./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec2_product18.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_a20a9521-a6ee-4433-ac02-837534d2499f/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a9521-a6ee-4433-ac02-837534d2499f/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_a20a9521-a6ee-4433-ac02-837534d2499f/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a9521-a6ee-4433-ac02-837534d2499f/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec2_product18.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a9521-a6ee-4433-ac02-837534d2499f/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_a20a9521-a6ee-4433-ac02-837534d2499f/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 4d9d31939acfea5ee9b43b1f06257671943c7251c27c351c5e445aa6495fd098 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:25:00,804 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:25:00,859 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a9521-a6ee-4433-ac02-837534d2499f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:25:00,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:25:00,864 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:25:00,884 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:25:00,884 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:25:00,885 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:25:00,885 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:25:00,885 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:25:00,885 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:25:00,885 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:25:00,886 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:25:00,886 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:25:00,886 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:25:00,886 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:25:00,886 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:25:00,886 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:25:00,886 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:25:00,886 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:25:00,887 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:25:00,887 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:25:00,887 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:25:00,887 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:25:00,887 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:25:00,887 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:25:00,887 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:25:00,887 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:25:00,887 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:25:00,887 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:25:00,888 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:25:00,888 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:25:00,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:25:00,888 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:25:00,888 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:25:00,888 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:25:00,888 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:25:00,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:25:00,888 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:25:00,888 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:25:00,889 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:25:00,889 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:25:00,889 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:25:00,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:25:00,889 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:25:00,889 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:25:00,889 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:25:00,889 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:25:00,889 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_a20a9521-a6ee-4433-ac02-837534d2499f/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 -> 4d9d31939acfea5ee9b43b1f06257671943c7251c27c351c5e445aa6495fd098 [2024-12-02 11:25:01,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:25:01,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:25:01,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:25:01,109 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:25:01,109 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:25:01,111 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a9521-a6ee-4433-ac02-837534d2499f/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/elevator_spec2_product18.cil.c [2024-12-02 11:25:03,744 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a9521-a6ee-4433-ac02-837534d2499f/bin/uautomizer-verify-84ZbGMXZE1/data/e81f2ad5d/f9d194bc369c452f89c6ec1ddb561737/FLAG191e65863 [2024-12-02 11:25:04,048 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:25:04,049 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a9521-a6ee-4433-ac02-837534d2499f/sv-benchmarks/c/product-lines/elevator_spec2_product18.cil.c [2024-12-02 11:25:04,069 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a9521-a6ee-4433-ac02-837534d2499f/bin/uautomizer-verify-84ZbGMXZE1/data/e81f2ad5d/f9d194bc369c452f89c6ec1ddb561737/FLAG191e65863 [2024-12-02 11:25:04,084 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a9521-a6ee-4433-ac02-837534d2499f/bin/uautomizer-verify-84ZbGMXZE1/data/e81f2ad5d/f9d194bc369c452f89c6ec1ddb561737 [2024-12-02 11:25:04,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:25:04,088 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:25:04,090 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:25:04,090 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:25:04,094 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:25:04,095 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:25:04" (1/1) ... [2024-12-02 11:25:04,096 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@138c4246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:04, skipping insertion in model container [2024-12-02 11:25:04,096 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:25:04" (1/1) ... [2024-12-02 11:25:04,144 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:25:04,464 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_a20a9521-a6ee-4433-ac02-837534d2499f/sv-benchmarks/c/product-lines/elevator_spec2_product18.cil.c[38051,38064] [2024-12-02 11:25:04,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:25:04,574 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:25:04,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [48] [2024-12-02 11:25:04,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [150] [2024-12-02 11:25:04,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [164] [2024-12-02 11:25:04,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [284] [2024-12-02 11:25:04,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [322] [2024-12-02 11:25:04,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1825] [2024-12-02 11:25:04,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1834] [2024-12-02 11:25:04,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2200] [2024-12-02 11:25:04,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [2552] [2024-12-02 11:25:04,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2733] [2024-12-02 11:25:04,639 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_a20a9521-a6ee-4433-ac02-837534d2499f/sv-benchmarks/c/product-lines/elevator_spec2_product18.cil.c[38051,38064] [2024-12-02 11:25:04,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:25:04,706 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:25:04,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:04 WrapperNode [2024-12-02 11:25:04,707 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:25:04,708 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:25:04,708 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:25:04,708 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:25:04,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:04" (1/1) ... [2024-12-02 11:25:04,735 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:04" (1/1) ... [2024-12-02 11:25:04,769 INFO L138 Inliner]: procedures = 92, calls = 338, calls flagged for inlining = 26, calls inlined = 22, statements flattened = 815 [2024-12-02 11:25:04,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:25:04,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:25:04,770 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:25:04,770 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:25:04,779 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:04" (1/1) ... [2024-12-02 11:25:04,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:04" (1/1) ... [2024-12-02 11:25:04,784 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:04" (1/1) ... [2024-12-02 11:25:04,807 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 11:25:04,807 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:04" (1/1) ... [2024-12-02 11:25:04,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:04" (1/1) ... [2024-12-02 11:25:04,823 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:04" (1/1) ... [2024-12-02 11:25:04,825 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:04" (1/1) ... [2024-12-02 11:25:04,836 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:04" (1/1) ... [2024-12-02 11:25:04,841 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:04" (1/1) ... [2024-12-02 11:25:04,844 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:04" (1/1) ... [2024-12-02 11:25:04,853 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:25:04,854 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:25:04,854 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:25:04,854 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:25:04,855 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:04" (1/1) ... [2024-12-02 11:25:04,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:25:04,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a9521-a6ee-4433-ac02-837534d2499f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:25:04,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a9521-a6ee-4433-ac02-837534d2499f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:25:04,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20a9521-a6ee-4433-ac02-837534d2499f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:25:04,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:25:04,921 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-12-02 11:25:04,921 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-12-02 11:25:04,922 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-12-02 11:25:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-12-02 11:25:04,922 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-12-02 11:25:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-12-02 11:25:04,922 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-12-02 11:25:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-12-02 11:25:04,922 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-12-02 11:25:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-12-02 11:25:04,922 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 11:25:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 11:25:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 11:25:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 11:25:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-12-02 11:25:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-12-02 11:25:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-12-02 11:25:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-12-02 11:25:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-12-02 11:25:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-12-02 11:25:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-12-02 11:25:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-12-02 11:25:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-12-02 11:25:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-12-02 11:25:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-12-02 11:25:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-12-02 11:25:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-12-02 11:25:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-12-02 11:25:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-12-02 11:25:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-12-02 11:25:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-12-02 11:25:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-12-02 11:25:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-12-02 11:25:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-12-02 11:25:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:25:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 11:25:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 11:25:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 11:25:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 11:25:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 11:25:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 11:25:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 11:25:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 11:25:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 11:25:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 11:25:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 11:25:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 11:25:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 11:25:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 11:25:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 11:25:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 11:25:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 11:25:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 11:25:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 11:25:04,926 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__weight [2024-12-02 11:25:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__weight [2024-12-02 11:25:04,926 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-12-02 11:25:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-12-02 11:25:04,926 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-12-02 11:25:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-12-02 11:25:04,926 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-12-02 11:25:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-12-02 11:25:04,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:25:04,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:25:04,927 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-12-02 11:25:04,927 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-12-02 11:25:05,086 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:25:05,088 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:25:06,221 INFO L? ?]: Removed 429 outVars from TransFormulas that were not future-live. [2024-12-02 11:25:06,221 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:25:06,244 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:25:06,244 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:25:06,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:25:06 BoogieIcfgContainer [2024-12-02 11:25:06,244 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:25:06,247 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:25:06,247 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:25:06,252 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:25:06,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:25:04" (1/3) ... [2024-12-02 11:25:06,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68919844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:25:06, skipping insertion in model container [2024-12-02 11:25:06,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:04" (2/3) ... [2024-12-02 11:25:06,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68919844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:25:06, skipping insertion in model container [2024-12-02 11:25:06,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:25:06" (3/3) ... [2024-12-02 11:25:06,254 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product18.cil.c [2024-12-02 11:25:06,269 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:25:06,271 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec2_product18.cil.c that has 23 procedures, 540 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:25:06,337 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:25:06,348 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;@68863067, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:25:06,348 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:25:06,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 540 states, 425 states have (on average 1.708235294117647) internal successors, (726), 448 states have internal predecessors, (726), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 