428/FLAGddf8ffc71 [2024-12-02 14:48:18,744 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/data/663daa100/790431cd2cfd43c5a1315ce3381df428 [2024-12-02 14:48:18,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:48:18,747 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:48:18,748 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:48:18,748 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:48:18,752 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:48:18,753 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:48:18" (1/1) ... [2024-12-02 14:48:18,754 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd62253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:48:18, skipping insertion in model container [2024-12-02 14:48:18,754 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:48:18" (1/1) ... [2024-12-02 14:48:18,800 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:48:19,040 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_2b6c2b4d-1b95-4429-9a07-1313e57ad023/sv-benchmarks/c/product-lines/elevator_spec9_product32.cil.c[17414,17427] [2024-12-02 14:48:19,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:48:19,331 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:48:19,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2024-12-02 14:48:19,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [716] [2024-12-02 14:48:19,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [725] [2024-12-02 14:48:19,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [739] [2024-12-02 14:48:19,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [905] [2024-12-02 14:48:19,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2574] [2024-12-02 14:48:19,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2940] [2024-12-02 14:48:19,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2978] [2024-12-02 14:48:19,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3330] [2024-12-02 14:48:19,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3448] [2024-12-02 14:48:19,364 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_2b6c2b4d-1b95-4429-9a07-1313e57ad023/sv-benchmarks/c/product-lines/elevator_spec9_product32.cil.c[17414,17427] [2024-12-02 14:48:19,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:48:19,475 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:48:19,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:48:19 WrapperNode [2024-12-02 14:48:19,476 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:48:19,477 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:48:19,477 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:48:19,477 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:48:19,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:48:19" (1/1) ... [2024-12-02 14:48:19,508 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:48:19" (1/1) ... [2024-12-02 14:48:19,547 INFO L138 Inliner]: procedures = 99, calls = 352, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 932 [2024-12-02 14:48:19,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:48:19,547 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:48:19,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:48:19,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:48:19,558 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:48:19" (1/1) ... [2024-12-02 14:48:19,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:48:19" (1/1) ... [2024-12-02 14:48:19,564 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:48:19" (1/1) ... [2024-12-02 14:48:19,590 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 14:48:19,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:48:19" (1/1) ... [2024-12-02 14:48:19,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:48:19" (1/1) ... [2024-12-02 14:48:19,610 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:48:19" (1/1) ... [2024-12-02 14:48:19,613 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:48:19" (1/1) ... [2024-12-02 14:48:19,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:48:19" (1/1) ... [2024-12-02 14:48:19,645 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:48:19" (1/1) ... [2024-12-02 14:48:19,649 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:48:19" (1/1) ... [2024-12-02 14:48:19,658 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:48:19,659 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:48:19,659 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:48:19,659 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:48:19,660 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:48:19" (1/1) ... [2024-12-02 14:48:19,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:48:19,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:48:19,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:48:19,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:48:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-12-02 14:48:19,724 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-12-02 14:48:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-12-02 14:48:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-12-02 14:48:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-12-02 14:48:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-12-02 14:48:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2024-12-02 14:48:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2024-12-02 14:48:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 14:48:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 14:48:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-12-02 14:48:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-12-02 14:48:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-12-02 14:48:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-12-02 14:48:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-12-02 14:48:19,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-12-02 14:48:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-12-02 14:48:19,726 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-12-02 14:48:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-12-02 14:48:19,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-12-02 14:48:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-12-02 14:48:19,726 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-12-02 14:48:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:48:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-12-02 14:48:19,726 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-12-02 14:48:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-12-02 14:48:19,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-12-02 14:48:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-12-02 14:48:19,726 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-12-02 14:48:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-12-02 14:48:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-12-02 14:48:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 14:48:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 14:48:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-12-02 14:48:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-12-02 14:48:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-12-02 14:48:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-12-02 14:48:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-12-02 14:48:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-12-02 14:48:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-12-02 14:48:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-12-02 14:48:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-12-02 14:48:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-12-02 14:48:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-12-02 14:48:19,728 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-12-02 14:48:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-12-02 14:48:19,728 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-12-02 14:48:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-12-02 14:48:19,728 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-12-02 14:48:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2024-12-02 14:48:19,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2024-12-02 14:48:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:48:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 14:48:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 14:48:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 14:48:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 14:48:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 14:48:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 14:48:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 14:48:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 14:48:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 14:48:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 14:48:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 14:48:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 14:48:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 14:48:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 14:48:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 14:48:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 14:48:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 14:48:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 14:48:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 14:48:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-12-02 14:48:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-12-02 14:48:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:48:19,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:48:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-12-02 14:48:19,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-12-02 14:48:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2024-12-02 14:48:19,730 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2024-12-02 14:48:19,904 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:48:19,906 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:48:21,201 INFO L? ?]: Removed 478 outVars from TransFormulas that were not future-live. [2024-12-02 14:48:21,201 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:48:21,225 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:48:21,225 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 14:48:21,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:48:21 BoogieIcfgContainer [2024-12-02 14:48:21,226 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:48:21,228 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:48:21,228 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:48:21,233 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:48:21,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:48:18" (1/3) ... [2024-12-02 14:48:21,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5daddeef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:48:21, skipping insertion in model container [2024-12-02 14:48:21,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:48:19" (2/3) ... [2024-12-02 14:48:21,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5daddeef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:48:21, skipping insertion in model container [2024-12-02 14:48:21,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:48:21" (3/3) ... [2024-12-02 14:48:21,235 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product32.cil.c [2024-12-02 14:48:21,258 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:48:21,260 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec9_product32.cil.c that has 29 procedures, 599 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 14:48:21,323 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:48:21,335 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;@36a079c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:48:21,335 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:48:21,341 INFO L276 IsEmpty]: Start isEmpty. Operand has 599 states, 466 states have (on average 1.6781115879828326) internal successors, (782), 489 states have internal predecessors, (782), 103 states have call successors, (103), 28 states have call predecessors, (103), 28 states have return successors, (103), 96 states have call predecessors, (103), 103 states have call successors, (103) [2024-12-02 14:48:21,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 14:48:21,352 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:21,353 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 14:48:21,353 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:21,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:21,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1695859997, now seen corresponding path program 1 times [2024-12-02 14:48:21,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:21,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955390288] [2024-12-02 14:48:21,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:21,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:21,848 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 14:48:21,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:21,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955390288] [2024-12-02 14:48:21,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955390288] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:21,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:48:21,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:48:21,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441092261] [2024-12-02 14:48:21,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:21,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:48:21,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:21,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:48:21,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:48:21,877 INFO L87 Difference]: Start difference. First operand has 599 states, 466 states have (on average 1.6781115879828326) internal successors, (782), 489 states have internal predecessors, (782), 103 states have call successors, (103), 28 states have call predecessors, (103), 28 states have return successors, (103), 96 states have call predecessors, (103), 103 states have call successors, (103) 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:22,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:22,039 INFO L93 Difference]: Finished difference Result 1178 states and 1951 transitions. [2024-12-02 14:48:22,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:48:22,041 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2024-12-02 14:48:22,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:22,059 INFO L225 Difference]: With dead ends: 1178 [2024-12-02 14:48:22,059 INFO L226 Difference]: Without dead ends: 591 [2024-12-02 14:48:22,067 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 14:48:22,070 INFO L435 NwaCegarLoop]: 967 mSDtfsCounter, 5 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2897 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 14:48:22,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2897 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:48:22,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2024-12-02 14:48:22,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2024-12-02 14:48:22,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 460 states have (on average 1.673913043478261) internal successors, (770), 481 states have internal predecessors, (770), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2024-12-02 14:48:22,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 971 transitions. [2024-12-02 14:48:22,154 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 971 transitions. Word has length 62 [2024-12-02 14:48:22,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:22,154 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 971 transitions. [2024-12-02 14:48:22,155 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:22,155 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 971 transitions. [2024-12-02 14:48:22,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 14:48:22,159 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:22,159 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 14:48:22,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 14:48:22,160 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:22,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:22,161 INFO L85 PathProgramCache]: Analyzing trace with hash 109471947, now seen corresponding path program 1 times [2024-12-02 14:48:22,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:22,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889903715] [2024-12-02 14:48:22,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:22,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:22,391 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 14:48:22,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:22,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889903715] [2024-12-02 14:48:22,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889903715] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:22,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:48:22,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:48:22,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83366236] [2024-12-02 14:48:22,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:22,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:48:22,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:22,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:48:22,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:48:22,394 INFO L87 Difference]: Start difference. First operand 591 states and 971 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:22,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:22,478 INFO L93 Difference]: Finished difference Result 1164 states and 1919 transitions. [2024-12-02 14:48:22,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:48:22,480 