./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec2_product30.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_0de0ac40-96ca-45a9-b284-99d7431ed989/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de0ac40-96ca-45a9-b284-99d7431ed989/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_0de0ac40-96ca-45a9-b284-99d7431ed989/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de0ac40-96ca-45a9-b284-99d7431ed989/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec2_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de0ac40-96ca-45a9-b284-99d7431ed989/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_0de0ac40-96ca-45a9-b284-99d7431ed989/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 b3416b3e017f399176a4f7a837e050107ced7390b025fd07360efb8b6075a94d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:27:59,839 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:27:59,901 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de0ac40-96ca-45a9-b284-99d7431ed989/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:27:59,906 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:27:59,906 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:27:59,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:27:59,940 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:27:59,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:27:59,940 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:27:59,940 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:27:59,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:27:59,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:27:59,941 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:27:59,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:27:59,941 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:27:59,941 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:27:59,943 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:27:59,943 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:27:59,944 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:27:59,944 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:27:59,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:27:59,945 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:27:59,945 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:27:59,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:27:59,945 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:27:59,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:27:59,945 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:27:59,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:27:59,945 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:27:59,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:27:59,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:27:59,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:27:59,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:27:59,946 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:27:59,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:27:59,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:27:59,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:27:59,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:27:59,946 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:27:59,946 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:27:59,946 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:27:59,947 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:27:59,947 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:27:59,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:27:59,947 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:27:59,947 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:27:59,947 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:27:59,947 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:27:59,947 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_0de0ac40-96ca-45a9-b284-99d7431ed989/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 -> b3416b3e017f399176a4f7a837e050107ced7390b025fd07360efb8b6075a94d [2024-11-28 04:28:00,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:28:00,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:28:00,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:28:00,288 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:28:00,288 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:28:00,289 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de0ac40-96ca-45a9-b284-99d7431ed989/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/elevator_spec2_product30.cil.c [2024-11-28 04:28:03,414 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de0ac40-96ca-45a9-b284-99d7431ed989/bin/uautomizer-verify-aQ6SnzHsRB/data/305f9936c/74d0a9c45f274d0d92a7899fcea4ee4f/FLAG346cfe428 [2024-11-28 04:28:03,831 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:28:03,832 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de0ac40-96ca-45a9-b284-99d7431ed989/sv-benchmarks/c/product-lines/elevator_spec2_product30.cil.c [2024-11-28 04:28:03,853 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de0ac40-96ca-45a9-b284-99d7431ed989/bin/uautomizer-verify-aQ6SnzHsRB/data/305f9936c/74d0a9c45f274d0d92a7899fcea4ee4f/FLAG346cfe428 [2024-11-28 04:28:03,973 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de0ac40-96ca-45a9-b284-99d7431ed989/bin/uautomizer-verify-aQ6SnzHsRB/data/305f9936c/74d0a9c45f274d0d92a7899fcea4ee4f [2024-11-28 04:28:03,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:28:03,977 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:28:03,979 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:28:03,979 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:28:03,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:28:03,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:28:03" (1/1) ... [2024-11-28 04:28:03,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a2dba92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:03, skipping insertion in model container [2024-11-28 04:28:03,986 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:28:03" (1/1) ... [2024-11-28 04:28:04,043 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:28:04,365 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_0de0ac40-96ca-45a9-b284-99d7431ed989/sv-benchmarks/c/product-lines/elevator_spec2_product30.cil.c[10611,10624] [2024-11-28 04:28:04,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:28:04,745 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:28:04,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2024-11-28 04:28:04,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [169] [2024-11-28 04:28:04,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [532] [2024-11-28 04:28:04,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [627] [2024-11-28 04:28:04,759 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [636] [2024-11-28 04:28:04,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1303] [2024-11-28 04:28:04,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1338] [2024-11-28 04:28:04,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [1350] [2024-11-28 04:28:04,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1533] [2024-11-28 04:28:04,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [3112] [2024-11-28 04:28:04,783 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_0de0ac40-96ca-45a9-b284-99d7431ed989/sv-benchmarks/c/product-lines/elevator_spec2_product30.cil.c[10611,10624] [2024-11-28 04:28:04,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:28:04,967 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:28:04,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:04 WrapperNode [2024-11-28 04:28:04,970 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:28:04,971 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:28:04,971 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:28:04,971 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:28:04,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:04" (1/1) ... [2024-11-28 04:28:05,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:04" (1/1) ... [2024-11-28 04:28:05,058 INFO L138 Inliner]: procedures = 95, calls = 347, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 918 [2024-11-28 04:28:05,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:28:05,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:28:05,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:28:05,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:28:05,073 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:04" (1/1) ... [2024-11-28 04:28:05,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:04" (1/1) ... [2024-11-28 04:28:05,080 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:04" (1/1) ... [2024-11-28 04:28:05,105 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-28 04:28:05,106 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:04" (1/1) ... [2024-11-28 04:28:05,106 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:04" (1/1) ... [2024-11-28 04:28:05,126 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:04" (1/1) ... [2024-11-28 04:28:05,128 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:04" (1/1) ... [2024-11-28 04:28:05,152 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:04" (1/1) ... [2024-11-28 04:28:05,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:04" (1/1) ... [2024-11-28 04:28:05,173 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:04" (1/1) ... [2024-11-28 04:28:05,189 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:28:05,189 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:28:05,190 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:28:05,190 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:28:05,191 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:04" (1/1) ... [2024-11-28 04:28:05,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:28:05,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de0ac40-96ca-45a9-b284-99d7431ed989/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:05,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de0ac40-96ca-45a9-b284-99d7431ed989/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:28:05,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de0ac40-96ca-45a9-b284-99d7431ed989/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:28:05,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:28:05,276 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-28 04:28:05,276 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-28 04:28:05,276 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-28 04:28:05,277 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-28 04:28:05,277 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-28 04:28:05,277 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-28 04:28:05,277 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-28 04:28:05,277 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-28 04:28:05,277 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-28 04:28:05,277 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-28 04:28:05,277 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2024-11-28 04:28:05,277 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2024-11-28 04:28:05,277 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-28 04:28:05,277 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-28 04:28:05,278 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-28 04:28:05,278 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-28 04:28:05,278 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-28 04:28:05,278 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-28 04:28:05,278 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-28 04:28:05,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-28 04:28:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-28 04:28:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-28 04:28:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-28 04:28:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-28 04:28:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-28 