./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec3_product22.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_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB --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 10f09c8c5639b403d441157c6cb90f176690981c36f4af5417d0103735cbe364 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:13:30,696 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:13:30,763 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:13:30,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:13:30,773 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:13:30,800 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:13:30,800 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:13:30,801 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:13:30,801 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:13:30,801 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:13:30,801 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:13:30,801 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:13:30,802 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:13:30,802 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:13:30,802 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:13:30,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:13:30,802 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:13:30,802 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:13:30,802 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:13:30,803 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:13:30,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:13:30,803 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:13:30,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:13:30,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:13:30,804 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:13:30,804 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:13:30,804 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:13:30,804 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:13:30,804 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:13:30,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:13:30,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:13:30,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:13:30,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:13:30,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:13:30,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:13:30,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:13:30,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:13:30,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:13:30,810 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:13:30,810 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:13:30,810 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:13:30,810 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:13:30,810 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:13:30,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:13:30,811 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:13:30,811 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:13:30,811 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:13:30,811 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:13:30,811 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_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 10f09c8c5639b403d441157c6cb90f176690981c36f4af5417d0103735cbe364 [2024-11-28 05:13:31,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:13:31,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:13:31,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:13:31,187 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:13:31,188 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:13:31,190 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c [2024-11-28 05:13:34,406 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/data/c43db0798/8971ca2c4d434fc79cbac1c1f6602b32/FLAG906b7d972 [2024-11-28 05:13:34,821 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:13:34,826 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c [2024-11-28 05:13:34,869 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/data/c43db0798/8971ca2c4d434fc79cbac1c1f6602b32/FLAG906b7d972 [2024-11-28 05:13:34,891 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/data/c43db0798/8971ca2c4d434fc79cbac1c1f6602b32 [2024-11-28 05:13:34,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:13:34,897 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:13:34,901 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:13:34,901 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:13:34,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:13:34,912 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:13:34" (1/1) ... [2024-11-28 05:13:34,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@227ab760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:34, skipping insertion in model container [2024-11-28 05:13:34,914 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:13:34" (1/1) ... [2024-11-28 05:13:35,009 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:13:35,295 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_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c[3205,3218] [2024-11-28 05:13:35,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:13:35,743 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:13:35,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [48] [2024-11-28 05:13:35,759 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [150] [2024-11-28 05:13:35,759 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [159] [2024-11-28 05:13:35,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [525] [2024-11-28 05:13:35,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [563] [2024-11-28 05:13:35,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [752] [2024-11-28 05:13:35,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1102] [2024-11-28 05:13:35,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1769] [2024-11-28 05:13:35,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1784] [2024-11-28 05:13:35,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1904] [2024-11-28 05:13:35,773 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_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c[3205,3218] [2024-11-28 05:13:35,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:13:35,978 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:13:35,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:35 WrapperNode [2024-11-28 05:13:35,979 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:13:35,980 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:13:35,980 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:13:35,980 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:13:35,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:35" (1/1) ... [2024-11-28 05:13:36,019 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:35" (1/1) ... [2024-11-28 05:13:36,092 INFO L138 Inliner]: procedures = 92, calls = 351, calls flagged for inlining = 26, calls inlined = 22, statements flattened = 903 [2024-11-28 05:13:36,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:13:36,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:13:36,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:13:36,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:13:36,111 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:35" (1/1) ... [2024-11-28 05:13:36,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:35" (1/1) ... [2024-11-28 05:13:36,126 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:35" (1/1) ... [2024-11-28 05:13:36,163 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-28 05:13:36,164 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:35" (1/1) ... [2024-11-28 05:13:36,164 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:35" (1/1) ... [2024-11-28 05:13:36,201 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:35" (1/1) ... [2024-11-28 05:13:36,208 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:35" (1/1) ... [2024-11-28 05:13:36,241 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:35" (1/1) ... [2024-11-28 05:13:36,274 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:35" (1/1) ... [2024-11-28 05:13:36,282 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:35" (1/1) ... [2024-11-28 05:13:36,302 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:13:36,303 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:13:36,303 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:13:36,303 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:13:36,305 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:35" (1/1) ... [2024-11-28 05:13:36,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:13:36,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:36,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:36,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:13:36,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:13:36,394 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2024-11-28 05:13:36,394 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2024-11-28 05:13:36,394 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-28 05:13:36,395 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-28 05:13:36,395 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-28 05:13:36,395 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-28 05:13:36,395 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-28 05:13:36,396 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-28 05:13:36,396 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-28 05:13:36,396 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-28 05:13:36,396 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-28 05:13:36,396 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-28 05:13:36,397 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-28 05:13:36,397 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-28 05:13:36,397 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-28 05:13:36,397 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-28 05:13:36,397 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-28 05:13:36,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-28 05:13:36,398 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-28 05:13:36,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-28 05:13:36,398 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-28 05:13:36,398 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-28 05:13:36,398 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-28 05:13:36,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-28 05:13:36,399 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-28 05:13:36,399 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-28 05:13:36,399 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2024-11-28 05:13:36,399 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2024-11-28 05:13:36,399 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-28 05:13:36,399 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-28 05:13:36,400 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2024-11-28 05:13:36,401 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2024-11-28 05:13:36,401 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-28 05:13:36,401 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-28 05:13:36,401 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-28 05:13:36,401 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-28 05:13:36,401 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-28 05:13:36,401 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-28 05:13:36,401 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-28 05:13:36,401 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-28 05:13:36,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:13:36,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 05:13:36,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 05:13:36,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 05:13:36,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 05:13:36,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 05:13:36,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 05:13:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 05:13:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 05:13:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-28 05:13:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-28 