./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec2_product25.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_2071268c-0946-495d-b7ca-c23cb726c1c6/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2071268c-0946-495d-b7ca-c23cb726c1c6/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2071268c-0946-495d-b7ca-c23cb726c1c6/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2071268c-0946-495d-b7ca-c23cb726c1c6/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2071268c-0946-495d-b7ca-c23cb726c1c6/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2071268c-0946-495d-b7ca-c23cb726c1c6/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 68493680033c9035e39b01d00eb3730662e9195bee3c7e3d4b2805e2b52b60ec --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:48:21,552 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:48:21,613 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2071268c-0946-495d-b7ca-c23cb726c1c6/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:48:21,619 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:48:21,619 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:48:21,642 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:48:21,643 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:48:21,643 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:48:21,644 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:48:21,644 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:48:21,644 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:48:21,644 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:48:21,644 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:48:21,644 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:48:21,644 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:48:21,645 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:48:21,645 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:48:21,645 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:48:21,645 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:48:21,645 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:48:21,645 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:48:21,645 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:48:21,645 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:48:21,645 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:48:21,645 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:48:21,646 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:48:21,646 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:48:21,646 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:48:21,646 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:48:21,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:48:21,646 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:48:21,646 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:48:21,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:48:21,646 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:48:21,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:48:21,647 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:48:21,647 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:48:21,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:48:21,647 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:48:21,647 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:48:21,647 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:48:21,647 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:48:21,647 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:48:21,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:48:21,648 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:48:21,648 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:48:21,648 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:48:21,648 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:48:21,648 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_2071268c-0946-495d-b7ca-c23cb726c1c6/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68493680033c9035e39b01d00eb3730662e9195bee3c7e3d4b2805e2b52b60ec [2024-12-02 07:48:21,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:48:21,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:48:21,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:48:21,907 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:48:21,908 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:48:21,909 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2071268c-0946-495d-b7ca-c23cb726c1c6/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c [2024-12-02 07:48:24,673 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2071268c-0946-495d-b7ca-c23cb726c1c6/bin/uautomizer-verify-84ZbGMXZE1/data/79126fbed/2e5836d81a0d46ca8f6285530e0f2e86/FLAG6f2d510a2 [2024-12-02 07:48:24,947 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:48:24,948 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2071268c-0946-495d-b7ca-c23cb726c1c6/sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c [2024-12-02 07:48:24,966 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2071268c-0946-495d-b7ca-c23cb726c1c6/bin/uautomizer-verify-84ZbGMXZE1/data/79126fbed/2e5836d81a0d46ca8f6285530e0f2e86/FLAG6f2d510a2 [2024-12-02 07:48:24,982 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2071268c-0946-495d-b7ca-c23cb726c1c6/bin/uautomizer-verify-84ZbGMXZE1/data/79126fbed/2e5836d81a0d46ca8f6285530e0f2e86 [2024-12-02 07:48:24,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:48:24,986 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:48:24,987 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:48:24,988 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:48:24,992 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:48:24,993 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:48:24" (1/1) ... [2024-12-02 07:48:24,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5cd620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:48:24, skipping insertion in model container [2024-12-02 07:48:24,994 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:48:24" (1/1) ... [2024-12-02 07:48:25,042 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:48:25,461 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_2071268c-0946-495d-b7ca-c23cb726c1c6/sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c[66231,66244] [2024-12-02 07:48:25,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:48:25,508 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:48:25,517 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-12-02 07:48:25,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [86] [2024-12-02 07:48:25,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [100] [2024-12-02 07:48:25,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [286] [2024-12-02 07:48:25,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1765] [2024-12-02 07:48:25,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1884] [2024-12-02 07:48:25,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2546] [2024-12-02 07:48:25,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2638] [2024-12-02 07:48:25,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3004] [2024-12-02 07:48:25,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3013] [2024-12-02 07:48:25,605 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_2071268c-0946-495d-b7ca-c23cb726c1c6/sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c[66231,66244] [2024-12-02 07:48:25,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:48:25,641 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:48:25,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:48:25 WrapperNode [2024-12-02 07:48:25,642 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:48:25,643 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:48:25,643 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:48:25,643 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:48:25,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:48:25" (1/1) ... [2024-12-02 07:48:25,672 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:48:25" (1/1) ... [2024-12-02 07:48:25,716 INFO L138 Inliner]: procedures = 91, calls = 334, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 844 [2024-12-02 07:48:25,716 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:48:25,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:48:25,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:48:25,717 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:48:25,728 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:48:25" (1/1) ... [2024-12-02 07:48:25,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:48:25" (1/1) ... [2024-12-02 07:48:25,734 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:48:25" (1/1) ... [2024-12-02 07:48:25,757 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-12-02 07:48:25,758 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:48:25" (1/1) ... [2024-12-02 07:48:25,758 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:48:25" (1/1) ... [2024-12-02 07:48:25,776 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:48:25" (1/1) ... [2024-12-02 07:48:25,779 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:48:25" (1/1) ... [2024-12-02 07:48:25,792 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:48:25" (1/1) ... [2024-12-02 07:48:25,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:48:25" (1/1) ... [2024-12-02 07:48:25,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:48:25" (1/1) ... [2024-12-02 07:48:25,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:48:25,810 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:48:25,811 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:48:25,811 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:48:25,812 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:48:25" (1/1) ... [2024-12-02 07:48:25,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:48:25,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2071268c-0946-495d-b7ca-c23cb726c1c6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:48:25,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2071268c-0946-495d-b7ca-c23cb726c1c6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:48:25,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2071268c-0946-495d-b7ca-c23cb726c1c6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:48:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:48:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-12-02 07:48:25,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-12-02 07:48:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-12-02 07:48:25,881 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-12-02 07:48:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-12-02 07:48:25,881 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-12-02 07:48:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-12-02 07:48:25,882 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-12-02 07:48:25,882 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-12-02 07:48:25,882 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-12-02 07:48:25,882 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 07:48:25,882 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 07:48:25,882 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 07:48:25,882 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 07:48:25,882 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-12-02 07:48:25,882 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-12-02 07:48:25,882 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-12-02 07:48:25,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-12-02 07:48:25,882 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-12-02 07:48:25,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-12-02 07:48:25,882 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-12-02 07:48:25,882 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-12-02 07:48:25,883 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-12-02 07:48:25,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-12-02 07:48:25,883 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-12-02 07:48:25,883 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-12-02 07:48:25,883 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-12-02 07:48:25,883 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-12-02 07:48:25,883 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-12-02 07:48:25,883 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-12-02 07:48:25,883 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-12-02 07:48:25,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-12-02 07:48:25,883 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-12-02 07:48:25,883 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-12-02 07:48:25,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:48:25,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 07:48:25,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 07:48:25,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 07:48:25,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 07:48:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 07:48:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 07:48:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 07:48:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 07:48:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 07:48:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 07:48:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 07:48:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 07:48:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 07:48:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 07:48:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 07:48:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 07:48:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 07:48:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 07:48:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 07:48:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-12-02 07:48:25,884 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-12-02 07:48:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-12-02 07:48:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-12-02 07:48:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-12-02 07:48:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-12-02 07:48:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:48:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:48:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-12-02 07:48:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-12-02 07:48:26,042 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:48:26,044 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:48:27,153 INFO L? ?]: Removed 439 outVars from TransFormulas that were not future-live. [2024-12-02 07:48:27,153 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:48:27,173 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:48:27,174 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:48:27,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:48:27 BoogieIcfgContainer [2024-12-02 07:48:27,174 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:48:27,176 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:48:27,177 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:48:27,181 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:48:27,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:48:24" (1/3) ... [2024-12-02 07:48:27,182 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f7c6cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:48:27, skipping insertion in model container [2024-12-02 07:48:27,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:48:25" (2/3) ... [2024-12-02 07:48:27,182 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f7c6cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:48:27, skipping insertion in model container [2024-12-02 07:48:27,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:48:27" (3/3) ... [2024-12-02 07:48:27,184 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product25.cil.c [2024-12-02 07:48:27,197 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:48:27,199 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec2_product25.cil.c that has 22 procedures, 540 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:48:27,263 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:48:27,273 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;@1822d9b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:48:27,273 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:48:27,279 