04:28:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-28 04:28:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-28 04:28:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-28 04:28:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-28 04:28:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-28 04:28:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-28 04:28:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-28 04:28:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-28 04:28:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-28 04:28:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-28 04:28:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-28 04:28:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-28 04:28:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-28 04:28:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:28:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:28:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:28:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:28:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 04:28:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 04:28:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 04:28:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 04:28:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 04:28:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-28 04:28:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-28 04:28:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-28 04:28:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-28 04:28:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-28 04:28:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-28 04:28:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-28 04:28:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-28 04:28:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-28 04:28:05,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-28 04:28:05,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-28 04:28:05,287 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-28 04:28:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-28 04:28:05,287 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-28 04:28:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-28 04:28:05,287 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-28 04:28:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-28 04:28:05,287 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-28 04:28:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-28 04:28:05,287 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2024-11-28 04:28:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2024-11-28 04:28:05,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:28:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:28:05,287 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-28 04:28:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-28 04:28:05,530 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:28:05,532 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:28:07,263 INFO L? ?]: Removed 462 outVars from TransFormulas that were not future-live. [2024-11-28 04:28:07,263 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:28:07,301 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:28:07,305 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:28:07,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:28:07 BoogieIcfgContainer [2024-11-28 04:28:07,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:28:07,307 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:28:07,309 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:28:07,315 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:28:07,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:28:03" (1/3) ... [2024-11-28 04:28:07,316 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279bd5a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:28:07, skipping insertion in model container [2024-11-28 04:28:07,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:04" (2/3) ... [2024-11-28 04:28:07,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279bd5a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:28:07, skipping insertion in model container [2024-11-28 04:28:07,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:28:07" (3/3) ... [2024-11-28 04:28:07,318 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product30.cil.c [2024-11-28 04:28:07,340 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:28:07,343 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec2_product30.cil.c that has 26 procedures, 580 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:28:07,445 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:28:07,459 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;@1deda391, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:28:07,460 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:28:07,467 INFO L276 IsEmpty]: Start isEmpty. Operand has 580 states, 455 states have (on average 1.6945054945054945) internal successors, (771), 478 states have internal predecessors, (771), 98 states have call successors, (98), 25 states have call predecessors, (98), 25 states have return successors, (98), 91 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-28 04:28:07,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-28 04:28:07,480 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:07,481 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:07,481 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:07,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:07,486 INFO L85 PathProgramCache]: Analyzing trace with hash -328147531, now seen corresponding path program 1 times [2024-11-28 04:28:07,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:07,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312913791] [2024-11-28 04:28:07,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:07,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:08,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:08,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:08,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312913791] [2024-11-28 04:28:08,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312913791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:08,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:08,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:28:08,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101813281] [2024-11-28 04:28:08,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:08,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:08,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:08,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:08,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:08,242 INFO L87 Difference]: Start difference. First operand has 580 states, 455 states have (on average 1.6945054945054945) internal successors, (771), 478 states have internal predecessors, (771), 98 states have call successors, (98), 25 states have call predecessors, (98), 25 states have return successors, (98), 91 states have call predecessors, (98), 98 states have call successors, (98) Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:08,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:08,434 INFO L93 Difference]: Finished difference Result 1140 states and 1909 transitions. [2024-11-28 04:28:08,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:08,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2024-11-28 04:28:08,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:08,462 INFO L225 Difference]: With dead ends: 1140 [2024-11-28 04:28:08,465 INFO L226 Difference]: Without dead ends: 572 [2024-11-28 04:28:08,477 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 04:28:08,479 INFO L435 NwaCegarLoop]: 946 mSDtfsCounter, 5 mSDsluCounter, 1888 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:08,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2834 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:28:08,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-28 04:28:08,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2024-11-28 04:28:08,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 449 states have (on average 1.6904231625835189) internal successors, (759), 470 states have internal predecessors, (759), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 04:28:08,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 950 transitions. [2024-11-28 04:28:08,611 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 950 transitions. Word has length 60 [2024-11-28 04:28:08,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:08,611 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 950 transitions. [2024-11-28 04:28:08,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:08,611 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 950 transitions. [2024-11-28 04:28:08,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 04:28:08,622 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:08,622 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:08,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:28:08,623 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:08,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:08,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1456505936, now seen corresponding path program 1 times [2024-11-28 04:28:08,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:08,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800473766] [2024-11-28 04:28:08,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:08,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:08,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:08,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:08,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800473766] [2024-11-28 04:28:08,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800473766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:08,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:08,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:28:08,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488678524] [2024-11-28 04:28:08,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:08,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:08,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:08,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:08,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:08,927 INFO L87 Difference]: Start difference. First operand 572 states and 950 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:09,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:09,053 INFO L93 Difference]: Finished difference Result 1126 states and 1877 transitions. [2024-11-28 04:28:09,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:09,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2024-11-28 04:28:09,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:09,059 INFO L225 Difference]: With dead ends: 1126 [2024-11-28 04:28:09,059 INFO L226 Difference]: Without dead ends: 572 [2024-11-28 04:28:09,062 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 04:28:09,063 INFO L435 NwaCegarLoop]: 939 mSDtfsCounter, 4 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2813 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:09,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2813 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:28:09,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-28 04:28:09,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2024-11-28 04:28:09,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 449 states have (on average 1.688195991091314) internal successors, (758), 470 states have internal predecessors, (758), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 04:28:09,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 949 transitions. [2024-11-28 04:28:09,125 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 949 transitions. Word has length 62 [2024-11-28 04:28:09,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:09,125 