./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec2_product09.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_6f0f8277-0bc8-44f7-85da-fd9fa29c09ef/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f0f8277-0bc8-44f7-85da-fd9fa29c09ef/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_6f0f8277-0bc8-44f7-85da-fd9fa29c09ef/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f0f8277-0bc8-44f7-85da-fd9fa29c09ef/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec2_product09.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f0f8277-0bc8-44f7-85da-fd9fa29c09ef/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_6f0f8277-0bc8-44f7-85da-fd9fa29c09ef/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 4cb164e6307f0ddcae5850d7f4578967441d1456f6ed5a5be472ba090758b873 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:35:55,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:35:55,334 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f0f8277-0bc8-44f7-85da-fd9fa29c09ef/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 10:35:55,339 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:35:55,339 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:35:55,362 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:35:55,363 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:35:55,363 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:35:55,363 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:35:55,364 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:35:55,364 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:35:55,364 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:35:55,364 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:35:55,364 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:35:55,364 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:35:55,364 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:35:55,365 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:35:55,365 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:35:55,365 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:35:55,365 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:35:55,365 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:35:55,365 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:35:55,365 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:35:55,365 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:35:55,365 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:35:55,365 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:35:55,365 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:35:55,366 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:35:55,366 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:35:55,366 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:35:55,366 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:35:55,366 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:35:55,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:35:55,366 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:35:55,366 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:35:55,366 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:35:55,366 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:35:55,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:35:55,367 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:35:55,367 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:35:55,367 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:35:55,367 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:35:55,367 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:35:55,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:35:55,367 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:35:55,367 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:35:55,367 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:35:55,367 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:35:55,367 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_6f0f8277-0bc8-44f7-85da-fd9fa29c09ef/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 -> 4cb164e6307f0ddcae5850d7f4578967441d1456f6ed5a5be472ba090758b873 [2024-12-02 10:35:55,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:35:55,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:35:55,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:35:55,631 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:35:55,631 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:35:55,633 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f0f8277-0bc8-44f7-85da-fd9fa29c09ef/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/elevator_spec2_product09.cil.c [2024-12-02 10:35:58,351 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f0f8277-0bc8-44f7-85da-fd9fa29c09ef/bin/uautomizer-verify-84ZbGMXZE1/data/3e2f17f33/bd1ba6b7a6034f9eafaa89ac62c4ad54/FLAGb04f38aa2 [2024-12-02 10:35:58,631 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:35:58,631 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f0f8277-0bc8-44f7-85da-fd9fa29c09ef/sv-benchmarks/c/product-lines/elevator_spec2_product09.cil.c [2024-12-02 10:35:58,650 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f0f8277-0bc8-44f7-85da-fd9fa29c09ef/bin/uautomizer-verify-84ZbGMXZE1/data/3e2f17f33/bd1ba6b7a6034f9eafaa89ac62c4ad54/FLAGb04f38aa2 [2024-12-02 10:35:58,900 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f0f8277-0bc8-44f7-85da-fd9fa29c09ef/bin/uautomizer-verify-84ZbGMXZE1/data/3e2f17f33/bd1ba6b7a6034f9eafaa89ac62c4ad54 [2024-12-02 10:35:58,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:35:58,904 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:35:58,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:35:58,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:35:58,911 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:35:58,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:35:58" (1/1) ... [2024-12-02 10:35:58,912 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36babebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:58, skipping insertion in model container [2024-12-02 10:35:58,913 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:35:58" (1/1) ... [2024-12-02 10:35:58,958 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:35:59,278 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_6f0f8277-0bc8-44f7-85da-fd9fa29c09ef/sv-benchmarks/c/product-lines/elevator_spec2_product09.cil.c[28842,28855] [2024-12-02 10:35:59,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:35:59,428 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:35:59,437 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-12-02 10:35:59,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [412] [2024-12-02 10:35:59,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [532] [2024-12-02 10:35:59,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [716] [2024-12-02 10:35:59,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1383] [2024-12-02 10:35:59,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1418] [2024-12-02 10:35:59,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1427] [2024-12-02 10:35:59,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2869] [2024-12-02 10:35:59,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3235] [2024-12-02 10:35:59,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3247] [2024-12-02 10:35:59,480 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_6f0f8277-0bc8-44f7-85da-fd9fa29c09ef/sv-benchmarks/c/product-lines/elevator_spec2_product09.cil.c[28842,28855] [2024-12-02 10:35:59,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:35:59,571 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:35:59,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:59 WrapperNode [2024-12-02 10:35:59,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:35:59,572 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:35:59,572 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:35:59,572 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:35:59,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:59" (1/1) ... [2024-12-02 10:35:59,598 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:59" (1/1) ... [2024-12-02 10:35:59,632 INFO L138 Inliner]: procedures = 89, calls = 330, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 810 [2024-12-02 10:35:59,632 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:35:59,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:35:59,633 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:35:59,633 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:35:59,642 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:59" (1/1) ... [2024-12-02 10:35:59,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:59" (1/1) ... [2024-12-02 10:35:59,647 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:59" (1/1) ... [2024-12-02 10:35:59,670 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 10:35:59,670 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:59" (1/1) ... [2024-12-02 10:35:59,670 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:59" (1/1) ... [2024-12-02 10:35:59,687 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:59" (1/1) ... [2024-12-02 10:35:59,689 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:59" (1/1) ... [2024-12-02 10:35:59,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:59" (1/1) ... [2024-12-02 10:35:59,706 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:59" (1/1) ... [2024-12-02 10:35:59,710 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:59" (1/1) ... [2024-12-02 10:35:59,717 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:35:59,718 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:35:59,718 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:35:59,718 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:35:59,719 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:59" (1/1) ... [2024-12-02 10:35:59,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:35:59,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f0f8277-0bc8-44f7-85da-fd9fa29c09ef/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:59,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f0f8277-0bc8-44f7-85da-fd9fa29c09ef/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:35:59,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f0f8277-0bc8-44f7-85da-fd9fa29c09ef/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:35:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:35:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-12-02 10:35:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-12-02 10:35:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-12-02 10:35:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-12-02 10:35:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-12-02 10:35:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-12-02 10:35:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-12-02 10:35:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-12-02 10:35:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 10:35:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 10:35:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 10:35:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 10:35:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-12-02 10:35:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-12-02 10:35:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-12-02 10:35:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-12-02 10:35:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-12-02 10:35:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-12-02 10:35:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-12-02 10:35:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-12-02 10:35:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-12-02 10:35:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-12-02 10:35:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-12-02 10:35:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-12-02 10:35:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-12-02 10:35:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-12-02 10:35:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-12-02 10:35:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-12-02 10:35:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-12-02 10:35:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-12-02 10:35:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-12-02 10:35:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-12-02 10:35:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:35:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 10:35:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 10:35:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 10:35:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 10:35:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 10:35:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 10:35:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 10:35:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 10:35:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 10:35:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 10:35:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 10:35:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 10:35:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 10:35:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 10:35:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 10:35:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 10:35:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 10:35:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 10:35:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 10:35:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-12-02 10:35:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-12-02 10:35:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-12-02 10:35:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-12-02 10:35:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-12-02 10:35:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-12-02 10:35:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:35:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:35:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-12-02 10:35:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-12-02 10:35:59,948 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:35:59,949 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:36:01,045 INFO L? ?]: Removed 421 outVars from TransFormulas that were not future-live. [2024-12-02 10:36:01,045 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:36:01,066 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:36:01,066 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 10:36:01,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:36:01 BoogieIcfgContainer [2024-12-02 10:36:01,066 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:36:01,068 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:36:01,069 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:36:01,073 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:36:01,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:35:58" (1/3) ... [2024-12-02 10:36:01,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a644154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:36:01, skipping insertion in model container [2024-12-02 10:36:01,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:59" (2/3) ... [2024-12-02 10:36:01,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a644154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:36:01, skipping insertion in model container [2024-12-02 10:36:01,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:36:01" (3/3) ... [2024-12-02 10:36:01,076 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product09.cil.c [2024-12-02 10:36:01,088 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:36:01,089 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec2_product09.cil.c that has 21 procedures, 525 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 10:36:01,151 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:36:01,162 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;@539a2f79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:36:01,162 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:36:01,167 INFO L276 IsEmpty]: Start isEmpty. Operand has 525 states, 417 states have (on average 1.7194244604316546) internal successors, (717), 438 states have internal predecessors, (717), 86 states have call successors, (86), 20 states have call predecessors, (86), 20 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 10:36:01,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-12-02 10:36:01,182 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:01,182 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 10:36:01,183 