05:13:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-28 05:13:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-28 05:13:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-28 05:13:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-28 05:13:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-28 05:13:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-28 05:13:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-28 05:13:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-28 05:13:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-28 05:13:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-28 05:13:36,404 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-28 05:13:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-28 05:13:36,404 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-28 05:13:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-28 05:13:36,404 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-28 05:13:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-28 05:13:36,404 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-28 05:13:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2024-11-28 05:13:36,404 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2024-11-28 05:13:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2024-11-28 05:13:36,405 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2024-11-28 05:13:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:13:36,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:13:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-28 05:13:36,405 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-28 05:13:36,674 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:13:36,678 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:13:38,686 INFO L? ?]: Removed 462 outVars from TransFormulas that were not future-live. [2024-11-28 05:13:38,686 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:13:38,744 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:13:38,745 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 05:13:38,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:13:38 BoogieIcfgContainer [2024-11-28 05:13:38,745 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:13:38,748 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:13:38,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:13:38,754 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:13:38,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:13:34" (1/3) ... [2024-11-28 05:13:38,755 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f6806f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:13:38, skipping insertion in model container [2024-11-28 05:13:38,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:35" (2/3) ... [2024-11-28 05:13:38,755 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f6806f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:13:38, skipping insertion in model container [2024-11-28 05:13:38,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:13:38" (3/3) ... [2024-11-28 05:13:38,756 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product22.cil.c [2024-11-28 05:13:38,773 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:13:38,775 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec3_product22.cil.c that has 28 procedures, 595 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 05:13:38,869 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:13:38,882 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;@342a7ae8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:13:38,883 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:13:38,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 595 states, 458 states have (on average 1.6746724890829694) internal successors, (767), 478 states have internal predecessors, (767), 108 states have call successors, (108), 27 states have call predecessors, (108), 27 states have return successors, (108), 104 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 05:13:38,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 05:13:38,913 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:38,914 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] [2024-11-28 05:13:38,914 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:38,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:38,922 INFO L85 PathProgramCache]: Analyzing trace with hash -203415366, now seen corresponding path program 1 times [2024-11-28 05:13:38,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:38,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412431026] [2024-11-28 05:13:38,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:38,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:40,033 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:13:40,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:40,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412431026] [2024-11-28 05:13:40,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412431026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:40,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:40,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:13:40,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203270764] [2024-11-28 05:13:40,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:40,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:13:40,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:40,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:13:40,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:40,075 INFO L87 Difference]: Start difference. First operand has 595 states, 458 states have (on average 1.6746724890829694) internal successors, (767), 478 states have internal predecessors, (767), 108 states have call successors, (108), 27 states have call predecessors, (108), 27 states have return successors, (108), 104 states have call predecessors, (108), 108 states have call successors, (108) Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 05:13:40,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:40,465 INFO L93 Difference]: Finished difference Result 1187 states and 1978 transitions. [2024-11-28 05:13:40,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:13:40,468 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 67 [2024-11-28 05:13:40,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:40,487 INFO L225 Difference]: With dead ends: 1187 [2024-11-28 05:13:40,487 INFO L226 Difference]: Without dead ends: 600 [2024-11-28 05:13:40,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:13:40,509 INFO L435 NwaCegarLoop]: 966 mSDtfsCounter, 91 mSDsluCounter, 4745 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5711 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:40,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5711 Invalid, 77 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:40,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-28 05:13:40,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 598. [2024-11-28 05:13:40,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 461 states have (on average 1.665943600867679) internal successors, (768), 481 states have internal predecessors, (768), 109 states have call successors, (109), 27 states have call predecessors, (109), 27 states have return successors, (108), 103 states have call predecessors, (108), 106 states have call successors, (108) [2024-11-28 05:13:40,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 985 transitions. [2024-11-28 05:13:40,640 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 985 transitions. Word has length 67 [2024-11-28 05:13:40,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:40,642 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 985 transitions. [2024-11-28 05:13:40,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 05:13:40,643 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 985 transitions. [2024-11-28 05:13:40,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 05:13:40,651 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:40,651 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] [2024-11-28 05:13:40,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:13:40,652 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:40,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:40,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1627718752, now seen corresponding path program 1 times [2024-11-28 05:13:40,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:40,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675995969] [2024-11-28 05:13:40,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:40,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:41,180 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:13:41,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:41,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675995969] [2024-11-28 05:13:41,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675995969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:41,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:41,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:13:41,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843531928] [2024-11-28 05:13:41,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:41,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:13:41,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:41,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:13:41,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:41,186 INFO L87 Difference]: Start difference. First operand 598 states and 985 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 05:13:41,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:41,411 INFO L93 Difference]: Finished difference Result 1191 states and 1973 transitions. [2024-11-28 05:13:41,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:13:41,412 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 68 [2024-11-28 05:13:41,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:41,425 INFO L225 Difference]: With dead ends: 1191 [2024-11-28 05:13:41,425 INFO L226 Difference]: Without dead ends: 609 [2024-11-28 05:13:41,430 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 [2024-11-28 05:13:41,435 INFO L435 NwaCegarLoop]: 967 mSDtfsCounter, 90 mSDsluCounter, 4739 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 5706 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:41,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 5706 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:41,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2024-11-28 05:13:41,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 598. [2024-11-28 05:13:41,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 461 states have (on average 1.665943600867679) internal successors, (768), 481 states have internal predecessors, (768), 109 states have call successors, (109), 27 states have call predecessors, (109), 27 states have return successors, (108), 103 states have call predecessors, (108), 106 states have call successors, (108) [2024-11-28 05:13:41,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 985 transitions. [2024-11-28 05:13:41,520 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 985 transitions. Word has length 68 [2024-11-28 05:13:41,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:41,522 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 985 transitions. [2024-11-28 05:13:41,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 05:13:41,522 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 985 transitions. [2024-11-28 05:13:41,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 05:13:41,527 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:41,527 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] [2024-11-28 05:13:41,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:13:41,527 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:41,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:41,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1990058526, now seen corresponding path program 1 times [2024-11-28 05:13:41,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:41,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136949836] [2024-11-28 05:13:41,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:41,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:41,821 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:13:41,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:41,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136949836] [2024-11-28 