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 949 transitions. [2024-11-28 04:28:09,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:09,126 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 949 transitions. [2024-11-28 04:28:09,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 04:28:09,128 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:09,128 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:09,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:28:09,129 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:09,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:09,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1444189455, now seen corresponding path program 1 times [2024-11-28 04:28:09,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:09,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854817361] [2024-11-28 04:28:09,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:09,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:09,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:09,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:09,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854817361] [2024-11-28 04:28:09,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854817361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:09,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:09,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:28:09,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700544570] [2024-11-28 04:28:09,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:09,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:09,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:09,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:09,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:09,355 INFO L87 Difference]: Start difference. First operand 572 states and 949 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:09,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:09,455 INFO L93 Difference]: Finished difference Result 1126 states and 1876 transitions. [2024-11-28 04:28:09,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:09,456 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2024-11-28 04:28:09,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:09,467 INFO L225 Difference]: With dead ends: 1126 [2024-11-28 04:28:09,467 INFO L226 Difference]: Without dead ends: 572 [2024-11-28 04:28:09,473 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 04:28:09,476 INFO L435 NwaCegarLoop]: 939 mSDtfsCounter, 3 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2813 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 04:28:09,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2813 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:28:09,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-28 04:28:09,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2024-11-28 04:28:09,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 449 states have (on average 1.6859688195991092) internal successors, (757), 470 states have internal predecessors, (757), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 04:28:09,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 948 transitions. [2024-11-28 04:28:09,533 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 948 transitions. Word has length 63 [2024-11-28 04:28:09,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:09,533 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 948 transitions. [2024-11-28 04:28:09,533 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:09,533 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 948 transitions. [2024-11-28 04:28:09,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 04:28:09,538 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:09,539 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:09,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:28:09,539 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:09,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:09,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1093415980, now seen corresponding path program 1 times [2024-11-28 04:28:09,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:09,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854926811] [2024-11-28 04:28:09,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:09,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:09,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:09,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:09,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854926811] [2024-11-28 04:28:09,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854926811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:09,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:09,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:28:09,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204846014] [2024-11-28 04:28:09,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:09,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:09,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:09,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:09,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:09,765 INFO L87 Difference]: Start difference. First operand 572 states and 948 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:09,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:09,830 INFO L93 Difference]: Finished difference Result 1126 states and 1875 transitions. [2024-11-28 04:28:09,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:09,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 64 [2024-11-28 04:28:09,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:09,836 INFO L225 Difference]: With dead ends: 1126 [2024-11-28 04:28:09,836 INFO L226 Difference]: Without dead ends: 572 [2024-11-28 04:28:09,839 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 04:28:09,840 INFO L435 NwaCegarLoop]: 939 mSDtfsCounter, 2 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2813 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:09,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2813 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:28:09,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-28 04:28:09,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2024-11-28 04:28:09,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 449 states have (on average 1.6837416481069043) internal successors, (756), 470 states have internal predecessors, (756), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 04:28:09,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 947 transitions. [2024-11-28 04:28:09,872 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 947 transitions. Word has length 64 [2024-11-28 04:28:09,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:09,872 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 947 transitions. [2024-11-28 04:28:09,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:09,872 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 947 transitions. [2024-11-28 04:28:09,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 04:28:09,874 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:09,874 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:09,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:28:09,874 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:09,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:09,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1159589717, now seen corresponding path program 1 times [2024-11-28 04:28:09,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:09,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550649915] [2024-11-28 04:28:09,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:09,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:10,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:10,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:10,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550649915] [2024-11-28 04:28:10,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550649915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:10,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:10,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:28:10,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548593713] [2024-11-28 04:28:10,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:10,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:10,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:10,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:10,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:10,077 INFO L87 Difference]: Start difference. First operand 572 states and 947 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:10,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:10,143 INFO L93 Difference]: Finished difference Result 1126 states and 1874 transitions. [2024-11-28 04:28:10,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:10,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-28 04:28:10,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:10,151 INFO L225 Difference]: With dead ends: 1126 [2024-11-28 04:28:10,151 INFO L226 Difference]: Without dead ends: 572 [2024-11-28 04:28:10,154 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 04:28:10,155 INFO L435 NwaCegarLoop]: 939 mSDtfsCounter, 1 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2813 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:10,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2813 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:28:10,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-28 04:28:10,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2024-11-28 04:28:10,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 449 states have (on average 1.6815144766146994) internal successors, (755), 470 states have internal predecessors, (755), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 04:28:10,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 946 transitions. [2024-11-28 04:28:10,199 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 946 transitions. Word has length 65 [2024-11-28 04:28:10,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:10,201 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 946 transitions. [2024-11-28 04:28:10,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:10,201 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 946 transitions. [2024-11-28 04:28:10,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 04:28:10,203 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:10,203 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:10,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:28:10,203 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:10,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:10,204 INFO L85 PathProgramCache]: Analyzing trace with hash -2042715144, now seen corresponding path program 1 times [2024-11-28 04:28:10,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:10,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643240218] [2024-11-28 04:28:10,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:10,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:10,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:10,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:10,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643240218] [2024-11-28 04:28:10,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643240218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:10,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:10,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:28:10,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444966866] [2024-11-28 04:28:10,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:10,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:28:10,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:10,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:28:10,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:28:10,496 INFO L87 Difference]: Start difference. First operand 572 states and 946 