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:01,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:01,186 INFO L85 PathProgramCache]: Analyzing trace with hash 88394997, now seen corresponding path program 1 times [2024-12-02 10:36:01,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:01,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125188688] [2024-12-02 10:36:01,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:01,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:01,680 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 10:36:01,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:01,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125188688] [2024-12-02 10:36:01,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125188688] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:01,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:01,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:36:01,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648822357] [2024-12-02 10:36:01,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:01,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:36:01,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:01,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:36:01,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:36:01,706 INFO L87 Difference]: Start difference. First operand has 525 states, 417 states have (on average 1.7194244604316546) internal successors, (717), 438 states have internal predecessors, (717), 86 states have call successors, (86), 20 states have call predecessors, (86), 20 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 10:36:01,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:01,839 INFO L93 Difference]: Finished difference Result 1030 states and 1753 transitions. [2024-12-02 10:36:01,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:36:01,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 74 [2024-12-02 10:36:01,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:01,856 INFO L225 Difference]: With dead ends: 1030 [2024-12-02 10:36:01,856 INFO L226 Difference]: Without dead ends: 517 [2024-12-02 10:36:01,863 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 10:36:01,866 INFO L435 NwaCegarLoop]: 868 mSDtfsCounter, 5 mSDsluCounter, 1732 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2600 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 10:36:01,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2600 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:01,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-12-02 10:36:01,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2024-12-02 10:36:01,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 411 states have (on average 1.7153284671532847) internal successors, (705), 430 states have internal predecessors, (705), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 10:36:01,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 872 transitions. [2024-12-02 10:36:01,936 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 872 transitions. Word has length 74 [2024-12-02 10:36:01,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:01,937 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 872 transitions. [2024-12-02 10:36:01,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 10:36:01,937 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 872 transitions. [2024-12-02 10:36:01,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-12-02 10:36:01,942 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:01,942 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:01,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:36:01,943 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:01,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:01,944 INFO L85 PathProgramCache]: Analyzing trace with hash 175461602, now seen corresponding path program 1 times [2024-12-02 10:36:01,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:01,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132260800] [2024-12-02 10:36:01,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:01,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:02,141 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 10:36:02,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:02,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132260800] [2024-12-02 10:36:02,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132260800] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:02,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:02,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:36:02,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572688906] [2024-12-02 10:36:02,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:02,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:36:02,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:02,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:36:02,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:36:02,145 INFO L87 Difference]: Start difference. First operand 517 states and 872 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 10:36:02,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:02,211 INFO L93 Difference]: Finished difference Result 1016 states and 1721 transitions. [2024-12-02 10:36:02,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:36:02,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 76 [2024-12-02 10:36:02,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:02,217 INFO L225 Difference]: With dead ends: 1016 [2024-12-02 10:36:02,217 INFO L226 Difference]: Without dead ends: 517 [2024-12-02 10:36:02,219 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 10:36:02,220 INFO L435 NwaCegarLoop]: 861 mSDtfsCounter, 4 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2579 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 10:36:02,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2579 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:02,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-12-02 10:36:02,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2024-12-02 10:36:02,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 411 states have (on average 1.7128953771289537) internal successors, (704), 430 states have internal predecessors, (704), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 10:36:02,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 871 transitions. [2024-12-02 10:36:02,252 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 871 transitions. Word has length 76 [2024-12-02 10:36:02,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:02,252 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 871 transitions. [2024-12-02 10:36:02,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 10:36:02,253 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 871 transitions. [2024-12-02 10:36:02,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-02 10:36:02,256 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:02,256 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:02,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:36:02,256 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:02,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:02,256 INFO L85 PathProgramCache]: Analyzing trace with hash -823890780, now seen corresponding path program 1 times [2024-12-02 10:36:02,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:02,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901491667] [2024-12-02 10:36:02,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:02,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:02,422 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 10:36:02,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:02,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901491667] [2024-12-02 10:36:02,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901491667] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:02,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:02,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:36:02,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624581336] [2024-12-02 10:36:02,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:02,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:36:02,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:02,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:36:02,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:36:02,424 INFO L87 Difference]: Start difference. First operand 517 states and 871 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 10:36:02,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:02,490 INFO L93 Difference]: Finished difference Result 1016 states and 1720 transitions. [2024-12-02 10:36:02,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:36:02,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 77 [2024-12-02 10:36:02,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:02,495 INFO L225 Difference]: With dead ends: 1016 [2024-12-02 10:36:02,495 INFO L226 Difference]: Without dead ends: 517 [2024-12-02 10:36:02,497 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 10:36:02,498 INFO L435 NwaCegarLoop]: 861 mSDtfsCounter, 3 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2579 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 10:36:02,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2579 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:02,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-12-02 10:36:02,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2024-12-02 10:36:02,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 411 states have (on average 1.710462287104623) internal successors, (703), 430 states have internal predecessors, (703), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 10:36:02,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 870 transitions. [2024-12-02 10:36:02,523 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 870 transitions. Word has length 77 [2024-12-02 10:36:02,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:02,523 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 870 transitions. [2024-12-02 10:36:02,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 10:36:02,524 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 870 transitions. [2024-12-02 10:36:02,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-02 10:36:02,527 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:02,527 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:02,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:36:02,527 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:02,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:02,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1721130534, now seen corresponding path program 1 times [2024-12-02 10:36:02,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:02,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715443171] [2024-12-02 10:36:02,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:02,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:02,678 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 10:36:02,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:02,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715443171] [2024-12-02 10:36:02,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715443171] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:02,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:02,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:36:02,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418635144] [2024-12-02 10:36:02,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:02,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:36:02,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:02,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:36:02,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:36:02,681 INFO L87 Difference]: Start difference. First operand 517 states and 870 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 10:36:02,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:02,728 INFO L93 Difference]: Finished difference Result 1016 states and 1719 transitions. [2024-12-02 10:36:02,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:36:02,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 78 [2024-12-02 10:36:02,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:02,733 INFO L225 Difference]: With dead ends: 1016 [2024-12-02 10:36:02,733 INFO L226 Difference]: Without dead ends: 517 [2024-12-02 10:36:02,735 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 10:36:02,736 INFO L435 NwaCegarLoop]: 861 mSDtfsCounter, 2 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2579 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 10:36:02,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2579 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:02,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-12-02 10:36:02,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2024-12-02 10:36:02,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 411 states have (on average 1.7080291970802919) internal successors, (702), 430 states have internal predecessors, (702), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 10:36:02,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 869 transitions. [2024-12-02 10:36:02,759 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 869 transitions. Word has length 78 [2024-12-02 10:36:02,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:02,759 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 869 transitions. [2024-12-02 10:36:02,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 10:36:02,760 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 869 transitions. [2024-12-02 10:36:02,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 10:36:02,763 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:02,763 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:02,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:36:02,764 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:02,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:02,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1822380568, now seen corresponding path program 1 times [2024-12-02 10:36:02,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:02,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068776054] [2024-12-02 10:36:02,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:02,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:02,913 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 10:36:02,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:02,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068776054] [2024-12-02 10:36:02,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068776054] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:02,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:02,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:36:02,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249576315] [2024-12-02 10:36:02,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:02,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:36:02,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:02,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:36:02,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:36:02,915 INFO L87 Difference]: Start difference. First operand 517 states and 869 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 10:36:02,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:02,967 INFO L93 Difference]: Finished difference Result 1016 states and 1718 transitions. [2024-12-02 10:36:02,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:36:02,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 79 [2024-12-02 10:36:02,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:02,974 INFO L225 Difference]: With dead ends: 1016 [2024-12-02 10:36:02,974 INFO L226 Difference]: Without dead ends: 517 [2024-12-02 10:36:02,976 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 10:36:02,977 INFO L435 NwaCegarLoop]: 861 mSDtfsCounter, 1 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2579 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 10:36:02,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2579 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:02,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-12-02 10:36:02,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2024-12-02 10:36:02,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 411 states have (on average 1.705596107055961) internal successors, (701), 430 states have internal predecessors, (701), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 10:36:03,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 868 transitions. [2024-12-02 10:36:03,003 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 868 transitions. Word