./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec9_product11.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_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/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_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/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_ca0f4797-f709-4180-9574-b03119fbc9f9/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 2156ba1e79a86c856553f139302f2b9940a34efa4e31eb139d6bea893c29b00d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:39:21,793 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:39:21,931 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:39:21,939 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:39:21,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:39:21,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:39:21,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:39:21,987 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:39:21,988 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:39:21,988 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:39:21,988 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:39:21,988 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:39:21,989 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:39:21,989 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:39:21,989 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:39:21,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:39:21,990 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:39:21,990 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:39:21,991 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:39:21,991 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:39:21,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:39:21,991 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:39:21,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:39:21,991 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:39:21,991 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:39:21,991 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:39:21,992 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:39:21,992 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:39:21,992 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:39:21,992 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:39:21,992 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:39:21,992 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:39:21,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:39:21,993 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:39:21,993 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:39:21,993 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:39:21,993 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:39:21,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:39:21,993 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:39:21,995 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:39:21,995 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:39:21,996 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:39:21,996 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:39:21,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:39:21,996 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:39:21,996 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:39:21,996 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:39:21,997 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:39:21,997 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_ca0f4797-f709-4180-9574-b03119fbc9f9/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 -> 2156ba1e79a86c856553f139302f2b9940a34efa4e31eb139d6bea893c29b00d [2024-11-28 04:39:22,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:39:22,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:39:22,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:39:22,424 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:39:22,425 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:39:22,426 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c [2024-11-28 04:39:26,176 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/data/f42aca6dc/1f87b047ab4a47189011b83b117c5aa7/FLAG2b066059a [2024-11-28 04:39:26,786 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:39:26,791 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c [2024-11-28 04:39:26,812 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/data/f42aca6dc/1f87b047ab4a47189011b83b117c5aa7/FLAG2b066059a [2024-11-28 04:39:26,829 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/data/f42aca6dc/1f87b047ab4a47189011b83b117c5aa7 [2024-11-28 04:39:26,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:39:26,834 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:39:26,835 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:39:26,835 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:39:26,840 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:39:26,841 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:26" (1/1) ... [2024-11-28 04:39:26,843 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa2e154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:26, skipping insertion in model container [2024-11-28 04:39:26,843 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:26" (1/1) ... [2024-11-28 04:39:26,907 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:39:27,668 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_ca0f4797-f709-4180-9574-b03119fbc9f9/sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c[71954,71967] [2024-11-28 04:39:27,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:39:27,697 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:39:27,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [48] [2024-11-28 04:39:27,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [148] [2024-11-28 04:39:27,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [505] [2024-11-28 04:39:27,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [871] [2024-11-28 04:39:27,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1034] [2024-11-28 04:39:27,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1069] [2024-11-28 04:39:27,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1189] [2024-11-28 04:39:27,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1201] [2024-11-28 04:39:27,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2729] [2024-11-28 04:39:27,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3390] [2024-11-28 04:39:27,872 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_ca0f4797-f709-4180-9574-b03119fbc9f9/sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c[71954,71967] [2024-11-28 04:39:27,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:39:27,906 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:39:27,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:27 WrapperNode [2024-11-28 04:39:27,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:39:27,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:39:27,908 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:39:27,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:39:27,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:27" (1/1) ... [2024-11-28 04:39:27,959 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:27" (1/1) ... [2024-11-28 04:39:28,022 INFO L138 Inliner]: procedures = 93, calls = 335, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 1086 [2024-11-28 04:39:28,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:39:28,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:39:28,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:39:28,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:39:28,035 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:27" (1/1) ... [2024-11-28 04:39:28,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:27" (1/1) ... [2024-11-28 04:39:28,043 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:27" (1/1) ... [2024-11-28 04:39:28,092 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-28 04:39:28,092 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:27" (1/1) ... [2024-11-28 04:39:28,092 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:27" (1/1) ... [2024-11-28 04:39:28,134 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:27" (1/1) ... [2024-11-28 04:39:28,136 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:27" (1/1) ... [2024-11-28 04:39:28,152 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:27" (1/1) ... [2024-11-28 04:39:28,163 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:27" (1/1) ... [2024-11-28 04:39:28,170 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:27" (1/1) ... [2024-11-28 04:39:28,192 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:39:28,193 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:39:28,193 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:39:28,193 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:39:28,194 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:27" (1/1) ... [2024-11-28 04:39:28,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:39:28,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:39:28,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:39:28,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:39:28,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:39:28,296 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-28 04:39:28,297 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-28 04:39:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-28 04:39:28,297 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-28 04:39:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-28 04:39:28,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-28 04:39:28,298 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-28 04:39:28,298 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-28 04:39:28,298 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-28 04:39:28,298 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-28 04:39:28,298 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-28 04:39:28,298 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-28 04:39:28,299 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-28 04:39:28,299 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-28 04:39:28,299 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-28 04:39:28,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-28 04:39:28,299 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-28 04:39:28,299 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-28 04:39:28,299 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-28 04:39:28,300 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-28 04:39:28,300 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-28 04:39:28,300 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-28 04:39:28,300 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-28 04:39:28,300 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-28 04:39:28,300 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-28 04:39:28,300 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-28 04:39:28,301 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-11-28 04:39:28,301 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-11-28 04:39:28,301 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-28 04:39:28,301 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-28 04:39:28,301 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-28 04:39:28,301 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-28 04:39:28,301 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-28 04:39:28,302 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-28 04:39:28,302 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-28 04:39:28,302 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-28 04:39:28,302 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2024-11-28 04:39:28,302 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2024-11-28 04:39:28,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:39:28,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:39:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:39:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:39:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 04:39:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 04:39:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 04:39:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 04:39:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 04:39:28,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-28 04:39:28,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-28 04:39:28,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-28 04:39:28,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-28 04:39:28,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-28 04:39:28,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-28 04:39:28,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-28 04:39:28,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-28 04:39:28,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-28 04:39:28,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-28 04:39:28,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-28 04:39:28,305 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-28 04:39:28,305 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-28 04:39:28,305 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-28 04:39:28,306 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-28 04:39:28,306 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-28 04:39:28,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-28 04:39:28,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:39:28,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:39:28,306 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-28 04:39:28,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-28 04:39:28,566 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:39:28,569 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:39:30,487 INFO L? ?]: Removed 437 outVars from TransFormulas that were not future-live. [2024-11-28 04:39:30,487 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:39:30,539 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:39:30,539 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:39:30,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:30 BoogieIcfgContainer [2024-11-28 04:39:30,540 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:39:30,546 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:39:30,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:39:30,556 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:39:30,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:39:26" (1/3) ... [2024-11-28 04:39:30,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785c3c53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:39:30, skipping insertion in model container [2024-11-28 04:39:30,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:27" (2/3) ... [2024-11-28 04:39:30,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785c3c53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:39:30, skipping insertion in model container [2024-11-28 04:39:30,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:30" (3/3) ... [2024-11-28 04:39:30,559 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product11.cil.c [2024-11-28 04:39:30,580 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:39:30,584 