84 states have call predecessors, (91), 91 states have call successors, (91) [2024-12-02 11:25:06,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 11:25:06,366 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:06,367 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] [2024-12-02 11:25:06,367 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:06,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:06,371 INFO L85 PathProgramCache]: Analyzing trace with hash -589342243, now seen corresponding path program 1 times [2024-12-02 11:25:06,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:06,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368031307] [2024-12-02 11:25:06,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:06,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:06,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:25:06,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:06,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368031307] [2024-12-02 11:25:06,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368031307] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:06,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:06,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:25:06,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270624133] [2024-12-02 11:25:06,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:06,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:25:06,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:06,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:25:06,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:25:06,846 INFO L87 Difference]: Start difference. First operand has 540 states, 425 states have (on average 1.708235294117647) internal successors, (726), 448 states have internal predecessors, (726), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 84 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:06,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:06,979 INFO L93 Difference]: Finished difference Result 1060 states and 1791 transitions. [2024-12-02 11:25:06,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:25:06,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2024-12-02 11:25:06,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:06,996 INFO L225 Difference]: With dead ends: 1060 [2024-12-02 11:25:06,996 INFO L226 Difference]: Without dead ends: 532 [2024-12-02 11:25:07,003 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 11:25:07,005 INFO L435 NwaCegarLoop]: 887 mSDtfsCounter, 5 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2657 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 11:25:07,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2657 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:25:07,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-12-02 11:25:07,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-12-02 11:25:07,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 419 states have (on average 1.704057279236277) internal successors, (714), 440 states have internal predecessors, (714), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 11:25:07,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 891 transitions. [2024-12-02 11:25:07,079 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 891 transitions. Word has length 56 [2024-12-02 11:25:07,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:07,079 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 891 transitions. [2024-12-02 11:25:07,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:07,080 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 891 transitions. [2024-12-02 11:25:07,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 11:25:07,083 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:07,083 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] [2024-12-02 11:25:07,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:25:07,083 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:07,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:07,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1965658962, now seen corresponding path program 1 times [2024-12-02 11:25:07,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:07,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764092886] [2024-12-02 11:25:07,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:07,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:07,257 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 11:25:07,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:07,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764092886] [2024-12-02 11:25:07,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764092886] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:07,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:07,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:25:07,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087294171] [2024-12-02 11:25:07,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:07,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:25:07,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:07,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:25:07,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:25:07,260 INFO L87 Difference]: Start difference. First operand 532 states and 891 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:07,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:07,339 INFO L93 Difference]: Finished difference Result 1046 states and 1759 transitions. [2024-12-02 11:25:07,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:25:07,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 58 [2024-12-02 11:25:07,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:07,346 INFO L225 Difference]: With dead ends: 1046 [2024-12-02 11:25:07,346 INFO L226 Difference]: Without dead ends: 532 [2024-12-02 11:25:07,348 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 11:25:07,349 INFO L435 NwaCegarLoop]: 880 mSDtfsCounter, 4 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2636 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 11:25:07,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2636 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:25:07,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-12-02 11:25:07,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-12-02 11:25:07,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 419 states have (on average 1.701670644391408) internal successors, (713), 440 states have internal predecessors, (713), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 11:25:07,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 890 transitions. [2024-12-02 11:25:07,380 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 890 transitions. Word has length 58 [2024-12-02 11:25:07,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:07,381 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 890 transitions. [2024-12-02 11:25:07,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:07,381 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 890 transitions. [2024-12-02 11:25:07,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 11:25:07,384 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:07,384 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] [2024-12-02 11:25:07,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:25:07,384 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:07,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:07,385 INFO L85 PathProgramCache]: Analyzing trace with hash 376490054, now seen corresponding path program 1 times [2024-12-02 11:25:07,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:07,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313806360] [2024-12-02 11:25:07,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:07,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:07,518 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 11:25:07,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:07,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313806360] [2024-12-02 11:25:07,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313806360] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:07,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:07,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:25:07,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934352987] [2024-12-02 11:25:07,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:07,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:25:07,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:07,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:25:07,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:25:07,520 INFO L87 Difference]: Start difference. First operand 532 states and 890 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:07,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:07,588 INFO L93 Difference]: Finished difference Result 1046 states and 1758 transitions. [2024-12-02 11:25:07,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:25:07,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 59 [2024-12-02 11:25:07,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:07,595 INFO L225 Difference]: With dead ends: 1046 [2024-12-02 11:25:07,595 INFO L226 Difference]: Without dead ends: 532 [2024-12-02 11:25:07,598 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 11:25:07,599 INFO L435 NwaCegarLoop]: 880 mSDtfsCounter, 3 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2636 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 11:25:07,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2636 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:25:07,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-12-02 11:25:07,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-12-02 11:25:07,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 419 states have (on average 1.6992840095465394) internal successors, (712), 440 states have internal predecessors, (712), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 11:25:07,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 889 transitions. [2024-12-02 11:25:07,627 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 889 transitions. Word has length 59 [2024-12-02 11:25:07,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:07,628 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 889 transitions. [2024-12-02 11:25:07,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:07,628 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 889 transitions. [2024-12-02 11:25:07,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-12-02 11:25:07,629 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:07,629 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:07,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:25:07,630 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:07,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:07,630 INFO L85 PathProgramCache]: Analyzing trace with hash 143866838, now seen corresponding path program 1 times [2024-12-02 11:25:07,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:07,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067965938] [2024-12-02 11:25:07,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:07,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:07,786 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 11:25:07,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:07,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067965938] [2024-12-02 11:25:07,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067965938] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:07,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:07,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:25:07,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914024438] [2024-12-02 11:25:07,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:07,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:25:07,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:07,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:25:07,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:25:07,788 INFO L87 Difference]: Start difference. First operand 532 states and 889 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:07,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:07,854 INFO L93 Difference]: Finished difference Result 1046 states and 1757 transitions. [2024-12-02 11:25:07,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:25:07,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 60 [2024-12-02 11:25:07,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:07,861 INFO L225 Difference]: With dead ends: 1046 [2024-12-02 11:25:07,861 INFO L226 Difference]: Without dead ends: 532 [2024-12-02 11:25:07,864 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 11:25:07,865 INFO L435 NwaCegarLoop]: 880 mSDtfsCounter, 2 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2636 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 11:25:07,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2636 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:25:07,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-12-02 11:25:07,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-12-02 11:25:07,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 419 states have (on average 1.6968973747016707) internal successors, (711), 440 states have internal predecessors, (711), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 11:25:07,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 888 transitions. [2024-12-02 11:25:07,898 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 888 transitions. Word has length 60 [2024-12-02 11:25:07,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:07,898 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 888 transitions. [2024-12-02 11:25:07,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:07,899 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 888 transitions. [2024-12-02 11:25:07,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-12-02 11:25:07,901 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:07,901 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] [2024-12-02 11:25:07,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:25:07,901 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:07,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:07,902 INFO L85 PathProgramCache]: Analyzing trace with hash -985512886, now seen corresponding path program 1 times [2024-12-02 11:25:07,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:07,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064976478] [2024-12-02 11:25:07,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:07,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:08,056 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 11:25:08,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:08,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064976478] [2024-12-02 11:25:08,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064976478] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:08,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:08,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:25:08,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498161224] [2024-12-02 11:25:08,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:08,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:25:08,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:08,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:25:08,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:25:08,059 INFO L87 Difference]: Start difference. First operand 532 states and 888 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:08,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:08,119 INFO L93 Difference]: Finished difference Result 1046 states and 1756 transitions. [2024-12-02 11:25:08,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:25:08,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 61 [2024-12-02 11:25:08,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:08,125 INFO L225 Difference]: With dead ends: 1046 [2024-12-02 11:25:08,125 INFO L226 Difference]: Without dead ends: 532 [2024-12-02 11:25:08,128 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 11:25:08,129 INFO L435 NwaCegarLoop]: 880 mSDtfsCounter, 1 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2636 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 11:25:08,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2636 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:25:08,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-12-02 11:25:08,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-12-02 11:25:08,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 419 states have (on average 1.694510739856802) internal successors, (710), 440 states have internal predecessors, (710), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 