INFO L276 IsEmpty]: Start isEmpty. Operand has 540 states, 429 states have (on average 1.7132867132867133) internal successors, (735), 450 states have internal predecessors, (735), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) [2024-12-02 07:48:27,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-12-02 07:48:27,308 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:27,309 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:27,309 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:27,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:27,315 INFO L85 PathProgramCache]: Analyzing trace with hash 190335204, now seen corresponding path program 1 times [2024-12-02 07:48:27,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:27,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219106745] [2024-12-02 07:48:27,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:27,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:27,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:27,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:27,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219106745] [2024-12-02 07:48:27,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219106745] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:27,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:27,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:48:27,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57705299] [2024-12-02 07:48:27,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:27,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:48:27,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:27,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:48:27,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:48:27,834 INFO L87 Difference]: Start difference. First operand has 540 states, 429 states have (on average 1.7132867132867133) internal successors, (735), 450 states have internal predecessors, (735), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:27,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:27,980 INFO L93 Difference]: Finished difference Result 1060 states and 1797 transitions. [2024-12-02 07:48:27,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:48:27,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2024-12-02 07:48:27,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:27,998 INFO L225 Difference]: With dead ends: 1060 [2024-12-02 07:48:27,998 INFO L226 Difference]: Without dead ends: 532 [2024-12-02 07:48:28,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:48:28,008 INFO L435 NwaCegarLoop]: 890 mSDtfsCounter, 5 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:28,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2666 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:48:28,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-12-02 07:48:28,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-12-02 07:48:28,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 423 states have (on average 1.7092198581560283) internal successors, (723), 442 states have internal predecessors, (723), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 07:48:28,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 894 transitions. [2024-12-02 07:48:28,095 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 894 transitions. Word has length 74 [2024-12-02 07:48:28,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:28,095 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 894 transitions. [2024-12-02 07:48:28,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:28,096 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 894 transitions. [2024-12-02 07:48:28,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-12-02 07:48:28,102 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:28,102 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:28,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:48:28,102 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:28,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:28,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1351955610, now seen corresponding path program 1 times [2024-12-02 07:48:28,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:28,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769472940] [2024-12-02 07:48:28,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:28,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:28,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:28,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:28,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769472940] [2024-12-02 07:48:28,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769472940] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:28,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:28,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:48:28,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018382342] [2024-12-02 07:48:28,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:28,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:48:28,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:28,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:48:28,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:48:28,321 INFO L87 Difference]: Start difference. First operand 532 states and 894 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:28,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:28,419 INFO L93 Difference]: Finished difference Result 1046 states and 1765 transitions. [2024-12-02 07:48:28,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:48:28,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 76 [2024-12-02 07:48:28,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:28,427 INFO L225 Difference]: With dead ends: 1046 [2024-12-02 07:48:28,427 INFO L226 Difference]: Without dead ends: 532 [2024-12-02 07:48:28,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:48:28,432 INFO L435 NwaCegarLoop]: 883 mSDtfsCounter, 4 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2645 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:28,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2645 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:48:28,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-12-02 07:48:28,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-12-02 07:48:28,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 423 states have (on average 1.706855791962175) internal successors, (722), 442 states have internal predecessors, (722), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 07:48:28,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 893 transitions. [2024-12-02 07:48:28,490 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 893 transitions. Word has length 76 [2024-12-02 07:48:28,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:28,491 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 893 transitions. [2024-12-02 07:48:28,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:28,491 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 893 transitions. [2024-12-02 07:48:28,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-02 07:48:28,495 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:28,496 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:28,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:48:28,496 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:28,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:28,497 INFO L85 PathProgramCache]: Analyzing trace with hash -706920294, now seen corresponding path program 1 times [2024-12-02 07:48:28,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:28,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352689484] [2024-12-02 07:48:28,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:28,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:28,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:28,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:28,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352689484] [2024-12-02 07:48:28,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352689484] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:28,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:28,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:48:28,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134904361] [2024-12-02 07:48:28,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:28,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:48:28,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:28,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:48:28,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:48:28,679 INFO L87 Difference]: Start difference. First operand 532 states and 893 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:28,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:28,762 INFO L93 Difference]: Finished difference Result 1046 states and 1764 transitions. [2024-12-02 07:48:28,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:48:28,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 77 [2024-12-02 07:48:28,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:28,769 INFO L225 Difference]: With dead ends: 1046 [2024-12-02 07:48:28,770 INFO L226 Difference]: Without dead ends: 532 [2024-12-02 07:48:28,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:48:28,774 INFO L435 NwaCegarLoop]: 883 mSDtfsCounter, 3 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2645 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:28,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2645 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:48:28,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-12-02 07:48:28,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-12-02 07:48:28,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 423 states have (on average 1.7044917257683214) internal successors, (721), 442 states have internal predecessors, (721), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 07:48:28,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 892 transitions. [2024-12-02 07:48:28,808 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 892 transitions. Word has length 77 [2024-12-02 07:48:28,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:28,809 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 892 transitions. [2024-12-02 07:48:28,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:28,809 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 892 transitions. [2024-12-02 07:48:28,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-02 07:48:28,813 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:28,813 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:28,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:48:28,814 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:28,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:28,814 INFO L85 PathProgramCache]: Analyzing trace with hash -942357090, now seen corresponding path program 1 times [2024-12-02 07:48:28,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:28,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781277482] [2024-12-02 07:48:28,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:28,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:28,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:28,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:28,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781277482] [2024-12-02 07:48:28,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781277482] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:28,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:28,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:48:28,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461361174] [2024-12-02 07:48:28,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:28,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:48:28,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:28,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:48:28,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:48:28,979 INFO L87 Difference]: Start difference. First operand 532 states and 892 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:29,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:29,048 INFO L93 Difference]: Finished difference Result 1046 states and 1763 transitions. [2024-12-02 07:48:29,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:48:29,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2024-12-02 07:48:29,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:29,055 INFO L225 Difference]: With dead ends: 1046 [2024-12-02 07:48:29,055 INFO L226 Difference]: Without dead ends: 532 [2024-12-02 07:48:29,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:48:29,060 INFO L435 NwaCegarLoop]: 883 mSDtfsCounter, 2 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2645 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:29,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2645 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:48:29,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-12-02 07:48:29,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-12-02 07:48:29,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 423 states have (on average 1.702127659574468) internal successors, (720), 442 states have internal predecessors, (720), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 07:48:29,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 891 transitions. [2024-12-02 07:48:29,086 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 891 transitions. Word has length 78 [2024-12-02 07:48:29,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:29,087 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 891 transitions. [2024-12-02 07:48:29,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:29,087 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 891 transitions. [2024-12-02 07:48:29,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 07:48:29,090 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:29,090 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:29,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:48:29,090 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:29,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:29,091 INFO L85 PathProgramCache]: Analyzing trace with hash -485756386, now seen corresponding path program 1 times [2024-12-02 07:48:29,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:29,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354984669] [2024-12-02 07:48:29,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:29,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:29,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:29,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:29,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354984669] [2024-12-02 07:48:29,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354984669] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:29,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:29,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:48:29,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044883575] [2024-12-02 07:48:29,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:29,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:48:29,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:29,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:48:29,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:48:29,228 INFO L87 Difference]: Start difference. First operand 532 states and 891 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:29,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:29,280 INFO L93 Difference]: Finished difference Result 1046 states and 1762 transitions. [2024-12-02 07:48:29,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:48:29,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 79 [2024-12-02 07:48:29,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:29,286 INFO L225 Difference]: With dead ends: 1046 [2024-12-02 07:48:29,286 INFO L226 Difference]: Without dead ends: 532 [2024-12-02 07:48:29,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:48:29,289 INFO L435 NwaCegarLoop]: 883 mSDtfsCounter, 1 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2645 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:29,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2645 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:48:29,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-12-02 07:48:29,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-12-02 