has length 79 [2024-12-02 10:36:03,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:03,003 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 868 transitions. [2024-12-02 10:36:03,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 10:36:03,003 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 868 transitions. [2024-12-02 10:36:03,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 10:36:03,006 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:03,006 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:03,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 10:36:03,007 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:03,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:03,007 INFO L85 PathProgramCache]: Analyzing trace with hash -836868246, now seen corresponding path program 1 times [2024-12-02 10:36:03,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:03,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772343131] [2024-12-02 10:36:03,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:03,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:03,209 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 10:36:03,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:03,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772343131] [2024-12-02 10:36:03,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772343131] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:03,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:03,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:36:03,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345605205] [2024-12-02 10:36:03,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:03,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:36:03,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:03,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:36:03,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:36:03,212 INFO L87 Difference]: Start difference. First operand 517 states and 868 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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 10:36:03,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:03,329 INFO L93 Difference]: Finished difference Result 982 states and 1650 transitions. [2024-12-02 10:36:03,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:36:03,330 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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 80 [2024-12-02 10:36:03,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:03,335 INFO L225 Difference]: With dead ends: 982 [2024-12-02 10:36:03,335 INFO L226 Difference]: Without dead ends: 532 [2024-12-02 10:36:03,338 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 10:36:03,338 INFO L435 NwaCegarLoop]: 858 mSDtfsCounter, 91 mSDsluCounter, 4209 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5067 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:03,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5067 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:36:03,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-12-02 10:36:03,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 530. [2024-12-02 10:36:03,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 421 states have (on average 1.700712589073634) internal successors, (716), 442 states have internal predecessors, (716), 87 states have call successors, (87), 20 states have call predecessors, (87), 21 states have return successors, (84), 80 states have call predecessors, (84), 82 states have call successors, (84) [2024-12-02 10:36:03,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 887 transitions. [2024-12-02 10:36:03,368 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 887 transitions. Word has length 80 [2024-12-02 10:36:03,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:03,368 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 887 transitions. [2024-12-02 10:36:03,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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 10:36:03,368 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 887 transitions. [2024-12-02 10:36:03,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 10:36:03,371 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:03,372 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:03,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:36:03,372 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:03,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:03,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1045566549, now seen corresponding path program 1 times [2024-12-02 10:36:03,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:03,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658182448] [2024-12-02 10:36:03,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:03,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:03,496 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 10:36:03,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:03,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658182448] [2024-12-02 10:36:03,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658182448] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:03,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:03,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:36:03,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664521990] [2024-12-02 10:36:03,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:03,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:36:03,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:03,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:36:03,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:36:03,497 INFO L87 Difference]: Start difference. First operand 530 states and 887 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 10:36:03,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:03,542 INFO L93 Difference]: Finished difference Result 1034 states and 1744 transitions. [2024-12-02 10:36:03,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:36:03,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 80 [2024-12-02 10:36:03,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:03,547 INFO L225 Difference]: With dead ends: 1034 [2024-12-02 10:36:03,547 INFO L226 Difference]: Without dead ends: 511 [2024-12-02 10:36:03,550 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 10:36:03,550 INFO L435 NwaCegarLoop]: 862 mSDtfsCounter, 0 mSDsluCounter, 1719 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2581 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 10:36:03,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2581 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:03,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-12-02 10:36:03,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 511. [2024-12-02 10:36:03,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 405 states have (on average 1.6962962962962962) internal successors, (687), 424 states have internal predecessors, (687), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 10:36:03,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 854 transitions. [2024-12-02 10:36:03,573 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 854 transitions. Word has length 80 [2024-12-02 10:36:03,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:03,573 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 854 transitions. [2024-12-02 10:36:03,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 10:36:03,574 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 854 transitions. [2024-12-02 10:36:03,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 10:36:03,576 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:03,577 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:03,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 10:36:03,577 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:03,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:03,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1387022022, now seen corresponding path program 1 times [2024-12-02 10:36:03,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:03,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189140516] [2024-12-02 10:36:03,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:03,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:03,733 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 10:36:03,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:03,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189140516] [2024-12-02 10:36:03,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189140516] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:03,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:03,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:36:03,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419302275] [2024-12-02 10:36:03,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:03,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:36:03,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:03,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:36:03,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:36:03,735 INFO L87 Difference]: Start difference. First operand 511 states and 854 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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 10:36:03,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:03,964 INFO L93 Difference]: Finished difference Result 979 states and 1642 transitions. [2024-12-02 10:36:03,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:36:03,965 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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 81 [2024-12-02 10:36:03,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:03,971 INFO L225 Difference]: With dead ends: 979 [2024-12-02 10:36:03,971 INFO L226 Difference]: Without dead ends: 520 [2024-12-02 10:36:03,974 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 10:36:03,974 INFO L435 NwaCegarLoop]: 811 mSDtfsCounter, 55 mSDsluCounter, 3215 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4026 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 10:36:03,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4026 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:36:03,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-12-02 10:36:03,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 511. [2024-12-02 10:36:03,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 405 states have (on average 1.6864197530864198) internal successors, (683), 424 states have internal predecessors, (683), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 10:36:03,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 850 transitions. [2024-12-02 10:36:04,000 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 850 transitions. Word has length 81 [2024-12-02 10:36:04,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:04,000 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 850 transitions. [2024-12-02 10:36:04,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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 10:36:04,001 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 850 transitions. [2024-12-02 10:36:04,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 10:36:04,004 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:04,004 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:04,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 10:36:04,004 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:04,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:04,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1368596697, now seen corresponding path program 1 times [2024-12-02 10:36:04,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:04,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314259356] [2024-12-02 10:36:04,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:04,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:04,166 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 10:36:04,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:04,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314259356] [2024-12-02 10:36:04,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314259356] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:04,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:04,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:36:04,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892501379] [2024-12-02 10:36:04,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:04,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:36:04,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:04,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:36:04,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:36:04,168 INFO L87 Difference]: Start difference. First operand 511 states and 850 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 10:36:04,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:04,371 INFO L93 Difference]: Finished difference Result 979 states and 1638 transitions. [2024-12-02 10:36:04,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:36:04,372 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 82 [2024-12-02 10:36:04,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:04,377 INFO L225 Difference]: With dead ends: 979 [2024-12-02 10:36:04,377 INFO L226 Difference]: Without dead ends: 520 [2024-12-02 10:36:04,379 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 10:36:04,380 INFO L435 NwaCegarLoop]: 811 mSDtfsCounter, 54 mSDsluCounter, 3215 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4026 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 10:36:04,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4026 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:36:04,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-12-02 10:36:04,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 511. [2024-12-02 10:36:04,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 405 states have (on average 1.6765432098765432) internal successors, (679), 424 states have internal predecessors, (679), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 10:36:04,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 846 transitions. [2024-12-02 10:36:04,404 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 846 transitions. Word has length 82 [2024-12-02 10:36:04,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:04,404 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 846 transitions. [2024-12-02 10:36:04,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 10:36:04,404 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 846 transitions. [2024-12-02 10:36:04,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 10:36:04,407 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:04,408 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:04,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 10:36:04,408 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:04,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:04,408 INFO L85 PathProgramCache]: Analyzing trace with hash -791744191, now seen corresponding path program 1 times [2024-12-02 10:36:04,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:04,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432482750] [2024-12-02 10:36:04,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:04,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:04,564 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 10:36:04,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:04,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432482750] [2024-12-02 10:36:04,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432482750] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:04,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:04,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:36:04,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503119227] [2024-12-02 10:36:04,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:04,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:36:04,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:04,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:36:04,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:36:04,565 INFO L87 Difference]: Start difference. First operand 511 states and 846 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 10:36:04,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:04,736 INFO L93 Difference]: Finished difference Result 979 states and 1634 transitions. [2024-12-02 10:36:04,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:36:04,736 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 83 [2024-12-02 10:36:04,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:04,741 INFO L225 Difference]: With dead ends: 979 [2024-12-02 