05:13:41,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136949836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:41,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:41,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:13:41,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212609938] [2024-11-28 05:13:41,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:41,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:13:41,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:41,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:13:41,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:13:41,824 INFO L87 Difference]: Start difference. First operand 598 states and 985 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 05:13:41,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:41,931 INFO L93 Difference]: Finished difference Result 1178 states and 1951 transitions. [2024-11-28 05:13:41,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:13:41,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2024-11-28 05:13:41,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:41,943 INFO L225 Difference]: With dead ends: 1178 [2024-11-28 05:13:41,944 INFO L226 Difference]: Without dead ends: 568 [2024-11-28 05:13:41,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:13:41,948 INFO L435 NwaCegarLoop]: 955 mSDtfsCounter, 14 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2860 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:41,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2860 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:13:41,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-28 05:13:41,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2024-11-28 05:13:41,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 434 states have (on average 1.6497695852534562) internal successors, (716), 452 states have internal predecessors, (716), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 102 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-28 05:13:41,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 929 transitions. [2024-11-28 05:13:41,998 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 929 transitions. Word has length 68 [2024-11-28 05:13:41,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:41,998 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 929 transitions. [2024-11-28 05:13:41,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 05:13:41,999 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 929 transitions. [2024-11-28 05:13:42,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 05:13:42,000 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:42,001 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] [2024-11-28 05:13:42,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:13:42,001 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:42,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:42,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1594007966, now seen corresponding path program 1 times [2024-11-28 05:13:42,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:42,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781845480] [2024-11-28 05:13:42,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:42,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:42,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:13:42,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:42,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781845480] [2024-11-28 05:13:42,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781845480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:42,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:42,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:13:42,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915665405] [2024-11-28 05:13:42,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:42,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:13:42,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:42,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:13:42,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:42,451 INFO L87 Difference]: Start difference. First operand 568 states and 929 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 05:13:42,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:42,613 INFO L93 Difference]: Finished difference Result 1129 states and 1857 transitions. [2024-11-28 05:13:42,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:13:42,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 69 [2024-11-28 05:13:42,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:42,625 INFO L225 Difference]: With dead ends: 1129 [2024-11-28 05:13:42,626 INFO L226 Difference]: Without dead ends: 562 [2024-11-28 05:13:42,630 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 [2024-11-28 05:13:42,631 INFO L435 NwaCegarLoop]: 919 mSDtfsCounter, 63 mSDsluCounter, 4537 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 5456 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:42,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 5456 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:13:42,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-28 05:13:42,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2024-11-28 05:13:42,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 428 states have (on average 1.6425233644859814) internal successors, (703), 446 states have internal predecessors, (703), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 102 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-28 05:13:42,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 916 transitions. [2024-11-28 05:13:42,699 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 916 transitions. Word has length 69 [2024-11-28 05:13:42,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:42,699 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 916 transitions. [2024-11-28 05:13:42,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 05:13:42,700 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 916 transitions. [2024-11-28 05:13:42,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 05:13:42,701 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:42,701 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] [2024-11-28 05:13:42,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:13:42,702 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:42,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:42,703 INFO L85 PathProgramCache]: Analyzing trace with hash -415319996, now seen corresponding path program 1 times [2024-11-28 05:13:42,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:42,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383027755] [2024-11-28 05:13:42,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:42,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:43,088 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:13:43,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:43,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383027755] [2024-11-28 05:13:43,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383027755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:43,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:43,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:13:43,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909889590] [2024-11-28 05:13:43,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:43,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:13:43,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:43,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:13:43,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:43,094 INFO L87 Difference]: Start difference. First operand 562 states and 916 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 05:13:43,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:43,237 INFO L93 Difference]: Finished difference Result 1117 states and 1831 transitions. [2024-11-28 05:13:43,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:13:43,238 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 70 [2024-11-28 05:13:43,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:43,248 INFO L225 Difference]: With dead ends: 1117 [2024-11-28 05:13:43,248 INFO L226 Difference]: Without dead ends: 556 [2024-11-28 05:13:43,252 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 [2024-11-28 05:13:43,253 INFO L435 NwaCegarLoop]: 907 mSDtfsCounter, 49 mSDsluCounter, 4489 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 5396 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:43,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 5396 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:43,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-28 05:13:43,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-28 05:13:43,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 422 states have (on average 1.6350710900473933) internal successors, (690), 440 states have internal predecessors, (690), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 102 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-28 05:13:43,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 903 transitions. [2024-11-28 05:13:43,305 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 903 transitions. Word has length 70 [2024-11-28 05:13:43,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:43,306 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 903 transitions. [2024-11-28 05:13:43,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 05:13:43,307 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 903 transitions. [2024-11-28 05:13:43,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 05:13:43,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:43,308 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] [2024-11-28 05:13:43,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:13:43,308 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:43,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:43,309 INFO L85 PathProgramCache]: Analyzing trace with hash 479569797, now seen corresponding path program 1 times [2024-11-28 05:13:43,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:43,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249709393] [2024-11-28 05:13:43,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:43,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:43,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:13:43,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:43,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249709393] [2024-11-28 05:13:43,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249709393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:43,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:43,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:13:43,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572042439] [2024-11-28 05:13:43,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:43,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:13:43,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:43,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:13:43,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:43,596 INFO L87 Difference]: Start difference. First operand 556 states and 903 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 05:13:43,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:43,721 INFO L93 Difference]: Finished difference Result 1105 states and 1805 transitions. [2024-11-28 05:13:43,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:13:43,722 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 70 [2024-11-28 05:13:43,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:43,728 INFO L225 Difference]: With dead ends: 1105 [2024-11-28 05:13:43,729 INFO L226 Difference]: Without dead ends: 556 [2024-11-28 05:13:43,733 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 [2024-11-28 05:13:43,734 INFO L435 NwaCegarLoop]: 895 mSDtfsCounter, 24 mSDsluCounter, 4453 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 5348 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:43,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 5348 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:13:43,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-28 05:13:43,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-28 05:13:43,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 422 states have (on average 1.632701421800948) internal successors, (689), 440 states have internal predecessors, (689), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 