11:25:08,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 887 transitions. [2024-12-02 11:25:08,162 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 887 transitions. Word has length 61 [2024-12-02 11:25:08,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:08,162 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 887 transitions. [2024-12-02 11:25:08,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:08,163 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 887 transitions. [2024-12-02 11:25:08,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 11:25:08,165 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:08,165 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:08,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:25:08,165 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:08,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:08,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1550313765, now seen corresponding path program 1 times [2024-12-02 11:25:08,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:08,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479236394] [2024-12-02 11:25:08,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:08,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:08,302 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 11:25:08,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:08,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479236394] [2024-12-02 11:25:08,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479236394] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:08,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:08,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:25:08,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15156574] [2024-12-02 11:25:08,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:08,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:25:08,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:08,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:25:08,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:25:08,304 INFO L87 Difference]: Start difference. First operand 532 states and 887 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:08,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:08,362 INFO L93 Difference]: Finished difference Result 1046 states and 1755 transitions. [2024-12-02 11:25:08,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:25:08,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 62 [2024-12-02 11:25:08,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:08,368 INFO L225 Difference]: With dead ends: 1046 [2024-12-02 11:25:08,368 INFO L226 Difference]: Without dead ends: 532 [2024-12-02 11:25:08,371 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 11:25:08,372 INFO L435 NwaCegarLoop]: 880 mSDtfsCounter, 0 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2636 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 11:25:08,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2636 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:25:08,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-12-02 11:25:08,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-12-02 11:25:08,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 419 states have (on average 1.692124105011933) internal successors, (709), 440 states have internal predecessors, (709), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 11:25:08,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 886 transitions. [2024-12-02 11:25:08,403 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 886 transitions. Word has length 62 [2024-12-02 11:25:08,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:08,404 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 886 transitions. [2024-12-02 11:25:08,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:08,404 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 886 transitions. [2024-12-02 11:25:08,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 11:25:08,406 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:08,406 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:08,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:25:08,406 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:08,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:08,407 INFO L85 PathProgramCache]: Analyzing trace with hash 150426714, now seen corresponding path program 1 times [2024-12-02 11:25:08,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:08,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192280813] [2024-12-02 11:25:08,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:08,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:08,624 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 11:25:08,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:08,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192280813] [2024-12-02 11:25:08,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192280813] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:08,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:08,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:25:08,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481867683] [2024-12-02 11:25:08,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:08,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:25:08,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:08,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:25:08,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:25:08,626 INFO L87 Difference]: Start difference. First operand 532 states and 886 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-12-02 11:25:08,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:08,741 INFO L93 Difference]: Finished difference Result 1006 states and 1679 transitions. [2024-12-02 11:25:08,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:25:08,742 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 62 [2024-12-02 11:25:08,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:08,747 INFO L225 Difference]: With dead ends: 1006 [2024-12-02 11:25:08,747 INFO L226 Difference]: Without dead ends: 526 [2024-12-02 11:25:08,749 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 11:25:08,750 INFO L435 NwaCegarLoop]: 874 mSDtfsCounter, 91 mSDsluCounter, 4288 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5162 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:08,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5162 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:25:08,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-12-02 11:25:08,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2024-12-02 11:25:08,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 413 states have (on average 1.685230024213075) internal successors, (696), 434 states have internal predecessors, (696), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 11:25:08,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 873 transitions. [2024-12-02 11:25:08,773 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 873 transitions. Word has length 62 [2024-12-02 11:25:08,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:08,773 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 873 transitions. [2024-12-02 11:25:08,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-12-02 11:25:08,774 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 873 transitions. [2024-12-02 11:25:08,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-12-02 11:25:08,775 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:08,775 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:08,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:25:08,776 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:08,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:08,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1598357160, now seen corresponding path program 1 times [2024-12-02 11:25:08,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:08,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500894196] [2024-12-02 11:25:08,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:08,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:08,905 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 11:25:08,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:08,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500894196] [2024-12-02 11:25:08,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500894196] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:08,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:08,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:25:08,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538504715] [2024-12-02 11:25:08,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:08,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:25:08,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:08,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:25:08,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:08,906 INFO L87 Difference]: Start difference. First operand 526 states and 873 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:09,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:09,117 INFO L93 Difference]: Finished difference Result 1009 states and 1680 transitions. [2024-12-02 11:25:09,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:25:09,117 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 63 [2024-12-02 11:25:09,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:09,122 INFO L225 Difference]: With dead ends: 1009 [2024-12-02 11:25:09,123 INFO L226 Difference]: Without dead ends: 535 [2024-12-02 11:25:09,125 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 11:25:09,126 INFO L435 NwaCegarLoop]: 830 mSDtfsCounter, 55 mSDsluCounter, 3291 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4121 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 11:25:09,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4121 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:25:09,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-12-02 11:25:09,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 526. [2024-12-02 11:25:09,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 413 states have (on average 1.675544794188862) internal successors, (692), 434 states have internal predecessors, (692), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 11:25:09,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 869 transitions. [2024-12-02 11:25:09,151 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 869 transitions. Word has length 63 [2024-12-02 11:25:09,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:09,151 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 869 transitions. [2024-12-02 11:25:09,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:09,152 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 869 transitions. [2024-12-02 11:25:09,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 11:25:09,153 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:09,153 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:09,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:25:09,154 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:09,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:09,154 INFO L85 PathProgramCache]: Analyzing trace with hash 659533719, now seen corresponding path program 1 times [2024-12-02 11:25:09,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:09,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001471610] [2024-12-02 11:25:09,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:09,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:09,292 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 11:25:09,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:09,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001471610] [2024-12-02 11:25:09,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001471610] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:09,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:09,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:25:09,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142956476] [2024-12-02 11:25:09,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:09,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:25:09,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:09,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:25:09,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:09,293 INFO L87 Difference]: Start difference. First operand 526 states and 869 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:09,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:09,477 INFO L93 Difference]: Finished difference Result 1009 states and 1676 transitions. [2024-12-02 11:25:09,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:25:09,478 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2024-12-02 11:25:09,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:09,483 INFO L225 Difference]: With dead ends: 1009 [2024-12-02 11:25:09,483 INFO L226 Difference]: Without dead ends: 535 [2024-12-02 11:25:09,485 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 11:25:09,486 INFO L435 NwaCegarLoop]: 830 mSDtfsCounter, 54 mSDsluCounter, 3291 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4121 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:09,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4121 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:25:09,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-12-02 11:25:09,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 526. [2024-12-02 11:25:09,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 413 states have (on average 1.665859564164649) internal successors, (688), 434 states have internal predecessors, (688), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 11:25:09,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 865 transitions. [2024-12-02 11:25:09,510 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 865 transitions. Word has length 64 [2024-12-02 11:25:09,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:09,511 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 865 transitions. [2024-12-02 11:25:09,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:09,511 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 865 transitions. [2024-12-02 11:25:09,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 11:25:09,512 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:09,513 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:09,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:25:09,513 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:09,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:09,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1194863523, now seen corresponding path program 1 times [2024-12-02 11:25:09,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:09,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649429546] [2024-12-02 11:25:09,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:09,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:09,652 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 11:25:09,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:09,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649429546] [2024-12-02 11:25:09,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649429546] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:09,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:09,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:25:09,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401815838] [2024-12-02 11:25:09,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:09,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:25:09,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:09,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:25:09,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:09,653 INFO L87 Difference]: Start difference. First operand 526 states and 865 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:09,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:09,834 INFO L93 Difference]: Finished difference Result 1009 states and 1672 transitions. [2024-12-02 11:25:09,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:25:09,835 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65 [2024-12-02 11:25:09,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:09,839 INFO L225 Difference]: With dead ends: 1009 [2024-12-02 11:25:09,840 INFO L226 Difference]: Without dead ends: 535 [2024-12-02 11:25:09,842 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 11:25:09,843 INFO L435 NwaCegarLoop]: 829 mSDtfsCounter, 53 mSDsluCounter, 3274 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4103 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 11:25:09,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4103 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:25:09,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-12-02 