10:36:04,741 INFO L226 Difference]: Without dead ends: 520 [2024-12-02 10:36:04,743 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 10:36:04,744 INFO L435 NwaCegarLoop]: 810 mSDtfsCounter, 53 mSDsluCounter, 3198 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4008 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 10:36:04,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4008 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:36:04,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-12-02 10:36:04,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 511. [2024-12-02 10:36:04,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 405 states have (on average 1.6666666666666667) internal successors, (675), 424 states have internal predecessors, (675), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 10:36:04,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 842 transitions. [2024-12-02 10:36:04,765 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 842 transitions. Word has length 83 [2024-12-02 10:36:04,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:04,766 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 842 transitions. [2024-12-02 10:36:04,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 10:36:04,766 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 842 transitions. [2024-12-02 10:36:04,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 10:36:04,768 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:04,768 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:04,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 10:36:04,769 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:04,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:04,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1063459647, now seen corresponding path program 1 times [2024-12-02 10:36:04,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:04,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522980993] [2024-12-02 10:36:04,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:04,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:04,936 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 10:36:04,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:04,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522980993] [2024-12-02 10:36:04,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522980993] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:04,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:04,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:36:04,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003266790] [2024-12-02 10:36:04,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:04,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:36:04,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:04,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:36:04,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:36:04,937 INFO L87 Difference]: Start difference. First operand 511 states and 842 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 10:36:05,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:05,014 INFO L93 Difference]: Finished difference Result 970 states and 1616 transitions. [2024-12-02 10:36:05,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:36:05,016 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 83 [2024-12-02 10:36:05,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:05,021 INFO L225 Difference]: With dead ends: 970 [2024-12-02 10:36:05,021 INFO L226 Difference]: Without dead ends: 490 [2024-12-02 10:36:05,024 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 10:36:05,024 INFO L435 NwaCegarLoop]: 831 mSDtfsCounter, 84 mSDsluCounter, 4082 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 4913 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 10:36:05,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 4913 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:05,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-12-02 10:36:05,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2024-12-02 10:36:05,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 384 states have (on average 1.6692708333333333) internal successors, (641), 403 states have internal predecessors, (641), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 10:36:05,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 808 transitions. [2024-12-02 10:36:05,061 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 808 transitions. Word has length 83 [2024-12-02 10:36:05,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:05,061 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 808 transitions. [2024-12-02 10:36:05,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 10:36:05,062 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 808 transitions. [2024-12-02 10:36:05,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 10:36:05,064 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:05,064 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:05,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 10:36:05,064 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:05,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:05,065 INFO L85 PathProgramCache]: Analyzing trace with hash 12501186, now seen corresponding path program 1 times [2024-12-02 10:36:05,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:05,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465052216] [2024-12-02 10:36:05,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:05,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:05,256 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 10:36:05,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:05,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465052216] [2024-12-02 10:36:05,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465052216] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:05,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:05,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:36:05,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686232434] [2024-12-02 10:36:05,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:05,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:36:05,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:05,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:36:05,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:36:05,258 INFO L87 Difference]: Start difference. First operand 490 states and 808 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 10:36:05,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:05,356 INFO L93 Difference]: Finished difference Result 949 states and 1582 transitions. [2024-12-02 10:36:05,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:36:05,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 84 [2024-12-02 10:36:05,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:05,363 INFO L225 Difference]: With dead ends: 949 [2024-12-02 10:36:05,363 INFO L226 Difference]: Without dead ends: 490 [2024-12-02 10:36:05,366 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 10:36:05,367 INFO L435 NwaCegarLoop]: 791 mSDtfsCounter, 17 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 3946 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 10:36:05,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 3946 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:05,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-12-02 10:36:05,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2024-12-02 10:36:05,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 384 states have (on average 1.6666666666666667) internal successors, (640), 403 states have internal predecessors, (640), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 10:36:05,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 807 transitions. [2024-12-02 10:36:05,392 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 807 transitions. Word has length 84 [2024-12-02 10:36:05,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:05,392 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 807 transitions. [2024-12-02 10:36:05,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 10:36:05,392 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 807 transitions. [2024-12-02 10:36:05,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 10:36:05,395 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:05,395 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:05,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 10:36:05,395 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:05,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:05,396 INFO L85 PathProgramCache]: Analyzing trace with hash -724009028, now seen corresponding path program 1 times [2024-12-02 10:36:05,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:05,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791633053] [2024-12-02 10:36:05,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:05,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:05,534 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 10:36:05,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:05,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791633053] [2024-12-02 10:36:05,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791633053] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:05,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:05,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:36:05,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699196867] [2024-12-02 10:36:05,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:05,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:36:05,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:05,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:36:05,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:36:05,535 INFO L87 Difference]: Start difference. First operand 490 states and 807 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 10:36:05,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:05,617 INFO L93 Difference]: Finished difference Result 949 states and 1581 transitions. [2024-12-02 10:36:05,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:36:05,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 85 [2024-12-02 10:36:05,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:05,622 INFO L225 Difference]: With dead ends: 949 [2024-12-02 10:36:05,622 INFO L226 Difference]: Without dead ends: 490 [2024-12-02 10:36:05,625 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 10:36:05,626 INFO L435 NwaCegarLoop]: 791 mSDtfsCounter, 16 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 3946 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 10:36:05,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 3946 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:05,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-12-02 10:36:05,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2024-12-02 10:36:05,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 384 states have (on average 1.6640625) internal successors, (639), 403 states have internal predecessors, (639), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 10:36:05,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 806 transitions. [2024-12-02 10:36:05,650 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 806 transitions. Word has length 85 [2024-12-02 10:36:05,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:05,650 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 806 transitions. [2024-12-02 10:36:05,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 10:36:05,650 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 806 transitions. [2024-12-02 10:36:05,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 10:36:05,653 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:05,653 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:05,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 10:36:05,654 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:05,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:05,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1979302307, now seen corresponding path program 1 times [2024-12-02 10:36:05,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:05,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824622833] [2024-12-02 10:36:05,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:05,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:05,757 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 10:36:05,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:05,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824622833] [2024-12-02 10:36:05,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824622833] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:05,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:05,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:36:05,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537961004] [2024-12-02 10:36:05,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:05,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:36:05,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:05,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:36:05,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:36:05,758 INFO L87 Difference]: Start difference. First operand 490 states and 806 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:36:05,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:05,801 INFO L93 Difference]: Finished difference Result 943 states and 1569 transitions. [2024-12-02 10:36:05,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:36:05,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 86 [2024-12-02 10:36:05,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:05,806 INFO L225 Difference]: With dead ends: 943 [2024-12-02 10:36:05,806 INFO L226 Difference]: Without dead ends: 490 [2024-12-02 10:36:05,808 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 10:36:05,809 INFO L435 NwaCegarLoop]: 794 mSDtfsCounter, 5 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:05,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2372 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:05,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-12-02 10:36:05,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2024-12-02 10:36:05,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 384 states have (on average 1.6614583333333333) internal successors, (638), 403 states have internal predecessors, (638), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 10:36:05,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 805 transitions. [2024-12-02 10:36:05,845 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 805 transitions. Word has length 86 [2024-12-02 10:36:05,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:05,845 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 805 transitions. [2024-12-02 10:36:05,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:36:05,845 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 805 transitions. [2024-12-02 10:36:05,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 10:36:05,848 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:05,848 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:05,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 10:36:05,849 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:05,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:05,849 INFO L85 PathProgramCache]: Analyzing trace with hash 201236327, now seen corresponding path program 1 times [2024-12-02 10:36:05,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:05,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896586620] [2024-12-02 10:36:05,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:05,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:06,128 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 10:36:06,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:06,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896586620] [2024-12-02 10:36:06,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896586620] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:06,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:06,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:36:06,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975986440] [2024-12-02 10:36:06,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:06,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:36:06,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:06,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:36:06,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:36:06,130 INFO L87 Difference]: Start difference. First operand 490 states and 805 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 10:36:07,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:07,830 