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2024-12-02 14:48:22,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:22,487 INFO L225 Difference]: With dead ends: 1164 [2024-12-02 14:48:22,487 INFO L226 Difference]: Without dead ends: 591 [2024-12-02 14:48:22,490 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 14:48:22,491 INFO L435 NwaCegarLoop]: 960 mSDtfsCounter, 4 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2876 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 14:48:22,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2876 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:48:22,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2024-12-02 14:48:22,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2024-12-02 14:48:22,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 460 states have (on average 1.6717391304347826) internal successors, (769), 481 states have internal predecessors, (769), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2024-12-02 14:48:22,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 970 transitions. [2024-12-02 14:48:22,527 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 970 transitions. Word has length 64 [2024-12-02 14:48:22,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:22,527 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 970 transitions. [2024-12-02 14:48:22,528 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:22,528 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 970 transitions. [2024-12-02 14:48:22,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 14:48:22,530 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:22,531 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 14:48:22,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:48:22,531 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:22,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:22,531 INFO L85 PathProgramCache]: Analyzing trace with hash -726479310, now seen corresponding path program 1 times [2024-12-02 14:48:22,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:22,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302844705] [2024-12-02 14:48:22,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:22,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:22,704 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 14:48:22,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:22,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302844705] [2024-12-02 14:48:22,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302844705] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:22,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:48:22,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:48:22,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267224416] [2024-12-02 14:48:22,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:22,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:48:22,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:22,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:48:22,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:48:22,706 INFO L87 Difference]: Start difference. First operand 591 states and 970 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:22,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:22,780 INFO L93 Difference]: Finished difference Result 1164 states and 1918 transitions. [2024-12-02 14:48:22,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:48:22,781 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2024-12-02 14:48:22,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:22,788 INFO L225 Difference]: With dead ends: 1164 [2024-12-02 14:48:22,788 INFO L226 Difference]: Without dead ends: 591 [2024-12-02 14:48:22,791 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 14:48:22,792 INFO L435 NwaCegarLoop]: 960 mSDtfsCounter, 3 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2876 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 14:48:22,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2876 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:48:22,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2024-12-02 14:48:22,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2024-12-02 14:48:22,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 460 states have (on average 1.6695652173913043) internal successors, (768), 481 states have internal predecessors, (768), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2024-12-02 14:48:22,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 969 transitions. [2024-12-02 14:48:22,827 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 969 transitions. Word has length 65 [2024-12-02 14:48:22,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:22,827 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 969 transitions. [2024-12-02 14:48:22,828 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:22,828 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 969 transitions. [2024-12-02 14:48:22,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-12-02 14:48:22,829 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:22,829 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 14:48:22,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 14:48:22,830 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:22,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:22,830 INFO L85 PathProgramCache]: Analyzing trace with hash -633369425, now seen corresponding path program 1 times [2024-12-02 14:48:22,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:22,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674303583] [2024-12-02 14:48:22,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:22,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:23,008 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 14:48:23,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:23,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674303583] [2024-12-02 14:48:23,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674303583] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:23,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:48:23,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:48:23,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253985383] [2024-12-02 14:48:23,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:23,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:48:23,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:23,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:48:23,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:48:23,010 INFO L87 Difference]: Start difference. First operand 591 states and 969 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:23,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:23,072 INFO L93 Difference]: Finished difference Result 1164 states and 1917 transitions. [2024-12-02 14:48:23,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:48:23,074 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2024-12-02 14:48:23,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:23,080 INFO L225 Difference]: With dead ends: 1164 [2024-12-02 14:48:23,080 INFO L226 Difference]: Without dead ends: 591 [2024-12-02 14:48:23,083 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 14:48:23,084 INFO L435 NwaCegarLoop]: 960 mSDtfsCounter, 2 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2876 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 14:48:23,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2876 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:48:23,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2024-12-02 14:48:23,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2024-12-02 14:48:23,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 460 states have (on average 1.6673913043478261) internal successors, (767), 481 states have internal predecessors, (767), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2024-12-02 14:48:23,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 968 transitions. [2024-12-02 14:48:23,115 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 968 transitions. Word has length 66 [2024-12-02 14:48:23,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:23,115 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 968 transitions. [2024-12-02 14:48:23,116 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:23,116 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 968 transitions. [2024-12-02 14:48:23,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 14:48:23,117 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:23,117 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 14:48:23,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 14:48:23,117 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:23,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:23,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1804135210, now seen corresponding path program 1 times [2024-12-02 14:48:23,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:23,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388992406] [2024-12-02 14:48:23,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:23,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:23,261 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 14:48:23,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:23,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388992406] [2024-12-02 14:48:23,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388992406] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:23,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:48:23,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:48:23,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951357794] [2024-12-02 14:48:23,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:23,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:48:23,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:23,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:48:23,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:48:23,263 INFO L87 Difference]: Start difference. First operand 591 states and 968 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:23,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:23,323 INFO L93 Difference]: Finished difference Result 1164 states and 1916 transitions. [2024-12-02 14:48:23,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:48:23,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2024-12-02 14:48:23,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:23,330 INFO L225 Difference]: With dead ends: 1164 [2024-12-02 14:48:23,330 INFO L226 Difference]: Without dead ends: 591 [2024-12-02 14:48:23,333 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 14:48:23,334 INFO L435 NwaCegarLoop]: 960 mSDtfsCounter, 1 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2876 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 14:48:23,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2876 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:48:23,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2024-12-02 14:48:23,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2024-12-02 14:48:23,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 460 states have (on average 1.6652173913043478) internal successors, (766), 481 states have internal predecessors, (766), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2024-12-02 14:48:23,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 967 transitions. [2024-12-02 14:48:23,364 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 967 transitions. Word has length 67 [2024-12-02 14:48:23,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:23,364 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 967 transitions. [2024-12-02 14:48:23,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:23,364 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 967 transitions. [2024-12-02 14:48:23,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 14:48:23,365 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:23,365 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 14:48:23,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 14:48:23,366 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:23,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:23,366 INFO L85 PathProgramCache]: Analyzing trace with hash 794626195, now seen corresponding path program 1 times [2024-12-02 14:48:23,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:23,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145197894] [2024-12-02 14:48:23,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:23,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:23,638 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 14:48:23,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:23,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145197894] [2024-12-02 14:48:23,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145197894] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:23,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:48:23,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 14:48:23,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711607748] [2024-12-02 14:48:23,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:23,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 14:48:23,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:23,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 14:48:23,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:48:23,640 INFO L87 Difference]: Start difference. First operand 591 states and 967 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 14:48:23,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:23,810 INFO L93 Difference]: Finished difference Result 1130 states and 1848 transitions. [2024-12-02 14:48:23,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 14:48:23,811 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 68 [2024-12-02 14:48:23,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:23,817 INFO L225 Difference]: With dead ends: 1130 [2024-12-02 14:48:23,817 INFO L226 Difference]: Without dead ends: 606 [2024-12-02 14:48:23,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:48:23,820 INFO L435 NwaCegarLoop]: 955 mSDtfsCounter, 91 mSDsluCounter, 6602 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 7557 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:48:23,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 7557 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:48:23,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-12-02 14:48:23,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 604. [2024-12-02 14:48:23,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 470 states have (on average 1.6617021276595745) internal successors, (781), 493 states have internal predecessors, (781), 104 states have call successors, (104), 28 states have call predecessors, (104), 29 states have return successors, (101), 96 states have call predecessors, (101), 99 states have call successors, (101) [2024-12-02 14:48:23,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 986 transitions. [2024-12-02 14:48:23,855 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 986 transitions. Word has length 68 [2024-12-02 14:48:23,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:23,856 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 986 transitions. [2024-12-02 14:48:23,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 14:48:23,856 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 986 transitions. [2024-12-02 14:48:23,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 14:48:23,858 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:23,858 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 14:48:23,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 14:48:23,858 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:23,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:23,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1927816788, now seen corresponding path program 1 times [2024-12-02 14:48:23,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:23,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770480765] [2024-12-02 14:48:23,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:23,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:23,978 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 14:48:23,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:23,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770480765] [2024-12-02 14:48:23,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770480765] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:23,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:48:23,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:48:23,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384459266] [2024-12-02 14:48:23,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:23,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:48:23,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:23,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:48:23,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:48:23,981 INFO L87 Difference]: Start difference. First operand 604 states and 986 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:24,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:24,046 INFO L93 Difference]: Finished difference Result 1182 states and 1942 transitions. [2024-12-02 14:48:24,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:48:24,047 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2024-12-02 14:48:24,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:24,053 INFO L225 Difference]: With dead ends: 1182 [2024-12-02 14:48:24,053 INFO L226 Difference]: Without dead ends: 585 [2024-12-02 14:48:24,057 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 14:48:24,058 INFO L435 NwaCegarLoop]: 961 mSDtfsCounter, 0 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2878 