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:28:10,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:10,637 INFO L93 Difference]: Finished difference Result 1092 states and 1806 transitions. [2024-11-28 04:28:10,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:28:10,638 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 66 [2024-11-28 04:28:10,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:10,644 INFO L225 Difference]: With dead ends: 1092 [2024-11-28 04:28:10,644 INFO L226 Difference]: Without dead ends: 587 [2024-11-28 04:28:10,647 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 04:28:10,649 INFO L435 NwaCegarLoop]: 936 mSDtfsCounter, 91 mSDsluCounter, 4599 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5535 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:10,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5535 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:28:10,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-11-28 04:28:10,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 585. [2024-11-28 04:28:10,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 459 states have (on average 1.6775599128540306) internal successors, (770), 482 states have internal predecessors, (770), 99 states have call successors, (99), 25 states have call predecessors, (99), 26 states have return successors, (96), 91 states have call predecessors, (96), 94 states have call successors, (96) [2024-11-28 04:28:10,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 965 transitions. [2024-11-28 04:28:10,682 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 965 transitions. Word has length 66 [2024-11-28 04:28:10,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:10,683 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 965 transitions. [2024-11-28 04:28:10,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:28:10,683 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 965 transitions. [2024-11-28 04:28:10,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 04:28:10,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:10,685 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:10,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:28:10,686 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:10,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:10,686 INFO L85 PathProgramCache]: Analyzing trace with hash -2050474503, now seen corresponding path program 1 times [2024-11-28 04:28:10,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:10,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613072430] [2024-11-28 04:28:10,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:10,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:10,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:10,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:10,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613072430] [2024-11-28 04:28:10,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613072430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:10,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:10,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:28:10,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504921436] [2024-11-28 04:28:10,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:10,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:10,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:10,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:10,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:10,799 INFO L87 Difference]: Start difference. First operand 585 states and 965 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:10,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:10,857 INFO L93 Difference]: Finished difference Result 1144 states and 1900 transitions. [2024-11-28 04:28:10,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:10,857 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-28 04:28:10,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:10,863 INFO L225 Difference]: With dead ends: 1144 [2024-11-28 04:28:10,863 INFO L226 Difference]: Without dead ends: 566 [2024-11-28 04:28:10,866 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 04:28:10,866 INFO L435 NwaCegarLoop]: 940 mSDtfsCounter, 0 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:10,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2815 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:28:10,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-11-28 04:28:10,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2024-11-28 04:28:10,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 443 states have (on average 1.672686230248307) internal successors, (741), 464 states have internal predecessors, (741), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 04:28:10,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 932 transitions. [2024-11-28 04:28:10,894 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 932 transitions. Word has length 66 [2024-11-28 04:28:10,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:10,894 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 932 transitions. [2024-11-28 04:28:10,894 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:10,894 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 932 transitions. [2024-11-28 04:28:10,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 04:28:10,896 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:10,896 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:10,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:28:10,896 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:10,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:10,897 INFO L85 PathProgramCache]: Analyzing trace with hash 331499940, now seen corresponding path program 1 times [2024-11-28 04:28:10,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:10,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796755139] [2024-11-28 04:28:10,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:10,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:11,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:11,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:11,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796755139] [2024-11-28 04:28:11,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796755139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:11,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:11,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:28:11,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273645250] [2024-11-28 04:28:11,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:11,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:28:11,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:11,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:28:11,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:28:11,107 INFO L87 Difference]: Start difference. First operand 566 states and 932 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:11,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:11,386 INFO L93 Difference]: Finished difference Result 1089 states and 1798 transitions. [2024-11-28 04:28:11,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:28:11,386 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2024-11-28 04:28:11,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:11,392 INFO L225 Difference]: With dead ends: 1089 [2024-11-28 04:28:11,393 INFO L226 Difference]: Without dead ends: 575 [2024-11-28 04:28:11,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:28:11,396 INFO L435 NwaCegarLoop]: 889 mSDtfsCounter, 55 mSDsluCounter, 3527 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4416 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:11,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4416 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:28:11,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-11-28 04:28:11,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 566. [2024-11-28 04:28:11,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 443 states have (on average 1.6636568848758464) internal successors, (737), 464 states have internal predecessors, (737), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 04:28:11,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 928 transitions. [2024-11-28 04:28:11,428 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 928 transitions. Word has length 67 [2024-11-28 04:28:11,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:11,430 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 928 transitions. [2024-11-28 04:28:11,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:11,430 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 928 transitions. [2024-11-28 04:28:11,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 04:28:11,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:11,434 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:11,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:28:11,434 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:11,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:11,434 INFO L85 PathProgramCache]: Analyzing trace with hash 2017944693, now seen corresponding path program 1 times [2024-11-28 04:28:11,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:11,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006063051] [2024-11-28 04:28:11,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:11,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:11,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:11,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:11,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006063051] [2024-11-28 04:28:11,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006063051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:11,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:11,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:28:11,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776229043] [2024-11-28 04:28:11,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:11,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:28:11,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:11,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:28:11,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:28:11,628 INFO L87 Difference]: Start difference. First operand 566 states and 928 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:11,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:11,881 INFO L93 Difference]: Finished difference Result 1089 states and 1794 transitions. [2024-11-28 04:28:11,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:28:11,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-11-28 04:28:11,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:11,890 INFO L225 Difference]: With dead ends: 1089 [2024-11-28 04:28:11,890 INFO L226 Difference]: Without dead ends: 575 [2024-11-28 04:28:11,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:28:11,894 INFO L435 NwaCegarLoop]: 889 mSDtfsCounter, 54 mSDsluCounter, 3527 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4416 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:11,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4416 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:28:11,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-11-28 04:28:11,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 566. [2024-11-28 04:28:11,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 443 states have (on average 1.654627539503386) internal successors, (733), 464 states have internal predecessors, (733), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 04:28:11,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 924 transitions. [2024-11-28 04:28:11,929 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 924 transitions. Word has length 68 [2024-11-28 04:28:11,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:11,931 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 924 transitions. [2024-11-28 04:28:11,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:11,932 