INFO L93 Difference]: Finished difference Result 939 states and 1581 transitions. [2024-12-02 10:36:07,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:36:07,830 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2024-12-02 10:36:07,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:07,834 INFO L225 Difference]: With dead ends: 939 [2024-12-02 10:36:07,834 INFO L226 Difference]: Without dead ends: 494 [2024-12-02 10:36:07,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:36:07,837 INFO L435 NwaCegarLoop]: 375 mSDtfsCounter, 1242 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 2454 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1242 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 2808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 2454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:07,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1242 Valid, 1589 Invalid, 2808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 2454 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 10:36:07,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-12-02 10:36:07,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2024-12-02 10:36:07,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 387 states have (on average 1.6563307493540051) internal successors, (641), 406 states have internal predecessors, (641), 86 states have call successors, (86), 20 states have call predecessors, (86), 20 states have return successors, (97), 80 states have call predecessors, (97), 81 states have call successors, (97) [2024-12-02 10:36:07,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 824 transitions. [2024-12-02 10:36:07,858 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 824 transitions. Word has length 87 [2024-12-02 10:36:07,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:07,859 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 824 transitions. [2024-12-02 10:36:07,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 10:36:07,859 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 824 transitions. [2024-12-02 10:36:07,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-12-02 10:36:07,861 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:07,861 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:07,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 10:36:07,862 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:07,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:07,862 INFO L85 PathProgramCache]: Analyzing trace with hash -844213630, now seen corresponding path program 1 times [2024-12-02 10:36:07,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:07,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403219489] [2024-12-02 10:36:07,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:07,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:07,999 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 10:36:07,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:07,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403219489] [2024-12-02 10:36:07,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403219489] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:07,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:07,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:36:07,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031746697] [2024-12-02 10:36:07,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:07,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:36:08,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:08,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:36:08,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:36:08,000 INFO L87 Difference]: Start difference. First operand 494 states and 824 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 10:36:11,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:11,211 INFO L93 Difference]: Finished difference Result 1763 states and 3038 transitions. [2024-12-02 10:36:11,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 10:36:11,211 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 88 [2024-12-02 10:36:11,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:11,224 INFO L225 Difference]: With dead ends: 1763 [2024-12-02 10:36:11,224 INFO L226 Difference]: Without dead ends: 1314 [2024-12-02 10:36:11,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-12-02 10:36:11,229 INFO L435 NwaCegarLoop]: 603 mSDtfsCounter, 2235 mSDsluCounter, 1977 mSDsCounter, 0 mSdLazyCounter, 4458 mSolverCounterSat, 564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2302 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 5022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 4458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:11,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2302 Valid, 2580 Invalid, 5022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 4458 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 10:36:11,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2024-12-02 10:36:11,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1257. [2024-12-02 10:36:11,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 982 states have (on average 1.6710794297352343) internal successors, (1641), 1030 states have internal predecessors, (1641), 223 states have call successors, (223), 51 states have call predecessors, (223), 51 states have return successors, (238), 212 states have call predecessors, (238), 218 states have call successors, (238) [2024-12-02 10:36:11,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2102 transitions. [2024-12-02 10:36:11,315 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2102 transitions. Word has length 88 [2024-12-02 10:36:11,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:11,315 INFO L471 AbstractCegarLoop]: Abstraction has 1257 states and 2102 transitions. [2024-12-02 10:36:11,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 10:36:11,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2102 transitions. [2024-12-02 10:36:11,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 10:36:11,318 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:11,318 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:11,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 10:36:11,318 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:11,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:11,318 INFO L85 PathProgramCache]: Analyzing trace with hash -996602143, now seen corresponding path program 1 times [2024-12-02 10:36:11,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:11,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992315869] [2024-12-02 10:36:11,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:11,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:11,562 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 10:36:11,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:11,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992315869] [2024-12-02 10:36:11,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992315869] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:11,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:11,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:36:11,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903834005] [2024-12-02 10:36:11,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:11,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:36:11,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:11,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:36:11,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:36:11,564 INFO L87 Difference]: Start difference. First operand 1257 states and 2102 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 10:36:14,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:14,604 INFO L93 Difference]: Finished difference Result 5960 states and 10289 transitions. [2024-12-02 10:36:14,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:36:14,605 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 90 [2024-12-02 10:36:14,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:14,642 INFO L225 Difference]: With dead ends: 5960 [2024-12-02 10:36:14,642 INFO L226 Difference]: Without dead ends: 4748 [2024-12-02 10:36:14,651 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:36:14,652 INFO L435 NwaCegarLoop]: 800 mSDtfsCounter, 3000 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 5070 mSolverCounterSat, 791 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3129 SdHoareTripleChecker+Valid, 2831 SdHoareTripleChecker+Invalid, 5861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 791 IncrementalHoareTripleChecker+Valid, 5070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:14,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3129 Valid, 2831 Invalid, 5861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [791 Valid, 5070 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-12-02 10:36:14,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4748 states. [2024-12-02 10:36:14,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4748 to 4333. [2024-12-02 10:36:14,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4333 states, 3192 states have (on average 1.6657268170426065) internal successors, (5317), 3415 states have internal predecessors, (5317), 986 states have call successors, (986), 137 states have call predecessors, (986), 154 states have return successors, (1186), 965 states have call predecessors, (1186), 981 states have call successors, (1186) [2024-12-02 10:36:15,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4333 states to 4333 states and 7489 transitions. [2024-12-02 10:36:15,018 INFO L78 Accepts]: Start accepts. Automaton has 4333 states and 7489 transitions. Word has length 90 [2024-12-02 10:36:15,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:15,019 INFO L471 AbstractCegarLoop]: Abstraction has 4333 states and 7489 transitions. [2024-12-02 10:36:15,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 10:36:15,019 INFO L276 IsEmpty]: Start isEmpty. Operand 4333 states and 7489 transitions. [2024-12-02 10:36:15,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 10:36:15,021 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:15,021 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:15,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 10:36:15,022 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:15,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:15,022 INFO L85 PathProgramCache]: Analyzing trace with hash -2025961441, now seen corresponding path program 1 times [2024-12-02 10:36:15,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:15,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949634849] [2024-12-02 10:36:15,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:15,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:15,198 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 10:36:15,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:15,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949634849] [2024-12-02 10:36:15,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949634849] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:15,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:15,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:36:15,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514314418] [2024-12-02 10:36:15,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:15,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:36:15,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:15,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:36:15,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:15,200 INFO L87 Difference]: Start difference. First operand 4333 states and 7489 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 10:36:16,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:16,621 INFO L93 Difference]: Finished difference Result 9847 states and 16989 transitions. [2024-12-02 10:36:16,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:36:16,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 90 [2024-12-02 10:36:16,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:16,655 INFO L225 Difference]: With dead ends: 9847 [2024-12-02 10:36:16,655 INFO L226 Difference]: Without dead ends: 6768 [2024-12-02 10:36:16,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 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 10:36:16,668 INFO L435 NwaCegarLoop]: 451 mSDtfsCounter, 1644 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1717 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1710 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 2086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 1717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:16,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1710 Valid, 1182 Invalid, 2086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 1717 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 10:36:16,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6768 states. [2024-12-02 10:36:17,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6768 to 5064. [2024-12-02 10:36:17,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5064 states, 3723 states have (on average 1.6269137792103143) internal successors, (6057), 3963 states have internal predecessors, (6057), 1147 states have call successors, (1147), 173 states have call predecessors, (1147), 193 states have return successors, (1400), 1109 states have call predecessors, (1400), 1142 states have call successors, (1400) [2024-12-02 10:36:17,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5064 states to 5064 states and 8604 transitions. [2024-12-02 10:36:17,116 INFO L78 Accepts]: Start accepts. Automaton has 5064 states and 8604 transitions. Word has length 90 [2024-12-02 10:36:17,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:17,116 INFO L471 AbstractCegarLoop]: Abstraction has 5064 states and 8604 transitions. [2024-12-02 10:36:17,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 10:36:17,116 INFO L276 IsEmpty]: Start isEmpty. Operand 5064 states and 8604 transitions. [2024-12-02 10:36:17,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 10:36:17,119 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:17,119 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:17,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 10:36:17,119 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:17,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:17,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1181955939, now seen corresponding path program 1 times [2024-12-02 10:36:17,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:17,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392939986] [2024-12-02 10:36:17,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:17,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:17,308 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 10:36:17,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:17,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392939986] [2024-12-02 10:36:17,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392939986] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:17,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:17,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:36:17,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112135120] [2024-12-02 10:36:17,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:17,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:36:17,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:17,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:36:17,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:36:17,310 INFO L87 Difference]: Start difference. First operand 5064 states and 8604 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 10:36:19,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:19,843 INFO L93 Difference]: Finished difference Result 14118 states and 24264 transitions. [2024-12-02 10:36:19,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:36:19,844 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 90 [2024-12-02 10:36:19,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:19,922 INFO L225 Difference]: With dead ends: 14118 [2024-12-02 10:36:19,922 INFO L226 Difference]: Without dead ends: 10325 [2024-12-02 10:36:19,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:36:19,947 INFO L435 NwaCegarLoop]: 347 mSDtfsCounter, 2284 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 3437 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 3911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 3437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:19,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2361 Valid, 1700 Invalid, 3911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 3437 