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 14:48:24,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2878 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:48:24,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-12-02 14:48:24,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 585. [2024-12-02 14:48:24,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 454 states have (on average 1.6563876651982379) internal successors, (752), 475 states have internal predecessors, (752), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2024-12-02 14:48:24,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 953 transitions. [2024-12-02 14:48:24,098 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 953 transitions. Word has length 68 [2024-12-02 14:48:24,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:24,099 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 953 transitions. [2024-12-02 14:48:24,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:24,099 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 953 transitions. [2024-12-02 14:48:24,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 14:48:24,101 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:24,101 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 14:48:24,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 14:48:24,101 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:24,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:24,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1221218850, now seen corresponding path program 1 times [2024-12-02 14:48:24,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:24,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284600560] [2024-12-02 14:48:24,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:24,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:24,309 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 14:48:24,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:24,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284600560] [2024-12-02 14:48:24,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284600560] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:24,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:48:24,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:48:24,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141899530] [2024-12-02 14:48:24,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:24,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:48:24,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:24,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:48:24,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:48:24,311 INFO L87 Difference]: Start difference. First operand 585 states and 953 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:24,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:24,543 INFO L93 Difference]: Finished difference Result 1127 states and 1840 transitions. [2024-12-02 14:48:24,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:48:24,544 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2024-12-02 14:48:24,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:24,550 INFO L225 Difference]: With dead ends: 1127 [2024-12-02 14:48:24,550 INFO L226 Difference]: Without dead ends: 594 [2024-12-02 14:48:24,553 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 14:48:24,554 INFO L435 NwaCegarLoop]: 910 mSDtfsCounter, 55 mSDsluCounter, 3611 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4521 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 14:48:24,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4521 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 14:48:24,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-12-02 14:48:24,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 585. [2024-12-02 14:48:24,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 454 states have (on average 1.6475770925110131) internal successors, (748), 475 states have internal predecessors, (748), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2024-12-02 14:48:24,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 949 transitions. [2024-12-02 14:48:24,581 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 949 transitions. Word has length 69 [2024-12-02 14:48:24,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:24,581 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 949 transitions. [2024-12-02 14:48:24,581 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:24,582 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 949 transitions. [2024-12-02 14:48:24,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-12-02 14:48:24,583 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:24,583 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] [2024-12-02 14:48:24,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 14:48:24,583 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:24,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:24,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1462694320, now seen corresponding path program 1 times [2024-12-02 14:48:24,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:24,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578602269] [2024-12-02 14:48:24,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:24,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:24,748 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 14:48:24,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:24,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578602269] [2024-12-02 14:48:24,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578602269] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:24,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:48:24,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:48:24,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492881441] [2024-12-02 14:48:24,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:24,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:48:24,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:24,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:48:24,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:48:24,750 INFO L87 Difference]: Start difference. First operand 585 states and 949 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:24,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:24,961 INFO L93 Difference]: Finished difference Result 1127 states and 1836 transitions. [2024-12-02 14:48:24,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:48:24,962 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2024-12-02 14:48:24,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:24,968 INFO L225 Difference]: With dead ends: 1127 [2024-12-02 14:48:24,968 INFO L226 Difference]: Without dead ends: 594 [2024-12-02 14:48:24,971 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 14:48:24,971 INFO L435 NwaCegarLoop]: 910 mSDtfsCounter, 54 mSDsluCounter, 3611 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4521 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 14:48:24,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4521 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:48:24,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-12-02 14:48:24,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 585. [2024-12-02 14:48:24,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 454 states have (on average 1.6387665198237886) internal successors, (744), 475 states have internal predecessors, (744), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2024-12-02 14:48:24,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 945 transitions. [2024-12-02 14:48:25,001 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 945 transitions. Word has length 70 [2024-12-02 14:48:25,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:25,001 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 945 transitions. [2024-12-02 14:48:25,001 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:25,001 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 945 transitions. [2024-12-02 14:48:25,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-12-02 14:48:25,003 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:25,003 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] [2024-12-02 14:48:25,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 14:48:25,003 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:25,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:25,004 INFO L85 PathProgramCache]: Analyzing trace with hash -2063845639, now seen corresponding path program 1 times [2024-12-02 14:48:25,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:25,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5607101] [2024-12-02 14:48:25,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:25,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:25,154 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 14:48:25,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:25,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5607101] [2024-12-02 14:48:25,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5607101] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:25,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:48:25,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:48:25,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525845738] [2024-12-02 14:48:25,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:25,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:48:25,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:25,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:48:25,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:48:25,156 INFO L87 Difference]: Start difference. First operand 585 states and 945 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:25,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:25,363 INFO L93 Difference]: Finished difference Result 1127 states and 1832 transitions. [2024-12-02 14:48:25,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:48:25,364 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2024-12-02 14:48:25,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:25,370 INFO L225 Difference]: With dead ends: 1127 [2024-12-02 14:48:25,370 INFO L226 Difference]: Without dead ends: 594 [2024-12-02 14:48:25,373 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 14:48:25,373 INFO L435 NwaCegarLoop]: 909 mSDtfsCounter, 53 mSDsluCounter, 3594 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4503 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 14:48:25,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4503 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:48:25,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-12-02 14:48:25,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 585. [2024-12-02 14:48:25,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 454 states have (on average 1.6299559471365639) internal successors, (740), 475 states have internal predecessors, (740), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2024-12-02 14:48:25,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 941 transitions. [2024-12-02 14:48:25,400 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 941 transitions. Word has length 71 [2024-12-02 14:48:25,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:25,401 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 941 transitions. [2024-12-02 14:48:25,401 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:25,401 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 941 transitions. [2024-12-02 14:48:25,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-12-02 14:48:25,402 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:25,402 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] [2024-12-02 14:48:25,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 14:48:25,402 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:25,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:25,403 INFO L85 PathProgramCache]: Analyzing trace with hash -545559943, now seen corresponding path program 1 times [2024-12-02 14:48:25,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:25,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881643572] [2024-12-02 14:48:25,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:25,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:25,566 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 14:48:25,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:25,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881643572] [2024-12-02 14:48:25,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881643572] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:25,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:48:25,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:48:25,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490804247] [2024-12-02 14:48:25,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:25,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:48:25,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:25,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:48:25,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:48:25,568 INFO L87 Difference]: Start difference. First operand 585 states and 941 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 14:48:25,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:25,657 INFO L93 Difference]: Finished difference Result 1118 states and 1814 transitions. [2024-12-02 14:48:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 14:48:25,657 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 71 [2024-12-02 14:48:25,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:25,663 INFO L225 Difference]: With dead ends: 1118 [2024-12-02 14:48:25,663 INFO L226 Difference]: Without dead ends: 564 [2024-12-02 14:48:25,666 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 14:48:25,667 INFO L435 NwaCegarLoop]: 930 mSDtfsCounter, 84 mSDsluCounter, 4577 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5507 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 14:48:25,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5507 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:48:25,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-12-02 14:48:25,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2024-12-02 14:48:25,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 433 states have (on average 1.630484988452656) internal successors, (706), 454 states have internal predecessors, (706), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2024-12-02 14:48:25,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 907 transitions. [2024-12-02 14:48:25,694 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 907 transitions. Word has length 71 [2024-12-02 14:48:25,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:25,694 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 907 transitions. [2024-12-02 14:48:25,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 14:48:25,694 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 907 transitions. [2024-12-02 14:48:25,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-12-02 14:48:25,695 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:25,696 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] [2024-12-02 14:48:25,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 14:48:25,696 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:25,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:25,696 INFO L85 PathProgramCache]: Analyzing trace with hash -545936981, now seen corresponding path program 1 times [2024-12-02 14:48:25,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:25,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980532967] [2024-12-02 14:48:25,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:25,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:25,830 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 14:48:25,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:25,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980532967] [2024-12-02 14:48:25,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980532967] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:25,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:48:25,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:48:25,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560947918] [2024-12-02 14:48:25,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:25,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:48:25,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:25,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:48:25,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:48:25,832 INFO L87 Difference]: Start difference. First operand 564 states and 907 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:25,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:25,924 INFO L93 Difference]: Finished difference Result 1097 states and 1780 transitions. [2024-12-02 14:48:25,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:48:25,924 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2024-12-02 14:48:25,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:25,930 INFO L225 Difference]: With dead ends: 1097 [2024-12-02 14:48:25,930 INFO L226 Difference]: Without dead ends: 564 [2024-12-02 14:48:25,949 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 14:48:25,950 INFO L435 NwaCegarLoop]: 890 mSDtfsCounter, 17 mSDsluCounter, 3551 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4441 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 14:48:25,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4441 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:48:25,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-12-02 14:48:25,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2024-12-02 14:48:25,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 433 states have (on average 1.628175519630485) internal successors, (705), 454 states have internal