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec9_product11.cil.c that has 24 procedures, 544 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:39:30,681 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:39:30,701 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;@4e6d1a37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:39:30,702 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:39:30,712 INFO L276 IsEmpty]: Start isEmpty. Operand has 544 states, 428 states have (on average 1.7009345794392523) internal successors, (728), 449 states have internal predecessors, (728), 91 states have call successors, (91), 23 states have call predecessors, (91), 23 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-28 04:39:30,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-28 04:39:30,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:30,766 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:30,767 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:30,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:30,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1079933707, now seen corresponding path program 1 times [2024-11-28 04:39:30,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:30,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12638386] [2024-11-28 04:39:30,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:30,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:31,732 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:31,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:31,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12638386] [2024-11-28 04:39:31,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12638386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:31,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:31,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:39:31,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975582390] [2024-11-28 04:39:31,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:31,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:39:31,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:31,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:39:31,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:39:31,783 INFO L87 Difference]: Start difference. First operand has 544 states, 428 states have (on average 1.7009345794392523) internal successors, (728), 449 states have internal predecessors, (728), 91 states have call successors, (91), 23 states have call predecessors, (91), 23 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:32,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:32,041 INFO L93 Difference]: Finished difference Result 1068 states and 1795 transitions. [2024-11-28 04:39:32,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:39:32,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2024-11-28 04:39:32,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:32,074 INFO L225 Difference]: With dead ends: 1068 [2024-11-28 04:39:32,074 INFO L226 Difference]: Without dead ends: 536 [2024-11-28 04:39:32,082 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 04:39:32,085 INFO L435 NwaCegarLoop]: 889 mSDtfsCounter, 5 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2663 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 04:39:32,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2663 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:39:32,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-28 04:39:32,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-11-28 04:39:32,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 422 states have (on average 1.6966824644549763) internal successors, (716), 441 states have internal predecessors, (716), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 04:39:32,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 893 transitions. [2024-11-28 04:39:32,184 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 893 transitions. Word has length 104 [2024-11-28 04:39:32,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:32,184 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 893 transitions. [2024-11-28 04:39:32,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:32,185 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 893 transitions. [2024-11-28 04:39:32,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-28 04:39:32,193 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:32,193 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:32,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:39:32,193 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:32,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:32,194 INFO L85 PathProgramCache]: Analyzing trace with hash -15827200, now seen corresponding path program 1 times [2024-11-28 04:39:32,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:32,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635967572] [2024-11-28 04:39:32,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:32,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:32,595 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:32,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:32,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635967572] [2024-11-28 04:39:32,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635967572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:32,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:32,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:39:32,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419755371] [2024-11-28 04:39:32,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:32,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:39:32,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:32,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:39:32,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:39:32,600 INFO L87 Difference]: Start difference. First operand 536 states and 893 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:32,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:32,715 INFO L93 Difference]: Finished difference Result 1054 states and 1763 transitions. [2024-11-28 04:39:32,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:39:32,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 106 [2024-11-28 04:39:32,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:32,727 INFO L225 Difference]: With dead ends: 1054 [2024-11-28 04:39:32,727 INFO L226 Difference]: Without dead ends: 536 [2024-11-28 04:39:32,730 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 04:39:32,733 INFO L435 NwaCegarLoop]: 882 mSDtfsCounter, 4 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2642 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 04:39:32,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2642 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:39:32,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-28 04:39:32,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-11-28 04:39:32,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 422 states have (on average 1.6943127962085307) internal successors, (715), 441 states have internal predecessors, (715), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 04:39:32,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 892 transitions. [2024-11-28 04:39:32,803 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 892 transitions. Word has length 106 [2024-11-28 04:39:32,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:32,804 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 892 transitions. [2024-11-28 04:39:32,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:32,805 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 892 transitions. [2024-11-28 04:39:32,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 04:39:32,816 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:32,816 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:32,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:39:32,817 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:32,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:32,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1732409852, now seen corresponding path program 1 times [2024-11-28 04:39:32,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:32,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700840915] [2024-11-28 04:39:32,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:32,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:33,179 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:33,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:33,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700840915] [2024-11-28 04:39:33,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700840915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:33,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:33,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:39:33,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817546464] [2024-11-28 04:39:33,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:33,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:39:33,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:33,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:39:33,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:39:33,184 INFO L87 Difference]: Start difference. First operand 536 states and 892 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:33,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:33,280 INFO L93 Difference]: Finished difference Result 1054 states and 1762 transitions. [2024-11-28 04:39:33,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:39:33,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 107 [2024-11-28 04:39:33,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:33,290 INFO L225 Difference]: With dead ends: 1054 [2024-11-28 04:39:33,290 INFO L226 Difference]: Without dead ends: 536 [2024-11-28 04:39:33,294 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 04:39:33,295 INFO L435 NwaCegarLoop]: 882 mSDtfsCounter, 3 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2642 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 04:39:33,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2642 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:39:33,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-28 04:39:33,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-11-28 04:39:33,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 422 states have (on average 1.6919431279620853) internal successors, (714), 441 states have internal predecessors, (714), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 04:39:33,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 891 transitions. [2024-11-28 04:39:33,346 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 891 transitions. Word has length 107 [2024-11-28 04:39:33,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:33,346 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 891 transitions. [2024-11-28 04:39:33,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:33,347 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 891 transitions. [2024-11-28 04:39:33,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 04:39:33,356 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:33,356 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:33,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:39:33,356 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:33,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:33,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1673834364, now seen corresponding path program 1 times [2024-11-28 04:39:33,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:33,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965684857] [2024-11-28 04:39:33,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:33,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:33,663 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:33,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:33,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965684857] [2024-11-28 04:39:33,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965684857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:33,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:33,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:39:33,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537470320] [2024-11-28 04:39:33,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:33,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:39:33,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:33,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:39:33,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:39:33,668 INFO L87 Difference]: Start difference. First operand 536 states and 891 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:33,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:33,737 INFO L93 Difference]: Finished difference Result 1054 states and 1761 transitions. [2024-11-28 04:39:33,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:39:33,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2024-11-28 04:39:33,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:33,745 INFO L225 Difference]: With dead ends: 1054 [2024-11-28 04:39:33,745 INFO L226 Difference]: Without dead ends: 536 [2024-11-28 04:39:33,749 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 04:39:33,751 INFO L435 NwaCegarLoop]: 882 mSDtfsCounter, 2 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2642 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 04:39:33,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2642 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:39:33,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-28 04:39:33,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-11-28 04:39:33,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 422 states have (on average 1.6895734597156398) internal successors, (713), 441 states have internal predecessors, (713), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 04:39:33,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 890 transitions. [2024-11-28 04:39:33,798 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 890 transitions. Word has length 108 [2024-11-28 04:39:33,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:33,798 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 890 transitions. [2024-11-28 04:39:33,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:33,799 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 890 transitions. [2024-11-28 04:39:33,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 04:39:33,806 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:33,807 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:33,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:39:33,809 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:33,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:33,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1660240640, now seen corresponding path program 1 times [2024-11-28 04:39:33,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:33,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792689705] [2024-11-28 04:39:33,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:33,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:34,074 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:34,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:34,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792689705] [2024-11-28 