11:25:09,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 526. [2024-12-02 11:25:09,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 413 states have (on average 1.6561743341404358) internal successors, (684), 434 states have internal predecessors, (684), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 11:25:09,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 861 transitions. [2024-12-02 11:25:09,865 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 861 transitions. Word has length 65 [2024-12-02 11:25:09,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:09,865 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 861 transitions. [2024-12-02 11:25:09,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:09,865 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 861 transitions. [2024-12-02 11:25:09,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 11:25:09,867 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:09,867 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:09,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:25:09,867 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:09,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:09,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1879310115, now seen corresponding path program 1 times [2024-12-02 11:25:09,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:09,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006814789] [2024-12-02 11:25:09,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:09,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:10,023 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 11:25:10,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:10,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006814789] [2024-12-02 11:25:10,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006814789] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:10,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:10,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:25:10,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139970343] [2024-12-02 11:25:10,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:10,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:25:10,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:10,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:25:10,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:25:10,025 INFO L87 Difference]: Start difference. First operand 526 states and 861 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-12-02 11:25:10,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:10,102 INFO L93 Difference]: Finished difference Result 1000 states and 1654 transitions. [2024-12-02 11:25:10,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:25:10,103 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 65 [2024-12-02 11:25:10,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:10,108 INFO L225 Difference]: With dead ends: 1000 [2024-12-02 11:25:10,108 INFO L226 Difference]: Without dead ends: 505 [2024-12-02 11:25:10,110 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 11:25:10,111 INFO L435 NwaCegarLoop]: 850 mSDtfsCounter, 84 mSDsluCounter, 4177 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5027 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 11:25:10,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5027 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:25:10,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-12-02 11:25:10,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2024-12-02 11:25:10,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 392 states have (on average 1.6581632653061225) internal successors, (650), 413 states have internal predecessors, (650), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 11:25:10,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 827 transitions. [2024-12-02 11:25:10,131 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 827 transitions. Word has length 65 [2024-12-02 11:25:10,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:10,131 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 827 transitions. [2024-12-02 11:25:10,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-12-02 11:25:10,131 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 827 transitions. [2024-12-02 11:25:10,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-12-02 11:25:10,132 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:10,132 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:10,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:25:10,133 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:10,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:10,133 INFO L85 PathProgramCache]: Analyzing trace with hash 184303666, now seen corresponding path program 1 times [2024-12-02 11:25:10,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:10,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286244274] [2024-12-02 11:25:10,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:10,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:10,257 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 11:25:10,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:10,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286244274] [2024-12-02 11:25:10,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286244274] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:10,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:10,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:25:10,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934894148] [2024-12-02 11:25:10,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:10,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:25:10,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:10,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:25:10,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:10,258 INFO L87 Difference]: Start difference. First operand 505 states and 827 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:10,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:10,342 INFO L93 Difference]: Finished difference Result 979 states and 1620 transitions. [2024-12-02 11:25:10,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:25:10,343 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2024-12-02 11:25:10,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:10,348 INFO L225 Difference]: With dead ends: 979 [2024-12-02 11:25:10,348 INFO L226 Difference]: Without dead ends: 505 [2024-12-02 11:25:10,350 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 11:25:10,351 INFO L435 NwaCegarLoop]: 810 mSDtfsCounter, 17 mSDsluCounter, 3231 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4041 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 11:25:10,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4041 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:25:10,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-12-02 11:25:10,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2024-12-02 11:25:10,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 392 states have (on average 1.655612244897959) internal successors, (649), 413 states have internal predecessors, (649), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 11:25:10,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 826 transitions. [2024-12-02 11:25:10,372 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 826 transitions. Word has length 66 [2024-12-02 11:25:10,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:10,372 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 826 transitions. [2024-12-02 11:25:10,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:10,372 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 826 transitions. [2024-12-02 11:25:10,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 11:25:10,374 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:10,374 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:10,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 11:25:10,374 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:10,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:10,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1504195426, now seen corresponding path program 1 times [2024-12-02 11:25:10,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:10,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452192130] [2024-12-02 11:25:10,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:10,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:10,503 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 11:25:10,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:10,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452192130] [2024-12-02 11:25:10,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452192130] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:10,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:10,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:25:10,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476113777] [2024-12-02 11:25:10,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:10,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:25:10,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:10,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:25:10,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:10,504 INFO L87 Difference]: Start difference. First operand 505 states and 826 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:10,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:10,581 INFO L93 Difference]: Finished difference Result 979 states and 1619 transitions. [2024-12-02 11:25:10,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:25:10,581 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 67 [2024-12-02 11:25:10,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:10,586 INFO L225 Difference]: With dead ends: 979 [2024-12-02 11:25:10,586 INFO L226 Difference]: Without dead ends: 505 [2024-12-02 11:25:10,588 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 11:25:10,589 INFO L435 NwaCegarLoop]: 810 mSDtfsCounter, 16 mSDsluCounter, 3231 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4041 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 11:25:10,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4041 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:25:10,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-12-02 11:25:10,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2024-12-02 11:25:10,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 392 states have (on average 1.653061224489796) internal successors, (648), 413 states have internal predecessors, (648), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 11:25:10,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 825 transitions. [2024-12-02 11:25:10,609 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 825 transitions. Word has length 67 [2024-12-02 11:25:10,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:10,610 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 825 transitions. [2024-12-02 11:25:10,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:10,610 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 825 transitions. [2024-12-02 11:25:10,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 11:25:10,611 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:10,611 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:10,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 11:25:10,611 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:10,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:10,612 INFO L85 PathProgramCache]: Analyzing trace with hash 531633675, now seen corresponding path program 1 times [2024-12-02 11:25:10,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:10,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208626204] [2024-12-02 11:25:10,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:10,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:10,699 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 11:25:10,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:10,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208626204] [2024-12-02 11:25:10,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208626204] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:10,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:10,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:25:10,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493183665] [2024-12-02 11:25:10,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:10,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:25:10,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:10,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:25:10,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:25:10,700 INFO L87 Difference]: Start difference. First operand 505 states and 825 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:10,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:10,737 INFO L93 Difference]: Finished difference Result 979 states and 1618 transitions. [2024-12-02 11:25:10,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:25:10,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 68 [2024-12-02 11:25:10,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:10,742 INFO L225 Difference]: With dead ends: 979 [2024-12-02 11:25:10,742 INFO L226 Difference]: Without dead ends: 505 [2024-12-02 11:25:10,744 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 11:25:10,744 INFO L435 NwaCegarLoop]: 818 mSDtfsCounter, 9 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2448 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 11:25:10,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2448 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:25:10,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-12-02 11:25:10,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2024-12-02 11:25:10,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 392 states have (on average 1.6505102040816326) internal successors, (647), 413 states have internal predecessors, (647), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 11:25:10,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 824 transitions. [2024-12-02 11:25:10,765 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 824 transitions. Word has length 68 [2024-12-02 11:25:10,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:10,765 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 824 transitions. [2024-12-02 11:25:10,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:10,765 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 824 transitions. [2024-12-02 11:25:10,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 11:25:10,766 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:10,766 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:10,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 11:25:10,767 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:10,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:10,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1560992973, now seen corresponding path program 1 times [2024-12-02 11:25:10,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:10,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970043383] [2024-12-02 11:25:10,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:10,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:10,835 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 11:25:10,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:10,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970043383] [2024-12-02 11:25:10,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970043383] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:10,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:10,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:25:10,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255012930] [2024-12-02 11:25:10,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:10,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:25:10,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:10,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:25:10,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:25:10,837 INFO L87 Difference]: Start difference. First operand 505 states and 824 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:10,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:10,872 INFO L93 Difference]: Finished difference Result 973 states and 1606 transitions. [2024-12-02 11:25:10,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:25:10,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 68 [2024-12-02 11:25:10,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:10,876 INFO L225 Difference]: With dead ends: 973 [2024-12-02 11:25:10,876 INFO L226 Difference]: Without dead ends: 505 [2024-12-02 11:25:10,878 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 