predecessors, (705), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2024-12-02 14:48:25,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 906 transitions. [2024-12-02 14:48:25,973 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 906 transitions. Word has length 72 [2024-12-02 14:48:25,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:25,973 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 906 transitions. [2024-12-02 14:48:25,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:25,974 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 906 transitions. [2024-12-02 14:48:25,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-12-02 14:48:25,975 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:25,975 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] [2024-12-02 14:48:25,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 14:48:25,975 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:25,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:25,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1563911148, now seen corresponding path program 1 times [2024-12-02 14:48:25,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:25,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688113932] [2024-12-02 14:48:25,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:25,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:26,076 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 14:48:26,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:26,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688113932] [2024-12-02 14:48:26,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688113932] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:26,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:48:26,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:48:26,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193366610] [2024-12-02 14:48:26,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:26,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:48:26,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:26,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:48:26,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:48:26,078 INFO L87 Difference]: Start difference. First operand 564 states and 906 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:26,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:26,151 INFO L93 Difference]: Finished difference Result 1097 states and 1779 transitions. [2024-12-02 14:48:26,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:48:26,152 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), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2024-12-02 14:48:26,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:26,156 INFO L225 Difference]: With dead ends: 1097 [2024-12-02 14:48:26,156 INFO L226 Difference]: Without dead ends: 564 [2024-12-02 14:48:26,159 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 14:48:26,159 INFO L435 NwaCegarLoop]: 890 mSDtfsCounter, 16 mSDsluCounter, 3551 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4441 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 14:48:26,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4441 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:48:26,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-12-02 14:48:26,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2024-12-02 14:48:26,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 433 states have (on average 1.625866050808314) internal successors, (704), 454 states have internal predecessors, (704), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2024-12-02 14:48:26,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 905 transitions. [2024-12-02 14:48:26,176 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 905 transitions. Word has length 73 [2024-12-02 14:48:26,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:26,176 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 905 transitions. [2024-12-02 14:48:26,176 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), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:48:26,177 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 905 transitions. [2024-12-02 14:48:26,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-12-02 14:48:26,178 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:26,178 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] [2024-12-02 14:48:26,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 14:48:26,178 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:26,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:26,178 INFO L85 PathProgramCache]: Analyzing trace with hash 410125734, now seen corresponding path program 1 times [2024-12-02 14:48:26,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:26,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652214497] [2024-12-02 14:48:26,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:26,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:26,372 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 14:48:26,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:26,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652214497] [2024-12-02 14:48:26,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652214497] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:26,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:48:26,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 14:48:26,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696812718] [2024-12-02 14:48:26,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:26,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 14:48:26,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:26,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 14:48:26,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:48:26,374 INFO L87 Difference]: Start difference. First operand 564 states and 905 transitions. Second operand has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 14:48:26,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:26,482 INFO L93 Difference]: Finished difference Result 1091 states and 1767 transitions. [2024-12-02 14:48:26,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 14:48:26,483 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 74 [2024-12-02 14:48:26,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:26,487 INFO L225 Difference]: With dead ends: 1091 [2024-12-02 14:48:26,487 INFO L226 Difference]: Without dead ends: 564 [2024-12-02 14:48:26,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:48:26,490 INFO L435 NwaCegarLoop]: 889 mSDtfsCounter, 6 mSDsluCounter, 7090 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7979 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:48:26,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7979 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:48:26,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-12-02 14:48:26,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2024-12-02 14:48:26,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 433 states have (on average 1.6235565819861433) internal successors, (703), 454 states have internal predecessors, (703), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2024-12-02 14:48:26,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 904 transitions. [2024-12-02 14:48:26,507 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 904 transitions. Word has length 74 [2024-12-02 14:48:26,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:26,508 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 904 transitions. [2024-12-02 14:48:26,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 14:48:26,508 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 904 transitions. [2024-12-02 14:48:26,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-02 14:48:26,509 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:26,510 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] [2024-12-02 14:48:26,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 14:48:26,510 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:26,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:26,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1378407007, now seen corresponding path program 1 times [2024-12-02 14:48:26,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:26,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093212477] [2024-12-02 14:48:26,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:26,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:26,703 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 14:48:26,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:26,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093212477] [2024-12-02 14:48:26,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093212477] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:26,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:48:26,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:48:26,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980425898] [2024-12-02 14:48:26,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:26,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:48:26,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:26,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:48:26,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:48:26,705 INFO L87 Difference]: Start difference. First operand 564 states and 904 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 6 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-12-02 14:48:29,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:29,529 INFO L93 Difference]: Finished difference Result 1737 states and 2847 transitions. [2024-12-02 14:48:29,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:48:29,530 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 6 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 75 [2024-12-02 14:48:29,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:29,536 INFO L225 Difference]: With dead ends: 1737 [2024-12-02 14:48:29,536 INFO L226 Difference]: Without dead ends: 1218 [2024-12-02 14:48:29,538 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 14:48:29,539 INFO L435 NwaCegarLoop]: 351 mSDtfsCounter, 3352 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 2027 mSolverCounterSat, 802 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3423 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 802 IncrementalHoareTripleChecker+Valid, 2027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:48:29,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3423 Valid, 954 Invalid, 2829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [802 Valid, 2027 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-12-02 14:48:29,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2024-12-02 14:48:29,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1086. [2024-12-02 14:48:29,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 841 states have (on average 1.643281807372176) internal successors, (1382), 871 states have internal predecessors, (1382), 193 states have call successors, (193), 50 states have call predecessors, (193), 51 states have return successors, (195), 177 states have call predecessors, (195), 188 states have call successors, (195) [2024-12-02 14:48:29,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1770 transitions. [2024-12-02 14:48:29,591 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1770 transitions. Word has length 75 [2024-12-02 14:48:29,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:29,591 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1770 transitions. [2024-12-02 14:48:29,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 6 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-12-02 14:48:29,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1770 transitions. [2024-12-02 14:48:29,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 14:48:29,595 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:29,595 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 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] [2024-12-02 14:48:29,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 14:48:29,596 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:29,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:29,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1665951556, now seen corresponding path program 1 times [2024-12-02 14:48:29,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:29,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780574981] [2024-12-02 14:48:29,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:29,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:29,753 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 14:48:29,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:29,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780574981] [2024-12-02 14:48:29,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780574981] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:48:29,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477808718] [2024-12-02 14:48:29,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:29,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:48:29,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:48:29,756 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:48:29,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:48:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:30,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 1718 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:48:30,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:48:30,199 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 14:48:30,200 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:48:30,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477808718] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:30,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:48:30,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-12-02 14:48:30,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827422837] [2024-12-02 14:48:30,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:30,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:48:30,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:30,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:48:30,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:48:30,201 INFO L87 Difference]: Start difference. First operand 1086 states and 1770 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 14:48:30,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:30,311 INFO L93 Difference]: Finished difference Result 2730 states and 4499 transitions. [2024-12-02 14:48:30,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:48:30,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 130 [2024-12-02 14:48:30,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:30,326 INFO L225 Difference]: With dead ends: 2730 [2024-12-02 14:48:30,326 INFO L226 Difference]: Without dead ends: 1689 [2024-12-02 14:48:30,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:48:30,333 INFO L435 NwaCegarLoop]: 1023 mSDtfsCounter, 889 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:48:30,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 1866 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:48:30,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2024-12-02 14:48:30,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1687. [2024-12-02 14:48:30,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1302 states have (on average 1.6443932411674347) internal successors, (2141), 1348 states have internal predecessors, (2141), 304 states have call successors, (304), 76 states have call predecessors, (304), 80 states have return successors, (325), 287 states have call predecessors, (325), 299 states have call successors, (325) [2024-12-02 14:48:30,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2770 transitions. [2024-12-02 14:48:30,459 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2770 transitions. Word has length 130 [2024-12-02 14:48:30,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:30,460 INFO L471 AbstractCegarLoop]: Abstraction has 1687 states and 2770 transitions. [2024-12-02 14:48:30,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 14:48:30,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2770 transitions. [2024-12-02 14:48:30,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 14:48:30,465 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:30,465 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 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] [2024-12-02 14:48:30,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:48:30,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 14:48:30,666 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:30,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:30,666 INFO L85 PathProgramCache]: Analyzing trace with hash 104635779, now seen corresponding path program 1 times [2024-12-02 14:48:30,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:30,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221560151] [2024-12-02 14:48:30,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:30,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:30,881 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 14:48:30,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:30,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221560151] [2024-12-02 14:48:30,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221560151] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:48:30,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637887170] [2024-12-02 14:48:30,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:30,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:48:30,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:48:30,884 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:48:30,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 