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 924 transitions. [2024-11-28 04:28:11,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 04:28:11,934 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:11,934 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:11,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:28:11,934 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:11,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:11,936 INFO L85 PathProgramCache]: Analyzing trace with hash -916476577, now seen corresponding path program 1 times [2024-11-28 04:28:11,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:11,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310849321] [2024-11-28 04:28:11,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:11,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:12,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:12,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:12,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310849321] [2024-11-28 04:28:12,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310849321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:12,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:12,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:28:12,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011081277] [2024-11-28 04:28:12,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:12,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:28:12,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:12,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:28:12,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:28:12,127 INFO L87 Difference]: Start difference. First operand 566 states and 924 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:12,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:12,336 INFO L93 Difference]: Finished difference Result 1089 states and 1790 transitions. [2024-11-28 04:28:12,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:28:12,337 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2024-11-28 04:28:12,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:12,342 INFO L225 Difference]: With dead ends: 1089 [2024-11-28 04:28:12,342 INFO L226 Difference]: Without dead ends: 575 [2024-11-28 04:28:12,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:28:12,346 INFO L435 NwaCegarLoop]: 888 mSDtfsCounter, 53 mSDsluCounter, 3510 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4398 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:12,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4398 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:28:12,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-11-28 04:28:12,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 566. [2024-11-28 04:28:12,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 443 states have (on average 1.6455981941309255) internal successors, (729), 464 states have internal predecessors, (729), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 04:28:12,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 920 transitions. [2024-11-28 04:28:12,392 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 920 transitions. Word has length 69 [2024-11-28 04:28:12,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:12,393 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 920 transitions. [2024-11-28 04:28:12,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:12,393 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 920 transitions. [2024-11-28 04:28:12,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 04:28:12,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:12,395 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:12,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:28:12,396 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:12,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:12,396 INFO L85 PathProgramCache]: Analyzing trace with hash 957726943, now seen corresponding path program 1 times [2024-11-28 04:28:12,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:12,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326405735] [2024-11-28 04:28:12,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:12,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:12,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:12,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:12,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326405735] [2024-11-28 04:28:12,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326405735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:12,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:12,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:28:12,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700391621] [2024-11-28 04:28:12,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:12,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:28:12,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:12,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:28:12,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:28:12,560 INFO L87 Difference]: Start difference. First operand 566 states and 920 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:28:12,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:12,662 INFO L93 Difference]: Finished difference Result 1080 states and 1772 transitions. [2024-11-28 04:28:12,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:28:12,663 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2024-11-28 04:28:12,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:12,669 INFO L225 Difference]: With dead ends: 1080 [2024-11-28 04:28:12,669 INFO L226 Difference]: Without dead ends: 545 [2024-11-28 04:28:12,672 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 04:28:12,673 INFO L435 NwaCegarLoop]: 909 mSDtfsCounter, 84 mSDsluCounter, 4472 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5381 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:12,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5381 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:28:12,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-11-28 04:28:12,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2024-11-28 04:28:12,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 422 states have (on average 1.646919431279621) internal successors, (695), 443 states have internal predecessors, (695), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 04:28:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 886 transitions. [2024-11-28 04:28:12,698 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 886 transitions. Word has length 69 [2024-11-28 04:28:12,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:12,699 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 886 transitions. [2024-11-28 04:28:12,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:28:12,699 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 886 transitions. [2024-11-28 04:28:12,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 04:28:12,700 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:12,701 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:12,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:28:12,701 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:12,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:12,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1068856496, now seen corresponding path program 1 times [2024-11-28 04:28:12,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:12,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531606042] [2024-11-28 04:28:12,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:12,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:12,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:12,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:12,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531606042] [2024-11-28 04:28:12,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531606042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:12,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:12,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:28:12,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779888747] [2024-11-28 04:28:12,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:12,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:28:12,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:12,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:28:12,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:28:12,869 INFO L87 Difference]: Start difference. First operand 545 states and 886 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:12,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:12,972 INFO L93 Difference]: Finished difference Result 1059 states and 1738 transitions. [2024-11-28 04:28:12,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:28:12,972 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2024-11-28 04:28:12,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:12,977 INFO L225 Difference]: With dead ends: 1059 [2024-11-28 04:28:12,977 INFO L226 Difference]: Without dead ends: 545 [2024-11-28 04:28:12,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:28:12,981 INFO L435 NwaCegarLoop]: 869 mSDtfsCounter, 17 mSDsluCounter, 3467 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4336 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:12,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4336 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:28:12,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-11-28 04:28:13,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2024-11-28 04:28:13,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 422 states have (on average 1.6445497630331753) internal successors, (694), 443 states have internal predecessors, (694), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 04:28:13,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 885 transitions. [2024-11-28 04:28:13,007 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 885 transitions. Word has length 70 [2024-11-28 04:28:13,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:13,008 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 885 transitions. [2024-11-28 04:28:13,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:13,008 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 885 transitions. [2024-11-28 04:28:13,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-28 04:28:13,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:13,010 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:13,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:28:13,010 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:13,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:13,010 INFO L85 PathProgramCache]: Analyzing trace with hash -877300454, now seen corresponding path program 1 times [2024-11-28 04:28:13,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:13,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797088427] [2024-11-28 04:28:13,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:13,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:13,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:13,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:13,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:13,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797088427] [2024-11-28 04:28:13,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797088427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:13,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:13,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:28:13,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116312317] [2024-11-28 04:28:13,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:13,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:28:13,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:13,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:28:13,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:28:13,158 INFO L87 Difference]: Start difference. First operand 