102 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-28 05:13:43,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 902 transitions. [2024-11-28 05:13:43,777 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 902 transitions. Word has length 70 [2024-11-28 05:13:43,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:43,778 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 902 transitions. [2024-11-28 05:13:43,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 05:13:43,778 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 902 transitions. [2024-11-28 05:13:43,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-28 05:13:43,781 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:43,781 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] [2024-11-28 05:13:43,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:13:43,781 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:43,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:43,781 INFO L85 PathProgramCache]: Analyzing trace with hash 755729026, now seen corresponding path program 1 times [2024-11-28 05:13:43,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:43,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396352907] [2024-11-28 05:13:43,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:43,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:43,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:13:43,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:43,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396352907] [2024-11-28 05:13:43,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396352907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:43,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:43,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:13:43,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369166951] [2024-11-28 05:13:43,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:43,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:13:43,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:43,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:13:43,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:13:43,959 INFO L87 Difference]: Start difference. First operand 556 states and 902 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 05:13:44,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:44,044 INFO L93 Difference]: Finished difference Result 1096 states and 1790 transitions. [2024-11-28 05:13:44,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:13:44,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2024-11-28 05:13:44,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:44,052 INFO L225 Difference]: With dead ends: 1096 [2024-11-28 05:13:44,052 INFO L226 Difference]: Without dead ends: 556 [2024-11-28 05:13:44,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:13:44,060 INFO L435 NwaCegarLoop]: 887 mSDtfsCounter, 15 mSDsluCounter, 1759 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2646 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:44,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2646 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:13:44,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-28 05:13:44,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-28 05:13:44,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 422 states have (on average 1.6303317535545023) internal successors, (688), 440 states have internal predecessors, (688), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 102 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-28 05:13:44,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 901 transitions. [2024-11-28 05:13:44,102 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 901 transitions. Word has length 71 [2024-11-28 05:13:44,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:44,102 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 901 transitions. [2024-11-28 05:13:44,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 05:13:44,103 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 901 transitions. [2024-11-28 05:13:44,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 05:13:44,111 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:44,111 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] [2024-11-28 05:13:44,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:13:44,111 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:44,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:44,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1409075428, now seen corresponding path program 1 times [2024-11-28 05:13:44,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:44,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469484190] [2024-11-28 05:13:44,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:44,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:44,275 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:13:44,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:44,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469484190] [2024-11-28 05:13:44,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469484190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:44,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:44,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:13:44,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710096373] [2024-11-28 05:13:44,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:44,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:13:44,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:44,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:13:44,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:13:44,278 INFO L87 Difference]: Start difference. First operand 556 states and 901 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 05:13:44,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:44,361 INFO L93 Difference]: Finished difference Result 1096 states and 1788 transitions. [2024-11-28 05:13:44,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:13:44,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2024-11-28 05:13:44,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:44,369 INFO L225 Difference]: With dead ends: 1096 [2024-11-28 05:13:44,369 INFO L226 Difference]: Without dead ends: 556 [2024-11-28 05:13:44,372 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 [2024-11-28 05:13:44,374 INFO L435 NwaCegarLoop]: 888 mSDtfsCounter, 14 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:44,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2648 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:13:44,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-28 05:13:44,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-28 05:13:44,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 422 states have (on average 1.627962085308057) internal successors, (687), 440 states have internal predecessors, (687), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 102 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-28 05:13:44,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 900 transitions. [2024-11-28 05:13:44,408 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 900 transitions. Word has length 72 [2024-11-28 05:13:44,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:44,408 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 900 transitions. [2024-11-28 05:13:44,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 05:13:44,409 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 900 transitions. [2024-11-28 05:13:44,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 05:13:44,411 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:44,411 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] [2024-11-28 05:13:44,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:13:44,412 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:44,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:44,412 INFO L85 PathProgramCache]: Analyzing trace with hash -130473209, now seen corresponding path program 1 times [2024-11-28 05:13:44,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:44,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971103327] [2024-11-28 05:13:44,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:44,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:44,592 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:13:44,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:44,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971103327] [2024-11-28 05:13:44,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971103327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:44,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:44,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:13:44,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448953843] [2024-11-28 05:13:44,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:44,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:13:44,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:44,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:13:44,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:13:44,593 INFO L87 Difference]: Start difference. First operand 556 states and 900 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 05:13:44,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:44,679 INFO L93 Difference]: Finished difference Result 1096 states and 1786 transitions. [2024-11-28 05:13:44,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:13:44,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2024-11-28 05:13:44,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:44,687 INFO L225 Difference]: With dead ends: 1096 [2024-11-28 05:13:44,687 INFO L226 Difference]: Without dead ends: 556 [2024-11-28 05:13:44,690 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 [2024-11-28 05:13:44,691 INFO L435 NwaCegarLoop]: 889 mSDtfsCounter, 13 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2650 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 [2024-11-28 05:13:44,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2650 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:13:44,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-28 05:13:44,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-28 05:13:44,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 422 states have (on average 1.6255924170616114) internal successors, (686), 440 states have internal predecessors, (686), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 102 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-28 05:13:44,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 899 transitions. [2024-11-28 05:13:44,731 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 899 transitions. Word has length 73 [2024-11-28 05:13:44,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:44,731 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 899 transitions. [2024-11-28 05:13:44,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 05:13:44,732 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 899 transitions. [2024-11-28 05:13:44,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 05:13:44,734 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:44,734 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] [2024-11-28 05:13:44,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:13:44,735 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:44,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:44,735 INFO L85 PathProgramCache]: Analyzing trace with hash -930291319, now seen corresponding path program 1 times [2024-11-28 05:13:44,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:44,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497452615] [2024-11-28 05:13:44,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:44,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:44,916 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:13:44,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:44,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497452615] [2024-11-28 05:13:44,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497452615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:44,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:44,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:13:44,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866236767] [2024-11-28 