14:48:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:31,281 INFO L256 TraceCheckSpWp]: Trace formula consists of 1720 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:48:31,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:48:31,345 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 14:48:31,345 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:48:31,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637887170] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:31,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:48:31,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-12-02 14:48:31,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596917700] [2024-12-02 14:48:31,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:31,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:48:31,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:31,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:48:31,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:48:31,347 INFO L87 Difference]: Start difference. First operand 1687 states and 2770 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 14:48:31,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:31,454 INFO L93 Difference]: Finished difference Result 4535 states and 7527 transitions. [2024-12-02 14:48:31,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:48:31,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 131 [2024-12-02 14:48:31,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:31,473 INFO L225 Difference]: With dead ends: 4535 [2024-12-02 14:48:31,473 INFO L226 Difference]: Without dead ends: 2893 [2024-12-02 14:48:31,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:48:31,480 INFO L435 NwaCegarLoop]: 977 mSDtfsCounter, 888 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 1822 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:48:31,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [888 Valid, 1822 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:48:31,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2024-12-02 14:48:31,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 2890. [2024-12-02 14:48:31,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2890 states, 2225 states have (on average 1.644943820224719) internal successors, (3660), 2303 states have internal predecessors, (3660), 526 states have call successors, (526), 128 states have call predecessors, (526), 138 states have return successors, (603), 507 states have call predecessors, (603), 521 states have call successors, (603) [2024-12-02 14:48:31,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 4789 transitions. [2024-12-02 14:48:31,613 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 4789 transitions. Word has length 131 [2024-12-02 14:48:31,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:31,613 INFO L471 AbstractCegarLoop]: Abstraction has 2890 states and 4789 transitions. [2024-12-02 14:48:31,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 14:48:31,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 4789 transitions. [2024-12-02 14:48:31,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 14:48:31,618 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:31,618 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 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] [2024-12-02 14:48:31,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 14:48:31,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 14:48:31,819 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:31,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:31,819 INFO L85 PathProgramCache]: Analyzing trace with hash -2107559268, now seen corresponding path program 1 times [2024-12-02 14:48:31,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:31,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755251948] [2024-12-02 14:48:31,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:31,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:32,203 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 14:48:32,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:32,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755251948] [2024-12-02 14:48:32,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755251948] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:32,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:48:32,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 14:48:32,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175633534] [2024-12-02 14:48:32,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:32,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 14:48:32,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:32,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 14:48:32,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-12-02 14:48:32,205 INFO L87 Difference]: Start difference. First operand 2890 states and 4789 transitions. Second operand has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2024-12-02 14:48:37,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:37,662 INFO L93 Difference]: Finished difference Result 10613 states and 17662 transitions. [2024-12-02 14:48:37,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 14:48:37,662 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 131 [2024-12-02 14:48:37,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:37,712 INFO L225 Difference]: With dead ends: 10613 [2024-12-02 14:48:37,712 INFO L226 Difference]: Without dead ends: 7768 [2024-12-02 14:48:37,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2024-12-02 14:48:37,729 INFO L435 NwaCegarLoop]: 659 mSDtfsCounter, 2341 mSDsluCounter, 3506 mSDsCounter, 0 mSdLazyCounter, 10905 mSolverCounterSat, 667 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2419 SdHoareTripleChecker+Valid, 4165 SdHoareTripleChecker+Invalid, 11572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 667 IncrementalHoareTripleChecker+Valid, 10905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:48:37,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2419 Valid, 4165 Invalid, 11572 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [667 Valid, 10905 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-12-02 14:48:37,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7768 states. [2024-12-02 14:48:38,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7768 to 7549. [2024-12-02 14:48:38,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7549 states, 5630 states have (on average 1.605328596802842) internal successors, (9038), 5844 states have internal predecessors, (9038), 1547 states have call successors, (1547), 315 states have call predecessors, (1547), 371 states have return successors, (1846), 1521 states have call predecessors, (1846), 1542 states have call successors, (1846) [2024-12-02 14:48:38,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7549 states to 7549 states and 12431 transitions. [2024-12-02 14:48:38,266 INFO L78 Accepts]: Start accepts. Automaton has 7549 states and 12431 transitions. Word has length 131 [2024-12-02 14:48:38,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:38,267 INFO L471 AbstractCegarLoop]: Abstraction has 7549 states and 12431 transitions. [2024-12-02 14:48:38,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2024-12-02 14:48:38,267 INFO L276 IsEmpty]: Start isEmpty. Operand 7549 states and 12431 transitions. [2024-12-02 14:48:38,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 14:48:38,274 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:38,275 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 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] [2024-12-02 14:48:38,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 14:48:38,275 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:38,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:38,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1051509146, now seen corresponding path program 1 times [2024-12-02 14:48:38,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:38,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725167241] [2024-12-02 14:48:38,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:38,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:38,451 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 14:48:38,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:38,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725167241] [2024-12-02 14:48:38,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725167241] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:48:38,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373699988] [2024-12-02 14:48:38,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:38,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:48:38,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:48:38,454 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:48:38,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 14:48:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:38,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 1722 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:48:38,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:48:38,858 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 14:48:38,858 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:48:38,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373699988] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:38,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:48:38,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-12-02 14:48:38,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74431654] [2024-12-02 14:48:38,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:38,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:48:38,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:38,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:48:38,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:48:38,860 INFO L87 Difference]: Start difference. First operand 7549 states and 12431 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 14:48:39,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:39,278 INFO L93 Difference]: Finished difference Result 21360 states and 35756 transitions. [2024-12-02 14:48:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:48:39,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 132 [2024-12-02 14:48:39,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:39,381 INFO L225 Difference]: With dead ends: 21360 [2024-12-02 14:48:39,381 INFO L226 Difference]: Without dead ends: 13856 [2024-12-02 14:48:39,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:48:39,413 INFO L435 NwaCegarLoop]: 966 mSDtfsCounter, 887 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 1814 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:48:39,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 1814 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:48:39,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13856 states. [2024-12-02 14:48:40,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13856 to 13852. [2024-12-02 14:48:40,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13852 states, 10309 states have (on average 1.601901251333786) internal successors, (16514), 10707 states have internal predecessors, (16514), 2863 states have call successors, (2863), 571 states have call predecessors, (2863), 679 states have return successors, (3772), 2837 states have call predecessors, (3772), 2858 states have call successors, (3772) [2024-12-02 14:48:40,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13852 states to 13852 states and 23149 transitions. [2024-12-02 14:48:40,337 INFO L78 Accepts]: Start accepts. Automaton has 13852 states and 23149 transitions. Word has length 132 [2024-12-02 14:48:40,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:40,337 INFO L471 AbstractCegarLoop]: Abstraction has 13852 states and 23149 transitions. [2024-12-02 14:48:40,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 14:48:40,338 INFO L276 IsEmpty]: Start isEmpty. Operand 13852 states and 23149 transitions. [2024-12-02 14:48:40,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 14:48:40,342 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:40,342 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 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] [2024-12-02 14:48:40,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 14:48:40,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:48:40,543 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:40,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:40,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1762707749, now seen corresponding path program 1 times [2024-12-02 14:48:40,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:40,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426398237] [2024-12-02 14:48:40,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:40,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:40,707 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 14:48:40,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:40,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426398237] [2024-12-02 14:48:40,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426398237] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:48:40,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759497666] [2024-12-02 14:48:40,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:40,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:48:40,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:48:40,710 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:48:40,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 14:48:41,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:41,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:48:41,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:48:41,114 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 14:48:41,114 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:48:41,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759497666] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:41,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:48:41,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-12-02 14:48:41,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210095081] [2024-12-02 14:48:41,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:41,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:48:41,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:41,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:48:41,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:48:41,116 INFO L87 Difference]: Start difference. First operand 13852 states and 23149 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 14:48:41,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:41,877 INFO L93 Difference]: Finished difference Result 40271 states and 68997 transitions. [2024-12-02 14:48:41,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:48:41,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 133 [2024-12-02 14:48:41,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:42,051 INFO L225 Difference]: With dead ends: 40271 [2024-12-02 14:48:42,051 INFO L226 Difference]: Without dead ends: 26464 [2024-12-02 14:48:42,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:48:42,110 INFO L435 NwaCegarLoop]: 956 mSDtfsCounter, 886 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 1807 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:48:42,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 1807 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:48:42,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26464 states. [2024-12-02 14:48:43,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26464 to 26459. [2024-12-02 14:48:43,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26459 states, 19668 states have (on average 1.5984340044742729) internal successors, (31438), 20434 states have internal predecessors, (31438), 5495 states have call successors, (5495), 1083 states have call predecessors, (5495), 1295 states have return successors, (8314), 5469 states have call predecessors, (8314), 5490 states have call successors, (8314) [2024-12-02 14:48:43,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26459 states to 26459 states and 45247 transitions. [2024-12-02 14:48:43,527 INFO L78 Accepts]: Start accepts. Automaton has 26459 states and 45247 transitions. Word has length 133 [2024-12-02 14:48:43,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:43,528 INFO L471 AbstractCegarLoop]: Abstraction has 26459 states and 45247 transitions. [2024-12-02 14:48:43,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 14:48:43,528 INFO L276 IsEmpty]: Start isEmpty. Operand 26459 states and 45247 transitions. [2024-12-02 14:48:43,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 14:48:43,534 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:43,534 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 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] [2024-12-02 14:48:43,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 14:48:43,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:48:43,735 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:43,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:43,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1190877816, now seen corresponding path program 1 times [2024-12-02 14:48:43,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:43,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347844175] [2024-12-02 14:48:43,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:43,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:43,897 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 14:48:43,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:43,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347844175] [2024-12-02 14:48:43,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347844175] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:48:43,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829345502] [2024-12-02 