545 states and 885 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:13,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:13,251 INFO L93 Difference]: Finished difference Result 1059 states and 1737 transitions. [2024-11-28 04:28:13,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:28:13,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2024-11-28 04:28:13,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:13,257 INFO L225 Difference]: With dead ends: 1059 [2024-11-28 04:28:13,257 INFO L226 Difference]: Without dead ends: 545 [2024-11-28 04:28:13,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:28:13,260 INFO L435 NwaCegarLoop]: 869 mSDtfsCounter, 16 mSDsluCounter, 3467 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4336 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:13,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4336 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:28:13,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-11-28 04:28:13,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2024-11-28 04:28:13,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 422 states have (on average 1.6421800947867298) internal successors, (693), 443 states have internal predecessors, (693), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 04:28:13,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 884 transitions. [2024-11-28 04:28:13,286 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 884 transitions. Word has length 71 [2024-11-28 04:28:13,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:13,287 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 884 transitions. [2024-11-28 04:28:13,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:13,287 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 884 transitions. [2024-11-28 04:28:13,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 04:28:13,289 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:13,289 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:13,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:28:13,289 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:13,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:13,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1386335787, now seen corresponding path program 1 times [2024-11-28 04:28:13,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:13,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572159728] [2024-11-28 04:28:13,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:13,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:13,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:13,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:13,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572159728] [2024-11-28 04:28:13,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572159728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:13,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:13,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:28:13,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465554440] [2024-11-28 04:28:13,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:13,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:13,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:13,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:13,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:13,421 INFO L87 Difference]: Start difference. First operand 545 states and 884 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:13,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:13,475 INFO L93 Difference]: Finished difference Result 1053 states and 1725 transitions. [2024-11-28 04:28:13,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:13,476 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2024-11-28 04:28:13,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:13,481 INFO L225 Difference]: With dead ends: 1053 [2024-11-28 04:28:13,482 INFO L226 Difference]: Without dead ends: 545 [2024-11-28 04:28:13,484 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 04:28:13,485 INFO L435 NwaCegarLoop]: 872 mSDtfsCounter, 5 mSDsluCounter, 1734 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2606 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:13,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2606 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:28:13,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-11-28 04:28:13,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2024-11-28 04:28:13,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 422 states have (on average 1.6398104265402844) internal successors, (692), 443 states have internal predecessors, (692), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 04:28:13,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 883 transitions. [2024-11-28 04:28:13,511 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 883 transitions. Word has length 72 [2024-11-28 04:28:13,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:13,513 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 883 transitions. [2024-11-28 04:28:13,513 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:13,513 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 883 transitions. [2024-11-28 04:28:13,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 04:28:13,516 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:13,516 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:13,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:28:13,516 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:13,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:13,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1544871419, now seen corresponding path program 1 times [2024-11-28 04:28:13,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:13,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320640811] [2024-11-28 04:28:13,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:13,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:13,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:13,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:13,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320640811] [2024-11-28 04:28:13,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320640811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:13,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:13,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:28:13,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639141187] [2024-11-28 04:28:13,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:13,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:28:13,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:13,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:28:13,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:28:13,819 INFO L87 Difference]: Start difference. First operand 545 states and 883 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 6 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-28 04:28:16,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:16,926 INFO L93 Difference]: Finished difference Result 1684 states and 2790 transitions. [2024-11-28 04:28:16,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:28:16,927 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 6 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 73 [2024-11-28 04:28:16,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:16,938 INFO L225 Difference]: With dead ends: 1684 [2024-11-28 04:28:16,939 INFO L226 Difference]: Without dead ends: 1184 [2024-11-28 04:28:16,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:28:16,945 INFO L435 NwaCegarLoop]: 383 mSDtfsCounter, 3268 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 784 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3335 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 2635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 784 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:16,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3335 Valid, 1035 Invalid, 2635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [784 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 04:28:16,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2024-11-28 04:28:17,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1062. [2024-11-28 04:28:17,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 827 states have (on average 1.6590084643288996) internal successors, (1372), 857 states have internal predecessors, (1372), 190 states have call successors, (190), 43 states have call predecessors, (190), 44 states have return successors, (192), 174 states have call predecessors, (192), 185 states have call successors, (192) [2024-11-28 04:28:17,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1754 transitions. [2024-11-28 04:28:17,027 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1754 transitions. Word has length 73 [2024-11-28 04:28:17,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:17,028 INFO L471 AbstractCegarLoop]: Abstraction has 1062 states and 1754 transitions. [2024-11-28 04:28:17,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 6 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-28 04:28:17,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1754 transitions. [2024-11-28 04:28:17,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 04:28:17,034 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:17,034 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:17,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:28:17,034 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:17,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:17,035 INFO L85 PathProgramCache]: Analyzing trace with hash -166158167, now seen corresponding path program 1 times [2024-11-28 04:28:17,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:17,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101259019] [2024-11-28 04:28:17,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:17,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:17,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:17,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:17,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101259019] [2024-11-28 04:28:17,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101259019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:17,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:17,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:28:17,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969528272] [2024-11-28 04:28:17,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:17,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:28:17,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:17,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:28:17,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:28:17,572 INFO L87 Difference]: Start difference. First operand 1062 states and 1754 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 5 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 04:28:19,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:19,892 INFO L93 Difference]: Finished difference Result 2087 states and 3510 transitions. [2024-11-28 04:28:19,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:28:19,893 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 5 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) Word has length 112 [2024-11-28 04:28:19,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:19,902 INFO L225 Difference]: With dead ends: 2087 [2024-11-28 04:28:19,902 INFO L226 Difference]: Without dead ends: 1070 [2024-11-28 04:28:19,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:28:19,909 INFO L435 NwaCegarLoop]: 384 mSDtfsCounter, 1345 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 2827 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 3227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 2827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:19,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1345 Valid, 1606 Invalid, 3227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 