04:39:34,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792689705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:34,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:34,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:39:34,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16470227] [2024-11-28 04:39:34,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:34,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:39:34,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:34,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:39:34,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:39:34,079 INFO L87 Difference]: Start difference. First operand 536 states and 890 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:34,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:34,151 INFO L93 Difference]: Finished difference Result 1054 states and 1760 transitions. [2024-11-28 04:39:34,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:39:34,152 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2024-11-28 04:39:34,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:34,159 INFO L225 Difference]: With dead ends: 1054 [2024-11-28 04:39:34,159 INFO L226 Difference]: Without dead ends: 536 [2024-11-28 04:39:34,162 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 04:39:34,164 INFO L435 NwaCegarLoop]: 882 mSDtfsCounter, 1 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2642 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 04:39:34,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2642 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:39:34,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-28 04:39:34,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-11-28 04:39:34,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 422 states have (on average 1.6872037914691944) internal successors, (712), 441 states have internal predecessors, (712), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 04:39:34,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 889 transitions. [2024-11-28 04:39:34,216 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 889 transitions. Word has length 109 [2024-11-28 04:39:34,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:34,216 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 889 transitions. [2024-11-28 04:39:34,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:34,217 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 889 transitions. [2024-11-28 04:39:34,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 04:39:34,222 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:34,223 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:34,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:39:34,226 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:34,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:34,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1289114120, now seen corresponding path program 1 times [2024-11-28 04:39:34,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:34,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127319375] [2024-11-28 04:39:34,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:34,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:34,619 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:34,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:34,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127319375] [2024-11-28 04:39:34,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127319375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:34,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:34,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:39:34,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978266207] [2024-11-28 04:39:34,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:34,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:39:34,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:34,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:39:34,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:39:34,623 INFO L87 Difference]: Start difference. First operand 536 states and 889 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 04:39:34,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:34,801 INFO L93 Difference]: Finished difference Result 1020 states and 1692 transitions. [2024-11-28 04:39:34,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:39:34,802 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2024-11-28 04:39:34,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:34,810 INFO L225 Difference]: With dead ends: 1020 [2024-11-28 04:39:34,810 INFO L226 Difference]: Without dead ends: 551 [2024-11-28 04:39:34,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:39:34,814 INFO L435 NwaCegarLoop]: 879 mSDtfsCounter, 91 mSDsluCounter, 4314 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5193 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 04:39:34,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5193 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:39:34,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-28 04:39:34,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 549. [2024-11-28 04:39:34,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 432 states have (on average 1.6828703703703705) internal successors, (727), 453 states have internal predecessors, (727), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (89), 85 states have call predecessors, (89), 87 states have call successors, (89) [2024-11-28 04:39:34,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 908 transitions. [2024-11-28 04:39:34,865 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 908 transitions. Word has length 110 [2024-11-28 04:39:34,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:34,868 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 908 transitions. [2024-11-28 04:39:34,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 04:39:34,868 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 908 transitions. [2024-11-28 04:39:34,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 04:39:34,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:34,878 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:34,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:39:34,879 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:34,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:34,879 INFO L85 PathProgramCache]: Analyzing trace with hash 847359625, now seen corresponding path program 1 times [2024-11-28 04:39:34,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:34,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466315524] [2024-11-28 04:39:34,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:34,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:35,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:35,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466315524] [2024-11-28 04:39:35,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466315524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:35,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:35,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:39:35,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225107452] [2024-11-28 04:39:35,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:35,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:39:35,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:35,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:39:35,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:39:35,079 INFO L87 Difference]: Start difference. First operand 549 states and 908 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:35,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:35,154 INFO L93 Difference]: Finished difference Result 1072 states and 1786 transitions. [2024-11-28 04:39:35,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:39:35,156 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 110 [2024-11-28 04:39:35,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:35,162 INFO L225 Difference]: With dead ends: 1072 [2024-11-28 04:39:35,163 INFO L226 Difference]: Without dead ends: 530 [2024-11-28 04:39:35,169 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 04:39:35,170 INFO L435 NwaCegarLoop]: 883 mSDtfsCounter, 0 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2644 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 04:39:35,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2644 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:39:35,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-28 04:39:35,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2024-11-28 04:39:35,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 416 states have (on average 1.6778846153846154) internal successors, (698), 435 states have internal predecessors, (698), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 04:39:35,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 875 transitions. [2024-11-28 04:39:35,203 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 875 transitions. Word has length 110 [2024-11-28 04:39:35,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:35,204 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 875 transitions. [2024-11-28 04:39:35,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:35,204 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 875 transitions. [2024-11-28 04:39:35,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 04:39:35,209 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:35,209 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:35,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:39:35,210 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:35,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:35,210 INFO L85 PathProgramCache]: Analyzing trace with hash 619999461, now seen corresponding path program 1 times [2024-11-28 04:39:35,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:35,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392875190] [2024-11-28 04:39:35,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:35,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:35,510 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:35,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:35,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392875190] [2024-11-28 04:39:35,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392875190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:35,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:35,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:39:35,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468009499] [2024-11-28 04:39:35,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:35,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:39:35,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:35,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:39:35,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:39:35,513 INFO L87 Difference]: Start difference. First operand 530 states and 875 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:35,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:35,869 INFO L93 Difference]: Finished difference Result 1017 states and 1684 transitions. [2024-11-28 04:39:35,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:39:35,870 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2024-11-28 04:39:35,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:35,878 INFO L225 Difference]: With dead ends: 1017 [2024-11-28 04:39:35,879 INFO L226 Difference]: Without dead ends: 539 [2024-11-28 04:39:35,882 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 04:39:35,883 INFO L435 NwaCegarLoop]: 832 mSDtfsCounter, 55 mSDsluCounter, 3299 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4131 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:35,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4131 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:39:35,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-11-28 04:39:35,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 530. [2024-11-28 04:39:35,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 416 states have (on average 1.6682692307692308) internal successors, (694), 435 states have internal predecessors, (694), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 04:39:35,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 871 transitions. [2024-11-28 04:39:35,923 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 871 transitions. Word has length 111 [2024-11-28 04:39:35,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:35,923 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 871 transitions. [2024-11-28 04:39:35,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:35,924 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 871 transitions. [2024-11-28 04:39:35,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 04:39:35,929 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:35,929 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:35,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:39:35,930 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:35,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:35,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1666748123, now seen corresponding path program 1 times [2024-11-28 04:39:35,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:35,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301351240] [2024-11-28 04:39:35,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:35,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:36,221 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:36,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:36,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301351240] [2024-11-28 04:39:36,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301351240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:36,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:36,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:39:36,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895312674] [2024-11-28 04:39:36,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:36,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:39:36,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:36,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:39:36,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:39:36,224 INFO L87 Difference]: Start difference. First operand 530 states and 871 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:36,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:36,564 INFO L93 Difference]: Finished difference Result 1017 states and 1680 transitions. [2024-11-28 04:39:36,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:39:36,565 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 112 [2024-11-28 04:39:36,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:36,570 INFO L225 Difference]: With dead ends: 1017 [2024-11-28 04:39:36,571 INFO L226 Difference]: Without dead ends: 539 [2024-11-28 04:39:36,573 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 04:39:36,575 INFO L435 NwaCegarLoop]: 832 mSDtfsCounter, 54 mSDsluCounter, 3299 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4131 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 04:39:36,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4131 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:39:36,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-11-28 04:39:36,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 