14:48:43,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:43,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:48:43,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:48:43,899 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:48:43,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 14:48:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:44,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 1726 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:48:44,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:48:44,309 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 14:48:44,309 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:48:44,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829345502] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:44,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:48:44,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-12-02 14:48:44,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763822562] [2024-12-02 14:48:44,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:44,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:48:44,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:44,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:48:44,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:48:44,311 INFO L87 Difference]: Start difference. First operand 26459 states and 45247 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 14:48:45,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:45,978 INFO L93 Difference]: Finished difference Result 78094 states and 139021 transitions. [2024-12-02 14:48:45,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:48:45,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 134 [2024-12-02 14:48:45,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:46,314 INFO L225 Difference]: With dead ends: 78094 [2024-12-02 14:48:46,315 INFO L226 Difference]: Without dead ends: 51672 [2024-12-02 14:48:46,448 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:48:46,449 INFO L435 NwaCegarLoop]: 967 mSDtfsCounter, 885 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 1822 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:48:46,449 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 1822 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:48:46,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51672 states. [2024-12-02 14:48:48,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51672 to 51666. [2024-12-02 14:48:48,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51666 states, 38380 states have (on average 1.5943981240229286) internal successors, (61193), 39882 states have internal predecessors, (61193), 10759 states have call successors, (10759), 2107 states have call predecessors, (10759), 2526 states have return successors, (19779), 10732 states have call predecessors, (19779), 10754 states have call successors, (19779) [2024-12-02 14:48:49,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51666 states to 51666 states and 91731 transitions. [2024-12-02 14:48:49,022 INFO L78 Accepts]: Start accepts. Automaton has 51666 states and 91731 transitions. Word has length 134 [2024-12-02 14:48:49,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:49,023 INFO L471 AbstractCegarLoop]: Abstraction has 51666 states and 91731 transitions. [2024-12-02 14:48:49,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 14:48:49,023 INFO L276 IsEmpty]: Start isEmpty. Operand 51666 states and 91731 transitions. [2024-12-02 14:48:49,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 14:48:49,037 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:49,038 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:48:49,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 14:48:49,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-12-02 14:48:49,238 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:49,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:49,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1518081851, now seen corresponding path program 1 times [2024-12-02 14:48:49,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:49,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400544887] [2024-12-02 14:48:49,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:49,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:49,460 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-12-02 14:48:49,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:49,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400544887] [2024-12-02 14:48:49,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400544887] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:49,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:48:49,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:48:49,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738927066] [2024-12-02 14:48:49,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:49,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:48:49,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:49,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:48:49,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:48:49,462 INFO L87 Difference]: Start difference. First operand 51666 states and 91731 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 14:48:52,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:52,434 INFO L93 Difference]: Finished difference Result 103815 states and 194069 transitions. [2024-12-02 14:48:52,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:48:52,435 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 204 [2024-12-02 14:48:52,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:52,768 INFO L225 Difference]: With dead ends: 103815 [2024-12-02 14:48:52,769 INFO L226 Difference]: Without dead ends: 52194 [2024-12-02 14:48:53,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:48:53,100 INFO L435 NwaCegarLoop]: 886 mSDtfsCounter, 898 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 3311 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:48:53,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [902 Valid, 3311 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 14:48:53,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52194 states. [2024-12-02 14:48:55,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52194 to 52194. [2024-12-02 14:48:55,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52194 states, 38776 states have (on average 1.5883278316484424) internal successors, (61589), 40278 states have internal predecessors, (61589), 10759 states have call successors, (10759), 2239 states have call predecessors, (10759), 2658 states have return successors, (19878), 10732 states have call predecessors, (19878), 10754 states have call successors, (19878) [2024-12-02 14:48:56,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52194 states to 52194 states and 92226 transitions. [2024-12-02 14:48:56,227 INFO L78 Accepts]: Start accepts. Automaton has 52194 states and 92226 transitions. Word has length 204 [2024-12-02 14:48:56,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:48:56,228 INFO L471 AbstractCegarLoop]: Abstraction has 52194 states and 92226 transitions. [2024-12-02 14:48:56,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 14:48:56,228 INFO L276 IsEmpty]: Start isEmpty. Operand 52194 states and 92226 transitions. [2024-12-02 14:48:56,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-12-02 14:48:56,242 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:48:56,242 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:48:56,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 14:48:56,243 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:48:56,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:48:56,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1646292697, now seen corresponding path program 1 times [2024-12-02 14:48:56,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:48:56,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792529546] [2024-12-02 14:48:56,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:48:56,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:48:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:48:56,462 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-12-02 14:48:56,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:48:56,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792529546] [2024-12-02 14:48:56,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792529546] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:48:56,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:48:56,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:48:56,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806342848] [2024-12-02 14:48:56,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:48:56,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:48:56,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:48:56,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:48:56,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:48:56,464 INFO L87 Difference]: Start difference. First operand 52194 states and 92226 transitions. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 14:48:59,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:48:59,387 INFO L93 Difference]: Finished difference Result 105003 states and 195026 transitions. [2024-12-02 14:48:59,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:48:59,388 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 205 [2024-12-02 14:48:59,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:48:59,741 INFO L225 Difference]: With dead ends: 105003 [2024-12-02 14:48:59,741 INFO L226 Difference]: Without dead ends: 52854 [2024-12-02 14:49:00,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:49:00,100 INFO L435 NwaCegarLoop]: 888 mSDtfsCounter, 897 mSDsluCounter, 2429 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 3317 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:00,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 3317 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 14:49:00,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52854 states. [2024-12-02 14:49:02,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52854 to 52854. [2024-12-02 14:49:02,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52854 states, 39304 states have (on average 1.5804243842865866) internal successors, (62117), 40806 states have internal predecessors, (62117), 10759 states have call successors, (10759), 2371 states have call predecessors, (10759), 2790 states have return successors, (19977), 10732 states have call predecessors, (19977), 10754 states have call successors, (19977) [2024-12-02 14:49:02,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52854 states to 52854 states and 92853 transitions. [2024-12-02 14:49:02,798 INFO L78 Accepts]: Start accepts. Automaton has 52854 states and 92853 transitions. Word has length 205 [2024-12-02 14:49:02,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:02,799 INFO L471 AbstractCegarLoop]: Abstraction has 52854 states and 92853 transitions. [2024-12-02 14:49:02,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 14:49:02,799 INFO L276 IsEmpty]: Start isEmpty. Operand 52854 states and 92853 transitions. [2024-12-02 14:49:02,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-12-02 14:49:02,817 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:02,817 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:02,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 14:49:02,817 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:02,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:02,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1486950857, now seen corresponding path program 1 times [2024-12-02 14:49:02,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:02,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30896352] [2024-12-02 14:49:02,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:02,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:03,076 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-12-02 14:49:03,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:03,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30896352] [2024-12-02 14:49:03,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30896352] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:03,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:03,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:49:03,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056392963] [2024-12-02 14:49:03,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:03,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:49:03,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:03,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:49:03,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:49:03,078 INFO L87 Difference]: Start difference. First operand 52854 states and 92853 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 14:49:06,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:06,522 INFO L93 Difference]: Finished difference Result 106455 states and 196247 transitions. [2024-12-02 14:49:06,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:49:06,523 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 206 [2024-12-02 14:49:06,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:06,827 INFO L225 Difference]: With dead ends: 106455 [2024-12-02 14:49:06,827 INFO L226 Difference]: Without dead ends: 53646 [2024-12-02 14:49:07,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:49:07,237 INFO L435 NwaCegarLoop]: 888 mSDtfsCounter, 897 mSDsluCounter, 2429 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 3317 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:07,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 3317 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 14:49:07,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53646 states. [2024-12-02 14:49:09,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53646 to 53646. [2024-12-02 14:49:09,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53646 states, 39964 states have (on average 1.5708387548793914) internal successors, (62777), 41466 states have internal predecessors, (62777), 10759 states have call successors, (10759), 2503 states have call predecessors, (10759), 2922 states have return successors, (20076), 10732 states have call predecessors, (20076), 10754 states have call successors, (20076) [2024-12-02 14:49:09,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53646 states to 53646 states and 93612 transitions. [2024-12-02 14:49:09,403 INFO L78 Accepts]: Start accepts. Automaton has 53646 states and 93612 transitions. Word has length 206 [2024-12-02 14:49:09,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:09,403 INFO L471 AbstractCegarLoop]: Abstraction has 53646 states and 93612 transitions. [2024-12-02 14:49:09,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 14:49:09,404 INFO L276 IsEmpty]: Start isEmpty. Operand 53646 states and 93612 transitions. [2024-12-02 14:49:09,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-12-02 14:49:09,415 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:09,415 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:09,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 14:49:09,416 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:09,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:09,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1371616093, now seen corresponding path program 1 times [2024-12-02 14:49:09,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:09,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073340543] [2024-12-02 14:49:09,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:09,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:09,575 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-12-02 14:49:09,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:09,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073340543] [2024-12-02 14:49:09,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073340543] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:09,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:09,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:49:09,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607113673] [2024-12-02 14:49:09,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:09,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:49:09,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:09,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:49:09,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:49:09,576 INFO L87 Difference]: Start difference. First operand 53646 states and 93612 transitions. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 14:49:12,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:12,611 INFO L93 Difference]: Finished difference Result 108171 states and 197732 transitions. [2024-12-02 14:49:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:49:12,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 207 [2024-12-02 14:49:12,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:13,005 INFO L225 Difference]: With dead ends: 108171 [2024-12-02 14:49:13,006 INFO L226 Difference]: Without dead ends: 54570 [2024-12-02 14:49:13,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:49:13,375 INFO L435 NwaCegarLoop]: 888 mSDtfsCounter, 897 mSDsluCounter, 2429 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 3317 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:13,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 3317 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 14:49:13,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54570 states. [2024-12-02 14:49:15,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54570 to 54570. [2024-12-02 14:49:15,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54570 states, 40756 states have (on average 1.5597458042987535) internal successors, (63569), 42258 states have internal predecessors, (63569), 10759 states have call successors, (10759), 2635 states have call predecessors, (10759), 3054 states have return successors, (20175), 10732 states have call predecessors, (20175), 10754 states have call successors, (20175) [2024-12-02 14:49:15,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54570 states to 54570 states and 94503 transitions. [2024-12-02 14:49:15,837 INFO L78 Accepts]: Start accepts. Automaton has 54570 states and 94503 transitions. Word has length 207 [2024-12-02 14:49:15,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:15,837 INFO L471 AbstractCegarLoop]: Abstraction has 54570 states and 94503 transitions. [2024-12-02 14:49:15,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 14:49:15,837 INFO L276 IsEmpty]: Start isEmpty. Operand 54570 states and 94503 transitions. [2024-12-02 14:49:16,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-12-02 14:49:16,028 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:16,028 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:16,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 14:49:16,028 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:16,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:16,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1542142866, now seen corresponding path program 1 times [2024-12-02 14:49:16,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:16,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189046239] [2024-12-02 14:49:16,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:16,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:16,160 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-12-02 14:49:16,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:16,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189046239] [2024-12-02 14:49:16,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189046239] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:16,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:16,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:49:16,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332525690] [2024-12-02 14:49:16,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:16,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:49:16,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:16,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:49:16,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:49:16,162 INFO L87 Difference]: Start difference. First operand 54570 states and 94503 transitions. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 14:49:19,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:19,570 INFO L93 Difference]: Finished difference Result 109359 states and 198029 transitions. [2024-12-02 14:49:19,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:49:19,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 208 [2024-12-02 14:49:19,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:19,999 INFO L225 Difference]: With dead ends: 109359 [2024-12-02 14:49:19,999 INFO L226 Difference]: Without dead ends: 54768 [2024-12-02 14:49:20,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:49:20,379 INFO L435 NwaCegarLoop]: 877 mSDtfsCounter, 888 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 3284 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:20,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 3284 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 14:49:20,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54768 states. [2024-12-02 14:49:22,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54768 to 54768. [2024-12-02 14:49:22,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54768 states, 40855 states have (on average 1.5575816913474483) internal successors, (63635), 42456 states have internal predecessors, (63635), 10759 states have call successors, (10759), 2635 states have call predecessors, (10759), 3153 states have return successors, (20274), 10732 states have call predecessors, (20274), 10754 states have call successors, (20274) [2024-12-02 14:49:22,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54768 states to 54768 states and 94668 transitions. [2024-12-02 14:49:23,031 INFO L78 Accepts]: Start accepts. Automaton has 54768 states and 94668 transitions. Word has length 208 [2024-12-02 14:49:23,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:23,032 INFO L471 AbstractCegarLoop]: Abstraction has 54768 states and 94668 transitions. [2024-12-02 14:49:23,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 14:49:23,032 INFO L276 IsEmpty]: Start isEmpty. Operand 54768 states and 94668 transitions. [2024-12-02 14:49:23,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-12-02 14:49:23,042 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:23,042 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:23,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 14:49:23,042 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:23,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:23,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1674466611, now seen corresponding path program 1 times [2024-12-02 14:49:23,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:23,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313020275] [2024-12-02 14:49:23,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:23,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:23,326 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-12-02 14:49:23,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:23,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313020275] [2024-12-02 14:49:23,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313020275] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:23,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:23,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 14:49:23,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470795471] [2024-12-02 14:49:23,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:23,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 14:49:23,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:23,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 14:49:23,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:49:23,328 INFO L87 Difference]: Start difference. First operand 54768 states and 94668 transitions. Second operand has 10 states, 10 states have (on average 12.8) internal successors, (128), 8 states have internal predecessors, (128), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (26), 7 states have call predecessors, (26), 4 states have call successors, (26) [2024-12-02 14:49:32,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:32,294 INFO L93 Difference]: Finished difference Result 177244 states and 342017 transitions. [2024-12-02 14:49:32,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 14:49:32,295 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 8 states have internal predecessors, (128), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (26), 7 states have call predecessors, (26), 4 states have call successors, (26) Word has length 208 [2024-12-02 14:49:32,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:33,205 INFO L225 Difference]: With dead ends: 177244 [2024-12-02 14:49:33,205 INFO L226 Difference]: Without dead ends: 122511 [2024-12-02 14:49:33,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2024-12-02 14:49:33,719 INFO L435 NwaCegarLoop]: 836 mSDtfsCounter, 2784 mSDsluCounter, 3936 mSDsCounter, 0 mSdLazyCounter, 8952 mSolverCounterSat, 900 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2786 SdHoareTripleChecker+Valid, 4772 SdHoareTripleChecker+Invalid, 9852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 900 IncrementalHoareTripleChecker+Valid, 8952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:33,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2786 Valid, 4772 Invalid, 9852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [900 Valid, 8952 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-12-02 14:49:33,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122511 states. [2024-12-02 14:49:39,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122511 to 122354. [2024-12-02 14:49:39,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122354 states, 90292 states have (on average 1.5515660302130865) internal successors, (140094), 94000 states have internal predecessors, (140094), 25297 states have call successors, (25297), 5271 states have call predecessors, (25297), 6764 states have return successors, (59483), 25674 states have call predecessors, (59483), 25292 states have call successors, (59483) [2024-12-02 14:49:40,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122354 states to 122354 states and 224874 transitions. [2024-12-02 14:49:40,773 INFO L78 Accepts]: Start accepts. Automaton has 122354 states and 224874 transitions. Word has length 208 [2024-12-02 14:49:40,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:40,773 INFO L471 AbstractCegarLoop]: Abstraction has 122354 states and 224874 transitions. [2024-12-02 14:49:40,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 8 states have internal predecessors, (128), 5 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (26), 7 states have call predecessors, (26), 4 states have call successors, (26) [2024-12-02 14:49:40,773 INFO L276 IsEmpty]: Start isEmpty. Operand 122354 states and 224874 transitions. [2024-12-02 14:49:40,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-12-02 14:49:40,803 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:40,803 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:40,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 14:49:40,803 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:40,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:40,803 INFO L85 PathProgramCache]: Analyzing trace with hash -645236074, now seen corresponding path program 1 times [2024-12-02 14:49:40,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:40,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720600928] [2024-12-02 14:49:40,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:40,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:40,973 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-12-02 14:49:40,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:40,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720600928] [2024-12-02 14:49:40,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720600928] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:40,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:40,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 14:49:40,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161656081] [2024-12-02 14:49:40,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:40,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 14:49:40,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:40,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 14:49:40,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 14:49:40,975 INFO L87 Difference]: Start difference. First operand 122354 states and 224874 transitions. Second operand has 8 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 14:49:44,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:44,634 INFO L93 Difference]: Finished difference Result 176590 states and 318609 transitions. [2024-12-02 14:49:44,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 14:49:44,635 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 211 [2024-12-02 14:49:44,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:44,983 INFO L225 Difference]: With dead ends: 176590 [2024-12-02 14:49:44,983 INFO L226 Difference]: Without dead ends: 54270 [2024-12-02 14:49:45,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:49:45,472 INFO L435 NwaCegarLoop]: 884 mSDtfsCounter, 8 mSDsluCounter, 5281 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 6165 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:45,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 6165 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:49:45,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54270 states. [2024-12-02 14:49:47,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54270 to 54270. [2024-12-02 14:49:47,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54270 states, 40555 states have (on average 1.5567254345949944) internal successors, (63133), 42156 states have internal predecessors, (63133), 10561 states have call successors, (10561), 2635 states have call predecessors, (10561), 3153 states have return successors, (20076), 10534 states have call predecessors, (20076), 10556 states have call successors, (20076) [2024-12-02 14:49:47,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54270 states to 54270 states and 93770 transitions. [2024-12-02 14:49:48,076 INFO L78 Accepts]: Start accepts. Automaton has 54270 states and 93770 transitions. Word has length 211 [2024-12-02 14:49:48,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:48,076 INFO L471 AbstractCegarLoop]: Abstraction has 54270 states and 93770 transitions. [2024-12-02 14:49:48,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 14:49:48,076 INFO L276 IsEmpty]: Start isEmpty. Operand 54270 states and 93770 transitions. [2024-12-02 14:49:48,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-12-02 14:49:48,086 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:48,086 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:48,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 14:49:48,086 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:48,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:48,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1168145407, now seen corresponding path program 1 times [2024-12-02 14:49:48,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:48,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343305510] [2024-12-02 14:49:48,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:48,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:48,561 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 14:49:48,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:48,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343305510] [2024-12-02 14:49:48,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343305510] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:48,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:48,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 14:49:48,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865472596] [2024-12-02 14:49:48,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:48,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 14:49:48,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:48,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 14:49:48,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:49:48,563 INFO L87 Difference]: Start difference. First operand 54270 states and 93770 transitions. Second operand has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 5 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (27), 6 states have call predecessors, (27), 4 states have call successors, (27) [2024-12-02 14:49:52,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:49:52,694 INFO L93 Difference]: Finished difference Result 108696 states and 195613 transitions. [2024-12-02 14:49:52,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 14:49:52,695 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 5 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (27), 6 states have call predecessors, (27), 4 states have call successors, (27) Word has length 216 [2024-12-02 14:49:52,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:49:53,234 INFO L225 Difference]: With dead ends: 108696 [2024-12-02 14:49:53,235 INFO L226 Difference]: Without dead ends: 54468 [2024-12-02 14:49:53,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:49:53,563 INFO L435 NwaCegarLoop]: 357 mSDtfsCounter, 1342 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 3575 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 3956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 3575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:49:53,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 1771 Invalid, 3956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 3575 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 14:49:53,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54468 states. [2024-12-02 14:49:56,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54468 to 54468. [2024-12-02 14:49:56,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54468 states, 40753 states have (on average 1.5540205629033446) internal successors, (63331), 42255 states have internal predecessors, (63331), 10561 states have call successors, (10561), 2635 states have call predecessors, (10561), 3153 states have return successors, (20076), 10633 states have call predecessors, (20076), 10556 states have call successors, (20076) [2024-12-02 14:49:57,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54468 states to 54468 states and 93968 transitions. [2024-12-02 14:49:57,257 INFO L78 Accepts]: Start accepts. Automaton has 54468 states and 93968 transitions. Word has length 216 [2024-12-02 14:49:57,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:49:57,257 INFO L471 AbstractCegarLoop]: Abstraction has 54468 states and 93968 transitions. [2024-12-02 14:49:57,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 5 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (27), 6 states have call predecessors, (27), 4 states have call successors, (27) [2024-12-02 14:49:57,258 INFO L276 IsEmpty]: Start isEmpty. Operand 54468 states and 93968 transitions. [2024-12-02 14:49:57,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-12-02 14:49:57,267 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:57,267 