05:13:44,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:44,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:13:44,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:44,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:13:44,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:13:44,923 INFO L87 Difference]: Start difference. First operand 556 states and 899 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 05:13:45,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:45,007 INFO L93 Difference]: Finished difference Result 1096 states and 1784 transitions. [2024-11-28 05:13:45,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:13:45,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2024-11-28 05:13:45,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:45,016 INFO L225 Difference]: With dead ends: 1096 [2024-11-28 05:13:45,017 INFO L226 Difference]: Without dead ends: 556 [2024-11-28 05:13:45,021 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 [2024-11-28 05:13:45,023 INFO L435 NwaCegarLoop]: 890 mSDtfsCounter, 12 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2652 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:45,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2652 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:13:45,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-28 05:13:45,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-28 05:13:45,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 422 states have (on average 1.6232227488151658) internal successors, (685), 440 states have internal predecessors, (685), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 102 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-28 05:13:45,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 898 transitions. [2024-11-28 05:13:45,062 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 898 transitions. Word has length 74 [2024-11-28 05:13:45,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:45,062 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 898 transitions. [2024-11-28 05:13:45,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 05:13:45,063 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 898 transitions. [2024-11-28 05:13:45,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 05:13:45,065 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:45,065 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] [2024-11-28 05:13:45,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 05:13:45,067 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:45,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:45,067 INFO L85 PathProgramCache]: Analyzing trace with hash -273299572, now seen corresponding path program 1 times [2024-11-28 05:13:45,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:45,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169379459] [2024-11-28 05:13:45,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:45,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:45,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 05:13:45,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:45,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169379459] [2024-11-28 05:13:45,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169379459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:13:45,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959676604] [2024-11-28 05:13:45,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:45,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:13:45,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:45,347 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:13:45,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:13:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:45,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 1493 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:13:45,863 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:45,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:45,956 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:13:45,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959676604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:45,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:13:45,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-28 05:13:45,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928321961] [2024-11-28 05:13:45,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:45,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:13:45,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:45,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:13:45,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:45,958 INFO L87 Difference]: Start difference. First operand 556 states and 898 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 05:13:46,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:46,072 INFO L93 Difference]: Finished difference Result 1579 states and 2582 transitions. [2024-11-28 05:13:46,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:13:46,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 75 [2024-11-28 05:13:46,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:46,085 INFO L225 Difference]: With dead ends: 1579 [2024-11-28 05:13:46,085 INFO L226 Difference]: Without dead ends: 1041 [2024-11-28 05:13:46,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:46,092 INFO L435 NwaCegarLoop]: 908 mSDtfsCounter, 859 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:46,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 1701 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:13:46,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2024-11-28 05:13:46,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1026. [2024-11-28 05:13:46,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 786 states have (on average 1.6361323155216285) internal successors, (1286), 821 states have internal predecessors, (1286), 191 states have call successors, (191), 49 states have call predecessors, (191), 48 states have return successors, (193), 183 states have call predecessors, (193), 188 states have call successors, (193) [2024-11-28 05:13:46,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1670 transitions. [2024-11-28 05:13:46,168 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1670 transitions. Word has length 75 [2024-11-28 05:13:46,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:46,170 INFO L471 AbstractCegarLoop]: Abstraction has 1026 states and 1670 transitions. [2024-11-28 05:13:46,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 05:13:46,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1670 transitions. [2024-11-28 05:13:46,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 05:13:46,172 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:46,173 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] [2024-11-28 05:13:46,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:13:46,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 05:13:46,373 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:46,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:46,374 INFO L85 PathProgramCache]: Analyzing trace with hash -430005767, now seen corresponding path program 1 times [2024-11-28 05:13:46,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:46,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970469328] [2024-11-28 05:13:46,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:46,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:46,633 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 05:13:46,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:46,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970469328] [2024-11-28 05:13:46,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970469328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:13:46,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437775141] [2024-11-28 05:13:46,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:46,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:13:46,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:46,636 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:13:46,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:13:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:47,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 1494 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:13:47,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:47,212 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:47,212 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:13:47,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437775141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:47,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:13:47,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-28 05:13:47,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668417527] [2024-11-28 05:13:47,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:47,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:13:47,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:47,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:13:47,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:47,215 INFO L87 Difference]: Start difference. First operand 1026 states and 1670 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 05:13:47,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:47,348 INFO L93 Difference]: Finished difference Result 2519 states and 4128 transitions. [2024-11-28 05:13:47,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:13:47,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 76 [2024-11-28 05:13:47,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:47,364 INFO L225 Difference]: With dead ends: 2519 [2024-11-28 05:13:47,364 INFO L226 Difference]: Without dead ends: 1511 [2024-11-28 05:13:47,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:13:47,372 INFO L435 NwaCegarLoop]: 961 mSDtfsCounter, 861 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 1751 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:47,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 1751 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:13:47,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2024-11-28 05:13:47,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1463. [2024-11-28 05:13:47,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1123 states have (on average 1.6482635796972396) internal successors, (1851), 1175 states have internal predecessors, (1851), 271 states have call successors, (271), 68 states have call predecessors, (271), 68 states have return successors, (278), 261 states have call predecessors, (278), 268 states have call successors, (278) [2024-11-28 05:13:47,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 2400 transitions. [2024-11-28 05:13:47,473 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 2400 transitions. Word has length 76 [2024-11-28 05:13:47,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:47,473 INFO L471 AbstractCegarLoop]: Abstraction has 1463 states and 2400 transitions. [2024-11-28 05:13:47,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 05:13:47,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 2400 transitions. [2024-11-28 05:13:47,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-28 05:13:47,476 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:47,477 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] [2024-11-28 05:13:47,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:13:47,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 05:13:47,680 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:47,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:47,681 INFO L85 PathProgramCache]: Analyzing trace with hash 245114595, now seen corresponding path program 1 times [2024-11-28 05:13:47,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:47,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044920743] [2024-11-28 05:13:47,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:47,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:47,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:13:47,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:47,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044920743] [2024-11-28 05:13:47,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044920743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:47,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:47,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:13:47,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261806410] [2024-11-28 