530. [2024-11-28 04:39:36,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 416 states have (on average 1.6586538461538463) internal successors, (690), 435 states have internal predecessors, (690), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 04:39:36,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 867 transitions. [2024-11-28 04:39:36,604 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 867 transitions. Word has length 112 [2024-11-28 04:39:36,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:36,604 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 867 transitions. [2024-11-28 04:39:36,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:36,604 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 867 transitions. [2024-11-28 04:39:36,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-28 04:39:36,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:36,608 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:36,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:39:36,609 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:36,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:36,609 INFO L85 PathProgramCache]: Analyzing trace with hash 2004534784, now seen corresponding path program 1 times [2024-11-28 04:39:36,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:36,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147849077] [2024-11-28 04:39:36,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:36,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:36,873 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:36,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:36,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147849077] [2024-11-28 04:39:36,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147849077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:36,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:36,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:39:36,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173674516] [2024-11-28 04:39:36,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:36,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:39:36,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:36,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:39:36,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:39:36,876 INFO L87 Difference]: Start difference. First operand 530 states and 867 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:37,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:37,167 INFO L93 Difference]: Finished difference Result 1017 states and 1676 transitions. [2024-11-28 04:39:37,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:39:37,168 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 113 [2024-11-28 04:39:37,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:37,176 INFO L225 Difference]: With dead ends: 1017 [2024-11-28 04:39:37,176 INFO L226 Difference]: Without dead ends: 539 [2024-11-28 04:39:37,179 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 04:39:37,180 INFO L435 NwaCegarLoop]: 831 mSDtfsCounter, 53 mSDsluCounter, 3282 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4113 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 04:39:37,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4113 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:39:37,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-11-28 04:39:37,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 530. [2024-11-28 04:39:37,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 416 states have (on average 1.6490384615384615) internal successors, (686), 435 states have internal predecessors, (686), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 04:39:37,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 863 transitions. [2024-11-28 04:39:37,215 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 863 transitions. Word has length 113 [2024-11-28 04:39:37,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:37,215 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 863 transitions. [2024-11-28 04:39:37,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:37,216 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 863 transitions. [2024-11-28 04:39:37,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-28 04:39:37,220 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:37,221 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:37,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:39:37,221 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:37,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:37,222 INFO L85 PathProgramCache]: Analyzing trace with hash -318662272, now seen corresponding path program 1 times [2024-11-28 04:39:37,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:37,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509061956] [2024-11-28 04:39:37,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:37,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:37,499 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:37,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:37,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509061956] [2024-11-28 04:39:37,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509061956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:37,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:37,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:39:37,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705866275] [2024-11-28 04:39:37,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:37,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:39:37,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:37,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:39:37,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:39:37,502 INFO L87 Difference]: Start difference. First operand 530 states and 863 transitions. Second operand has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 04:39:37,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:37,630 INFO L93 Difference]: Finished difference Result 1008 states and 1658 transitions. [2024-11-28 04:39:37,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:39:37,631 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2024-11-28 04:39:37,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:37,639 INFO L225 Difference]: With dead ends: 1008 [2024-11-28 04:39:37,640 INFO L226 Difference]: Without dead ends: 509 [2024-11-28 04:39:37,643 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 04:39:37,645 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 84 mSDsluCounter, 4187 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5039 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 04:39:37,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5039 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:39:37,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-28 04:39:37,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-28 04:39:37,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 395 states have (on average 1.650632911392405) internal successors, (652), 414 states have internal predecessors, (652), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 04:39:37,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 829 transitions. [2024-11-28 04:39:37,675 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 829 transitions. Word has length 113 [2024-11-28 04:39:37,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:37,676 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 829 transitions. [2024-11-28 04:39:37,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 04:39:37,676 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 829 transitions. [2024-11-28 04:39:37,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-28 04:39:37,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:37,682 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:37,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:39:37,683 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:37,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:37,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1396201888, now seen corresponding path program 1 times [2024-11-28 04:39:37,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:37,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445781432] [2024-11-28 04:39:37,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:37,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:37,933 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:37,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:37,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445781432] [2024-11-28 04:39:37,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445781432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:37,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:37,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:39:37,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010650176] [2024-11-28 04:39:37,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:37,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:39:37,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:37,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:39:37,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:39:37,935 INFO L87 Difference]: Start difference. First operand 509 states and 829 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:38,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:38,075 INFO L93 Difference]: Finished difference Result 987 states and 1624 transitions. [2024-11-28 04:39:38,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:39:38,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2024-11-28 04:39:38,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:38,084 INFO L225 Difference]: With dead ends: 987 [2024-11-28 04:39:38,084 INFO L226 Difference]: Without dead ends: 509 [2024-11-28 04:39:38,087 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 04:39:38,088 INFO L435 NwaCegarLoop]: 812 mSDtfsCounter, 17 mSDsluCounter, 3239 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4051 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:38,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4051 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:39:38,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-28 04:39:38,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-28 04:39:38,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 395 states have (on average 1.6481012658227847) internal successors, (651), 414 states have internal predecessors, (651), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 04:39:38,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 828 transitions. [2024-11-28 04:39:38,126 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 828 transitions. Word has length 114 [2024-11-28 04:39:38,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:38,126 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 828 transitions. [2024-11-28 04:39:38,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:38,127 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 828 transitions. [2024-11-28 04:39:38,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-28 04:39:38,132 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:38,132 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:38,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:39:38,132 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:38,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:38,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1263765275, now seen corresponding path program 1 times [2024-11-28 04:39:38,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:38,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855326618] [2024-11-28 04:39:38,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:38,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:38,412 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:38,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:38,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855326618] [2024-11-28 04:39:38,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855326618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:38,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:38,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:39:38,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386386879] [2024-11-28 04:39:38,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:38,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:39:38,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:38,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:39:38,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:39:38,415 INFO L87 Difference]: Start difference. First operand 509 states and 828 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:38,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:38,541 INFO L93 Difference]: Finished difference Result 987 states and 1623 transitions. [2024-11-28 04:39:38,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:39:38,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2024-11-28 04:39:38,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:38,549 INFO L225 Difference]: With dead ends: 987 [2024-11-28 04:39:38,549 INFO L226 Difference]: Without dead ends: 509 [2024-11-28 04:39:38,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:39:38,553 INFO L435 NwaCegarLoop]: 812 mSDtfsCounter, 16 mSDsluCounter, 3239 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4051 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:38,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4051 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:39:38,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-28 04:39:38,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-28 04:39:38,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 395 states have (on average 1.6455696202531647) internal successors, (650), 414 states have internal predecessors, (650), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 04:39:38,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 827 transitions. [2024-11-28 04:39:38,585 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 827 transitions. Word has length 115 [2024-11-28 04:39:38,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:38,585 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 827 transitions. [2024-11-28 04:39:38,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:38,586 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 827 transitions. [2024-11-28 04:39:38,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-28 04:39:38,590 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:38,590 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:38,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:39:38,590 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:38,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:38,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1040636761, now seen corresponding path program 1 times [2024-11-28 04:39:38,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:38,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080106330] [2024-11-28 04:39:38,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:38,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:38,748 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:38,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:38,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080106330] [2024-11-28 