11:25:10,878 INFO L435 NwaCegarLoop]: 812 mSDtfsCounter, 4 mSDsluCounter, 1615 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:10,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2427 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:25:10,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-12-02 11:25:10,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2024-12-02 11:25:10,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 392 states have (on average 1.6479591836734695) internal successors, (646), 413 states have internal predecessors, (646), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 11:25:10,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 823 transitions. [2024-12-02 11:25:10,893 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 823 transitions. Word has length 68 [2024-12-02 11:25:10,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:10,893 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 823 transitions. [2024-12-02 11:25:10,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:10,893 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 823 transitions. [2024-12-02 11:25:10,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 11:25:10,894 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:10,894 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:10,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 11:25:10,895 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:10,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:10,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1247247049, now seen corresponding path program 1 times [2024-12-02 11:25:10,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:10,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378146411] [2024-12-02 11:25:10,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:10,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:11,080 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 11:25:11,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:11,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378146411] [2024-12-02 11:25:11,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378146411] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:11,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:11,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:25:11,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816575452] [2024-12-02 11:25:11,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:11,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:25:11,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:11,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:25:11,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:11,081 INFO L87 Difference]: Start difference. First operand 505 states and 823 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 5 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-12-02 11:25:13,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:13,239 INFO L93 Difference]: Finished difference Result 1568 states and 2622 transitions. [2024-12-02 11:25:13,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:25:13,239 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 5 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 69 [2024-12-02 11:25:13,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:13,248 INFO L225 Difference]: With dead ends: 1568 [2024-12-02 11:25:13,249 INFO L226 Difference]: Without dead ends: 1108 [2024-12-02 11:25:13,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:25:13,252 INFO L435 NwaCegarLoop]: 376 mSDtfsCounter, 3115 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 1696 mSolverCounterSat, 719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3175 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 2415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 719 IncrementalHoareTripleChecker+Valid, 1696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:13,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3175 Valid, 1016 Invalid, 2415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [719 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 11:25:13,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2024-12-02 11:25:13,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 986. [2024-12-02 11:25:13,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 774 states have (on average 1.67312661498708) internal successors, (1295), 804 states have internal predecessors, (1295), 174 states have call successors, (174), 36 states have call predecessors, (174), 37 states have return successors, (176), 158 states have call predecessors, (176), 169 states have call successors, (176) [2024-12-02 11:25:13,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1645 transitions. [2024-12-02 11:25:13,318 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1645 transitions. Word has length 69 [2024-12-02 11:25:13,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:13,319 INFO L471 AbstractCegarLoop]: Abstraction has 986 states and 1645 transitions. [2024-12-02 11:25:13,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 5 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-12-02 11:25:13,319 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1645 transitions. [2024-12-02 11:25:13,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-12-02 11:25:13,322 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:13,322 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] [2024-12-02 11:25:13,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 11:25:13,323 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:13,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:13,323 INFO L85 PathProgramCache]: Analyzing trace with hash -13142475, now seen corresponding path program 1 times [2024-12-02 11:25:13,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:13,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909952221] [2024-12-02 11:25:13,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:13,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:13,689 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 11:25:13,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:13,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909952221] [2024-12-02 11:25:13,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909952221] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:13,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:13,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:25:13,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373425261] [2024-12-02 11:25:13,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:13,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:25:13,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:13,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:25:13,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:25:13,691 INFO L87 Difference]: Start difference. First operand 986 states and 1645 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 11:25:15,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:15,229 INFO L93 Difference]: Finished difference Result 1935 states and 3293 transitions. [2024-12-02 11:25:15,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:25:15,230 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 98 [2024-12-02 11:25:15,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:15,237 INFO L225 Difference]: With dead ends: 1935 [2024-12-02 11:25:15,237 INFO L226 Difference]: Without dead ends: 994 [2024-12-02 11:25:15,242 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:25:15,243 INFO L435 NwaCegarLoop]: 384 mSDtfsCounter, 1254 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 2511 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 2883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 2511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:15,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 1622 Invalid, 2883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 2511 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 11:25:15,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2024-12-02 11:25:15,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 994. [2024-12-02 11:25:15,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 780 states have (on average 1.667948717948718) internal successors, (1301), 810 states have internal predecessors, (1301), 174 states have call successors, (174), 36 states have call predecessors, (174), 39 states have return successors, (208), 160 states have call predecessors, (208), 169 states have call successors, (208) [2024-12-02 11:25:15,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1683 transitions. [2024-12-02 11:25:15,303 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1683 transitions. Word has length 98 [2024-12-02 11:25:15,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:15,303 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1683 transitions. [2024-12-02 11:25:15,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 11:25:15,303 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1683 transitions. [2024-12-02 11:25:15,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 11:25:15,307 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:15,307 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] [2024-12-02 11:25:15,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 11:25:15,307 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:15,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:15,307 INFO L85 PathProgramCache]: Analyzing trace with hash 654509190, now seen corresponding path program 1 times [2024-12-02 11:25:15,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:15,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26297072] [2024-12-02 11:25:15,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:15,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:15,523 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 11:25:15,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:15,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26297072] [2024-12-02 11:25:15,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26297072] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:15,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:15,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:25:15,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428346122] [2024-12-02 11:25:15,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:15,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:25:15,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:15,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:25:15,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:25:15,524 INFO L87 Difference]: Start difference. First operand 994 states and 1683 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 11:25:18,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:18,406 INFO L93 Difference]: Finished difference Result 3665 states and 6350 transitions. [2024-12-02 11:25:18,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 11:25:18,407 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 99 [2024-12-02 11:25:18,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:18,422 INFO L225 Difference]: With dead ends: 3665 [2024-12-02 11:25:18,422 INFO L226 Difference]: Without dead ends: 2716 [2024-12-02 11:25:18,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-12-02 11:25:18,429 INFO L435 NwaCegarLoop]: 616 mSDtfsCounter, 2255 mSDsluCounter, 2027 mSDsCounter, 0 mSdLazyCounter, 4553 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2324 SdHoareTripleChecker+Valid, 2643 SdHoareTripleChecker+Invalid, 5142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 4553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:18,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2324 Valid, 2643 Invalid, 5142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [589 Valid, 4553 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-12-02 11:25:18,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2024-12-02 11:25:18,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 2608. [2024-12-02 11:25:18,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2608 states, 2039 states have (on average 1.666503187837175) internal successors, (3398), 2119 states have internal predecessors, (3398), 461 states have call successors, (461), 97 states have call predecessors, (461), 107 states have return successors, (524), 426 states have call predecessors, (524), 456 states have call successors, (524) [2024-12-02 11:25:18,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2608 states to 2608 states and 4383 transitions. [2024-12-02 11:25:18,596 INFO L78 Accepts]: Start accepts. Automaton has 2608 states and 4383 transitions. Word has length 99 [2024-12-02 11:25:18,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:18,596 INFO L471 AbstractCegarLoop]: Abstraction has 2608 states and 4383 transitions. [2024-12-02 11:25:18,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 11:25:18,597 INFO L276 IsEmpty]: Start isEmpty. Operand 2608 states and 4383 transitions. [2024-12-02 11:25:18,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 11:25:18,600 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:18,600 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] [2024-12-02 11:25:18,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 11:25:18,600 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:18,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:18,600 INFO L85 PathProgramCache]: Analyzing trace with hash 640594135, now seen corresponding path program 1 times [2024-12-02 11:25:18,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:18,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59897169] [2024-12-02 11:25:18,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:18,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:18,971 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 11:25:18,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:18,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59897169] [2024-12-02 11:25:18,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59897169] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:18,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:18,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 11:25:18,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223702460] [2024-12-02 11:25:18,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:18,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:25:18,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:18,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:25:18,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:25:18,973 INFO L87 Difference]: Start difference. First operand 2608 states and 4383 transitions. Second operand has 14 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 7 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-12-02 11:25:23,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:23,482 INFO L93 Difference]: Finished difference Result 8169 states and 13696 transitions. [2024-12-02 11:25:23,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 11:25:23,483 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 7 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 100 [2024-12-02 11:25:23,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:23,510 INFO L225 Difference]: With dead ends: 8169 [2024-12-02 11:25:23,511 INFO L226 Difference]: Without dead ends: 5606 [2024-12-02 11:25:23,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=157, Invalid=899, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 11:25:23,524 INFO L435 NwaCegarLoop]: 759 mSDtfsCounter, 2837 mSDsluCounter, 6430 mSDsCounter, 0 mSdLazyCounter, 10457 mSolverCounterSat, 940 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2911 SdHoareTripleChecker+Valid, 7189 SdHoareTripleChecker+Invalid, 11397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 940 IncrementalHoareTripleChecker+Valid, 10457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:23,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2911 Valid, 7189 Invalid, 11397 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [940 Valid, 10457 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-12-02 11:25:23,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5606 states. [2024-12-02 11:25:23,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5606 to 5442. [2024-12-02 11:25:23,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5442 states, 4131 states have (on average 1.6274509803921569) internal successors, (6723), 4312 states have internal predecessors, (6723), 1088 states have call successors, (1088), 190 states have call predecessors, (1088), 222 states have return successors, (1237), 1016 states have call predecessors, (1237), 1083 states have call successors, (1237) [2024-12-02 11:25:23,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5442 states to 5442 states and 