05:13:47,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:47,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:13:47,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:47,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:13:47,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:13:47,916 INFO L87 Difference]: Start difference. First operand 1463 states and 2400 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 05:13:48,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:48,928 INFO L93 Difference]: Finished difference Result 4313 states and 7231 transitions. [2024-11-28 05:13:48,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:13:48,929 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 78 [2024-11-28 05:13:48,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:48,964 INFO L225 Difference]: With dead ends: 4313 [2024-11-28 05:13:48,964 INFO L226 Difference]: Without dead ends: 2868 [2024-11-28 05:13:49,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:13:49,003 INFO L435 NwaCegarLoop]: 1035 mSDtfsCounter, 888 mSDsluCounter, 3699 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 4734 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:49,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 4734 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 05:13:49,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2868 states. [2024-11-28 05:13:49,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2868 to 2821. [2024-11-28 05:13:49,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2821 states, 2167 states have (on average 1.6483617904937702) internal successors, (3572), 2267 states have internal predecessors, (3572), 521 states have call successors, (521), 130 states have call predecessors, (521), 132 states have return successors, (619), 507 states have call predecessors, (619), 517 states have call successors, (619) [2024-11-28 05:13:49,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2821 states to 2821 states and 4712 transitions. [2024-11-28 05:13:49,353 INFO L78 Accepts]: Start accepts. Automaton has 2821 states and 4712 transitions. Word has length 78 [2024-11-28 05:13:49,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:49,354 INFO L471 AbstractCegarLoop]: Abstraction has 2821 states and 4712 transitions. [2024-11-28 05:13:49,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 05:13:49,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2821 states and 4712 transitions. [2024-11-28 05:13:49,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 05:13:49,359 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:49,359 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] [2024-11-28 05:13:49,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 05:13:49,360 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:49,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:49,361 INFO L85 PathProgramCache]: Analyzing trace with hash -702026218, now seen corresponding path program 1 times [2024-11-28 05:13:49,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:49,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367673343] [2024-11-28 05:13:49,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:49,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 05:13:49,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:49,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367673343] [2024-11-28 05:13:49,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367673343] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:13:49,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005890809] [2024-11-28 05:13:49,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:49,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:13:49,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:49,610 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:13:49,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:13:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:50,097 INFO L256 TraceCheckSpWp]: Trace formula consists of 1512 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 05:13:50,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:50,327 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:50,327 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:13:50,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005890809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:50,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:13:50,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-11-28 05:13:50,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153273666] [2024-11-28 05:13:50,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:50,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:13:50,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:50,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:13:50,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:13:50,331 INFO L87 Difference]: Start difference. First operand 2821 states and 4712 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 4 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 05:13:51,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:51,682 INFO L93 Difference]: Finished difference Result 7636 states and 13034 transitions. [2024-11-28 05:13:51,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:13:51,683 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 4 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 79 [2024-11-28 05:13:51,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:51,736 INFO L225 Difference]: With dead ends: 7636 [2024-11-28 05:13:51,736 INFO L226 Difference]: Without dead ends: 4833 [2024-11-28 05:13:51,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:13:51,761 INFO L435 NwaCegarLoop]: 872 mSDtfsCounter, 762 mSDsluCounter, 3177 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 4049 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:51,763 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 4049 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 05:13:51,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4833 states. [2024-11-28 05:13:52,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4833 to 4790. [2024-11-28 05:13:52,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4790 states, 3676 states have (on average 1.601741022850925) internal successors, (5888), 3842 states have internal predecessors, (5888), 874 states have call successors, (874), 232 states have call predecessors, (874), 239 states have return successors, (1177), 855 states have call predecessors, (1177), 868 states have call successors, (1177) [2024-11-28 05:13:52,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4790 states to 4790 states and 7939 transitions. [2024-11-28 05:13:52,145 INFO L78 Accepts]: Start accepts. Automaton has 4790 states and 7939 transitions. Word has length 79 [2024-11-28 05:13:52,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:52,146 INFO L471 AbstractCegarLoop]: Abstraction has 4790 states and 7939 transitions. [2024-11-28 05:13:52,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 4 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 05:13:52,147 INFO L276 IsEmpty]: Start isEmpty. Operand 4790 states and 7939 transitions. [2024-11-28 05:13:52,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 05:13:52,148 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:52,148 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] [2024-11-28 05:13:52,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:52,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 05:13:52,353 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:52,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:52,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1357373064, now seen corresponding path program 1 times [2024-11-28 05:13:52,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:52,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678315656] [2024-11-28 05:13:52,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:52,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:52,514 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:13:52,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:52,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678315656] [2024-11-28 05:13:52,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678315656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:52,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:52,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:13:52,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474532795] [2024-11-28 05:13:52,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:52,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:13:52,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:52,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:13:52,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:13:52,517 INFO L87 Difference]: Start difference. First operand 4790 states and 7939 transitions. 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 05:13:52,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:52,930 INFO L93 Difference]: Finished difference Result 9586 states and 16053 transitions. [2024-11-28 05:13:52,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:13:52,931 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 79 [2024-11-28 05:13:52,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:52,986 INFO L225 Difference]: With dead ends: 9586 [2024-11-28 05:13:52,987 INFO L226 Difference]: Without dead ends: 4814 [2024-11-28 05:13:53,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:13:53,026 INFO L435 NwaCegarLoop]: 881 mSDtfsCounter, 12 mSDsluCounter, 1735 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2616 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:53,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2616 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:53,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4814 states. [2024-11-28 05:13:53,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4814 to 4798. [2024-11-28 05:13:53,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4798 states, 3682 states have (on average 1.6002172732210755) internal successors, (5892), 3848 states have internal predecessors, (5892), 874 states have call successors, (874), 236 states have call predecessors, (874), 241 states have return successors, (1166), 853 states have call predecessors, (1166), 868 states have call successors, (1166) [2024-11-28 05:13:53,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4798 states to 4798 states and 7932 transitions. [2024-11-28 05:13:53,553 INFO L78 Accepts]: Start accepts. Automaton has 4798 states and 7932 transitions. Word has length 79 [2024-11-28 05:13:53,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:53,554 INFO L471 AbstractCegarLoop]: Abstraction has 4798 states and 7932 transitions. [2024-11-28 05:13:53,554 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 05:13:53,554 INFO L276 IsEmpty]: Start isEmpty. Operand 4798 states and 7932 transitions. [2024-11-28 05:13:53,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 05:13:53,556 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:53,557 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] [2024-11-28 05:13:53,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 05:13:53,557 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:53,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:53,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1456376169, now seen corresponding path program 1 times [2024-11-28 05:13:53,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:53,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364332682] [2024-11-28 05:13:53,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:53,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:53,812 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 05:13:53,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:53,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364332682] [2024-11-28 05:13:53,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364332682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:53,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:53,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:13:53,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053913306] [2024-11-28 05:13:53,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:53,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:13:53,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:53,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:13:53,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:13:53,814 INFO