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 10:36:19,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10325 states. [2024-12-02 10:36:20,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10325 to 9904. [2024-12-02 10:36:20,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9904 states, 7348 states have (on average 1.625748502994012) internal successors, (11946), 7813 states have internal predecessors, (11946), 2121 states have call successors, (2121), 334 states have call predecessors, (2121), 434 states have return successors, (2843), 2052 states have call predecessors, (2843), 2116 states have call successors, (2843) [2024-12-02 10:36:20,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9904 states to 9904 states and 16910 transitions. [2024-12-02 10:36:20,624 INFO L78 Accepts]: Start accepts. Automaton has 9904 states and 16910 transitions. Word has length 90 [2024-12-02 10:36:20,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:20,624 INFO L471 AbstractCegarLoop]: Abstraction has 9904 states and 16910 transitions. [2024-12-02 10:36:20,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 10:36:20,624 INFO L276 IsEmpty]: Start isEmpty. Operand 9904 states and 16910 transitions. [2024-12-02 10:36:20,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 10:36:20,627 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:20,627 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:20,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 10:36:20,627 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:20,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:20,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1788106822, now seen corresponding path program 1 times [2024-12-02 10:36:20,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:20,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662770270] [2024-12-02 10:36:20,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:20,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:20,759 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 10:36:20,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:20,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662770270] [2024-12-02 10:36:20,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662770270] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:20,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:20,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:36:20,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041426638] [2024-12-02 10:36:20,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:20,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:36:20,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:20,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:36:20,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:20,761 INFO L87 Difference]: Start difference. First operand 9904 states and 16910 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 10:36:21,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:21,431 INFO L93 Difference]: Finished difference Result 18534 states and 31727 transitions. [2024-12-02 10:36:21,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:36:21,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 95 [2024-12-02 10:36:21,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:21,495 INFO L225 Difference]: With dead ends: 18534 [2024-12-02 10:36:21,495 INFO L226 Difference]: Without dead ends: 10066 [2024-12-02 10:36:21,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:21,535 INFO L435 NwaCegarLoop]: 803 mSDtfsCounter, 0 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3182 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:21,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3182 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:21,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10066 states. [2024-12-02 10:36:22,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10066 to 10038. [2024-12-02 10:36:22,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10038 states, 7451 states have (on average 1.6162931150181183) internal successors, (12043), 7914 states have internal predecessors, (12043), 2115 states have call successors, (2115), 334 states have call predecessors, (2115), 471 states have return successors, (2963), 2085 states have call predecessors, (2963), 2110 states have call successors, (2963) [2024-12-02 10:36:22,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10038 states to 10038 states and 17121 transitions. [2024-12-02 10:36:22,382 INFO L78 Accepts]: Start accepts. Automaton has 10038 states and 17121 transitions. Word has length 95 [2024-12-02 10:36:22,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:22,382 INFO L471 AbstractCegarLoop]: Abstraction has 10038 states and 17121 transitions. [2024-12-02 10:36:22,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 10:36:22,382 INFO L276 IsEmpty]: Start isEmpty. Operand 10038 states and 17121 transitions. [2024-12-02 10:36:22,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 10:36:22,385 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:22,385 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:22,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 10:36:22,385 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:22,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:22,386 INFO L85 PathProgramCache]: Analyzing trace with hash 905698009, now seen corresponding path program 1 times [2024-12-02 10:36:22,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:22,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910889700] [2024-12-02 10:36:22,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:22,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:22,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:22,615 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 10:36:22,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:22,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910889700] [2024-12-02 10:36:22,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910889700] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:22,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:22,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:36:22,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366005978] [2024-12-02 10:36:22,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:22,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:36:22,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:22,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:36:22,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:36:22,617 INFO L87 Difference]: Start difference. First operand 10038 states and 17121 transitions. Second operand has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (10), 2 states have call predecessors, (10), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-12-02 10:36:23,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:23,586 INFO L93 Difference]: Finished difference Result 20725 states and 36268 transitions. [2024-12-02 10:36:23,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:36:23,587 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (10), 2 states have call predecessors, (10), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 102 [2024-12-02 10:36:23,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:23,655 INFO L225 Difference]: With dead ends: 20725 [2024-12-02 10:36:23,656 INFO L226 Difference]: Without dead ends: 10322 [2024-12-02 10:36:23,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:36:23,695 INFO L435 NwaCegarLoop]: 842 mSDtfsCounter, 243 mSDsluCounter, 5609 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 6451 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:23,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 6451 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:36:23,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10322 states. [2024-12-02 10:36:24,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10322 to 10086. [2024-12-02 10:36:24,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10086 states, 7493 states have (on average 1.5824102495662618) internal successors, (11857), 7962 states have internal predecessors, (11857), 2115 states have call successors, (2115), 334 states have call predecessors, (2115), 477 states have return successors, (2987), 2085 states have call predecessors, (2987), 2110 states have call successors, (2987) [2024-12-02 10:36:24,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10086 states to 10086 states and 16959 transitions. [2024-12-02 10:36:24,272 INFO L78 Accepts]: Start accepts. Automaton has 10086 states and 16959 transitions. Word has length 102 [2024-12-02 10:36:24,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:24,272 INFO L471 AbstractCegarLoop]: Abstraction has 10086 states and 16959 transitions. [2024-12-02 10:36:24,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (10), 2 states have call predecessors, (10), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-12-02 10:36:24,272 INFO L276 IsEmpty]: Start isEmpty. Operand 10086 states and 16959 transitions. [2024-12-02 10:36:24,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 10:36:24,274 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:24,274 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:24,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 10:36:24,274 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:24,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:24,275 INFO L85 PathProgramCache]: Analyzing trace with hash 214026347, now seen corresponding path program 1 times [2024-12-02 10:36:24,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:24,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122751674] [2024-12-02 10:36:24,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:24,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:24,403 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 10:36:24,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:24,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122751674] [2024-12-02 10:36:24,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122751674] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:24,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:24,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:36:24,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275673238] [2024-12-02 10:36:24,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:24,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:36:24,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:24,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:36:24,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:36:24,405 INFO L87 Difference]: Start difference. First operand 10086 states and 16959 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 10:36:27,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:27,209 INFO L93 Difference]: Finished difference Result 19867 states and 33480 transitions. [2024-12-02 10:36:27,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 10:36:27,210 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 107 [2024-12-02 10:36:27,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:27,291 INFO L225 Difference]: With dead ends: 19867 [2024-12-02 10:36:27,291 INFO L226 Difference]: Without dead ends: 11233 [2024-12-02 10:36:27,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:36:27,338 INFO L435 NwaCegarLoop]: 367 mSDtfsCounter, 2011 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 2928 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2085 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 3379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 2928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:27,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2085 Valid, 1634 Invalid, 3379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 2928 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 10:36:27,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11233 states. [2024-12-02 10:36:27,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11233 to 10612. [2024-12-02 10:36:27,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10612 states, 7887 states have (on average 1.5680233295296058) internal successors, (12367), 8392 states have internal predecessors, (12367), 2165 states have call successors, (2165), 386 states have call predecessors, (2165), 559 states have return successors, (3178), 2129 states have call predecessors, (3178), 2160 states have call successors, (3178) [2024-12-02 10:36:28,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10612 states to 10612 states and 17710 transitions. [2024-12-02 10:36:28,023 INFO L78 Accepts]: Start accepts. Automaton has 10612 states and 17710 transitions. Word has length 107 [2024-12-02 10:36:28,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:28,023 INFO L471 AbstractCegarLoop]: Abstraction has 10612 states and 17710 transitions. [2024-12-02 10:36:28,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 10:36:28,023 INFO L276 IsEmpty]: Start isEmpty. Operand 10612 states and 17710 transitions. [2024-12-02 10:36:28,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 10:36:28,025 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:28,025 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:28,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 10:36:28,025 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:28,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:28,026 INFO L85 PathProgramCache]: Analyzing trace with hash -669902907, now seen corresponding path program 1 times [2024-12-02 10:36:28,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:28,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106324759] [2024-12-02 10:36:28,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:28,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:28,250 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 10:36:28,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:28,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106324759] [2024-12-02 10:36:28,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106324759] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:28,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:28,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 10:36:28,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010034013] [2024-12-02 10:36:28,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:28,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:36:28,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:28,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:36:28,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:36:28,251 INFO L87 Difference]: Start difference. First operand 10612 states and 17710 transitions. Second operand has 13 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 11 states have internal predecessors, (85), 7 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-12-02 10:36:32,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:32,003 INFO L93 Difference]: Finished difference Result 24042 states and 39759 transitions. [2024-12-02 10:36:32,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 10:36:32,004 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 11 states have internal predecessors, (85), 7 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 114 [2024-12-02 10:36:32,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:32,069 INFO L225 Difference]: With dead ends: 24042 [2024-12-02 10:36:32,069 INFO L226 Difference]: Without dead ends: 14683 [2024-12-02 10:36:32,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2024-12-02 10:36:32,102 INFO L435 NwaCegarLoop]: 387 mSDtfsCounter, 2177 mSDsluCounter, 3576 mSDsCounter, 0 mSdLazyCounter, 7757 mSolverCounterSat, 461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2260 SdHoareTripleChecker+Valid, 3963 SdHoareTripleChecker+Invalid, 8218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 7757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:32,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2260 Valid, 3963 Invalid, 8218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 7757 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 10:36:32,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14683 states. [2024-12-02 10:36:32,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14683 to 13666. [2024-12-02 10:36:32,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13666 states, 10303 states have (on average 1.5476074929632146) internal successors, (15945), 10926 states have internal predecessors, (15945), 2551 states have call successors, (2551), 562 states have call predecessors, (2551), 811 states have return successors, (3744), 2473 states have call predecessors, (3744), 2546 states have call successors, (3744) [2024-12-02 