9048 transitions. [2024-12-02 11:25:23,899 INFO L78 Accepts]: Start accepts. Automaton has 5442 states and 9048 transitions. Word has length 100 [2024-12-02 11:25:23,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:23,899 INFO L471 AbstractCegarLoop]: Abstraction has 5442 states and 9048 transitions. [2024-12-02 11:25:23,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 7 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-12-02 11:25:23,899 INFO L276 IsEmpty]: Start isEmpty. Operand 5442 states and 9048 transitions. [2024-12-02 11:25:23,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 11:25:23,902 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:23,902 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] [2024-12-02 11:25:23,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 11:25:23,902 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:23,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:23,903 INFO L85 PathProgramCache]: Analyzing trace with hash 611879645, now seen corresponding path program 1 times [2024-12-02 11:25:23,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:23,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107965773] [2024-12-02 11:25:23,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:23,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:24,110 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 11:25:24,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:24,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107965773] [2024-12-02 11:25:24,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107965773] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:24,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:24,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:25:24,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219156042] [2024-12-02 11:25:24,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:24,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:25:24,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:24,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:25:24,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:25:24,112 INFO L87 Difference]: Start difference. First operand 5442 states and 9048 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 11:25:27,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:27,226 INFO L93 Difference]: Finished difference Result 18887 states and 31972 transitions. [2024-12-02 11:25:27,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:25:27,227 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 101 [2024-12-02 11:25:27,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:27,298 INFO L225 Difference]: With dead ends: 18887 [2024-12-02 11:25:27,298 INFO L226 Difference]: Without dead ends: 13484 [2024-12-02 11:25:27,323 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:25:27,324 INFO L435 NwaCegarLoop]: 643 mSDtfsCounter, 2796 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 5137 mSolverCounterSat, 665 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2903 SdHoareTripleChecker+Valid, 2397 SdHoareTripleChecker+Invalid, 5802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 665 IncrementalHoareTripleChecker+Valid, 5137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:27,324 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2903 Valid, 2397 Invalid, 5802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [665 Valid, 5137 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 11:25:27,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13484 states. [2024-12-02 11:25:27,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13484 to 11440. [2024-12-02 11:25:27,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11440 states, 8376 states have (on average 1.6170009551098377) internal successors, (13544), 8858 states have internal predecessors, (13544), 2618 states have call successors, (2618), 362 states have call predecessors, (2618), 445 states have return successors, (3185), 2529 states have call predecessors, (3185), 2613 states have call successors, (3185) [2024-12-02 11:25:27,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11440 states to 11440 states and 19347 transitions. [2024-12-02 11:25:27,899 INFO L78 Accepts]: Start accepts. Automaton has 11440 states and 19347 transitions. Word has length 101 [2024-12-02 11:25:27,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:27,899 INFO L471 AbstractCegarLoop]: Abstraction has 11440 states and 19347 transitions. [2024-12-02 11:25:27,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 11:25:27,900 INFO L276 IsEmpty]: Start isEmpty. Operand 11440 states and 19347 transitions. [2024-12-02 11:25:27,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 11:25:27,902 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:27,902 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] [2024-12-02 11:25:27,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 11:25:27,902 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:27,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:27,903 INFO L85 PathProgramCache]: Analyzing trace with hash -759927653, now seen corresponding path program 1 times [2024-12-02 11:25:27,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:27,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849593642] [2024-12-02 11:25:27,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:27,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:28,032 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 11:25:28,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:28,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849593642] [2024-12-02 11:25:28,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849593642] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:28,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:28,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:25:28,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583232834] [2024-12-02 11:25:28,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:28,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:25:28,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:28,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:25:28,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:25:28,034 INFO L87 Difference]: Start difference. First operand 11440 states and 19347 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 11:25:31,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:31,266 INFO L93 Difference]: Finished difference Result 34307 states and 58930 transitions. [2024-12-02 11:25:31,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 11:25:31,267 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 101 [2024-12-02 11:25:31,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:31,450 INFO L225 Difference]: With dead ends: 34307 [2024-12-02 11:25:31,450 INFO L226 Difference]: Without dead ends: 24393 [2024-12-02 11:25:31,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 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 11:25:31,511 INFO L435 NwaCegarLoop]: 358 mSDtfsCounter, 2310 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 3487 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2390 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 3989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 3487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:31,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2390 Valid, 1752 Invalid, 3989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 3487 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 11:25:31,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24393 states. [2024-12-02 11:25:32,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24393 to 23320. [2024-12-02 11:25:32,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23320 states, 17108 states have (on average 1.6171381809679681) internal successors, (27666), 18133 states have internal predecessors, (27666), 5189 states have call successors, (5189), 716 states have call predecessors, (5189), 1022 states have return successors, (6877), 5045 states have call predecessors, (6877), 5184 states have call successors, (6877) [2024-12-02 11:25:33,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23320 states to 23320 states and 39732 transitions. [2024-12-02 11:25:33,096 INFO L78 Accepts]: Start accepts. Automaton has 23320 states and 39732 transitions. Word has length 101 [2024-12-02 11:25:33,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:33,097 INFO L471 AbstractCegarLoop]: Abstraction has 23320 states and 39732 transitions. [2024-12-02 11:25:33,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 11:25:33,098 INFO L276 IsEmpty]: Start isEmpty. Operand 23320 states and 39732 transitions. [2024-12-02 11:25:33,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 11:25:33,102 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:33,102 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, 1, 1, 1, 1, 1, 1, 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 11:25:33,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 11:25:33,102 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:33,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:33,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1042886076, now seen corresponding path program 1 times [2024-12-02 11:25:33,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:33,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116202080] [2024-12-02 11:25:33,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:33,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:33,292 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 11:25:33,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:33,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116202080] [2024-12-02 11:25:33,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116202080] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:33,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:33,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:25:33,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384517806] [2024-12-02 11:25:33,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:33,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:25:33,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:33,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:25:33,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:25:33,294 INFO L87 Difference]: Start difference. First operand 23320 states and 39732 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:25:34,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:34,646 INFO L93 Difference]: Finished difference Result 45210 states and 77388 transitions. [2024-12-02 11:25:34,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:25:34,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2024-12-02 11:25:34,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:34,778 INFO L225 Difference]: With dead ends: 45210 [2024-12-02 11:25:34,778 INFO L226 Difference]: Without dead ends: 23636 [2024-12-02 11:25:34,854 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 11:25:34,856 INFO L435 NwaCegarLoop]: 821 mSDtfsCounter, 0 mSDsluCounter, 2433 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3254 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 11:25:34,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3254 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:25:34,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23636 states. [2024-12-02 11:25:35,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23636 to 23576. [2024-12-02 11:25:35,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23576 states, 17306 states have (on average 1.60938402866058) internal successors, (27852), 18325 states have internal predecessors, (27852), 5177 states have call successors, (5177), 716 states have call predecessors, (5177), 1092 states have return successors, (7098), 5109 states have call predecessors, (7098), 5172 states have call successors, (7098) [2024-12-02 11:25:36,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23576 states to 23576 states and 40127 transitions. [2024-12-02 11:25:36,082 INFO L78 Accepts]: Start accepts. Automaton has 23576 states and 40127 transitions. Word has length 106 [2024-12-02 11:25:36,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:36,082 INFO L471 AbstractCegarLoop]: Abstraction has 23576 states and 40127 transitions. [2024-12-02 11:25:36,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:25:36,082 INFO L276 IsEmpty]: Start isEmpty. Operand 23576 states and 40127 transitions. [2024-12-02 11:25:36,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 11:25:36,084 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:36,084 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:36,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 11:25:36,085 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:36,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:36,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1821904279, now seen corresponding path program 1 times [2024-12-02 11:25:36,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:36,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755821795] [2024-12-02 11:25:36,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:36,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:36,233 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 11:25:36,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:36,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755821795] [2024-12-02 11:25:36,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755821795] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:36,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:36,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:25:36,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949748140] [2024-12-02 11:25:36,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:36,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:25:36,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:36,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:25:36,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:25:36,235 INFO L87 Difference]: Start difference. First operand 23576 states and 40127 transitions. Second operand has 9 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-12-02 11:25:38,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:38,057 INFO L93 Difference]: Finished difference Result 49398 states and 86034 transitions. [2024-12-02 11:25:38,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:25:38,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 113 [2024-12-02 11:25:38,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:38,207 INFO L225 Difference]: With dead ends: 49398 [2024-12-02 11:25:38,207 INFO L226 Difference]: Without dead ends: 24132 [2024-12-02 11:25:38,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:25:38,325 INFO L435 NwaCegarLoop]: 866 mSDtfsCounter, 235 mSDsluCounter, 5767 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 6633 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:38,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 6633 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:25:38,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24132 states. [2024-12-02 11:25:39,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24132 to 23648. [2024-12-02 11:25:39,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23648 states, 17369 states have (on average 1.5803442915539179) internal successors, (27449), 18397 states have internal predecessors, (27449), 5177 states have call successors, (5177), 716 states have call predecessors, (5177), 1101 states have return successors, (7134), 5109 states have call predecessors, (7134), 5172 states have call successors, (7134) [2024-12-02 11:25:39,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23648 states to 23648 states and 39760 transitions. [2024-12-02 11:25:39,885 INFO L78 Accepts]: Start accepts. Automaton has 23648 states and 39760 transitions. Word has length 113 [2024-12-02 11:25:39,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:39,885 INFO L471 AbstractCegarLoop]: Abstraction has 23648 states and 39760 transitions. [2024-12-02 11:25:39,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-12-02 11:25:39,886 INFO L276 IsEmpty]: Start isEmpty. Operand 23648 states and 39760 transitions. [2024-12-02 11:25:39,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 11:25:39,888 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:39,888 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:39,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 11:25:39,888 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:39,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:39,888 INFO L85 PathProgramCache]: Analyzing trace with hash -554964703, now seen corresponding path program 1 times [2024-12-02 