2827 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 04:28:19,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2024-11-28 04:28:19,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1070. [2024-11-28 04:28:19,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 833 states have (on average 1.6542617046818728) internal successors, (1378), 863 states have internal predecessors, (1378), 190 states have call successors, (190), 43 states have call predecessors, (190), 46 states have return successors, (224), 176 states have call predecessors, (224), 185 states have call successors, (224) [2024-11-28 04:28:20,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1792 transitions. [2024-11-28 04:28:20,007 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1792 transitions. Word has length 112 [2024-11-28 04:28:20,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:20,008 INFO L471 AbstractCegarLoop]: Abstraction has 1070 states and 1792 transitions. [2024-11-28 04:28:20,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 5 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 04:28:20,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1792 transitions. [2024-11-28 04:28:20,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-28 04:28:20,014 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:20,014 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:20,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:28:20,014 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:20,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:20,015 INFO L85 PathProgramCache]: Analyzing trace with hash -781510245, now seen corresponding path program 1 times [2024-11-28 04:28:20,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:20,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251823995] [2024-11-28 04:28:20,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:20,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:20,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:20,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:20,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251823995] [2024-11-28 04:28:20,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251823995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:20,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:20,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:28:20,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382116643] [2024-11-28 04:28:20,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:20,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:28:20,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:20,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:28:20,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:28:20,370 INFO L87 Difference]: Start difference. First operand 1070 states and 1792 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 04:28:25,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:25,148 INFO L93 Difference]: Finished difference Result 3959 states and 6801 transitions. [2024-11-28 04:28:25,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:28:25,149 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 113 [2024-11-28 04:28:25,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:25,175 INFO L225 Difference]: With dead ends: 3959 [2024-11-28 04:28:25,175 INFO L226 Difference]: Without dead ends: 2934 [2024-11-28 04:28:25,183 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:28:25,184 INFO L435 NwaCegarLoop]: 615 mSDtfsCounter, 2437 mSDsluCounter, 2012 mSDsCounter, 0 mSdLazyCounter, 5107 mSolverCounterSat, 627 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2515 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 5734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 627 IncrementalHoareTripleChecker+Valid, 5107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:25,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2515 Valid, 2627 Invalid, 5734 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [627 Valid, 5107 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 04:28:25,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2024-11-28 04:28:25,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 2824. [2024-11-28 04:28:25,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2824 states, 2190 states have (on average 1.6515981735159817) internal successors, (3617), 2270 states have internal predecessors, (3617), 506 states have call successors, (506), 117 states have call predecessors, (506), 127 states have return successors, (581), 471 states have call predecessors, (581), 501 states have call successors, (581) [2024-11-28 04:28:25,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2824 states to 2824 states and 4704 transitions. [2024-11-28 04:28:25,455 INFO L78 Accepts]: Start accepts. Automaton has 2824 states and 4704 transitions. Word has length 113 [2024-11-28 04:28:25,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:25,458 INFO L471 AbstractCegarLoop]: Abstraction has 2824 states and 4704 transitions. [2024-11-28 04:28:25,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 04:28:25,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2824 states and 4704 transitions. [2024-11-28 04:28:25,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-28 04:28:25,462 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:25,462 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:25,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:28:25,462 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:25,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:25,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1878907767, now seen corresponding path program 1 times [2024-11-28 04:28:25,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:25,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193077511] [2024-11-28 04:28:25,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:25,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:25,702 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 04:28:25,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:25,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193077511] [2024-11-28 04:28:25,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193077511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:25,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:25,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:28:25,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117255793] [2024-11-28 04:28:25,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:25,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:28:25,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:25,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:28:25,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:28:25,705 INFO L87 Difference]: Start difference. First operand 2824 states and 4704 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 6 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:28:30,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:30,236 INFO L93 Difference]: Finished difference Result 8233 states and 13964 transitions. [2024-11-28 04:28:30,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:28:30,237 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 6 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 115 [2024-11-28 04:28:30,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:30,296 INFO L225 Difference]: With dead ends: 8233 [2024-11-28 04:28:30,296 INFO L226 Difference]: Without dead ends: 5456 [2024-11-28 04:28:30,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:28:30,316 INFO L435 NwaCegarLoop]: 901 mSDtfsCounter, 3465 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 3474 mSolverCounterSat, 1068 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3501 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 4542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1068 IncrementalHoareTripleChecker+Valid, 3474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:30,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3501 Valid, 2218 Invalid, 4542 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1068 Valid, 3474 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-28 04:28:30,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5456 states. [2024-11-28 04:28:30,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5456 to 4789. [2024-11-28 04:28:30,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4789 states, 3583 states have (on average 1.6368964554842311) internal successors, (5865), 3765 states have internal predecessors, (5865), 995 states have call successors, (995), 181 states have call predecessors, (995), 210 states have return successors, (1176), 962 states have call predecessors, (1176), 990 states have call successors, (1176) [2024-11-28 04:28:30,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4789 states to 4789 states and 8036 transitions. [2024-11-28 04:28:30,801 INFO L78 Accepts]: Start accepts. Automaton has 4789 states and 8036 transitions. Word has length 115 [2024-11-28 04:28:30,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:30,801 INFO L471 AbstractCegarLoop]: Abstraction has 4789 states and 8036 transitions. [2024-11-28 04:28:30,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 6 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:28:30,802 INFO L276 IsEmpty]: Start isEmpty. Operand 4789 states and 8036 transitions. [2024-11-28 04:28:30,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-28 04:28:30,806 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:30,806 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:30,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:28:30,807 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:30,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:30,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1438865760, now seen corresponding path program 1 times [2024-11-28 04:28:30,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:30,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536349707] [2024-11-28 04:28:30,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:30,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:31,357 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 04:28:31,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:31,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536349707] [2024-11-28 04:28:31,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536349707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:31,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:31,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:28:31,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319423049] [2024-11-28 04:28:31,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:31,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:28:31,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:31,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:28:31,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:28:31,361 INFO L87 Difference]: Start difference. First operand 4789 states and 8036 transitions. Second operand has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 7 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 04:28:39,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:39,114 INFO L93 Difference]: Finished difference Result 15093 states and 25274 transitions. [2024-11-28 04:28:39,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 04:28:39,114 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 7 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 115 [2024-11-28 04:28:39,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:39,208 INFO L225 Difference]: With dead ends: 15093 [2024-11-28 04:28:39,208 INFO L226 Difference]: Without dead ends: 10343 [2024-11-28 04:28:39,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=157, Invalid=899, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 04:28:39,244 INFO L435 NwaCegarLoop]: 762 mSDtfsCounter, 3020 mSDsluCounter, 6393 mSDsCounter, 0 mSdLazyCounter, 11932 mSolverCounterSat, 