10:36:32,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13666 states to 13666 states and 22240 transitions. [2024-12-02 10:36:32,815 INFO L78 Accepts]: Start accepts. Automaton has 13666 states and 22240 transitions. Word has length 114 [2024-12-02 10:36:32,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:32,815 INFO L471 AbstractCegarLoop]: Abstraction has 13666 states and 22240 transitions. [2024-12-02 10:36:32,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 11 states have internal predecessors, (85), 7 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-12-02 10:36:32,816 INFO L276 IsEmpty]: Start isEmpty. Operand 13666 states and 22240 transitions. [2024-12-02 10:36:32,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 10:36:32,817 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:32,817 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:32,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 10:36:32,818 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:32,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:32,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1298190754, now seen corresponding path program 1 times [2024-12-02 10:36:32,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:32,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266347823] [2024-12-02 10:36:32,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:32,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:32,954 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 10:36:32,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:32,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266347823] [2024-12-02 10:36:32,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266347823] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:32,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:32,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:36:32,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60645043] [2024-12-02 10:36:32,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:32,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:36:32,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:32,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:36:32,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:36:32,955 INFO L87 Difference]: Start difference. First operand 13666 states and 22240 transitions. Second operand has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 10:36:33,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:33,859 INFO L93 Difference]: Finished difference Result 32922 states and 53801 transitions. [2024-12-02 10:36:33,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:36:33,860 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2024-12-02 10:36:33,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:33,942 INFO L225 Difference]: With dead ends: 32922 [2024-12-02 10:36:33,942 INFO L226 Difference]: Without dead ends: 20708 [2024-12-02 10:36:33,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 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 10:36:33,979 INFO L435 NwaCegarLoop]: 1294 mSDtfsCounter, 756 mSDsluCounter, 7190 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 8484 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:33,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 8484 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:36:33,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20708 states. [2024-12-02 10:36:34,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20708 to 13777. [2024-12-02 10:36:34,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13777 states, 10405 states have (on average 1.5480057664584335) internal successors, (16107), 11004 states have internal predecessors, (16107), 2581 states have call successors, (2581), 565 states have call predecessors, (2581), 790 states have return successors, (3645), 2503 states have call predecessors, (3645), 2576 states have call successors, (3645) [2024-12-02 10:36:35,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13777 states to 13777 states and 22333 transitions. [2024-12-02 10:36:35,021 INFO L78 Accepts]: Start accepts. Automaton has 13777 states and 22333 transitions. Word has length 112 [2024-12-02 10:36:35,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:35,021 INFO L471 AbstractCegarLoop]: Abstraction has 13777 states and 22333 transitions. [2024-12-02 10:36:35,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 10:36:35,021 INFO L276 IsEmpty]: Start isEmpty. Operand 13777 states and 22333 transitions. [2024-12-02 10:36:35,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 10:36:35,023 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:35,023 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:35,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 10:36:35,024 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:35,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:35,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1079336036, now seen corresponding path program 1 times [2024-12-02 10:36:35,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:35,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924496377] [2024-12-02 10:36:35,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:35,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:35,185 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 10:36:35,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:35,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924496377] [2024-12-02 10:36:35,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924496377] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:35,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:35,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:36:35,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996952782] [2024-12-02 10:36:35,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:35,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:36:35,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:35,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:36:35,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:36:35,187 INFO L87 Difference]: Start difference. First operand 13777 states and 22333 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 10:36:36,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:36,163 INFO L93 Difference]: Finished difference Result 13908 states and 22571 transitions. [2024-12-02 10:36:36,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:36:36,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2024-12-02 10:36:36,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:36,235 INFO L225 Difference]: With dead ends: 13908 [2024-12-02 10:36:36,235 INFO L226 Difference]: Without dead ends: 13893 [2024-12-02 10:36:36,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:36:36,243 INFO L435 NwaCegarLoop]: 785 mSDtfsCounter, 866 mSDsluCounter, 2034 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 2819 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:36,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 2819 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:36:36,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13893 states. [2024-12-02 10:36:36,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13893 to 13785. [2024-12-02 10:36:36,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13785 states, 10413 states have (on average 1.5475847498319408) internal successors, (16115), 11012 states have internal predecessors, (16115), 2581 states have call successors, (2581), 565 states have call predecessors, (2581), 790 states have return successors, (3645), 2503 states have call predecessors, (3645), 2576 states have call successors, (3645) [2024-12-02 10:36:36,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13785 states to 13785 states and 22341 transitions. [2024-12-02 10:36:36,877 INFO L78 Accepts]: Start accepts. Automaton has 13785 states and 22341 transitions. Word has length 112 [2024-12-02 10:36:36,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:36,878 INFO L471 AbstractCegarLoop]: Abstraction has 13785 states and 22341 transitions. [2024-12-02 10:36:36,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 10:36:36,878 INFO L276 IsEmpty]: Start isEmpty. Operand 13785 states and 22341 transitions. [2024-12-02 10:36:36,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 10:36:36,879 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:36,879 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:36,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 10:36:36,880 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:36,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:36,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1621327327, now seen corresponding path program 1 times [2024-12-02 10:36:36,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:36,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243676241] [2024-12-02 10:36:36,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:36,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:37,125 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 10:36:37,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:37,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243676241] [2024-12-02 10:36:37,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243676241] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:37,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:37,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:36:37,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918997636] [2024-12-02 10:36:37,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:37,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:36:37,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:37,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:36:37,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:36:37,127 INFO L87 Difference]: Start difference. First operand 13785 states and 22341 transitions. Second operand has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 3 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:36:37,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:37,770 INFO L93 Difference]: Finished difference Result 13800 states and 22359 transitions. [2024-12-02 10:36:37,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:36:37,770 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 3 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2024-12-02 10:36:37,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:37,840 INFO L225 Difference]: With dead ends: 13800 [2024-12-02 10:36:37,840 INFO L226 Difference]: Without dead ends: 13785 [2024-12-02 10:36:37,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 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 10:36:37,851 INFO L435 NwaCegarLoop]: 786 mSDtfsCounter, 19 mSDsluCounter, 6252 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 7038 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 10:36:37,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 7038 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:37,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13785 states. [2024-12-02 10:36:38,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13785 to 13785. [2024-12-02 10:36:38,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13785 states, 10413 states have (on average 1.546624411792951) internal successors, (16105), 11012 states have internal predecessors, (16105), 2581 states have call successors, (2581), 565 states have call predecessors, (2581), 790 states have return successors, (3645), 2503 states have call predecessors, (3645), 2576 states have call successors, (3645) [2024-12-02 10:36:38,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13785 states to 13785 states and 22331 transitions. [2024-12-02 10:36:38,550 INFO L78 Accepts]: Start accepts. Automaton has 13785 states and 22331 transitions. Word has length 120 [2024-12-02 10:36:38,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:38,551 INFO L471 AbstractCegarLoop]: Abstraction has 13785 states and 22331 transitions. [2024-12-02 10:36:38,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 3 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 10:36:38,551 INFO L276 IsEmpty]: Start isEmpty. Operand 13785 states and 22331 transitions. [2024-12-02 10:36:38,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 10:36:38,553 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:38,553 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:38,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 10:36:38,554 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:38,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:38,554 INFO L85 PathProgramCache]: Analyzing trace with hash 139320097, now seen corresponding path program 1 times [2024-12-02 10:36:38,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:38,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489004518] [2024-12-02 10:36:38,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:38,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:38,752 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 10:36:38,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:38,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489004518] [2024-12-02 10:36:38,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489004518] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:38,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:38,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:36:38,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848170383] [2024-12-02 10:36:38,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:38,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:36:38,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:38,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:36:38,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:36:38,754 INFO L87 Difference]: Start difference. First operand 13785 states and 22331 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:36:40,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:40,610 INFO L93 Difference]: Finished difference Result 27633 states and 45015 transitions. [2024-12-02 10:36:40,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:36:40,611 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 129 [2024-12-02 10:36:40,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:40,673 INFO L225 Difference]: With dead ends: 27633 [2024-12-02 10:36:40,673 INFO L226 Difference]: Without dead ends: 13905 [2024-12-02 10:36:40,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:36:40,712 INFO L435 NwaCegarLoop]: 373 mSDtfsCounter, 1189 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 2461 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 1580 SdHoareTripleChecker+Invalid, 2779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 2461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:40,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 1580 Invalid, 2779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 2461 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 10:36:40,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13905 states. [2024-12-02 10:36:41,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13905 to 13785. [2024-12-02 10:36:41,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13785 states, 10413 states have (on average 1.5456640737539613) internal successors, (16095), 11012 states have internal predecessors, (16095), 2581 states have call successors, (2581), 565 states have call predecessors, (2581), 790 states have return successors, (3645), 2503 states have call predecessors, (3645), 2576 states have call successors, (3645) [2024-12-02 10:36:41,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13785 states to 13785 states and 22321 transitions. [2024-12-02 10:36:41,757 INFO L78 Accepts]: Start accepts. Automaton has 13785 states and 22321 transitions. Word has length 129 [2024-12-02 10:36:41,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:41,757 INFO L471 AbstractCegarLoop]: Abstraction has 13785 states and 22321 transitions. [2024-12-02 10:36:41,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 10:36:41,757 INFO L276 IsEmpty]: Start isEmpty. Operand 13785 states and 22321 transitions. [2024-12-02 10:36:41,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:36:41,759 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:41,759 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:41,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 10:36:41,760 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:41,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:41,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1351630125, now seen corresponding path program 1 times [2024-12-02 10:36:41,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:41,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146000110] [2024-12-02 