11:25:39,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:39,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303514875] [2024-12-02 11:25:39,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:39,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:40,096 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 11:25:40,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:40,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303514875] [2024-12-02 11:25:40,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303514875] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:40,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:40,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:25:40,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375442100] [2024-12-02 11:25:40,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:40,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:25:40,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:40,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:25:40,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:25:40,098 INFO L87 Difference]: Start difference. First operand 23648 states and 39760 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 11:25:43,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:43,136 INFO L93 Difference]: Finished difference Result 48180 states and 81379 transitions. [2024-12-02 11:25:43,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:25:43,137 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 118 [2024-12-02 11:25:43,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:43,255 INFO L225 Difference]: With dead ends: 48180 [2024-12-02 11:25:43,255 INFO L226 Difference]: Without dead ends: 26299 [2024-12-02 11:25:43,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-12-02 11:25:43,331 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 2028 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 3003 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2104 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 3478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 3003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:43,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2104 Valid, 1702 Invalid, 3478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 3003 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 11:25:43,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26299 states. [2024-12-02 11:25:44,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26299 to 24746. [2024-12-02 11:25:44,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24746 states, 18188 states have (on average 1.5677369694303938) internal successors, (28514), 19288 states have internal predecessors, (28514), 5282 states have call successors, (5282), 821 states have call predecessors, (5282), 1275 states have return successors, (7535), 5211 states have call predecessors, (7535), 5277 states have call successors, (7535) [2024-12-02 11:25:44,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24746 states to 24746 states and 41331 transitions. [2024-12-02 11:25:44,586 INFO L78 Accepts]: Start accepts. Automaton has 24746 states and 41331 transitions. Word has length 118 [2024-12-02 11:25:44,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:44,586 INFO L471 AbstractCegarLoop]: Abstraction has 24746 states and 41331 transitions. [2024-12-02 11:25:44,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 11:25:44,586 INFO L276 IsEmpty]: Start isEmpty. Operand 24746 states and 41331 transitions. [2024-12-02 11:25:44,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 11:25:44,588 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:44,588 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:44,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 11:25:44,589 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:44,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:44,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1412215324, now seen corresponding path program 1 times [2024-12-02 11:25:44,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:44,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406476110] [2024-12-02 11:25:44,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:44,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:44,782 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 11:25:44,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:44,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406476110] [2024-12-02 11:25:44,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406476110] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:44,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:44,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:25:44,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374326029] [2024-12-02 11:25:44,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:44,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:25:44,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:44,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:25:44,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:25:44,783 INFO L87 Difference]: Start difference. First operand 24746 states and 41331 transitions. Second operand has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:25:46,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:46,397 INFO L93 Difference]: Finished difference Result 59404 states and 100083 transitions. [2024-12-02 11:25:46,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:25:46,398 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2024-12-02 11:25:46,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:46,563 INFO L225 Difference]: With dead ends: 59404 [2024-12-02 11:25:46,563 INFO L226 Difference]: Without dead ends: 36425 [2024-12-02 11:25:46,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:25:46,646 INFO L435 NwaCegarLoop]: 1324 mSDtfsCounter, 773 mSDsluCounter, 7362 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 8686 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:46,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 8686 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:25:46,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36425 states. [2024-12-02 11:25:48,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36425 to 33782. [2024-12-02 11:25:48,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33782 states, 24788 states have (on average 1.575359044699048) internal successors, (39050), 26230 states have internal predecessors, (39050), 7374 states have call successors, (7374), 1047 states have call predecessors, (7374), 1619 states have return successors, (10406), 7344 states have call predecessors, (10406), 7369 states have call successors, (10406) [2024-12-02 11:25:48,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33782 states to 33782 states and 56830 transitions. [2024-12-02 11:25:48,877 INFO L78 Accepts]: Start accepts. Automaton has 33782 states and 56830 transitions. Word has length 123 [2024-12-02 11:25:48,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:48,878 INFO L471 AbstractCegarLoop]: Abstraction has 33782 states and 56830 transitions. [2024-12-02 11:25:48,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:25:48,878 INFO L276 IsEmpty]: Start isEmpty. Operand 33782 states and 56830 transitions. [2024-12-02 11:25:48,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 11:25:48,881 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:48,881 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:48,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 11:25:48,881 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:48,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:48,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1278201818, now seen corresponding path program 1 times [2024-12-02 11:25:48,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:48,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473059047] [2024-12-02 11:25:48,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:48,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:49,045 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 11:25:49,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:49,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473059047] [2024-12-02 11:25:49,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473059047] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:49,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:49,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:25:49,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583514427] [2024-12-02 11:25:49,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:49,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:25:49,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:49,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:25:49,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:49,047 INFO L87 Difference]: Start difference. First operand 33782 states and 56830 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:25:50,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:50,793 INFO L93 Difference]: Finished difference Result 33952 states and 57140 transitions. [2024-12-02 11:25:50,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:25:50,794 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2024-12-02 11:25:50,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:50,986 INFO L225 Difference]: With dead ends: 33952 [2024-12-02 11:25:50,986 INFO L226 Difference]: Without dead ends: 33937 [2024-12-02 11:25:51,009 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 11:25:51,010 INFO L435 NwaCegarLoop]: 803 mSDtfsCounter, 883 mSDsluCounter, 1473 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 2276 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:51,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 2276 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:25:51,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33937 states. [2024-12-02 11:25:52,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33937 to 33792. [2024-12-02 11:25:52,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33792 states, 24798 states have (on average 1.5751270263730945) internal successors, (39060), 26240 states have internal predecessors, (39060), 7374 states have call successors, (7374), 1047 states have call predecessors, (7374), 1619 states have return successors, (10406), 7344 states have call predecessors, (10406), 7369 states have call successors, (10406) [2024-12-02 11:25:52,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33792 states to 33792 states and 56840 transitions. [2024-12-02 11:25:52,755 INFO L78 Accepts]: Start accepts. Automaton has 33792 states and 56840 transitions. Word has length 123 [2024-12-02 11:25:52,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:52,755 INFO L471 AbstractCegarLoop]: Abstraction has 33792 states and 56840 transitions. [2024-12-02 11:25:52,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:25:52,755 INFO L276 IsEmpty]: Start isEmpty. Operand 33792 states and 56840 transitions. [2024-12-02 11:25:52,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 11:25:52,757 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:52,758 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:52,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 11:25:52,758 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:52,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:52,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1109099851, now seen corresponding path program 1 times [2024-12-02 11:25:52,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:52,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58597875] [2024-12-02 11:25:52,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:52,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:52,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:52,990 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 11:25:52,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:52,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58597875] [2024-12-02 11:25:52,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58597875] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:52,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:52,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 11:25:52,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693438471] [2024-12-02 11:25:52,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:52,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 11:25:52,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:52,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 11:25:52,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:25:52,992 INFO L87 Difference]: Start difference. First operand 33792 states and 56840 transitions. Second operand has 11 states, 10 states have (on average 9.6) internal successors, (96), 9 states have internal predecessors, (96), 4 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 11:25:54,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:54,654 INFO L93 Difference]: Finished difference Result 34642 states and 58226 transitions. [2024-12-02 11:25:54,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:25:54,654 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.6) internal successors, (96), 9 states have internal predecessors, (96), 4 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 129 [2024-12-02 11:25:54,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:54,826 INFO L225 Difference]: With dead ends: 34642 [2024-12-02 11:25:54,826 INFO L226 Difference]: Without dead ends: 34579 [2024-12-02 11:25:54,849 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-12-02 11:25:54,849 INFO L435 NwaCegarLoop]: 804 mSDtfsCounter, 807 mSDsluCounter, 6355 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 7159 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:54,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 7159 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:25:54,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34579 states. [2024-12-02 11:25:56,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34579 to 34510. [2024-12-02 11:25:56,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34510 states, 25347 states have (on average 1.570244999408214) internal successors, (39801), 26789 states have internal predecessors, (39801), 7478 states have call successors, (7478), 1114 states have call predecessors, (7478), 1684 states have return successors, (10729), 7442 states have call predecessors, (10729), 7473 states have call successors, (10729) [2024-12-02 11:25:56,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34510 states to 34510 states and 58008 transitions. [2024-12-02 11:25:56,678 INFO L78 Accepts]: Start accepts. Automaton has 34510 states and 58008 transitions. Word has length 129 [2024-12-02 11:25:56,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:56,679 INFO L471 AbstractCegarLoop]: Abstraction has 34510 states and 58008 transitions. [2024-12-02 11:25:56,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.6) internal successors, (96), 9 states have internal predecessors, (96), 4 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 11:25:56,679 INFO L276 IsEmpty]: Start isEmpty. Operand 34510 states and 58008 transitions. [2024-12-02 11:25:56,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 11:25:56,681 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:56,681 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:25:56,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 11:25:56,682 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:56,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:56,682 INFO L85 PathProgramCache]: Analyzing trace with hash -346863314, now seen corresponding path program 1 times [2024-12-02 11:25:56,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:56,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187697558] [2024-12-02 11:25:56,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:56,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:56,916 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 11:25:56,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:56,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187697558] [2024-12-02 11:25:56,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187697558] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:56,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:56,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 11:25:56,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864734932] [2024-12-02 11:25:56,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:56,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 11:25:56,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:56,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 11:25:56,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:25:56,917 INFO L87 Difference]: Start difference. First operand 34510 