L87 Difference]: Start difference. First operand 4798 states and 7932 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 05:13:55,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:55,028 INFO L93 Difference]: Finished difference Result 14327 states and 24677 transitions. [2024-11-28 05:13:55,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:13:55,029 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 87 [2024-11-28 05:13:55,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:55,158 INFO L225 Difference]: With dead ends: 14327 [2024-11-28 05:13:55,158 INFO L226 Difference]: Without dead ends: 9547 [2024-11-28 05:13:55,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:13:55,189 INFO L435 NwaCegarLoop]: 995 mSDtfsCounter, 884 mSDsluCounter, 3588 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 4583 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:55,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 4583 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 05:13:55,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9547 states. [2024-11-28 05:13:55,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9547 to 9478. [2024-11-28 05:13:55,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9478 states, 7276 states have (on average 1.596069268829027) internal successors, (11613), 7602 states have internal predecessors, (11613), 1720 states have call successors, (1720), 466 states have call predecessors, (1720), 481 states have return successors, (2824), 1689 states have call predecessors, (2824), 1710 states have call successors, (2824) [2024-11-28 05:13:56,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9478 states to 9478 states and 16157 transitions. [2024-11-28 05:13:56,013 INFO L78 Accepts]: Start accepts. Automaton has 9478 states and 16157 transitions. Word has length 87 [2024-11-28 05:13:56,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:56,014 INFO L471 AbstractCegarLoop]: Abstraction has 9478 states and 16157 transitions. [2024-11-28 05:13:56,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 05:13:56,015 INFO L276 IsEmpty]: Start isEmpty. Operand 9478 states and 16157 transitions. [2024-11-28 05:13:56,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 05:13:56,017 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:56,017 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] [2024-11-28 05:13:56,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 05:13:56,018 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:56,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:56,018 INFO L85 PathProgramCache]: Analyzing trace with hash 918286988, now seen corresponding path program 1 times [2024-11-28 05:13:56,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:56,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155833527] [2024-11-28 05:13:56,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:56,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:56,131 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:13:56,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:56,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155833527] [2024-11-28 05:13:56,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155833527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:56,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:56,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:13:56,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656184539] [2024-11-28 05:13:56,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:56,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:13:56,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:56,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:13:56,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:13:56,135 INFO L87 Difference]: Start difference. First operand 9478 states and 16157 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 05:13:56,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:56,846 INFO L93 Difference]: Finished difference Result 19010 states and 32887 transitions. [2024-11-28 05:13:56,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:13:56,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 88 [2024-11-28 05:13:56,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:56,967 INFO L225 Difference]: With dead ends: 19010 [2024-11-28 05:13:56,967 INFO L226 Difference]: Without dead ends: 9550 [2024-11-28 05:13:57,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:13:57,043 INFO L435 NwaCegarLoop]: 877 mSDtfsCounter, 12 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2607 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:57,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2607 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:13:57,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9550 states. [2024-11-28 05:13:57,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9550 to 9518. [2024-11-28 05:13:57,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9518 states, 7312 states have (on average 1.5936816192560175) internal successors, (11653), 7630 states have internal predecessors, (11653), 1720 states have call successors, (1720), 482 states have call predecessors, (1720), 485 states have return successors, (2808), 1685 states have call predecessors, (2808), 1710 states have call successors, (2808) [2024-11-28 05:13:57,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9518 states to 9518 states and 16181 transitions. [2024-11-28 05:13:57,970 INFO L78 Accepts]: Start accepts. Automaton has 9518 states and 16181 transitions. Word has length 88 [2024-11-28 05:13:57,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:57,970 INFO L471 AbstractCegarLoop]: Abstraction has 9518 states and 16181 transitions. [2024-11-28 05:13:57,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 05:13:57,971 INFO L276 IsEmpty]: Start isEmpty. Operand 9518 states and 16181 transitions. [2024-11-28 05:13:57,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 05:13:57,974 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:57,974 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] [2024-11-28 05:13:57,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 05:13:57,975 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:57,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:57,976 INFO L85 PathProgramCache]: Analyzing trace with hash -590421578, now seen corresponding path program 1 times [2024-11-28 05:13:57,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:57,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825747918] [2024-11-28 05:13:57,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:57,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:58,288 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 05:13:58,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:58,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825747918] [2024-11-28 05:13:58,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825747918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:58,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:58,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:13:58,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937841806] [2024-11-28 05:13:58,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:58,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:13:58,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:58,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:13:58,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:13:58,290 INFO L87 Difference]: Start difference. First operand 9518 states and 16181 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 05:13:59,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:59,963 INFO L93 Difference]: Finished difference Result 28565 states and 51525 transitions. [2024-11-28 05:13:59,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:13:59,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 97 [2024-11-28 05:13:59,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:14:00,149 INFO L225 Difference]: With dead ends: 28565 [2024-11-28 05:14:00,150 INFO L226 Difference]: Without dead ends: 19065 [2024-11-28 05:14:00,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:14:00,215 INFO L435 NwaCegarLoop]: 1004 mSDtfsCounter, 881 mSDsluCounter, 3627 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 4631 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:14:00,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 4631 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:14:00,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19065 states. [2024-11-28 05:14:01,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19065 to 18964. [2024-11-28 05:14:01,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18964 states, 14572 states have (on average 1.5901043096349163) internal successors, (23171), 15202 states have internal predecessors, (23171), 3418 states have call successors, (3418), 958 states have call predecessors, (3418), 973 states have return successors, (7187), 3363 states have call predecessors, (7187), 3400 states have call successors, (7187) [2024-11-28 05:14:01,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18964 states to 18964 states and 33776 transitions. [2024-11-28 05:14:01,544 INFO L78 Accepts]: Start accepts. Automaton has 18964 states and 33776 transitions. Word has length 97 [2024-11-28 05:14:01,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:14:01,544 INFO L471 AbstractCegarLoop]: Abstraction has 18964 states and 33776 transitions. [2024-11-28 05:14:01,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 05:14:01,544 INFO L276 IsEmpty]: Start isEmpty. Operand 18964 states and 33776 transitions. [2024-11-28 05:14:01,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 05:14:01,547 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:01,548 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] [2024-11-28 05:14:01,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 05:14:01,548 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:14:01,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:01,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1180374421, now seen corresponding path program 1 times [2024-11-28 05:14:01,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:14:01,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562074271] [2024-11-28 05:14:01,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:01,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:01,700 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 05:14:01,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:14:01,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562074271] [2024-11-28 05:14:01,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562074271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:14:01,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:14:01,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:14:01,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559216598] [2024-11-28 05:14:01,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:14:01,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:14:01,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:14:01,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:14:01,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:14:01,702 INFO L87 Difference]: Start difference. First operand 18964 states and 33776 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-28 05:14:03,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:14:03,449 INFO L93 Difference]: Finished difference Result 38054 states and 69336 transitions. [2024-11-28 05:14:03,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:14:03,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 98 [2024-11-28 05:14:03,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:14:03,632 INFO L225 Difference]: With dead ends: 38054 [2024-11-28 05:14:03,632 INFO L226 Difference]: Without dead ends: 19108 [2024-11-28 05:14:03,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:14:03,762 INFO L435 NwaCegarLoop]: 878 mSDtfsCounter, 11 mSDsluCounter, 1732 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:14:03,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2610 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:14:03,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19108 states. [2024-11-28 05:14:04,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19108 to 19044. [2024-11-28 05:14:04,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19044 states, 14644 states