07:48:29,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 423 states have (on average 1.6997635933806146) internal successors, (719), 442 states have internal predecessors, (719), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 07:48:29,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 890 transitions. [2024-12-02 07:48:29,313 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 890 transitions. Word has length 79 [2024-12-02 07:48:29,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:29,314 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 890 transitions. [2024-12-02 07:48:29,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:29,314 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 890 transitions. [2024-12-02 07:48:29,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 07:48:29,317 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:29,317 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:29,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:48:29,317 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:29,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:29,318 INFO L85 PathProgramCache]: Analyzing trace with hash -259527965, now seen corresponding path program 1 times [2024-12-02 07:48:29,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:29,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017568868] [2024-12-02 07:48:29,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:29,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:29,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:29,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:29,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017568868] [2024-12-02 07:48:29,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017568868] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:29,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:29,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:48:29,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729403561] [2024-12-02 07:48:29,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:29,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:48:29,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:29,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:48:29,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:48:29,433 INFO L87 Difference]: Start difference. First operand 532 states and 890 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:29,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:29,491 INFO L93 Difference]: Finished difference Result 1046 states and 1761 transitions. [2024-12-02 07:48:29,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:48:29,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 80 [2024-12-02 07:48:29,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:29,497 INFO L225 Difference]: With dead ends: 1046 [2024-12-02 07:48:29,498 INFO L226 Difference]: Without dead ends: 532 [2024-12-02 07:48:29,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:48:29,501 INFO L435 NwaCegarLoop]: 883 mSDtfsCounter, 0 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2645 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:29,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2645 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:48:29,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-12-02 07:48:29,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-12-02 07:48:29,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 423 states have (on average 1.6973995271867612) internal successors, (718), 442 states have internal predecessors, (718), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 07:48:29,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 889 transitions. [2024-12-02 07:48:29,529 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 889 transitions. Word has length 80 [2024-12-02 07:48:29,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:29,529 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 889 transitions. [2024-12-02 07:48:29,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:29,530 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 889 transitions. [2024-12-02 07:48:29,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 07:48:29,533 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:29,533 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:29,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:48:29,534 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:29,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:29,534 INFO L85 PathProgramCache]: Analyzing trace with hash -50829662, now seen corresponding path program 1 times [2024-12-02 07:48:29,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:29,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826591177] [2024-12-02 07:48:29,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:29,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:29,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:29,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:29,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826591177] [2024-12-02 07:48:29,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826591177] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:29,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:29,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:48:29,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540897852] [2024-12-02 07:48:29,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:29,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:48:29,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:29,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:48:29,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:48:29,815 INFO L87 Difference]: Start difference. First operand 532 states and 889 transitions. Second operand has 9 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 07:48:29,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:29,992 INFO L93 Difference]: Finished difference Result 1006 states and 1685 transitions. [2024-12-02 07:48:29,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:48:29,992 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 80 [2024-12-02 07:48:29,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:29,998 INFO L225 Difference]: With dead ends: 1006 [2024-12-02 07:48:29,998 INFO L226 Difference]: Without dead ends: 526 [2024-12-02 07:48:30,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:48:30,002 INFO L435 NwaCegarLoop]: 875 mSDtfsCounter, 91 mSDsluCounter, 6041 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 6916 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:30,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 6916 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:48:30,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-12-02 07:48:30,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2024-12-02 07:48:30,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 417 states have (on average 1.6906474820143884) internal successors, (705), 436 states have internal predecessors, (705), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 07:48:30,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 876 transitions. [2024-12-02 07:48:30,030 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 876 transitions. Word has length 80 [2024-12-02 07:48:30,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:30,031 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 876 transitions. [2024-12-02 07:48:30,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 07:48:30,031 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 876 transitions. [2024-12-02 07:48:30,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 07:48:30,034 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:30,035 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:30,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:48:30,035 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:30,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:30,035 INFO L85 PathProgramCache]: Analyzing trace with hash -222114396, now seen corresponding path program 1 times [2024-12-02 07:48:30,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:30,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762156611] [2024-12-02 07:48:30,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:30,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:30,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:30,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:30,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762156611] [2024-12-02 07:48:30,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762156611] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:30,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:30,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:48:30,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943788129] [2024-12-02 07:48:30,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:30,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:48:30,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:30,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:48:30,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:48:30,216 INFO L87 Difference]: Start difference. First operand 526 states and 876 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:30,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:30,493 INFO L93 Difference]: Finished difference Result 1009 states and 1686 transitions. [2024-12-02 07:48:30,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:48:30,494 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 81 [2024-12-02 07:48:30,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:30,501 INFO L225 Difference]: With dead ends: 1009 [2024-12-02 07:48:30,501 INFO L226 Difference]: Without dead ends: 535 [2024-12-02 07:48:30,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:48:30,505 INFO L435 NwaCegarLoop]: 833 mSDtfsCounter, 55 mSDsluCounter, 3303 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4136 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:30,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4136 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:48:30,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-12-02 07:48:30,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 526. [2024-12-02 07:48:30,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 417 states have (on average 1.6810551558752997) internal successors, (701), 436 states have internal predecessors, (701), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 07:48:30,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 872 transitions. [2024-12-02 07:48:30,541 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 872 transitions. Word has length 81 [2024-12-02 07:48:30,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:30,542 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 872 transitions. [2024-12-02 07:48:30,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:30,542 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 872 transitions. [2024-12-02 07:48:30,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 07:48:30,546 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:30,546 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:30,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:48:30,546 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:30,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:30,547 INFO L85 PathProgramCache]: Analyzing trace with hash 81253151, now seen corresponding path program 1 times [2024-12-02 07:48:30,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:30,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046396702] [2024-12-02 07:48:30,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:30,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:30,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:30,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:30,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046396702] [2024-12-02 07:48:30,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046396702] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:30,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:30,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:48:30,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419699974] [2024-12-02 07:48:30,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:30,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:48:30,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:30,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:48:30,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:48:30,770 INFO L87 Difference]: Start difference. First operand 526 states and 872 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:30,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:30,992 INFO L93 Difference]: Finished difference Result 1009 states and 1682 transitions. [2024-12-02 07:48:30,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:48:30,993 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2024-12-02 07:48:30,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:30,998 INFO L225 Difference]: With dead ends: 1009 [2024-12-02 07:48:30,998 INFO L226 Difference]: Without dead ends: 535 [2024-12-02 07:48:31,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:48:31,002 INFO L435 NwaCegarLoop]: 833 mSDtfsCounter, 54 mSDsluCounter, 3303 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4136 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 [2024-12-02 07:48:31,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4136 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:48:31,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-12-02 07:48:31,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 526. [2024-12-02 07:48:31,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 417 states have (on average 1.671462829736211) internal successors, (697), 436 states have internal predecessors, (697), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 07:48:31,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 868 transitions. [2024-12-02 07:48:31,029 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 868 transitions. Word has length 82 [2024-12-02 07:48:31,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:31,029 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 868 transitions. [2024-12-02 07:48:31,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:31,030 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 868 transitions. [2024-12-02 07:48:31,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 07:48:31,033 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:31,034 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:31,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:48:31,034 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:31,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:31,034 INFO L85 PathProgramCache]: Analyzing trace with hash 997399391, now seen corresponding path program 1 times [2024-12-02 07:48:31,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:31,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701392279] [2024-12-02 07:48:31,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:31,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:31,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:31,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:31,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701392279] [2024-12-02 07:48:31,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701392279] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:31,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:31,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:48:31,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567482005] [2024-12-02 07:48:31,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:31,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:48:31,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:31,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:48:31,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:48:31,209 INFO L87 Difference]: Start difference. First operand 526 states and 868 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:31,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:31,426 INFO L93 Difference]: Finished difference Result 1009 states and 1678 transitions. [2024-12-02 07:48:31,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:48:31,426 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2024-12-02 07:48:31,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:31,432 