1019 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3098 SdHoareTripleChecker+Valid, 7155 SdHoareTripleChecker+Invalid, 12951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1019 IncrementalHoareTripleChecker+Valid, 11932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:39,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3098 Valid, 7155 Invalid, 12951 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1019 Valid, 11932 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-28 04:28:39,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10343 states. [2024-11-28 04:28:40,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10343 to 10107. [2024-11-28 04:28:40,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10107 states, 7317 states have (on average 1.5957359573595735) internal successors, (11676), 7728 states have internal predecessors, (11676), 2357 states have call successors, (2357), 360 states have call predecessors, (2357), 432 states have return successors, (2779), 2291 states have call predecessors, (2779), 2352 states have call successors, (2779) [2024-11-28 04:28:40,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10107 states to 10107 states and 16812 transitions. [2024-11-28 04:28:40,400 INFO L78 Accepts]: Start accepts. Automaton has 10107 states and 16812 transitions. Word has length 115 [2024-11-28 04:28:40,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:40,402 INFO L471 AbstractCegarLoop]: Abstraction has 10107 states and 16812 transitions. [2024-11-28 04:28:40,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 7 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 04:28:40,404 INFO L276 IsEmpty]: Start isEmpty. Operand 10107 states and 16812 transitions. [2024-11-28 04:28:40,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-28 04:28:40,407 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:40,408 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:40,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 04:28:40,408 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:40,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:40,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1776530755, now seen corresponding path program 1 times [2024-11-28 04:28:40,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:40,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137699366] [2024-11-28 04:28:40,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:40,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:40,653 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 04:28:40,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:40,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137699366] [2024-11-28 04:28:40,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137699366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:40,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:40,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:28:40,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242982603] [2024-11-28 04:28:40,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:40,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:28:40,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:40,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:28:40,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:28:40,656 INFO L87 Difference]: Start difference. First operand 10107 states and 16812 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 6 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:28:45,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:45,802 INFO L93 Difference]: Finished difference Result 34704 states and 59491 transitions. [2024-11-28 04:28:45,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:28:45,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 6 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 116 [2024-11-28 04:28:45,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:46,011 INFO L225 Difference]: With dead ends: 34704 [2024-11-28 04:28:46,012 INFO L226 Difference]: Without dead ends: 24645 [2024-11-28 04:28:46,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:28:46,079 INFO L435 NwaCegarLoop]: 900 mSDtfsCounter, 3478 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 3437 mSolverCounterSat, 1091 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3515 SdHoareTripleChecker+Valid, 2231 SdHoareTripleChecker+Invalid, 4528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1091 IncrementalHoareTripleChecker+Valid, 3437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:46,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3515 Valid, 2231 Invalid, 4528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1091 Valid, 3437 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-28 04:28:46,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24645 states. [2024-11-28 04:28:49,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24645 to 21736. [2024-11-28 04:28:49,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21736 states, 14889 states have (on average 1.5779434481832224) internal successors, (23494), 15965 states have internal predecessors, (23494), 6018 states have call successors, (6018), 608 states have call predecessors, (6018), 828 states have return successors, (7366), 6030 states have call predecessors, (7366), 6013 states have call successors, (7366) [2024-11-28 04:28:49,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21736 states to 21736 states and 36878 transitions. [2024-11-28 04:28:49,244 INFO L78 Accepts]: Start accepts. Automaton has 21736 states and 36878 transitions. Word has length 116 [2024-11-28 04:28:49,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:49,245 INFO L471 AbstractCegarLoop]: Abstraction has 21736 states and 36878 transitions. [2024-11-28 04:28:49,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 6 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:28:49,245 INFO L276 IsEmpty]: Start isEmpty. Operand 21736 states and 36878 transitions. [2024-11-28 04:28:49,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-28 04:28:49,250 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:49,250 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:49,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 04:28:49,250 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:49,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:49,252 INFO L85 PathProgramCache]: Analyzing trace with hash -224612572, now seen corresponding path program 1 times [2024-11-28 04:28:49,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:49,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887793882] [2024-11-28 04:28:49,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:49,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:49,539 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 04:28:49,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:49,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887793882] [2024-11-28 04:28:49,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887793882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:49,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:49,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:28:49,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386256685] [2024-11-28 04:28:49,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:49,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:28:49,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:49,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:28:49,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:28:49,541 INFO L87 Difference]: Start difference. First operand 21736 states and 36878 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 6 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:28:59,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:59,538 INFO L93 Difference]: Finished difference Result 86679 states and 152116 transitions. [2024-11-28 04:28:59,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:28:59,538 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 6 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 117 [2024-11-28 04:28:59,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:00,171 INFO L225 Difference]: With dead ends: 86679 [2024-11-28 04:29:00,171 INFO L226 Difference]: Without dead ends: 64993 [2024-11-28 04:29:00,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:29:00,312 INFO L435 NwaCegarLoop]: 906 mSDtfsCounter, 3490 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 3446 mSolverCounterSat, 1093 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3528 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 4539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1093 IncrementalHoareTripleChecker+Valid, 3446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:00,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3528 Valid, 2252 Invalid, 4539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1093 Valid, 3446 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-28 04:29:00,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64993 states. [2024-11-28 04:29:07,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64993 to 57495. [2024-11-28 04:29:07,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57495 states, 37311 states have (on average 1.565516871700035) internal successors, (58411), 40444 states have internal predecessors, (58411), 18293 states have call successors, (18293), 1104 states have call predecessors, (18293), 1890 states have return successors, (23547), 18725 states have call predecessors, (23547), 18288 states have call successors, (23547) [2024-11-28 04:29:07,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57495 states to 57495 states and 100251 transitions. [2024-11-28 04:29:07,885 INFO L78 Accepts]: Start accepts. Automaton has 57495 states and 100251 transitions. Word has length 117 [2024-11-28 04:29:07,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:07,885 INFO L471 AbstractCegarLoop]: Abstraction has 57495 states and 100251 transitions. [2024-11-28 04:29:07,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 6 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:29:07,886 INFO L276 IsEmpty]: Start isEmpty. Operand 57495 states and 100251 transitions. [2024-11-28 04:29:07,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 04:29:07,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:07,889 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:07,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 04:29:07,890 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:07,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:07,890 INFO L85 PathProgramCache]: Analyzing trace with hash -981558344, now seen corresponding path program 1 times [2024-11-28 04:29:07,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:07,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143914720] [2024-11-28 04:29:07,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:07,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:07,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:08,109 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 04:29:08,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:08,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143914720] [2024-11-28 04:29:08,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143914720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:08,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:08,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:29:08,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318769238] [2024-11-28 04:29:08,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:08,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:29:08,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:08,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:29:08,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:29:08,111 INFO L87 Difference]: Start difference. First operand 57495 states and 100251 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 6 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13)