have (on average 1.587749248839115) internal successors, (23251), 15274 states have internal predecessors, (23251), 3418 states have call successors, (3418), 974 states have call predecessors, (3418), 981 states have return successors, (7167), 3355 states have call predecessors, (7167), 3400 states have call successors, (7167) [2024-11-28 05:14:05,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19044 states to 19044 states and 33836 transitions. [2024-11-28 05:14:05,033 INFO L78 Accepts]: Start accepts. Automaton has 19044 states and 33836 transitions. Word has length 98 [2024-11-28 05:14:05,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:14:05,033 INFO L471 AbstractCegarLoop]: Abstraction has 19044 states and 33836 transitions. [2024-11-28 05:14:05,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-28 05:14:05,034 INFO L276 IsEmpty]: Start isEmpty. Operand 19044 states and 33836 transitions. [2024-11-28 05:14:05,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 05:14:05,037 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:05,037 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:14:05,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 05:14:05,038 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:14:05,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:05,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1319739949, now seen corresponding path program 1 times [2024-11-28 05:14:05,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:14:05,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832315473] [2024-11-28 05:14:05,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:05,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:05,346 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 05:14:05,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:14:05,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832315473] [2024-11-28 05:14:05,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832315473] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:14:05,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261741962] [2024-11-28 05:14:05,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:05,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:14:05,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:14:05,349 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:14:05,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:14:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:05,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 1848 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:14:05,832 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:14:06,123 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 05:14:06,123 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:14:06,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261741962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:14:06,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:14:06,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-28 05:14:06,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382811277] [2024-11-28 05:14:06,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:14:06,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:14:06,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:14:06,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:14:06,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:14:06,128 INFO L87 Difference]: Start difference. First operand 19044 states and 33836 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-28 05:14:15,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:14:15,380 INFO L93 Difference]: Finished difference Result 67941 states and 127927 transitions. [2024-11-28 05:14:15,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 05:14:15,380 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 136 [2024-11-28 05:14:15,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:14:16,097 INFO L225 Difference]: With dead ends: 67941 [2024-11-28 05:14:16,097 INFO L226 Difference]: Without dead ends: 48915 [2024-11-28 05:14:16,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2024-11-28 05:14:16,269 INFO L435 NwaCegarLoop]: 644 mSDtfsCounter, 2520 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 6725 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2698 SdHoareTripleChecker+Valid, 2632 SdHoareTripleChecker+Invalid, 7242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 6725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:14:16,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2698 Valid, 2632 Invalid, 7242 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [517 Valid, 6725 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-28 05:14:16,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48915 states. [2024-11-28 05:14:18,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48915 to 48254. [2024-11-28 05:14:18,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48254 states, 37140 states have (on average 1.581502423263328) internal successors, (58737), 38666 states have internal predecessors, (58737), 8548 states have call successors, (8548), 2422 states have call predecessors, (8548), 2565 states have return successors, (21546), 8533 states have call predecessors, (21546), 8514 states have call successors, (21546) [2024-11-28 05:14:19,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48254 states to 48254 states and 88831 transitions. [2024-11-28 05:14:19,692 INFO L78 Accepts]: Start accepts. Automaton has 48254 states and 88831 transitions. Word has length 136 [2024-11-28 05:14:19,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:14:19,692 INFO L471 AbstractCegarLoop]: Abstraction has 48254 states and 88831 transitions. [2024-11-28 05:14:19,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-28 05:14:19,693 INFO L276 IsEmpty]: Start isEmpty. Operand 48254 states and 88831 transitions. [2024-11-28 05:14:19,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 05:14:19,695 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:19,695 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-11-28 05:14:19,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 05:14:19,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e832a55d-92c5-4f63-8b3e-3d28d0f104fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:14:19,896 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:14:19,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:19,897 INFO L85 PathProgramCache]: Analyzing trace with hash -516631900, now seen corresponding path program 1 times [2024-11-28 05:14:19,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:14:19,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135709847] [2024-11-28 05:14:19,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:19,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:20,198 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 05:14:20,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:14:20,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135709847] [2024-11-28 05:14:20,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135709847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:14:20,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:14:20,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:14:20,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752255431] [2024-11-28 05:14:20,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:14:20,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:14:20,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:14:20,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:14:20,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:14:20,201 INFO L87 Difference]: Start difference. First operand 48254 states and 88831 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 05:14:26,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:14:26,256 INFO L93 Difference]: Finished difference Result 145177 states and 297188 transitions. [2024-11-28 05:14:26,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:14:26,256 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2024-11-28 05:14:26,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:14:27,661 INFO L225 Difference]: With dead ends: 145177 [2024-11-28 05:14:27,661 INFO L226 Difference]: Without dead ends: 96941 [2024-11-28 05:14:28,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:14:28,214 INFO L435 NwaCegarLoop]: 973 mSDtfsCounter, 876 mSDsluCounter, 3545 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 4518 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:14:28,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 4518 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:14:28,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96941 states. [2024-11-28 05:14:33,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96941 to 96584. [2024-11-28 05:14:33,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96584 states, 74346 states have (on average 1.5785247356952627) internal successors, (117357), 77384 states have internal predecessors, (117357), 17064 states have call successors, (17064), 4838 states have call predecessors, (17064), 5173 states have return successors, (58071), 17097 states have call predecessors, (58071), 16998 states have call successors, (58071) [2024-11-28 05:14:35,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96584 states to 96584 states and 192492 transitions. [2024-11-28 05:14:35,298 INFO L78 Accepts]: Start accepts. Automaton has 96584 states and 192492 transitions. Word has length 108 [2024-11-28 05:14:35,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:14:35,299 INFO L471 AbstractCegarLoop]: Abstraction has 96584 states and 192492 transitions. [2024-11-28 05:14:35,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 05:14:35,300 INFO L276 IsEmpty]: Start isEmpty. Operand 96584 states and 192492 transitions. [2024-11-28 05:14:35,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 05:14:35,301 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:35,301 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-11-28 05:14:35,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 05:14:35,302 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:14:35,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:35,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1639813969, now seen corresponding path program 1 times [2024-11-28 05:14:35,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:14:35,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619325127] [2024-11-28 05:14:35,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:35,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:35,413 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 05:14:35,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:14:35,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619325127] [2024-11-28 05:14:35,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619325127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:14:35,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:14:35,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:14:35,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450399209] [2024-11-28 05:14:35,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:14:35,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:14:35,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:14:35,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:14:35,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:14:35,416 INFO L87 Difference]: Start difference. First operand 96584 states and 192492 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 05:14:42,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:14:42,377 INFO L93 Difference]: Finished difference Result 194046 states and 404515 transitions. [2024-11-28 05:14:42,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:14:42,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-28 05:14:42,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:14:43,600 INFO L225 Difference]: With dead ends: 194046 [2024-11-28 05:14:43,600 INFO L226 Difference]: Without dead ends: 97480 [2024-11-28 05:14:44,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:14:44,974 INFO L435 NwaCegarLoop]: 877 mSDtfsCounter, 10 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2607 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:14:44,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2607 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 05:14:45,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97480 states.