INFO L225 Difference]: With dead ends: 1009 [2024-12-02 07:48:31,432 INFO L226 Difference]: Without dead ends: 535 [2024-12-02 07:48:31,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:48:31,435 INFO L435 NwaCegarLoop]: 832 mSDtfsCounter, 53 mSDsluCounter, 3286 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4118 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:31,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4118 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:48:31,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-12-02 07:48:31,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 526. [2024-12-02 07:48:31,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 417 states have (on average 1.6618705035971224) internal successors, (693), 436 states have internal predecessors, (693), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 07:48:31,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 864 transitions. [2024-12-02 07:48:31,462 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 864 transitions. Word has length 83 [2024-12-02 07:48:31,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:31,462 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 864 transitions. [2024-12-02 07:48:31,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:31,463 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 864 transitions. [2024-12-02 07:48:31,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 07:48:31,467 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:31,467 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:31,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 07:48:31,467 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:31,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:31,468 INFO L85 PathProgramCache]: Analyzing trace with hash 725683935, now seen corresponding path program 1 times [2024-12-02 07:48:31,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:31,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446256236] [2024-12-02 07:48:31,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:31,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:31,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:31,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:31,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446256236] [2024-12-02 07:48:31,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446256236] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:31,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:31,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:48:31,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114279562] [2024-12-02 07:48:31,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:31,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:48:31,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:31,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:48:31,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:48:31,662 INFO L87 Difference]: Start difference. First operand 526 states and 864 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 07:48:31,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:31,756 INFO L93 Difference]: Finished difference Result 1000 states and 1660 transitions. [2024-12-02 07:48:31,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:48:31,757 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 83 [2024-12-02 07:48:31,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:31,763 INFO L225 Difference]: With dead ends: 1000 [2024-12-02 07:48:31,763 INFO L226 Difference]: Without dead ends: 505 [2024-12-02 07:48:31,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:48:31,767 INFO L435 NwaCegarLoop]: 853 mSDtfsCounter, 84 mSDsluCounter, 4192 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5045 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:31,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5045 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:48:31,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-12-02 07:48:31,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2024-12-02 07:48:31,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 396 states have (on average 1.6641414141414141) internal successors, (659), 415 states have internal predecessors, (659), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 07:48:31,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 830 transitions. [2024-12-02 07:48:31,792 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 830 transitions. Word has length 83 [2024-12-02 07:48:31,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:31,792 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 830 transitions. [2024-12-02 07:48:31,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 07:48:31,792 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 830 transitions. [2024-12-02 07:48:31,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 07:48:31,796 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:31,796 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:31,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 07:48:31,796 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:31,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:31,797 INFO L85 PathProgramCache]: Analyzing trace with hash -565151366, now seen corresponding path program 1 times [2024-12-02 07:48:31,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:31,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41623305] [2024-12-02 07:48:31,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:31,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:31,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:31,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:31,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:31,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41623305] [2024-12-02 07:48:31,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41623305] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:31,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:31,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:48:31,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102239111] [2024-12-02 07:48:31,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:31,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:48:31,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:31,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:48:31,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:48:31,964 INFO L87 Difference]: Start difference. First operand 505 states and 830 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:32,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:32,062 INFO L93 Difference]: Finished difference Result 979 states and 1626 transitions. [2024-12-02 07:48:32,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:48:32,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2024-12-02 07:48:32,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:32,068 INFO L225 Difference]: With dead ends: 979 [2024-12-02 07:48:32,068 INFO L226 Difference]: Without dead ends: 505 [2024-12-02 07:48:32,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:48:32,072 INFO L435 NwaCegarLoop]: 813 mSDtfsCounter, 17 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4056 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:32,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4056 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:48:32,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-12-02 07:48:32,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2024-12-02 07:48:32,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 396 states have (on average 1.6616161616161615) internal successors, (658), 415 states have internal predecessors, (658), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 07:48:32,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 829 transitions. [2024-12-02 07:48:32,096 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 829 transitions. Word has length 84 [2024-12-02 07:48:32,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:32,097 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 829 transitions. [2024-12-02 07:48:32,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:32,097 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 829 transitions. [2024-12-02 07:48:32,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 07:48:32,100 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:32,100 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:32,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 07:48:32,100 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:32,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:32,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1657897702, now seen corresponding path program 1 times [2024-12-02 07:48:32,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:32,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316452107] [2024-12-02 07:48:32,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:32,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:32,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:32,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:32,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316452107] [2024-12-02 07:48:32,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316452107] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:32,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:32,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:48:32,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089584616] [2024-12-02 07:48:32,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:32,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:48:32,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:32,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:48:32,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:48:32,292 INFO L87 Difference]: Start difference. First operand 505 states and 829 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:32,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:32,388 INFO L93 Difference]: Finished difference Result 979 states and 1625 transitions. [2024-12-02 07:48:32,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:48:32,389 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 85 [2024-12-02 07:48:32,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:32,395 INFO L225 Difference]: With dead ends: 979 [2024-12-02 07:48:32,395 INFO L226 Difference]: Without dead ends: 505 [2024-12-02 07:48:32,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:48:32,399 INFO L435 NwaCegarLoop]: 813 mSDtfsCounter, 16 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4056 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:32,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4056 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:48:32,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-12-02 07:48:32,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2024-12-02 07:48:32,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 396 states have (on average 1.6590909090909092) internal successors, (657), 415 states have internal predecessors, (657), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 07:48:32,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 828 transitions. [2024-12-02 07:48:32,425 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 828 transitions. Word has length 85 [2024-12-02 07:48:32,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:32,425 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 828 transitions. [2024-12-02 07:48:32,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:32,426 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 828 transitions. [2024-12-02 07:48:32,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 07:48:32,429 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:32,429 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:32,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 07:48:32,430 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:32,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:32,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1030934125, now seen corresponding path program 1 times [2024-12-02 07:48:32,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:32,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962178462] [2024-12-02 07:48:32,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:32,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:32,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:32,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:32,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:32,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962178462] [2024-12-02 07:48:32,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962178462] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:32,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:32,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:48:32,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243374300] [2024-12-02 07:48:32,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:32,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:48:32,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:32,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:48:32,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:48:32,554 INFO L87 Difference]: Start difference. First operand 505 states and 828 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:32,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:32,601 INFO L93 Difference]: Finished difference Result 979 states and 1624 transitions. [2024-12-02 07:48:32,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:48:32,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 86 [2024-12-02 07:48:32,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:32,608 INFO L225 Difference]: With dead ends: 979 [2024-12-02 07:48:32,608 INFO L226 Difference]: Without dead ends: 505 [2024-12-02 07:48:32,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:48:32,611 INFO L435 NwaCegarLoop]: 821 mSDtfsCounter, 9 mSDsluCounter, 1636 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2457 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:32,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2457 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:48:32,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-12-02 07:48:32,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2024-12-02 07:48:32,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 396 states have (on average 1.6565656565656566) internal successors, (656), 415 states have internal predecessors, (656), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 07:48:32,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 827 transitions. [2024-12-02 07:48:32,637 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 827 transitions. Word has length 86 [2024-12-02 07:48:32,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:32,637 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 827 transitions. [2024-12-02 07:48:32,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:48:32,638 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 827 transitions. [2024-12-02 07:48:32,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 07:48:32,641 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:32,641 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:32,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 07:48:32,642 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:32,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:32,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1071608875, now seen corresponding path program 1 times [2024-12-02 07:48:32,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:32,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360091355] [2024-12-02 07:48:32,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:32,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:32,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:32,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:32,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360091355] [2024-12-02 07:48:32,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360091355] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:32,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:32,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:48:32,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391644280] [2024-12-02 