04:39:38,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080106330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:38,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:38,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:39:38,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294207798] [2024-11-28 04:39:38,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:38,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:39:38,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:38,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:39:38,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:39:38,751 INFO L87 Difference]: Start difference. First operand 509 states and 827 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:38,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:38,814 INFO L93 Difference]: Finished difference Result 987 states and 1622 transitions. [2024-11-28 04:39:38,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:39:38,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2024-11-28 04:39:38,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:38,821 INFO L225 Difference]: With dead ends: 987 [2024-11-28 04:39:38,822 INFO L226 Difference]: Without dead ends: 509 [2024-11-28 04:39:38,825 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 04:39:38,826 INFO L435 NwaCegarLoop]: 820 mSDtfsCounter, 9 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2454 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 04:39:38,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2454 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:39:38,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-28 04:39:38,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-28 04:39:38,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 395 states have (on average 1.6430379746835444) internal successors, (649), 414 states have internal predecessors, (649), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 04:39:38,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 826 transitions. [2024-11-28 04:39:38,857 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 826 transitions. Word has length 116 [2024-11-28 04:39:38,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:38,859 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 826 transitions. [2024-11-28 04:39:38,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:38,860 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 826 transitions. [2024-11-28 04:39:38,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-28 04:39:38,864 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:38,865 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:38,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:39:38,865 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:38,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:38,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1295755749, now seen corresponding path program 1 times [2024-11-28 04:39:38,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:38,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280804495] [2024-11-28 04:39:38,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:38,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:39,045 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:39,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:39,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280804495] [2024-11-28 04:39:39,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280804495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:39,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:39,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:39:39,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509819352] [2024-11-28 04:39:39,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:39,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:39:39,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:39,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:39:39,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:39:39,047 INFO L87 Difference]: Start difference. First operand 509 states and 826 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:39,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:39,122 INFO L93 Difference]: Finished difference Result 981 states and 1610 transitions. [2024-11-28 04:39:39,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:39:39,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2024-11-28 04:39:39,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:39,130 INFO L225 Difference]: With dead ends: 981 [2024-11-28 04:39:39,130 INFO L226 Difference]: Without dead ends: 509 [2024-11-28 04:39:39,133 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 04:39:39,134 INFO L435 NwaCegarLoop]: 814 mSDtfsCounter, 4 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2433 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 04:39:39,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2433 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:39:39,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-28 04:39:39,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-28 04:39:39,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 395 states have (on average 1.6405063291139241) internal successors, (648), 414 states have internal predecessors, (648), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 04:39:39,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 825 transitions. [2024-11-28 04:39:39,163 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 825 transitions. Word has length 116 [2024-11-28 04:39:39,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:39,164 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 825 transitions. [2024-11-28 04:39:39,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 04:39:39,164 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 825 transitions. [2024-11-28 04:39:39,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-28 04:39:39,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:39,169 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:39,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:39:39,169 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:39,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:39,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1553257114, now seen corresponding path program 1 times [2024-11-28 04:39:39,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:39,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003439600] [2024-11-28 04:39:39,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:39,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:39,398 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 04:39:39,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:39,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003439600] [2024-11-28 04:39:39,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003439600] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:39:39,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441236121] [2024-11-28 04:39:39,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:39,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:39:39,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:39:39,404 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:39:39,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:39:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:39,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:39:39,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:39:40,011 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:40,011 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:39:40,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441236121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:40,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:39:40,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-28 04:39:40,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653619339] [2024-11-28 04:39:40,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:40,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:39:40,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:40,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:39:40,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:39:40,014 INFO L87 Difference]: Start difference. First operand 509 states and 825 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 04:39:40,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:40,105 INFO L93 Difference]: Finished difference Result 1428 states and 2374 transitions. [2024-11-28 04:39:40,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:39:40,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 117 [2024-11-28 04:39:40,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:40,119 INFO L225 Difference]: With dead ends: 1428 [2024-11-28 04:39:40,120 INFO L226 Difference]: Without dead ends: 964 [2024-11-28 04:39:40,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:39:40,124 INFO L435 NwaCegarLoop]: 940 mSDtfsCounter, 810 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:40,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 1705 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:39:40,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2024-11-28 04:39:40,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 962. [2024-11-28 04:39:40,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 748 states have (on average 1.664438502673797) internal successors, (1245), 781 states have internal predecessors, (1245), 172 states have call successors, (172), 41 states have call predecessors, (172), 41 states have return successors, (177), 165 states have call predecessors, (177), 167 states have call successors, (177) [2024-11-28 04:39:40,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1594 transitions. [2024-11-28 04:39:40,246 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1594 transitions. Word has length 117 [2024-11-28 04:39:40,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:40,248 INFO L471 AbstractCegarLoop]: Abstraction has 962 states and 1594 transitions. [2024-11-28 04:39:40,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 04:39:40,249 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1594 transitions. [2024-11-28 04:39:40,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 04:39:40,254 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:40,254 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:40,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:39:40,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 04:39:40,455 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:40,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:40,456 INFO L85 PathProgramCache]: Analyzing trace with hash -906457514, now seen corresponding path program 1 times [2024-11-28 04:39:40,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:40,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069798499] [2024-11-28 04:39:40,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:40,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:40,674 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 04:39:40,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:40,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069798499] [2024-11-28 04:39:40,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069798499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:39:40,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335249992] [2024-11-28 04:39:40,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:40,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:39:40,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:39:40,678 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:39:40,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:39:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:41,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:39:41,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:39:41,283 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:41,287 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:39:41,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335249992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:41,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:39:41,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-28 04:39:41,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282917733] [2024-11-28 04:39:41,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:41,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:39:41,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:41,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:39:41,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:39:41,289 INFO L87 Difference]: Start difference. First operand 962 states and 1594 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 04:39:41,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:41,443 INFO L93 Difference]: Finished difference Result 2789 states and 4699 transitions. [2024-11-28 04:39:41,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:39:41,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 118 [2024-11-28 04:39:41,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:41,469 INFO L225 Difference]: With dead ends: 2789 [2024-11-28 04:39:41,469 INFO L226 Difference]: Without dead ends: 1872 [2024-11-28 04:39:41,476 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:39:41,477 INFO L435 NwaCegarLoop]: 899 mSDtfsCounter, 809 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:41,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 1667 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:39:41,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2024-11-28 04:39:41,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1869. [2024-11-28 04:39:41,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1869 states, 1455 states have (on average 1.6769759450171822) internal successors, (2440), 1516 states have internal predecessors, (2440), 334 states have call successors, (334), 77 states have call predecessors, (334), 79 states have return successors, (371), 327 states have call predecessors, (371), 329 states have call successors, (371) [2024-11-28 04:39:41,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1869 states to 1869 states and 3145 transitions. [2024-11-28 04:39:41,639 INFO L78 Accepts]: Start accepts. Automaton has 1869 states and 3145 transitions. Word has length 118 [2024-11-28 04:39:41,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:41,642 INFO L471 AbstractCegarLoop]: Abstraction has 1869 states and 3145 transitions. [2024-11-28 04:39:41,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 04:39:41,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1869 states and 3145 transitions. [2024-11-28 04:39:41,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 04:39:41,648 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:41,649 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:41,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:39:41,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:39:41,850 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:41,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:41,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1964464808, now seen corresponding path program 1 times [2024-11-28 04:39:41,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:41,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385448720] [2024-11-28 