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:57,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 14:49:57,267 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:57,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:57,268 INFO L85 PathProgramCache]: Analyzing trace with hash -768092529, now seen corresponding path program 1 times [2024-12-02 14:49:57,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:57,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528700962] [2024-12-02 14:49:57,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:57,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:57,580 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-12-02 14:49:57,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:57,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528700962] [2024-12-02 14:49:57,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528700962] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:57,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:57,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 14:49:57,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89993592] [2024-12-02 14:49:57,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:57,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 14:49:57,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:57,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 14:49:57,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 14:49:57,581 INFO L87 Difference]: Start difference. First operand 54468 states and 93968 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 5 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (27), 6 states have call predecessors, (27), 4 states have call successors, (27) [2024-12-02 14:50:07,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:50:07,417 INFO L93 Difference]: Finished difference Result 191163 states and 348937 transitions. [2024-12-02 14:50:07,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 14:50:07,418 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 5 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (27), 6 states have call predecessors, (27), 4 states have call successors, (27) Word has length 217 [2024-12-02 14:50:07,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:50:08,278 INFO L225 Difference]: With dead ends: 191163 [2024-12-02 14:50:08,279 INFO L226 Difference]: Without dead ends: 136341 [2024-12-02 14:50:08,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-12-02 14:50:08,627 INFO L435 NwaCegarLoop]: 520 mSDtfsCounter, 3617 mSDsluCounter, 1800 mSDsCounter, 0 mSdLazyCounter, 5430 mSolverCounterSat, 1014 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3701 SdHoareTripleChecker+Valid, 2320 SdHoareTripleChecker+Invalid, 6444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1014 IncrementalHoareTripleChecker+Valid, 5430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:50:08,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3701 Valid, 2320 Invalid, 6444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1014 Valid, 5430 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-12-02 14:50:08,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136341 states. [2024-12-02 14:50:15,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136341 to 135349. [2024-12-02 14:50:16,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135349 states, 101512 states have (on average 1.522657419812436) internal successors, (154568), 105033 states have internal predecessors, (154568), 25363 states have call successors, (25363), 7436 states have call predecessors, (25363), 8473 states have return successors, (58020), 25343 states have call predecessors, (58020), 25358 states have call successors, (58020) [2024-12-02 14:50:17,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135349 states to 135349 states and 237951 transitions. [2024-12-02 14:50:17,211 INFO L78 Accepts]: Start accepts. Automaton has 135349 states and 237951 transitions. Word has length 217 [2024-12-02 14:50:17,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:50:17,211 INFO L471 AbstractCegarLoop]: Abstraction has 135349 states and 237951 transitions. [2024-12-02 14:50:17,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 5 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (27), 6 states have call predecessors, (27), 4 states have call successors, (27) [2024-12-02 14:50:17,212 INFO L276 IsEmpty]: Start isEmpty. Operand 135349 states and 237951 transitions. [2024-12-02 14:50:17,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-12-02 14:50:17,220 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:50:17,220 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:17,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 14:50:17,220 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:50:17,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:50:17,221 INFO L85 PathProgramCache]: Analyzing trace with hash -143811539, now seen corresponding path program 1 times [2024-12-02 14:50:17,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:50:17,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817623477] [2024-12-02 14:50:17,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:50:17,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:50:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:50:17,419 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-12-02 14:50:17,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:50:17,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817623477] [2024-12-02 14:50:17,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817623477] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:50:17,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995183886] [2024-12-02 14:50:17,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:50:17,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:50:17,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:50:17,422 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:50:17,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 14:50:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:50:17,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 2206 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:50:17,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:50:17,829 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-12-02 14:50:17,829 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:50:17,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995183886] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:50:17,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:50:17,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-12-02 14:50:17,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692782019] [2024-12-02 14:50:17,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:50:17,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:50:17,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:50:17,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:50:17,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 14:50:17,830 INFO L87 Difference]: Start difference. First operand 135349 states and 237951 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-12-02 14:50:25,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:50:25,985 INFO L93 Difference]: Finished difference Result 275110 states and 508465 transitions. [2024-12-02 14:50:25,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:50:25,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 219 [2024-12-02 14:50:25,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:50:27,144 INFO L225 Difference]: With dead ends: 275110 [2024-12-02 14:50:27,144 INFO L226 Difference]: Without dead ends: 139804 [2024-12-02 14:50:27,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:50:27,865 INFO L435 NwaCegarLoop]: 827 mSDtfsCounter, 144 mSDsluCounter, 1631 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2458 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:50:27,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2458 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:50:28,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139804 states. [2024-12-02 14:50:35,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139804 to 139210. [2024-12-02 14:50:35,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139210 states, 105274 states have (on average 1.5368941998974106) internal successors, (161795), 108795 states have internal predecessors, (161795), 25363 states have call successors, (25363), 7535 states have call predecessors, (25363), 8572 states have return successors, (58020), 25343 states have call predecessors, (58020), 25358 states have call successors, (58020) [2024-12-02 14:50:36,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139210 states to 139210 states and 245178 transitions. [2024-12-02 14:50:36,373 INFO L78 Accepts]: Start accepts. Automaton has 139210 states and 245178 transitions. Word has length 219 [2024-12-02 14:50:36,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:50:36,374 INFO L471 AbstractCegarLoop]: Abstraction has 139210 states and 245178 transitions. [2024-12-02 14:50:36,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-12-02 14:50:36,374 INFO L276 IsEmpty]: Start isEmpty. Operand 139210 states and 245178 transitions. [2024-12-02 14:50:36,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-12-02 14:50:36,632 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:50:36,632 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:36,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-12-02 14:50:36,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-12-02 14:50:36,832 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:50:36,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:50:36,833 INFO L85 PathProgramCache]: Analyzing trace with hash -2002552701, now seen corresponding path program 1 times [2024-12-02 14:50:36,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:50:36,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629449390] [2024-12-02 14:50:36,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:50:36,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:50:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:50:37,087 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-12-02 14:50:37,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:50:37,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629449390] [2024-12-02 14:50:37,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629449390] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:50:37,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337482955] [2024-12-02 14:50:37,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:50:37,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:50:37,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:50:37,089 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:50:37,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 14:50:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:50:37,413 INFO L256 TraceCheckSpWp]: Trace formula consists of 2211 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:50:37,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:50:37,442 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-12-02 14:50:37,442 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:50:37,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337482955] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:50:37,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:50:37,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2024-12-02 14:50:37,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194158841] [2024-12-02 14:50:37,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:50:37,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:50:37,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:50:37,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:50:37,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:50:37,443 INFO L87 Difference]: Start difference. First operand 139210 states and 245178 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-12-02 14:50:45,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:50:45,928 INFO L93 Difference]: Finished difference Result 279596 states and 511580 transitions. [2024-12-02 14:50:45,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:50:45,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 224 [2024-12-02 14:50:45,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:50:46,911 INFO L225 Difference]: With dead ends: 279596 [2024-12-02 14:50:46,911 INFO L226 Difference]: Without dead ends: 143665 [2024-12-02 14:50:47,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-12-02 14:50:47,630 INFO L435 NwaCegarLoop]: 828 mSDtfsCounter, 139 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:50:47,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2454 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:50:47,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143665 states. [2024-12-02 14:50:54,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143665 to 143071. [2024-12-02 14:50:54,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143071 states, 108937 states have (on average 1.5506485399818244) internal successors, (168923), 112458 states have internal predecessors, (168923), 25462 states have call successors, (25462), 7634 states have call predecessors, (25462), 8671 states have return successors, (58119), 25442 states have call predecessors, (58119), 25457 states have call successors, (58119) [2024-12-02 14:50:55,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143071 states to 143071 states and 252504 transitions. [2024-12-02 14:50:55,803 INFO L78 Accepts]: Start accepts. Automaton has 143071 states and 252504 transitions. Word has length 224 [2024-12-02 14:50:55,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:50:55,804 INFO L471 AbstractCegarLoop]: Abstraction has 143071 states and 252504 transitions. [2024-12-02 14:50:55,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-12-02 14:50:55,804 INFO L276 IsEmpty]: Start isEmpty. Operand 143071 states and 252504 transitions. [2024-12-02 14:50:55,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-12-02 14:50:55,814 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:50:55,814 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:55,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 14:50:56,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-12-02 14:50:56,015 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:50:56,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:50:56,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1080863792, now seen corresponding path program 1 times [2024-12-02 14:50:56,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:50:56,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976195074] [2024-12-02 14:50:56,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:50:56,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:50:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:50:56,148 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-12-02 14:50:56,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:50:56,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976195074] [2024-12-02 14:50:56,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976195074] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:50:56,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127983586] [2024-12-02 14:50:56,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:50:56,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:50:56,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:50:56,150 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:50:56,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6c2b4d-1b95-4429-9a07-1313e57ad023/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 14:50:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:50:56,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 2212 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:50:56,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:50:56,524 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-12-02 14:50:56,524 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:50:56,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127983586] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:50:56,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:50:56,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-12-02 14:50:56,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959036678] [2024-12-02 14:50:56,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:50:56,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:50:56,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:50:56,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:50:56,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:50:56,526 INFO L87 Difference]: Start difference. First operand 143071 states and 252504 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-12-02 14:51:04,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:51:04,788 INFO L93 Difference]: Finished difference Result 290851 states and 537314 transitions. [2024-12-02 14:51:04,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:51:04,789 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 225 [2024-12-02 14:51:04,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:51:06,099 INFO L225 Difference]: With dead ends: 290851 [2024-12-02 14:51:06,099 INFO L226 Difference]: Without dead ends: 147823 [2024-12-02 14:51:06,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 225 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 14:51:06,828 INFO L435 NwaCegarLoop]: 826 mSDtfsCounter, 142 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2455 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:51:06,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2455 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:51:06,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147823 states.