07:48:32,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:32,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:48:32,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:32,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:48:32,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:48:32,958 INFO L87 Difference]: Start difference. First operand 505 states and 827 transitions. Second operand has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 07:48:33,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:33,097 INFO L93 Difference]: Finished difference Result 973 states and 1612 transitions. [2024-12-02 07:48:33,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:48:33,098 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 86 [2024-12-02 07:48:33,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:33,104 INFO L225 Difference]: With dead ends: 973 [2024-12-02 07:48:33,104 INFO L226 Difference]: Without dead ends: 505 [2024-12-02 07:48:33,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:48:33,108 INFO L435 NwaCegarLoop]: 811 mSDtfsCounter, 5 mSDsluCounter, 6467 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7278 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:33,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 7278 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:48:33,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-12-02 07:48:33,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2024-12-02 07:48:33,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 396 states have (on average 1.654040404040404) internal successors, (655), 415 states have internal predecessors, (655), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 07:48:33,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 826 transitions. [2024-12-02 07:48:33,133 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 826 transitions. Word has length 86 [2024-12-02 07:48:33,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:33,134 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 826 transitions. [2024-12-02 07:48:33,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 07:48:33,134 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 826 transitions. [2024-12-02 07:48:33,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 07:48:33,137 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:33,137 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:33,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 07:48:33,138 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:33,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:33,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1931567099, now seen corresponding path program 1 times [2024-12-02 07:48:33,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:33,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862585834] [2024-12-02 07:48:33,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:33,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:33,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:33,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:33,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862585834] [2024-12-02 07:48:33,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862585834] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:33,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:33,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:48:33,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136728640] [2024-12-02 07:48:33,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:33,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:48:33,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:33,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:48:33,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:48:33,471 INFO L87 Difference]: Start difference. First operand 505 states and 826 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 07:48:35,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:35,623 INFO L93 Difference]: Finished difference Result 969 states and 1624 transitions. [2024-12-02 07:48:35,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:48:35,624 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2024-12-02 07:48:35,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:35,630 INFO L225 Difference]: With dead ends: 969 [2024-12-02 07:48:35,630 INFO L226 Difference]: Without dead ends: 509 [2024-12-02 07:48:35,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:48:35,634 INFO L435 NwaCegarLoop]: 374 mSDtfsCounter, 1276 mSDsluCounter, 1210 mSDsCounter, 0 mSdLazyCounter, 2564 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 2926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 2564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:35,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1276 Valid, 1584 Invalid, 2926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 2564 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 07:48:35,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-12-02 07:48:35,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-12-02 07:48:35,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 399 states have (on average 1.6491228070175439) internal successors, (658), 418 states have internal predecessors, (658), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (99), 82 states have call predecessors, (99), 83 states have call successors, (99) [2024-12-02 07:48:35,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 845 transitions. [2024-12-02 07:48:35,672 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 845 transitions. Word has length 87 [2024-12-02 07:48:35,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:35,673 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 845 transitions. [2024-12-02 07:48:35,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 07:48:35,673 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 845 transitions. [2024-12-02 07:48:35,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-12-02 07:48:35,676 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:35,676 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:35,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 07:48:35,677 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:35,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:35,677 INFO L85 PathProgramCache]: Analyzing trace with hash 2048169286, now seen corresponding path program 1 times [2024-12-02 07:48:35,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:35,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634052388] [2024-12-02 07:48:35,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:35,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:35,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:35,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:35,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634052388] [2024-12-02 07:48:35,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634052388] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:35,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:35,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:48:35,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504060446] [2024-12-02 07:48:35,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:35,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:48:35,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:35,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:48:35,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:48:35,923 INFO L87 Difference]: Start difference. First operand 509 states and 845 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 07:48:40,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:40,060 INFO L93 Difference]: Finished difference Result 1823 states and 3125 transitions. [2024-12-02 07:48:40,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 07:48:40,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 88 [2024-12-02 07:48:40,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:40,071 INFO L225 Difference]: With dead ends: 1823 [2024-12-02 07:48:40,071 INFO L226 Difference]: Without dead ends: 1359 [2024-12-02 07:48:40,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:48:40,076 INFO L435 NwaCegarLoop]: 603 mSDtfsCounter, 2307 mSDsluCounter, 1977 mSDsCounter, 0 mSdLazyCounter, 4657 mSolverCounterSat, 576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2376 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 5233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 576 IncrementalHoareTripleChecker+Valid, 4657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:40,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2376 Valid, 2580 Invalid, 5233 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [576 Valid, 4657 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-12-02 07:48:40,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2024-12-02 07:48:40,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1302. [2024-12-02 07:48:40,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 1018 states have (on average 1.6640471512770139) internal successors, (1694), 1066 states have internal predecessors, (1694), 229 states have call successors, (229), 54 states have call predecessors, (229), 54 states have return successors, (244), 218 states have call predecessors, (244), 224 states have call successors, (244) [2024-12-02 07:48:40,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 2167 transitions. [2024-12-02 07:48:40,147 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 2167 transitions. Word has length 88 [2024-12-02 07:48:40,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:40,147 INFO L471 AbstractCegarLoop]: Abstraction has 1302 states and 2167 transitions. [2024-12-02 07:48:40,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 07:48:40,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 2167 transitions. [2024-12-02 07:48:40,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 07:48:40,149 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:40,149 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:40,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 07:48:40,150 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:40,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:40,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1431909966, now seen corresponding path program 1 times [2024-12-02 07:48:40,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:40,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240511627] [2024-12-02 07:48:40,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:40,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:40,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:40,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:40,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240511627] [2024-12-02 07:48:40,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240511627] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:40,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:40,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:48:40,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848681691] [2024-12-02 07:48:40,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:40,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:48:40,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:40,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:48:40,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:48:40,380 INFO L87 Difference]: Start difference. First operand 1302 states and 2167 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 07:48:44,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:44,490 INFO L93 Difference]: Finished difference Result 6140 states and 10552 transitions. [2024-12-02 07:48:44,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:48:44,491 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 90 [2024-12-02 07:48:44,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:44,518 INFO L225 Difference]: With dead ends: 6140 [2024-12-02 07:48:44,518 INFO L226 Difference]: Without dead ends: 4883 [2024-12-02 07:48:44,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:48:44,524 INFO L435 NwaCegarLoop]: 806 mSDtfsCounter, 3071 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 5258 mSolverCounterSat, 804 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3202 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 6062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 804 IncrementalHoareTripleChecker+Valid, 5258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:44,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3202 Valid, 2849 Invalid, 6062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [804 Valid, 5258 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-12-02 07:48:44,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4883 states. [2024-12-02 07:48:44,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4883 to 4468. [2024-12-02 07:48:44,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4468 states, 3300 states have (on average 1.66) internal successors, (5478), 3523 states have internal predecessors, (5478), 1004 states have call successors, (1004), 146 states have call predecessors, (1004), 163 states have return successors, (1204), 983 states have call predecessors, (1204), 999 states have call successors, (1204) [2024-12-02 07:48:44,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4468 states to 4468 states and 7686 transitions. [2024-12-02 07:48:44,801 INFO L78 Accepts]: Start accepts. Automaton has 4468 states and 7686 transitions. Word has length 90 [2024-12-02 07:48:44,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:44,801 INFO L471 AbstractCegarLoop]: Abstraction has 4468 states and 7686 transitions. [2024-12-02 07:48:44,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 07:48:44,801 INFO L276 IsEmpty]: Start isEmpty. Operand 4468 states and 7686 transitions. [2024-12-02 07:48:44,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 07:48:44,804 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:44,804 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:44,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 07:48:44,805 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:44,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:44,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1833698032, now seen corresponding path program 1 times [2024-12-02 07:48:44,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:44,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851600045] [2024-12-02 07:48:44,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:44,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:45,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:45,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:45,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851600045] [2024-12-02 07:48:45,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851600045] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:45,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:45,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:48:45,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778923548] [2024-12-02 07:48:45,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:45,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:48:45,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:45,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:48:45,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:48:45,035 INFO L87 Difference]: Start difference. First operand 4468 states and 7686 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 07:48:48,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:48,008 INFO L93 Difference]: Finished difference Result 11887 states and 20569 transitions. [2024-12-02 07:48:48,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:48:48,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 90 [2024-12-02 07:48:48,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:48,074 INFO L225 Difference]: With dead ends: 11887 [2024-12-02 07:48:48,074 INFO L226 Difference]: Without dead ends: 8727 [2024-12-02 07:48:48,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:48:48,092 INFO L435 NwaCegarLoop]: 347 mSDtfsCounter, 2341 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 3539 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2420 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 4022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 3539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:48,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2420 Valid, 1700 Invalid, 4022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 