04:39:41,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:41,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:42,074 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 04:39:42,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:42,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385448720] [2024-11-28 04:39:42,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385448720] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:39:42,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012206702] [2024-11-28 04:39:42,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:42,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:39:42,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:39:42,078 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:39:42,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:39:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:42,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:39:42,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:39:42,698 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:42,698 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:39:42,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012206702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:42,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:39:42,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-28 04:39:42,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709678917] [2024-11-28 04:39:42,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:42,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:39:42,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:42,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:39:42,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:39:42,701 INFO L87 Difference]: Start difference. First operand 1869 states and 3145 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 04:39:43,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:43,011 INFO L93 Difference]: Finished difference Result 5512 states and 9403 transitions. [2024-11-28 04:39:43,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:39:43,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 119 [2024-11-28 04:39:43,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:43,060 INFO L225 Difference]: With dead ends: 5512 [2024-11-28 04:39:43,060 INFO L226 Difference]: Without dead ends: 3688 [2024-11-28 04:39:43,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:39:43,073 INFO L435 NwaCegarLoop]: 889 mSDtfsCounter, 807 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:43,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 1660 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:39:43,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3688 states. [2024-11-28 04:39:43,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3688 to 3684. [2024-11-28 04:39:43,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3684 states, 2870 states have (on average 1.6829268292682926) internal successors, (4830), 2987 states have internal predecessors, (4830), 658 states have call successors, (658), 149 states have call predecessors, (658), 155 states have return successors, (795), 651 states have call predecessors, (795), 653 states have call successors, (795) [2024-11-28 04:39:43,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3684 states to 3684 states and 6283 transitions. [2024-11-28 04:39:43,418 INFO L78 Accepts]: Start accepts. Automaton has 3684 states and 6283 transitions. Word has length 119 [2024-11-28 04:39:43,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:43,422 INFO L471 AbstractCegarLoop]: Abstraction has 3684 states and 6283 transitions. [2024-11-28 04:39:43,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 04:39:43,423 INFO L276 IsEmpty]: Start isEmpty. Operand 3684 states and 6283 transitions. [2024-11-28 04:39:43,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-28 04:39:43,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:43,432 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:43,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:39:43,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 04:39:43,633 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:43,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:43,635 INFO L85 PathProgramCache]: Analyzing trace with hash 768747480, now seen corresponding path program 1 times [2024-11-28 04:39:43,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:43,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706215645] [2024-11-28 04:39:43,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:43,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:43,849 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 04:39:43,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:43,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706215645] [2024-11-28 04:39:43,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706215645] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:39:43,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451002989] [2024-11-28 04:39:43,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:43,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:39:43,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:39:43,853 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:39:43,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:39:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:44,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:39:44,403 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:39:44,475 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:44,476 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:39:44,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451002989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:44,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:39:44,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-28 04:39:44,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083441756] [2024-11-28 04:39:44,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:44,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:39:44,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:44,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:39:44,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:39:44,481 INFO L87 Difference]: Start difference. First operand 3684 states and 6283 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 04:39:45,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:45,033 INFO L93 Difference]: Finished difference Result 10959 states and 18988 transitions. [2024-11-28 04:39:45,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:39:45,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 120 [2024-11-28 04:39:45,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:45,133 INFO L225 Difference]: With dead ends: 10959 [2024-11-28 04:39:45,133 INFO L226 Difference]: Without dead ends: 7320 [2024-11-28 04:39:45,164 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:39:45,165 INFO L435 NwaCegarLoop]: 915 mSDtfsCounter, 807 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:45,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 1687 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:39:45,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7320 states. [2024-11-28 04:39:45,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7320 to 7315. [2024-11-28 04:39:45,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7315 states, 5701 states have (on average 1.685318365199088) internal successors, (9608), 5930 states have internal predecessors, (9608), 1306 states have call successors, (1306), 293 states have call predecessors, (1306), 307 states have return successors, (1763), 1299 states have call predecessors, (1763), 1301 states have call successors, (1763) [2024-11-28 04:39:45,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7315 states to 7315 states and 12677 transitions. [2024-11-28 04:39:45,918 INFO L78 Accepts]: Start accepts. Automaton has 7315 states and 12677 transitions. Word has length 120 [2024-11-28 04:39:45,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:45,919 INFO L471 AbstractCegarLoop]: Abstraction has 7315 states and 12677 transitions. [2024-11-28 04:39:45,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 04:39:45,922 INFO L276 IsEmpty]: Start isEmpty. Operand 7315 states and 12677 transitions. [2024-11-28 04:39:45,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:39:45,928 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:45,929 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:45,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:39:46,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:39:46,133 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:46,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:46,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1938747414, now seen corresponding path program 1 times [2024-11-28 04:39:46,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:46,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845755132] [2024-11-28 04:39:46,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:46,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:46,333 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 04:39:46,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:46,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845755132] [2024-11-28 04:39:46,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845755132] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:39:46,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696464442] [2024-11-28 04:39:46,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:46,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:39:46,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:39:46,337 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:39:46,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:39:46,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:46,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:39:46,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:39:46,873 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:39:46,873 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:39:46,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696464442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:46,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:39:46,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-28 04:39:46,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225572097] [2024-11-28 04:39:46,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:46,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:39:46,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:46,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:39:46,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:39:46,878 INFO L87 Difference]: Start difference. First operand 7315 states and 12677 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 04:39:47,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:47,769 INFO L93 Difference]: Finished difference Result 21854 states and 38796 transitions. [2024-11-28 04:39:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:39:47,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 121 [2024-11-28 04:39:47,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:47,955 INFO L225 Difference]: With dead ends: 21854 [2024-11-28 04:39:47,956 INFO L226 Difference]: Without dead ends: 14576 [2024-11-28 04:39:48,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:39:48,017 INFO L435 NwaCegarLoop]: 935 mSDtfsCounter, 804 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:48,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 1710 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:39:48,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14576 states. [2024-11-28 04:39:49,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14576 to 14570. [2024-11-28 04:39:49,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14570 states, 11357 states have (on average 1.6856564233512372) internal successors, (19144), 11810 states have internal predecessors, (19144), 2602 states have call successors, (2602), 581 states have call predecessors, (2602), 610 states have return successors, (4130), 2594 states have call predecessors, (4130), 2597 states have call successors, (4130) [2024-11-28 04:39:49,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14570 states to 14570 states and 25876 transitions. [2024-11-28 04:39:49,298 INFO L78 Accepts]: Start accepts. Automaton has 14570 states and 25876 transitions. Word has length 121 [2024-11-28 04:39:49,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:49,299 INFO L471 AbstractCegarLoop]: Abstraction has 14570 states and 25876 transitions. [2024-11-28 04:39:49,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 04:39:49,300 INFO L276 IsEmpty]: Start isEmpty. Operand 14570 states and 25876 transitions. [2024-11-28 04:39:49,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-28 04:39:49,335 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:49,335 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:49,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:39:49,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f4797-f709-4180-9574-b03119fbc9f9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:39:49,540 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:49,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:49,541 INFO L85 PathProgramCache]: Analyzing trace with hash 2104333976, now seen corresponding path program 1 times [2024-11-28 04:39:49,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:49,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939178214] [2024-11-28 04:39:49,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:49,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:49,811 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-28 04:39:49,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:49,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939178214] [2024-11-28 04:39:49,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939178214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:49,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:49,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:39:49,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134360151] [2024-11-28 04:39:49,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:49,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:39:49,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:49,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:39:49,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:39:49,814 INFO L87 Difference]: Start difference. First operand 14570 states and 25876 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 04:39:51,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:51,693 INFO L93 Difference]: Finished difference Result 29223 states and 53527 transitions. [2024-11-28 04:39:51,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:39:51,695 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 182 [2024-11-28 04:39:51,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:51,859 INFO L225 Difference]: With dead ends: 29223 [2024-11-28 04:39:51,859 INFO L226 Difference]: Without dead ends: 14698 [2024-11-28 04:39:52,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:39:52,008 INFO L435 NwaCegarLoop]: 807 mSDtfsCounter, 819 