10:36:41,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:41,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:41,855 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 10:36:41,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:41,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146000110] [2024-12-02 10:36:41,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146000110] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:41,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:41,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:36:41,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929702680] [2024-12-02 10:36:41,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:41,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:36:41,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:41,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:36:41,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:36:41,856 INFO L87 Difference]: Start difference. First operand 13785 states and 22321 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 10:36:44,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:44,572 INFO L93 Difference]: Finished difference Result 44268 states and 73697 transitions. [2024-12-02 10:36:44,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:36:44,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 140 [2024-12-02 10:36:44,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:44,720 INFO L225 Difference]: With dead ends: 44268 [2024-12-02 10:36:44,720 INFO L226 Difference]: Without dead ends: 30528 [2024-12-02 10:36:44,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:44,775 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 1775 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 1153 mSolverCounterSat, 359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1843 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 1153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:44,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1843 Valid, 911 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [359 Valid, 1153 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 10:36:44,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30528 states. [2024-12-02 10:36:46,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30528 to 29721. [2024-12-02 10:36:46,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29721 states, 22028 states have (on average 1.5421735972398765) internal successors, (33971), 23414 states have internal predecessors, (33971), 6053 states have call successors, (6053), 1125 states have call predecessors, (6053), 1639 states have return successors, (9588), 5928 states have call predecessors, (9588), 6048 states have call successors, (9588) [2024-12-02 10:36:46,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29721 states to 29721 states and 49612 transitions. [2024-12-02 10:36:46,533 INFO L78 Accepts]: Start accepts. Automaton has 29721 states and 49612 transitions. Word has length 140 [2024-12-02 10:36:46,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:46,533 INFO L471 AbstractCegarLoop]: Abstraction has 29721 states and 49612 transitions. [2024-12-02 10:36:46,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 10:36:46,534 INFO L276 IsEmpty]: Start isEmpty. Operand 29721 states and 49612 transitions. [2024-12-02 10:36:46,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 10:36:46,537 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:46,537 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:46,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 10:36:46,537 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:46,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:46,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1049258973, now seen corresponding path program 1 times [2024-12-02 10:36:46,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:46,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775690454] [2024-12-02 10:36:46,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:46,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:46,642 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 10:36:46,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:46,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775690454] [2024-12-02 10:36:46,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775690454] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:46,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:46,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:36:46,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866024211] [2024-12-02 10:36:46,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:46,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:36:46,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:46,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:36:46,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:36:46,643 INFO L87 Difference]: Start difference. First operand 29721 states and 49612 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 10:36:52,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:52,018 INFO L93 Difference]: Finished difference Result 97124 states and 169048 transitions. [2024-12-02 10:36:52,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:36:52,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 141 [2024-12-02 10:36:52,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:52,405 INFO L225 Difference]: With dead ends: 97124 [2024-12-02 10:36:52,405 INFO L226 Difference]: Without dead ends: 67448 [2024-12-02 10:36:52,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:52,569 INFO L435 NwaCegarLoop]: 371 mSDtfsCounter, 1777 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1844 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 1503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:52,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1844 Valid, 884 Invalid, 1503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 1140 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 10:36:52,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67448 states. [2024-12-02 10:36:57,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67448 to 65652. [2024-12-02 10:36:57,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65652 states, 47573 states have (on average 1.5379942404304963) internal successors, (73167), 50843 states have internal predecessors, (73167), 14658 states have call successors, (14658), 2245 states have call predecessors, (14658), 3420 states have return successors, (26816), 14491 states have call predecessors, (26816), 14653 states have call successors, (26816) [2024-12-02 10:36:57,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65652 states to 65652 states and 114641 transitions. [2024-12-02 10:36:57,829 INFO L78 Accepts]: Start accepts. Automaton has 65652 states and 114641 transitions. Word has length 141 [2024-12-02 10:36:57,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:57,829 INFO L471 AbstractCegarLoop]: Abstraction has 65652 states and 114641 transitions. [2024-12-02 10:36:57,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 10:36:57,830 INFO L276 IsEmpty]: Start isEmpty. Operand 65652 states and 114641 transitions. [2024-12-02 10:36:57,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:36:57,834 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:57,834 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:57,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 10:36:57,835 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:57,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:57,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1832594223, now seen corresponding path program 1 times [2024-12-02 10:36:57,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:57,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783818577] [2024-12-02 10:36:57,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:57,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:57,930 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 10:36:57,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:57,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783818577] [2024-12-02 10:36:57,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783818577] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:57,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:57,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:36:57,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565866820] [2024-12-02 10:36:57,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:57,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:36:57,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:57,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:36:57,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:36:57,931 INFO L87 Difference]: Start difference. First operand 65652 states and 114641 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 10:37:10,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:37:10,622 INFO L93 Difference]: Finished difference Result 218351 states and 405177 transitions. [2024-12-02 10:37:10,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:37:10,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 142 [2024-12-02 10:37:10,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:37:11,497 INFO L225 Difference]: With dead ends: 218351 [2024-12-02 10:37:11,497 INFO L226 Difference]: Without dead ends: 152744 [2024-12-02 10:37:11,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:37:11,787 INFO L435 NwaCegarLoop]: 371 mSDtfsCounter, 1765 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 1505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:37:11,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1831 Valid, 881 Invalid, 1505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 1140 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 10:37:11,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152744 states. [2024-12-02 10:37:22,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152744 to 148995. [2024-12-02 10:37:22,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148995 states, 105275 states have (on average 1.5333649964379008) internal successors, (161425), 113140 states have internal predecessors, (161425), 36529 states have call successors, (36529), 4485 states have call predecessors, (36529), 7190 states have return successors, (78690), 36434 states have call predecessors, (78690), 36524 states have call successors, (78690) [2024-12-02 10:37:23,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148995 states to 148995 states and 276644 transitions. [2024-12-02 10:37:23,739 INFO L78 Accepts]: Start accepts. Automaton has 148995 states and 276644 transitions. Word has length 142 [2024-12-02 10:37:23,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:37:23,740 INFO L471 AbstractCegarLoop]: Abstraction has 148995 states and 276644 transitions. [2024-12-02 10:37:23,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 10:37:23,740 INFO L276 IsEmpty]: Start isEmpty. Operand 148995 states and 276644 transitions. [2024-12-02 10:37:23,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 10:37:23,746 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:37:23,746 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:37:23,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 10:37:23,747 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:37:23,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:37:23,747 INFO L85 PathProgramCache]: Analyzing trace with hash -496825331, now seen corresponding path program 1 times [2024-12-02 10:37:23,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:37:23,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405521587] [2024-12-02 10:37:23,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:37:23,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:37:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:37:23,842 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 10:37:23,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:37:23,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405521587] [2024-12-02 10:37:23,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405521587] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:37:23,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:37:23,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:37:23,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896877958] [2024-12-02 10:37:23,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:37:23,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:37:23,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:37:23,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:37:23,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:37:23,843 INFO L87 Difference]: Start difference. First operand 148995 states and 276644 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:37:53,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:37:53,246 INFO L93 Difference]: Finished difference Result 503834 states and 1020576 transitions. [2024-12-02 10:37:53,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:37:53,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 141 [2024-12-02 10:37:53,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:37:55,847 INFO L225 Difference]: With dead ends: 503834 [2024-12-02 10:37:55,847 INFO L226 Difference]: Without dead ends: 354884 [2024-12-02 10:37:56,783 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:37:56,784 INFO L435 NwaCegarLoop]: 368 mSDtfsCounter, 1759 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1826 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:37:56,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1826 Valid, 878 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 10:37:57,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354884 states. [2024-12-02 10:38:25,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354884 to 348082. [2024-12-02 10:38:26,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348082 states, 239561 states have (on average 1.5284416077742204) internal successors, (366155), 258829 states have internal predecessors, (366155), 93248 states have call successors, (93248), 8965 states have call predecessors, (93248), 15272 states have return successors, (239532), 93765 states have call predecessors, (239532), 93243 states have call successors, (239532) [2024-12-02 10:38:30,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348082 states to 348082 states and 698935 transitions. [2024-12-02 10:38:30,576 INFO L78 Accepts]: Start accepts. Automaton has 348082 states and 698935 transitions. Word has length 141 [2024-12-02 10:38:30,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:38:30,576 INFO L471 AbstractCegarLoop]: Abstraction has 348082 states and 698935 transitions. [2024-12-02 10:38:30,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 10:38:30,576 INFO L276 IsEmpty]: Start isEmpty. Operand 348082 states and 698935 transitions. [2024-12-02 10:38:30,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 10:38:30,585 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:38:30,585 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:38:30,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 10:38:30,586 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:38:30,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:38:30,586 INFO L85 PathProgramCache]: Analyzing trace with hash 182874417, now seen corresponding path program 1 times [2024-12-02 10:38:30,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:38:30,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950568798] [2024-12-02 10:38:30,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:38:30,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:38:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:38:30,913 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 10:38:30,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:38:30,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950568798] [2024-12-02 10:38:30,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950568798] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:38:30,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:38:30,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:38:30,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595535133] [2024-12-02 10:38:30,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:38:30,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:38:30,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:38:30,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:38:30,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:38:30,917 INFO L87 Difference]: Start difference. First operand 348082 states and 698935 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15)