3539 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 07:48:48,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8727 states. [2024-12-02 07:48:48,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8727 to 8278. [2024-12-02 07:48:48,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8278 states, 6171 states have (on average 1.659536541889483) internal successors, (10241), 6572 states have internal predecessors, (10241), 1776 states have call successors, (1776), 269 states have call predecessors, (1776), 330 states have return successors, (2254), 1738 states have call predecessors, (2254), 1771 states have call successors, (2254) [2024-12-02 07:48:48,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8278 states to 8278 states and 14271 transitions. [2024-12-02 07:48:48,838 INFO L78 Accepts]: Start accepts. Automaton has 8278 states and 14271 transitions. Word has length 90 [2024-12-02 07:48:48,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:48,839 INFO L471 AbstractCegarLoop]: Abstraction has 8278 states and 14271 transitions. [2024-12-02 07:48:48,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 07:48:48,839 INFO L276 IsEmpty]: Start isEmpty. Operand 8278 states and 14271 transitions. [2024-12-02 07:48:48,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 07:48:48,842 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:48,844 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:48,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 07:48:48,844 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:48,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:48,845 INFO L85 PathProgramCache]: Analyzing trace with hash -967511433, now seen corresponding path program 1 times [2024-12-02 07:48:48,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:48,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483346172] [2024-12-02 07:48:48,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:48,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:48,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:48,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:48,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483346172] [2024-12-02 07:48:48,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483346172] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:48,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:48,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:48:48,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637491915] [2024-12-02 07:48:48,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:48,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:48:48,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:48,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:48:48,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:48:48,963 INFO L87 Difference]: Start difference. First operand 8278 states and 14271 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 07:48:49,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:49,542 INFO L93 Difference]: Finished difference Result 15170 states and 26213 transitions. [2024-12-02 07:48:49,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:48:49,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 95 [2024-12-02 07:48:49,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:49,629 INFO L225 Difference]: With dead ends: 15170 [2024-12-02 07:48:49,629 INFO L226 Difference]: Without dead ends: 8365 [2024-12-02 07:48:49,713 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:48:49,714 INFO L435 NwaCegarLoop]: 824 mSDtfsCounter, 0 mSDsluCounter, 2442 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:49,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3266 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:48:49,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8365 states. [2024-12-02 07:48:50,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8365 to 8351. [2024-12-02 07:48:50,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8351 states, 6227 states have (on average 1.6531234944596114) internal successors, (10294), 6627 states have internal predecessors, (10294), 1773 states have call successors, (1773), 269 states have call predecessors, (1773), 350 states have return successors, (2317), 1756 states have call predecessors, (2317), 1768 states have call successors, (2317) [2024-12-02 07:48:50,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8351 states to 8351 states and 14384 transitions. [2024-12-02 07:48:50,376 INFO L78 Accepts]: Start accepts. Automaton has 8351 states and 14384 transitions. Word has length 95 [2024-12-02 07:48:50,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:50,376 INFO L471 AbstractCegarLoop]: Abstraction has 8351 states and 14384 transitions. [2024-12-02 07:48:50,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 07:48:50,378 INFO L276 IsEmpty]: Start isEmpty. Operand 8351 states and 14384 transitions. [2024-12-02 07:48:50,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 07:48:50,381 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:50,381 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:50,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 07:48:50,381 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:50,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:50,382 INFO L85 PathProgramCache]: Analyzing trace with hash -99485204, now seen corresponding path program 1 times [2024-12-02 07:48:50,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:50,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135400880] [2024-12-02 07:48:50,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:50,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:50,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:48:50,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:50,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135400880] [2024-12-02 07:48:50,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135400880] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:50,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:50,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:48:50,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901481426] [2024-12-02 07:48:50,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:50,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:48:50,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:50,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:48:50,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:48:50,588 INFO L87 Difference]: Start difference. First operand 8351 states and 14384 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-12-02 07:48:51,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:51,487 INFO L93 Difference]: Finished difference Result 16396 states and 28686 transitions. [2024-12-02 07:48:51,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:48:51,488 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 102 [2024-12-02 07:48:51,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:51,555 INFO L225 Difference]: With dead ends: 16396 [2024-12-02 07:48:51,555 INFO L226 Difference]: Without dead ends: 8499 [2024-12-02 07:48:51,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:48:51,595 INFO L435 NwaCegarLoop]: 873 mSDtfsCounter, 218 mSDsluCounter, 3225 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 4098 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:51,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 4098 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:48:51,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8499 states. [2024-12-02 07:48:52,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8499 to 8375. [2024-12-02 07:48:52,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8375 states, 6248 states have (on average 1.6317221510883482) internal successors, (10195), 6651 states have internal predecessors, (10195), 1773 states have call successors, (1773), 269 states have call predecessors, (1773), 353 states have return successors, (2329), 1756 states have call predecessors, (2329), 1768 states have call successors, (2329) [2024-12-02 07:48:52,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8375 states to 8375 states and 14297 transitions. [2024-12-02 07:48:52,193 INFO L78 Accepts]: Start accepts. Automaton has 8375 states and 14297 transitions. Word has length 102 [2024-12-02 07:48:52,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:52,194 INFO L471 AbstractCegarLoop]: Abstraction has 8375 states and 14297 transitions. [2024-12-02 07:48:52,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-12-02 07:48:52,194 INFO L276 IsEmpty]: Start isEmpty. Operand 8375 states and 14297 transitions. [2024-12-02 07:48:52,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 07:48:52,196 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:52,196 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:52,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 07:48:52,196 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:52,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:52,197 INFO L85 PathProgramCache]: Analyzing trace with hash 613220060, now seen corresponding path program 1 times [2024-12-02 07:48:52,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:52,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495196895] [2024-12-02 07:48:52,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:52,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:52,348 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:48:52,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:52,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495196895] [2024-12-02 07:48:52,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495196895] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:52,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:52,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:48:52,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442900019] [2024-12-02 07:48:52,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:52,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:48:52,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:52,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:48:52,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:48:52,350 INFO L87 Difference]: Start difference. First operand 8375 states and 14297 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 07:48:55,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:55,060 INFO L93 Difference]: Finished difference Result 16031 states and 27400 transitions. [2024-12-02 07:48:55,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 07:48:55,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 107 [2024-12-02 07:48:55,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:55,112 INFO L225 Difference]: With dead ends: 16031 [2024-12-02 07:48:55,112 INFO L226 Difference]: Without dead ends: 9145 [2024-12-02 07:48:55,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:48:55,134 INFO L435 NwaCegarLoop]: 369 mSDtfsCounter, 2063 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 3042 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2139 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 3498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 3042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:55,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2139 Valid, 1638 Invalid, 3498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 3042 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 07:48:55,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9145 states. [2024-12-02 07:48:55,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9145 to 8610. [2024-12-02 07:48:55,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8610 states, 6423 states have (on average 1.6213607348591002) internal successors, (10414), 6844 states have internal predecessors, (10414), 1793 states have call successors, (1793), 294 states have call predecessors, (1793), 393 states have return successors, (2421), 1774 states have call predecessors, (2421), 1788 states have call successors, (2421) [2024-12-02 07:48:55,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8610 states to 8610 states and 14628 transitions. [2024-12-02 07:48:55,494 INFO L78 Accepts]: Start accepts. Automaton has 8610 states and 14628 transitions. Word has length 107 [2024-12-02 07:48:55,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:55,494 INFO L471 AbstractCegarLoop]: Abstraction has 8610 states and 14628 transitions. [2024-12-02 07:48:55,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 07:48:55,494 INFO L276 IsEmpty]: Start isEmpty. Operand 8610 states and 14628 transitions. [2024-12-02 07:48:55,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 07:48:55,495 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:55,496 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:55,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 07:48:55,496 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:55,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:55,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1764590223, now seen corresponding path program 1 times [2024-12-02 07:48:55,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:55,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014149163] [2024-12-02 07:48:55,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:55,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:55,580 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 07:48:55,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:55,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014149163] [2024-12-02 07:48:55,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014149163] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:55,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:55,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:48:55,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052729394] [2024-12-02 07:48:55,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:55,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:48:55,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:55,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:48:55,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:48:55,581 INFO L87 Difference]: Start difference. First operand 8610 states and 14628 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 07:48:56,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:56,122 INFO L93 Difference]: Finished difference Result 19280 states and 32904 transitions. [2024-12-02 07:48:56,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:48:56,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2024-12-02 07:48:56,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:56,190 INFO L225 Difference]: With dead ends: 19280 [2024-12-02 07:48:56,190 INFO L226 Difference]: Without dead ends: 12159 [2024-12-02 07:48:56,215 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:48:56,215 INFO L435 NwaCegarLoop]: 1335 mSDtfsCounter, 758 mSDsluCounter, 3461 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 4796 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:56,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 4796 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:48:56,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12159 states. [2024-12-02 07:48:56,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12159 to 11485. [2024-12-02 07:48:56,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11485 states, 8577 states have (on average 1.6309898565932144) internal successors, (13989), 9125 states have internal predecessors, (13989), 2408 states have call successors, (2408), 381 states have call predecessors, (2408), 499 states have return successors, (3193), 2398 states have call predecessors, (3193), 2403 states have call successors, (3193) [2024-12-02 07:48:56,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11485 states to 11485 states and 19590 transitions. [2024-12-02 07:48:56,920 INFO L78 Accepts]: Start accepts. Automaton has 11485 states and 19590 transitions. Word has length 112 [2024-12-02 07:48:56,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:56,921 INFO L471 AbstractCegarLoop]: Abstraction has 11485 states and 19590 transitions. [2024-12-02 07:48:56,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 07:48:56,921 INFO L276 IsEmpty]: Start isEmpty. Operand 11485 states and 19590 transitions. [2024-12-02 07:48:56,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 07:48:56,923 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:56,923 