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:52,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 3019 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:39:52,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14698 states. [2024-11-28 04:39:53,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14698 to 14698. [2024-11-28 04:39:53,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14698 states, 11453 states have (on average 1.6799091940976163) internal successors, (19240), 11906 states have internal predecessors, (19240), 2602 states have call successors, (2602), 613 states have call predecessors, (2602), 642 states have return successors, (4162), 2594 states have call predecessors, (4162), 2597 states have call successors, (4162) [2024-11-28 04:39:53,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14698 states to 14698 states and 26004 transitions. [2024-11-28 04:39:53,428 INFO L78 Accepts]: Start accepts. Automaton has 14698 states and 26004 transitions. Word has length 182 [2024-11-28 04:39:53,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:53,429 INFO L471 AbstractCegarLoop]: Abstraction has 14698 states and 26004 transitions. [2024-11-28 04:39:53,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 04:39:53,429 INFO L276 IsEmpty]: Start isEmpty. Operand 14698 states and 26004 transitions. [2024-11-28 04:39:53,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-28 04:39:53,464 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:53,465 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:53,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 04:39:53,465 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:53,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:53,466 INFO L85 PathProgramCache]: Analyzing trace with hash 755683207, now seen corresponding path program 1 times [2024-11-28 04:39:53,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:53,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804254340] [2024-11-28 04:39:53,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:53,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:53,862 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-28 04:39:53,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:53,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804254340] [2024-11-28 04:39:53,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804254340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:53,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:53,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:39:53,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574850526] [2024-11-28 04:39:53,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:53,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:39:53,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:53,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:39:53,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:39:53,865 INFO L87 Difference]: Start difference. First operand 14698 states and 26004 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 04:39:55,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:55,399 INFO L93 Difference]: Finished difference Result 29511 states and 53751 transitions. [2024-11-28 04:39:55,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:39:55,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 183 [2024-11-28 04:39:55,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:55,580 INFO L225 Difference]: With dead ends: 29511 [2024-11-28 04:39:55,581 INFO L226 Difference]: Without dead ends: 14858 [2024-11-28 04:39:55,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:39:55,878 INFO L435 NwaCegarLoop]: 809 mSDtfsCounter, 818 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:55,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 3025 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:39:55,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14858 states. [2024-11-28 04:39:56,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14858 to 14858. [2024-11-28 04:39:56,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14858 states, 11581 states have (on average 1.672394439167602) internal successors, (19368), 12034 states have internal predecessors, (19368), 2602 states have call successors, (2602), 645 states have call predecessors, (2602), 674 states have return successors, (4194), 2594 states have call predecessors, (4194), 2597 states have call successors, (4194) [2024-11-28 04:39:56,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14858 states to 14858 states and 26164 transitions. [2024-11-28 04:39:56,856 INFO L78 Accepts]: Start accepts. Automaton has 14858 states and 26164 transitions. Word has length 183 [2024-11-28 04:39:56,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:56,857 INFO L471 AbstractCegarLoop]: Abstraction has 14858 states and 26164 transitions. [2024-11-28 04:39:56,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 04:39:56,857 INFO L276 IsEmpty]: Start isEmpty. Operand 14858 states and 26164 transitions. [2024-11-28 04:39:56,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-28 04:39:56,890 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:56,891 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:56,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 04:39:56,891 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:56,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:56,892 INFO L85 PathProgramCache]: Analyzing trace with hash 400122236, now seen corresponding path program 1 times [2024-11-28 04:39:56,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:56,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443253826] [2024-11-28 04:39:56,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:56,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:57,135 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-28 04:39:57,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:57,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443253826] [2024-11-28 04:39:57,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443253826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:57,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:57,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:39:57,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823069936] [2024-11-28 04:39:57,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:57,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:39:57,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:57,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:39:57,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:39:57,138 INFO L87 Difference]: Start difference. First operand 14858 states and 26164 transitions. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 04:39:58,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:58,652 INFO L93 Difference]: Finished difference Result 29863 states and 54039 transitions. [2024-11-28 04:39:58,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:39:58,653 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 184 [2024-11-28 04:39:58,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:58,826 INFO L225 Difference]: With dead ends: 29863 [2024-11-28 04:39:58,827 INFO L226 Difference]: Without dead ends: 15050 [2024-11-28 04:39:58,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:39:58,942 INFO L435 NwaCegarLoop]: 809 mSDtfsCounter, 818 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:58,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 3025 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:39:58,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15050 states. [2024-11-28 04:40:00,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15050 to 15050. [2024-11-28 04:40:00,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15050 states, 11741 states have (on average 1.663231411293757) internal successors, (19528), 12194 states have internal predecessors, (19528), 2602 states have call successors, (2602), 677 states have call predecessors, (2602), 706 states have return successors, (4226), 2594 states have call predecessors, (4226), 2597 states have call successors, (4226) [2024-11-28 04:40:00,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15050 states to 15050 states and 26356 transitions. [2024-11-28 04:40:00,318 INFO L78 Accepts]: Start accepts. Automaton has 15050 states and 26356 transitions. Word has length 184 [2024-11-28 04:40:00,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:00,319 INFO L471 AbstractCegarLoop]: Abstraction has 15050 states and 26356 transitions. [2024-11-28 04:40:00,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 04:40:00,319 INFO L276 IsEmpty]: Start isEmpty. Operand 15050 states and 26356 transitions. [2024-11-28 04:40:00,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-28 04:40:00,358 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:00,359 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:40:00,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 04:40:00,359 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:40:00,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:00,360 INFO L85 PathProgramCache]: Analyzing trace with hash 765573931, now seen corresponding path program 1 times [2024-11-28 04:40:00,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:00,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25849883] [2024-11-28 04:40:00,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:40:00,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:40:00,710 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-28 04:40:00,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:00,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25849883] [2024-11-28 04:40:00,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25849883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:40:00,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:40:00,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:40:00,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64902078] [2024-11-28 04:40:00,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:40:00,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:40:00,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:00,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:40:00,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:40:00,714 INFO L87 Difference]: Start difference. First operand 15050 states and 26356 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 04:40:02,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:40:02,439 INFO L93 Difference]: Finished difference Result 30279 states and 54391 transitions. [2024-11-28 04:40:02,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:40:02,440 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 185 [2024-11-28 04:40:02,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:40:02,605 INFO L225 Difference]: With dead ends: 30279 [2024-11-28 04:40:02,606 INFO L226 Difference]: Without dead ends: 15274 [2024-11-28 04:40:02,707 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:40:02,709 INFO L435 NwaCegarLoop]: 809 mSDtfsCounter, 818 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:40:02,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 3025 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:40:02,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15274 states. [2024-11-28 04:40:03,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15274 to 15274. [2024-11-28 04:40:03,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15274 states, 11933 states have (on average 1.6525601273778596) internal successors, (19720), 12386 states have internal predecessors, (19720), 2602 states have call successors, (2602), 709 states have call predecessors, (2602), 738 states have return successors, (4258), 2594 states have call predecessors, (4258), 2597 states have call successors, (4258) [2024-11-28 04:40:03,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15274 states to 15274 states and 26580 transitions. [2024-11-28 04:40:03,680 INFO L78 Accepts]: Start accepts. Automaton has 15274 states and 26580 transitions. Word has length 185 [2024-11-28 04:40:03,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:03,681 INFO L471 AbstractCegarLoop]: Abstraction has 15274 states and 26580 transitions. [2024-11-28 04:40:03,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 04:40:03,682 INFO L276 IsEmpty]: Start isEmpty. Operand 15274 states and 26580 transitions. [2024-11-28 04:40:03,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-28 04:40:03,709 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:03,711 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:40:03,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 04:40:03,711 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:40:03,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:03,712 INFO L85 PathProgramCache]: Analyzing trace with hash 2007581792, now seen corresponding path program 1 times [2024-11-28 04:40:03,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:03,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299533359] [2024-11-28 04:40:03,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:40:03,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:40:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-28 04:40:04,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:04,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299533359] [2024-11-28 04:40:04,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299533359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:40:04,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:40:04,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:40:04,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714622918] [2024-11-28 04:40:04,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:40:04,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:40:04,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:04,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:40:04,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:40:04,267 INFO L87 Difference]: Start difference. First operand 15274 states and 26580 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 8 states have internal predecessors, (116), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-28 04:40:16,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:40:16,109 INFO L93 Difference]: Finished difference Result 68262 states and 130881 transitions. [2024-11-28 04:40:16,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:40:16,110 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 8 states have internal predecessors, (116), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 4 states have call successors, (22) Word has length 186 [2024-11-28 04:40:16,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:40:16,901 INFO L225 Difference]: With dead ends: 68262 [2024-11-28 04:40:16,902 INFO L226 Difference]: Without dead ends: 53033 [2024-11-28 04:40:17,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:40:17,175 INFO L435 NwaCegarLoop]: 870 mSDtfsCounter, 2506 mSDsluCounter, 4387 mSDsCounter, 0 mSdLazyCounter, 10040 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2615 SdHoareTripleChecker+Valid, 5257 SdHoareTripleChecker+Invalid, 10654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 10040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:40:17,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2615 Valid, 5257 Invalid, 10654 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [614 