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:56,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 07:48:56,923 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:56,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:56,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1545735505, now seen corresponding path program 1 times [2024-12-02 07:48:56,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:56,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288108321] [2024-12-02 07:48:56,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:56,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:57,032 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 07:48:57,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:57,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288108321] [2024-12-02 07:48:57,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288108321] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:57,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:57,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:48:57,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731510759] [2024-12-02 07:48:57,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:57,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:48:57,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:57,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:48:57,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:48:57,035 INFO L87 Difference]: Start difference. First operand 11485 states and 19590 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 07:48:57,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:57,827 INFO L93 Difference]: Finished difference Result 11613 states and 19816 transitions. [2024-12-02 07:48:57,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:48:57,828 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2024-12-02 07:48:57,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:57,924 INFO L225 Difference]: With dead ends: 11613 [2024-12-02 07:48:57,925 INFO L226 Difference]: Without dead ends: 11598 [2024-12-02 07:48:57,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:48:57,939 INFO L435 NwaCegarLoop]: 806 mSDtfsCounter, 886 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:57,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 2895 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:48:57,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11598 states. [2024-12-02 07:48:58,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11598 to 11493. [2024-12-02 07:48:58,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11493 states, 8585 states have (on average 1.6304018637157833) internal successors, (13997), 9133 states have internal predecessors, (13997), 2408 states have call successors, (2408), 381 states have call predecessors, (2408), 499 states have return successors, (3193), 2398 states have call predecessors, (3193), 2403 states have call successors, (3193) [2024-12-02 07:48:58,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11493 states to 11493 states and 19598 transitions. [2024-12-02 07:48:58,751 INFO L78 Accepts]: Start accepts. Automaton has 11493 states and 19598 transitions. Word has length 112 [2024-12-02 07:48:58,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:48:58,752 INFO L471 AbstractCegarLoop]: Abstraction has 11493 states and 19598 transitions. [2024-12-02 07:48:58,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 07:48:58,752 INFO L276 IsEmpty]: Start isEmpty. Operand 11493 states and 19598 transitions. [2024-12-02 07:48:58,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 07:48:58,754 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:48:58,754 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:48:58,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 07:48:58,754 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:48:58,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:48:58,755 INFO L85 PathProgramCache]: Analyzing trace with hash -2036830294, now seen corresponding path program 1 times [2024-12-02 07:48:58,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:48:58,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934682370] [2024-12-02 07:48:58,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:48:58,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:48:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:48:58,972 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 07:48:58,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:48:58,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934682370] [2024-12-02 07:48:58,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934682370] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:48:58,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:48:58,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:48:58,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900597259] [2024-12-02 07:48:58,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:48:58,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:48:58,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:48:58,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:48:58,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:48:58,974 INFO L87 Difference]: Start difference. First operand 11493 states and 19598 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 07:48:59,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:48:59,418 INFO L93 Difference]: Finished difference Result 11508 states and 19616 transitions. [2024-12-02 07:48:59,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:48:59,419 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-12-02 07:48:59,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:48:59,516 INFO L225 Difference]: With dead ends: 11508 [2024-12-02 07:48:59,516 INFO L226 Difference]: Without dead ends: 11493 [2024-12-02 07:48:59,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:48:59,529 INFO L435 NwaCegarLoop]: 811 mSDtfsCounter, 0 mSDsluCounter, 4049 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4860 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:48:59,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4860 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:48:59,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11493 states. [2024-12-02 07:49:00,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11493 to 11493. [2024-12-02 07:49:00,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11493 states, 8585 states have (on average 1.6294700058241118) internal successors, (13989), 9133 states have internal predecessors, (13989), 2408 states have call successors, (2408), 381 states have call predecessors, (2408), 499 states have return successors, (3193), 2398 states have call predecessors, (3193), 2403 states have call successors, (3193) [2024-12-02 07:49:00,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11493 states to 11493 states and 19590 transitions. [2024-12-02 07:49:00,183 INFO L78 Accepts]: Start accepts. Automaton has 11493 states and 19590 transitions. Word has length 118 [2024-12-02 07:49:00,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:49:00,184 INFO L471 AbstractCegarLoop]: Abstraction has 11493 states and 19590 transitions. [2024-12-02 07:49:00,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 07:49:00,184 INFO L276 IsEmpty]: Start isEmpty. Operand 11493 states and 19590 transitions. [2024-12-02 07:49:00,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 07:49:00,188 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:49:00,188 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:49:00,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 07:49:00,189 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:49:00,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:49:00,189 INFO L85 PathProgramCache]: Analyzing trace with hash -447949208, now seen corresponding path program 1 times [2024-12-02 07:49:00,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:49:00,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717967447] [2024-12-02 07:49:00,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:00,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:49:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:00,412 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 07:49:00,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:49:00,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717967447] [2024-12-02 07:49:00,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717967447] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:49:00,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:49:00,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:49:00,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915568057] [2024-12-02 07:49:00,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:49:00,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:49:00,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:49:00,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:49:00,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:49:00,414 INFO L87 Difference]: Start difference. First operand 11493 states and 19590 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 07:49:02,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:49:02,743 INFO L93 Difference]: Finished difference Result 22971 states and 39271 transitions. [2024-12-02 07:49:02,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:49:02,744 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 129 [2024-12-02 07:49:02,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:49:02,832 INFO L225 Difference]: With dead ends: 22971 [2024-12-02 07:49:02,832 INFO L226 Difference]: Without dead ends: 11535 [2024-12-02 07:49:02,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:49:02,887 INFO L435 NwaCegarLoop]: 372 mSDtfsCounter, 1223 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 2571 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 2897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 2571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:49:02,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1223 Valid, 1575 Invalid, 2897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 2571 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 07:49:02,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11535 states. [2024-12-02 07:49:03,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11535 to 11493. [2024-12-02 07:49:03,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11493 states, 8585 states have (on average 1.6285381479324403) internal successors, (13981), 9133 states have internal predecessors, (13981), 2408 states have call successors, (2408), 381 states have call predecessors, (2408), 499 states have return successors, (3193), 2398 states have call predecessors, (3193), 2403 states have call successors, (3193) [2024-12-02 07:49:03,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11493 states to 11493 states and 19582 transitions. [2024-12-02 07:49:03,798 INFO L78 Accepts]: Start accepts. Automaton has 11493 states and 19582 transitions. Word has length 129 [2024-12-02 07:49:03,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:49:03,798 INFO L471 AbstractCegarLoop]: Abstraction has 11493 states and 19582 transitions. [2024-12-02 07:49:03,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 07:49:03,798 INFO L276 IsEmpty]: Start isEmpty. Operand 11493 states and 19582 transitions. [2024-12-02 07:49:03,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 07:49:03,802 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:49:03,802 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:49:03,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 07:49:03,802 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:49:03,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:49:03,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1954630213, now seen corresponding path program 1 times [2024-12-02 07:49:03,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:49:03,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149733371] [2024-12-02 07:49:03,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:03,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:49:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:04,084 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 07:49:04,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:49:04,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149733371] [2024-12-02 07:49:04,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149733371] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:49:04,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:49:04,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:49:04,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903651965] [2024-12-02 07:49:04,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:49:04,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:49:04,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:49:04,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:49:04,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:49:04,087 INFO L87 Difference]: Start difference. First operand 11493 states and 19582 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 5 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2024-12-02 07:49:08,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:49:08,500 INFO L93 Difference]: Finished difference Result 24661 states and 41708 transitions. [2024-12-02 07:49:08,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 07:49:08,500 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 5 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 140 [2024-12-02 07:49:08,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:49:08,593 INFO L225 Difference]: With dead ends: 24661 [2024-12-02 07:49:08,593 INFO L226 Difference]: Without dead ends: 14480 [2024-12-02 07:49:08,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2024-12-02 07:49:08,634 INFO L435 NwaCegarLoop]: 519 mSDtfsCounter, 2058 mSDsluCounter, 2926 mSDsCounter, 0 mSdLazyCounter, 6735 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2143 SdHoareTripleChecker+Valid, 3445 SdHoareTripleChecker+Invalid, 7156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 6735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:49:08,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2143 Valid, 3445 Invalid, 7156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 6735 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 07:49:08,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14480 states. [2024-12-02 07:49:09,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14480 to 13255. [2024-12-02 07:49:09,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13255 states, 9977 states have (on average 1.6107046206274431) internal successors, (16070), 10590 states have internal predecessors, (16070), 2641 states have call successors, (2641), 470 states have call predecessors, (2641), 636 states have return successors, (3534), 2607 states have call predecessors, (3534), 2636 states have call successors, (3534) [2024-12-02 07:49:09,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13255 states to 13255 states and 22245 transitions. [2024-12-02 07:49:09,420 INFO L78 Accepts]: Start accepts. Automaton has 13255 states and 22245 transitions. Word has length 140 [2024-12-02 07:49:09,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:49:09,421 INFO L471 AbstractCegarLoop]: Abstraction has 13255 states and 22245 transitions. [2024-12-02 07:49:09,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 5 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2024-12-02 07:49:09,421 INFO L276 IsEmpty]: Start isEmpty. Operand 13255 states and 22245 transitions. [2024-12-02 07:49:09,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 07:49:09,423 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:49:09,423 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:49:09,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 07:49:09,424 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:49:09,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:49:09,424 INFO L85 PathProgramCache]: Analyzing trace with hash -240999101, now seen corresponding path program 1 times [2024-12-02 07:49:09,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:49:09,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13442594] [2024-12-02 07:49:09,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:09,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:49:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:09,532 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 07:49:09,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:49:09,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13442594] [2024-12-02 07:49:09,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13442594] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:49:09,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:49:09,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:49:09,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179839550] [2024-12-02 07:49:09,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:49:09,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:49:09,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:49:09,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:49:09,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:49:09,534 INFO L87 Difference]: Start difference. First operand 13255 states and 22245 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 07:49:12,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:49:12,815 INFO L93 Difference]: Finished difference Result 43688 states and 75588 transitions. [2024-12-02 07:49:12,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:49:12,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 138 [2024-12-02 07:49:12,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:49:13,013 INFO L225 Difference]: With dead ends: 43688 [2024-12-02 07:49:13,013 INFO L226 Difference]: Without dead ends: 30478 [2024-12-02 07:49:13,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:49:13,074 INFO L435 NwaCegarLoop]: 396 mSDtfsCounter, 1833 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1905 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:49:13,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1905 Valid, 917 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 07:49:13,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30478 states. [2024-12-02 07:49:14,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30478 to 29557. [2024-12-02 07:49:14,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29557 states, 21670 states have (on average 1.6035071527457314) internal successors, (34748), 23152 states have internal predecessors, (34748), 6549 states have call successors, (6549), 935 states have call predecessors, (6549), 1337 states have return successors, (10140), 6510 states have call predecessors, (10140), 6544 states have call successors, (10140) [2024-12-02 07:49:14,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29557 states to 29557 states and 51437 transitions. [2024-12-02 07:49:14,933 INFO L78 Accepts]: Start accepts. Automaton has 29557 states and 51437 transitions. Word has length 138 [2024-12-02 07:49:14,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:49:14,934 INFO L471 AbstractCegarLoop]: Abstraction has 29557 states and 51437 transitions. [2024-12-02 07:49:14,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 07:49:14,934 INFO L276 IsEmpty]: Start isEmpty. Operand 29557 states and 51437 transitions. [2024-12-02 07:49:14,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 07:49:14,939 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:49:14,939 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:49:14,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 07:49:14,939 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:49:14,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:49:14,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1118838887, now seen corresponding path program 1 times [2024-12-02 07:49:14,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:49:14,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049967976] [2024-12-02 07:49:14,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:14,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:49:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:15,049 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 07:49:15,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:49:15,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049967976] [2024-12-02 07:49:15,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049967976] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:49:15,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:49:15,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:49:15,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833538778] [2024-12-02 07:49:15,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:49:15,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:49:15,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:49:15,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:49:15,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:49:15,050 INFO L87 Difference]: Start difference. First operand 29557 states and 51437 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 07:49:21,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:49:21,540 INFO L93 Difference]: Finished difference Result 99314 states and 180387 transitions. [2024-12-02 07:49:21,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:49:21,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 139 [2024-12-02 07:49:21,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:49:22,066 INFO L225 Difference]: With dead ends: 99314 [2024-12-02 07:49:22,066 INFO L226 Difference]: Without dead ends: 69802 [2024-12-02 07:49:22,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:49:22,229 INFO L435 NwaCegarLoop]: 371 mSDtfsCounter, 1837 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1908 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:49:22,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1908 Valid, 884 Invalid, 1556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 07:49:22,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69802 states. [2024-12-02 07:49:27,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69802 to 67768. [2024-12-02 07:49:27,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67768 states, 48247 states have (on average 1.5945447385329659) internal successors, (76932), 51891 states have internal predecessors, (76932), 16696 states have call successors, (16696), 1865 states have call predecessors, (16696), 2824 states have return successors, (30392), 16695 states have call predecessors, (30392), 16691 states have call successors, (30392) [2024-12-02 07:49:27,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67768 states to 67768 states and 124020 transitions. [2024-12-02 07:49:27,995 INFO L78 Accepts]: Start accepts. Automaton has 67768 states and 124020 transitions. Word has length 139 [2024-12-02 07:49:27,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:49:27,995 INFO L471 AbstractCegarLoop]: Abstraction has 67768 states and 124020 transitions. [2024-12-02 07:49:27,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 07:49:27,995 INFO L276 IsEmpty]: Start isEmpty. Operand 67768 states and 124020 transitions. [2024-12-02 07:49:28,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 07:49:28,004 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:49:28,004 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:49:28,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 07:49:28,004 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:49:28,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:49:28,004 INFO L85 PathProgramCache]: Analyzing trace with hash 324147461, now seen corresponding path program 1 times [2024-12-02 07:49:28,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:49:28,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681405933] [2024-12-02 07:49:28,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:28,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:49:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:28,236 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 07:49:28,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:49:28,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681405933] [2024-12-02 07:49:28,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681405933] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:49:28,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:49:28,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:49:28,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342603772] [2024-12-02 07:49:28,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:49:28,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:49:28,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:49:28,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:49:28,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:49:28,239 INFO L87 Difference]: Start difference. First operand 67768 states and 124020 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 07:49:41,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:49:41,414 INFO L93 Difference]: Finished difference Result 231773 states and 449174 transitions. [2024-12-02 07:49:41,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:49:41,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 140 [2024-12-02 07:49:41,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:49:42,775 INFO L225 Difference]: With dead ends: 231773 [2024-12-02 07:49:42,775 INFO L226 Difference]: Without dead ends: 164050 [2024-12-02 07:49:43,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:49:43,105 INFO L435 NwaCegarLoop]: 371 mSDtfsCounter, 1825 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1895 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:49:43,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1895 Valid, 881 Invalid, 1558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 07:49:43,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164050 states. [2024-12-02 07:49:53,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164050 to 159945. [2024-12-02 07:49:54,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159945 states, 110433 states have (on average 1.5843271485878316) internal successors, (174962), 119536 states have internal predecessors, (174962), 43509 states have call successors, (43509), 3725 states have call predecessors, (43509), 6002 states have return successors, (93488), 43728 states have call predecessors, (93488), 43504 states have call successors, (93488) [2024-12-02 07:49:55,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159945 states to 159945 states and 311959 transitions. [2024-12-02 07:49:55,907 INFO L78 Accepts]: Start accepts. Automaton has 159945 states and 311959 transitions. Word has length 140 [2024-12-02 07:49:55,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:49:55,907 INFO L471 AbstractCegarLoop]: Abstraction has 159945 states and 311959 transitions. [2024-12-02 07:49:55,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 07:49:55,907 INFO L276 IsEmpty]: Start isEmpty. Operand 159945 states and 311959 transitions. [2024-12-02 07:49:55,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 07:49:55,916 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:49:55,917 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:49:55,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 07:49:55,917 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:49:55,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:49:55,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1453689648, now seen corresponding path program 1 times [2024-12-02 07:49:55,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:49:55,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124567862] [2024-12-02 07:49:55,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:55,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:49:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:49:56,058 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 07:49:56,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:49:56,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124567862] [2024-12-02 07:49:56,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124567862] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:49:56,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:49:56,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:49:56,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609489589] [2024-12-02 07:49:56,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:49:56,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:49:56,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:49:56,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:49:56,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:49:56,059 INFO L87 Difference]: Start difference. First operand 159945 states and 311959 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 07:50:31,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:50:31,071 INFO L93 Difference]: Finished difference Result 555134 states and 1167527 transitions. [2024-12-02 07:50:31,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:50:31,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 143 [2024-12-02 07:50:31,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:50:35,424 INFO L225 Difference]: With dead ends: 555134 [2024-12-02 07:50:35,424 INFO L226 Difference]: Without dead ends: 395234 [2024-12-02 07:50:36,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:50:36,932 INFO L435 NwaCegarLoop]: 368 mSDtfsCounter, 1807 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1874 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:50:36,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1874 Valid, 878 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [376 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 07:50:37,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395234 states. [2024-12-02 07:51:09,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395234 to 388530. [2024-12-02 07:51:10,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388530 states, 260419 states have (on average 1.5733721425856024) internal successors, (409736), 283485 states have internal predecessors, (409736), 115242 states have call successors, (115242), 7445 states have call predecessors, (115242), 12868 states have return successors, (291956), 116333 states have call predecessors, (291956), 115237 states have call successors, (291956) [2024-12-02 07:51:15,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388530 states to 388530 states and 816934 transitions. [2024-12-02 07:51:15,984 INFO L78 Accepts]: Start accepts. Automaton has 388530 states and 816934 transitions. Word has length 143 [2024-12-02 07:51:15,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:51:15,985 INFO L471 AbstractCegarLoop]: Abstraction has 388530 states and 816934 transitions. [2024-12-02 07:51:15,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 07:51:15,985 INFO L276 IsEmpty]: Start isEmpty. Operand 388530 states and 816934 transitions. [2024-12-02 07:51:15,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 07:51:15,999 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:51:15,999 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:51:15,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 07:51:16,000 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:51:16,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:51:16,000 INFO L85 PathProgramCache]: Analyzing trace with hash -2030603065, now seen corresponding path program 1 times [2024-12-02 07:51:16,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:51:16,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049764646] [2024-12-02 07:51:16,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:16,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:51:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:16,165 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 07:51:16,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:51:16,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049764646] [2024-12-02 07:51:16,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049764646] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:51:16,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:51:16,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:51:16,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198731060] [2024-12-02 07:51:16,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:51:16,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:51:16,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:51:16,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:51:16,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:51:16,168 INFO L87 Difference]: Start difference. First operand 388530 states and 816934 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)