Valid, 10040 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2024-11-28 04:40:17,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53033 states. [2024-11-28 04:40:20,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53033 to 51728. [2024-11-28 04:40:20,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51728 states, 39296 states have (on average 1.6344157166123778) internal successors, (64226), 41029 states have internal predecessors, (64226), 9932 states have call successors, (9932), 2118 states have call predecessors, (9932), 2499 states have return successors, (23042), 10148 states have call predecessors, (23042), 9927 states have call successors, (23042) [2024-11-28 04:40:21,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51728 states to 51728 states and 97200 transitions. [2024-11-28 04:40:21,582 INFO L78 Accepts]: Start accepts. Automaton has 51728 states and 97200 transitions. Word has length 186 [2024-11-28 04:40:21,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:21,583 INFO L471 AbstractCegarLoop]: Abstraction has 51728 states and 97200 transitions. [2024-11-28 04:40:21,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 8 states have internal predecessors, (116), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-28 04:40:21,583 INFO L276 IsEmpty]: Start isEmpty. Operand 51728 states and 97200 transitions. [2024-11-28 04:40:21,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-28 04:40:21,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:21,683 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:40:21,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 04:40:21,683 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:40:21,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:21,684 INFO L85 PathProgramCache]: Analyzing trace with hash -5398507, now seen corresponding path program 1 times [2024-11-28 04:40:21,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:21,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614458870] [2024-11-28 04:40:21,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:40:21,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:40:22,000 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-28 04:40:22,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:22,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614458870] [2024-11-28 04:40:22,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614458870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:40:22,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:40:22,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:40:22,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238948427] [2024-11-28 04:40:22,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:40:22,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:40:22,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:22,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:40:22,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:40:22,003 INFO L87 Difference]: Start difference. First operand 51728 states and 97200 transitions. Second operand has 8 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 04:40:24,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:40:24,307 INFO L93 Difference]: Finished difference Result 66805 states and 123451 transitions. [2024-11-28 04:40:24,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:40:24,308 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 189 [2024-11-28 04:40:24,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:40:24,530 INFO L225 Difference]: With dead ends: 66805 [2024-11-28 04:40:24,530 INFO L226 Difference]: Without dead ends: 15111 [2024-11-28 04:40:25,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:40:25,148 INFO L435 NwaCegarLoop]: 805 mSDtfsCounter, 7 mSDsluCounter, 4808 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5613 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:40:25,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5613 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:40:25,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15111 states. [2024-11-28 04:40:25,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15111 to 15111. [2024-11-28 04:40:25,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15111 states, 11834 states have (on average 1.652273111374007) internal successors, (19553), 12287 states have internal predecessors, (19553), 2538 states have call successors, (2538), 709 states have call predecessors, (2538), 738 states have return successors, (4194), 2530 states have call predecessors, (4194), 2533 states have call successors, (4194) [2024-11-28 04:40:26,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15111 states to 15111 states and 26285 transitions. [2024-11-28 04:40:26,195 INFO L78 Accepts]: Start accepts. Automaton has 15111 states and 26285 transitions. Word has length 189 [2024-11-28 04:40:26,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:26,195 INFO L471 AbstractCegarLoop]: Abstraction has 15111 states and 26285 transitions. [2024-11-28 04:40:26,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 04:40:26,196 INFO L276 IsEmpty]: Start isEmpty. Operand 15111 states and 26285 transitions. [2024-11-28 04:40:26,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-28 04:40:26,219 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:26,220 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:40:26,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 04:40:26,223 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:40:26,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:26,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1209443469, now seen corresponding path program 1 times [2024-11-28 04:40:26,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:26,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015108229] [2024-11-28 04:40:26,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:40:26,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:40:26,802 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-28 04:40:26,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:26,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015108229] [2024-11-28 04:40:26,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015108229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:40:26,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:40:26,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:40:26,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207330902] [2024-11-28 04:40:26,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:40:26,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:40:26,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:26,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:40:26,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:40:26,806 INFO L87 Difference]: Start difference. First operand 15111 states and 26285 transitions. Second operand has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 8 states have internal predecessors, (121), 5 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-28 04:40:30,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:40:30,166 INFO L93 Difference]: Finished difference Result 30308 states and 53872 transitions. [2024-11-28 04:40:30,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:40:30,167 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 8 states have internal predecessors, (121), 5 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) Word has length 192 [2024-11-28 04:40:30,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:40:30,585 INFO L225 Difference]: With dead ends: 30308 [2024-11-28 04:40:30,585 INFO L226 Difference]: Without dead ends: 15239 [2024-11-28 04:40:30,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:40:30,658 INFO L435 NwaCegarLoop]: 345 mSDtfsCounter, 1236 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 3177 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 3512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 3177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:40:30,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1236 Valid, 1719 Invalid, 3512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 3177 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 04:40:30,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15239 states. [2024-11-28 04:40:31,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15239 to 15239. [2024-11-28 04:40:31,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15239 states, 11930 states have (on average 1.647024308466052) internal successors, (19649), 12383 states have internal predecessors, (19649), 2538 states have call successors, (2538), 709 states have call predecessors, (2538), 770 states have return successors, (4354), 2562 states have call predecessors, (4354), 2533 states have call successors, (4354) [2024-11-28 04:40:31,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15239 states to 15239 states and 26541 transitions. [2024-11-28 04:40:31,838 INFO L78 Accepts]: Start accepts. Automaton has 15239 states and 26541 transitions. Word has length 192 [2024-11-28 04:40:31,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:31,838 INFO L471 AbstractCegarLoop]: Abstraction has 15239 states and 26541 transitions. [2024-11-28 04:40:31,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 8 states have internal predecessors, (121), 5 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-28 04:40:31,839 INFO L276 IsEmpty]: Start isEmpty. Operand 15239 states and 26541 transitions. [2024-11-28 04:40:31,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-28 04:40:31,854 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:31,855 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:40:31,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 04:40:31,855 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:40:31,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:31,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1054640134, now seen corresponding path program 1 times [2024-11-28 04:40:31,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:31,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399259171] [2024-11-28 04:40:31,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:40:31,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:40:32,153 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-28 04:40:32,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:32,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399259171] [2024-11-28 04:40:32,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399259171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:40:32,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:40:32,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:40:32,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530244702] [2024-11-28 04:40:32,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:40:32,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:40:32,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:32,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:40:32,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:40:32,157 INFO L87 Difference]: Start difference. First operand 15239 states and 26541 transitions. Second operand has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-28 04:40:38,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:40:38,739 INFO L93 Difference]: Finished difference Result 59903 states and 108730 transitions. [2024-11-28 04:40:38,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:40:38,740 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) Word has length 193 [2024-11-28 04:40:38,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:40:39,259 INFO L225 Difference]: With dead ends: 59903 [2024-11-28 04:40:39,259 INFO L226 Difference]: Without dead ends: 44706 [2024-11-28 04:40:39,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:40:39,425 INFO L435 NwaCegarLoop]: 491 mSDtfsCounter, 3302 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 4786 mSolverCounterSat, 891 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3372 SdHoareTripleChecker+Valid, 2201 SdHoareTripleChecker+Invalid, 5677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 891 IncrementalHoareTripleChecker+Valid, 4786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:40:39,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3372 Valid, 2201 Invalid, 5677 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [891 Valid, 4786 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 04:40:39,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44706 states. [2024-11-28 04:40:42,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44706 to 44302. [2024-11-28 04:40:42,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44302 states, 34596 states have (on average 1.6161694993640883) internal successors, (55913), 35944 states have internal predecessors, (55913), 7400 states have call successors, (7400), 2213 states have call predecessors, (7400), 2305 states have return successors, (14944), 7297 states have call predecessors, (14944), 7395 states have call successors, (14944) [2024-11-28 04:40:42,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44302 states to 44302 states and 78257 transitions. [2024-11-28 04:40:42,721 INFO L78 Accepts]: Start accepts. Automaton has 44302 states and 78257 transitions. Word has length 193 [2024-11-28 04:40:42,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:42,722 INFO L471 AbstractCegarLoop]: Abstraction has 44302 states and 78257 transitions. [2024-11-28 04:40:42,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-28 04:40:42,722 INFO L276 IsEmpty]: Start isEmpty. Operand 44302 states and 78257 transitions. [2024-11-28 04:40:42,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-28 04:40:42,743 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:42,744 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:40:42,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 04:40:42,744 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:40:42,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:42,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1758224546, now seen corresponding path program 1 times [2024-11-28 04:40:42,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:42,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547737385] [2024-11-28 04:40:42,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:40:42,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:40:43,194 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-28 04:40:43,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:43,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547737385] [2024-11-28 04:40:43,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547737385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:40:43,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:40:43,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:40:43,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806479018] [2024-11-28 04:40:43,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:40:43,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:40:43,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:43,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:40:43,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:40:43,198 INFO L87 Difference]: Start difference. First operand 44302 states and 78257 transitions. Second operand has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23)