states and 58008 transitions. Second operand has 13 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 7 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-12-02 11:26:02,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:26:02,819 INFO L93 Difference]: Finished difference Result 78233 states and 131677 transitions. [2024-12-02 11:26:02,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 11:26:02,820 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 7 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 142 [2024-12-02 11:26:02,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:26:03,042 INFO L225 Difference]: With dead ends: 78233 [2024-12-02 11:26:03,042 INFO L226 Difference]: Without dead ends: 45323 [2024-12-02 11:26:03,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2024-12-02 11:26:03,181 INFO L435 NwaCegarLoop]: 541 mSDtfsCounter, 2765 mSDsluCounter, 4486 mSDsCounter, 0 mSdLazyCounter, 8310 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2850 SdHoareTripleChecker+Valid, 5027 SdHoareTripleChecker+Invalid, 8962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 8310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:26:03,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2850 Valid, 5027 Invalid, 8962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 8310 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-12-02 11:26:03,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45323 states. [2024-12-02 11:26:05,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45323 to 40708. [2024-12-02 11:26:05,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40708 states, 30228 states have (on average 1.554982135768162) internal successors, (47004), 31928 states have internal predecessors, (47004), 8255 states have call successors, (8255), 1471 states have call predecessors, (8255), 2224 states have return successors, (11937), 8144 states have call predecessors, (11937), 8250 states have call successors, (11937) [2024-12-02 11:26:05,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40708 states to 40708 states and 67196 transitions. [2024-12-02 11:26:05,437 INFO L78 Accepts]: Start accepts. Automaton has 40708 states and 67196 transitions. Word has length 142 [2024-12-02 11:26:05,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:26:05,437 INFO L471 AbstractCegarLoop]: Abstraction has 40708 states and 67196 transitions. [2024-12-02 11:26:05,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 7 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-12-02 11:26:05,437 INFO L276 IsEmpty]: Start isEmpty. Operand 40708 states and 67196 transitions. [2024-12-02 11:26:05,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 11:26:05,440 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:26:05,440 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:26:05,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 11:26:05,440 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:26:05,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:26:05,440 INFO L85 PathProgramCache]: Analyzing trace with hash 2140256461, now seen corresponding path program 1 times [2024-12-02 11:26:05,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:26:05,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373368053] [2024-12-02 11:26:05,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:26:05,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:26:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:26:05,648 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 11:26:05,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:26:05,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373368053] [2024-12-02 11:26:05,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373368053] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:26:05,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:26:05,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:26:05,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019034898] [2024-12-02 11:26:05,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:26:05,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:26:05,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:26:05,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:26:05,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:26:05,650 INFO L87 Difference]: Start difference. First operand 40708 states and 67196 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 11:26:09,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:26:09,157 INFO L93 Difference]: Finished difference Result 81634 states and 135330 transitions. [2024-12-02 11:26:09,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:26:09,158 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) Word has length 142 [2024-12-02 11:26:09,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:26:09,338 INFO L225 Difference]: With dead ends: 81634 [2024-12-02 11:26:09,338 INFO L226 Difference]: Without dead ends: 40986 [2024-12-02 11:26:09,454 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:26:09,454 INFO L435 NwaCegarLoop]: 383 mSDtfsCounter, 1199 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 2518 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 1618 SdHoareTripleChecker+Invalid, 2851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 2518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:26:09,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1199 Valid, 1618 Invalid, 2851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 2518 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 11:26:09,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40986 states. [2024-12-02 11:26:12,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40986 to 40708. [2024-12-02 11:26:12,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40708 states, 30228 states have (on average 1.5535265316924705) internal successors, (46960), 31928 states have internal predecessors, (46960), 8255 states have call successors, (8255), 1471 states have call predecessors, (8255), 2224 states have return successors, (11937), 8144 states have call predecessors, (11937), 8250 states have call successors, (11937) [2024-12-02 11:26:12,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40708 states to 40708 states and 67152 transitions. [2024-12-02 11:26:12,473 INFO L78 Accepts]: Start accepts. Automaton has 40708 states and 67152 transitions. Word has length 142 [2024-12-02 11:26:12,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:26:12,473 INFO L471 AbstractCegarLoop]: Abstraction has 40708 states and 67152 transitions. [2024-12-02 11:26:12,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 11:26:12,473 INFO L276 IsEmpty]: Start isEmpty. Operand 40708 states and 67152 transitions. [2024-12-02 11:26:12,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 11:26:12,476 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:26:12,476 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:26:12,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 11:26:12,477 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:26:12,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:26:12,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1148736803, now seen corresponding path program 1 times [2024-12-02 11:26:12,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:26:12,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557503623] [2024-12-02 11:26:12,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:26:12,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:26:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:26:12,596 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 11:26:12,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:26:12,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557503623] [2024-12-02 11:26:12,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557503623] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:26:12,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:26:12,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:26:12,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971477871] [2024-12-02 11:26:12,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:26:12,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:26:12,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:26:12,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:26:12,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:26:12,598 INFO L87 Difference]: Start difference. First operand 40708 states and 67152 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 11:26:19,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:26:19,243 INFO L93 Difference]: Finished difference Result 122951 states and 211069 transitions. [2024-12-02 11:26:19,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:26:19,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 151 [2024-12-02 11:26:19,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:26:19,692 INFO L225 Difference]: With dead ends: 122951 [2024-12-02 11:26:19,692 INFO L226 Difference]: Without dead ends: 82288 [2024-12-02 11:26:19,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 11:26:19,880 INFO L435 NwaCegarLoop]: 410 mSDtfsCounter, 1791 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1861 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:26:19,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1861 Valid, 945 Invalid, 1556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 11:26:19,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82288 states. [2024-12-02 11:26:24,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82288 to 79362. [2024-12-02 11:26:24,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79362 states, 57376 states have (on average 1.5463608477412158) internal successors, (88724), 61064 states have internal predecessors, (88724), 17809 states have call successors, (17809), 2595 states have call predecessors, (17809), 4176 states have return successors, (29777), 17849 states have call predecessors, (29777), 17804 states have call successors, (29777) [2024-12-02 11:26:24,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79362 states to 79362 states and 136310 transitions. [2024-12-02 11:26:24,703 INFO L78 Accepts]: Start accepts. Automaton has 79362 states and 136310 transitions. Word has length 151 [2024-12-02 11:26:24,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:26:24,704 INFO L471 AbstractCegarLoop]: Abstraction has 79362 states and 136310 transitions. [2024-12-02 11:26:24,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 11:26:24,704 INFO L276 IsEmpty]: Start isEmpty. Operand 79362 states and 136310 transitions. [2024-12-02 11:26:24,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 11:26:24,708 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:26:24,708 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:26:24,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 11:26:24,708 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:26:24,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:26:24,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1573673549, now seen corresponding path program 1 times [2024-12-02 11:26:24,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:26:24,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159923380] [2024-12-02 11:26:24,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:26:24,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:26:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:26:24,864 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 11:26:24,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:26:24,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159923380] [2024-12-02 11:26:24,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159923380] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:26:24,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:26:24,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:26:24,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730934022] [2024-12-02 11:26:24,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:26:24,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:26:24,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:26:24,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:26:24,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:26:24,865 INFO L87 Difference]: Start difference. First operand 79362 states and 136310 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 11:26:37,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:26:37,085 INFO L93 Difference]: Finished difference Result 254850 states and 465453 transitions. [2024-12-02 11:26:37,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:26:37,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 150 [2024-12-02 11:26:37,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:26:38,162 INFO L225 Difference]: With dead ends: 254850 [2024-12-02 11:26:38,162 INFO L226 Difference]: Without dead ends: 175533 [2024-12-02 11:26:38,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 11:26:38,596 INFO L435 NwaCegarLoop]: 387 mSDtfsCounter, 1800 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1871 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:26:38,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1871 Valid, 914 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 11:26:38,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175533 states. [2024-12-02 11:26:50,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175533 to 169711. [2024-12-02 11:26:50,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169711 states, 119093 states have (on average 1.539292821576415) internal successors, (183319), 127721 states have internal predecessors, (183319), 42158 states have call successors, (42158), 4843 states have call predecessors, (42158), 8459 states have return successors, (84231), 42770 states have call predecessors, (84231), 42153 states have call successors, (84231) [2024-12-02 11:26:52,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169711 states to 169711 states and 309708 transitions. [2024-12-02 11:26:52,353 INFO L78 Accepts]: Start accepts. Automaton has 169711 states and 309708 transitions. Word has length 150 [2024-12-02 11:26:52,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:26:52,353 INFO L471 AbstractCegarLoop]: Abstraction has 169711 states and 309708 transitions. [2024-12-02 11:26:52,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 11:26:52,354 INFO L276 IsEmpty]: Start isEmpty. Operand 169711 states and 309708 transitions. [2024-12-02 11:26:52,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 11:26:52,361 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:26:52,361 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:26:52,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 11:26:52,361 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:26:52,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:26:52,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1539365033, now seen corresponding path program 1 times [2024-12-02 11:26:52,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:26:52,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330899807] [2024-12-02 11:26:52,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:26:52,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:26:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:26:52,478 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 11:26:52,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:26:52,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330899807] [2024-12-02 11:26:52,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330899807] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:26:52,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:26:52,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:26:52,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868599055] [2024-12-02 11:26:52,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:26:52,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:26:52,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:26:52,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:26:52,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:26:52,480 INFO L87 Difference]: Start difference. First operand 169711 states and 309708 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 11:27:22,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:27:22,329 INFO L93 Difference]: Finished difference Result 567916 states and 1130119 transitions. [2024-12-02 11:27:22,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:27:22,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 151 [2024-12-02 11:27:22,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:27:25,595 INFO L225 Difference]: With dead ends: 567916 [2024-12-02 11:27:25,595 INFO L226 Difference]: Without dead ends: 398250 [2024-12-02 11:27:26,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 11:27:26,729 INFO L435 NwaCegarLoop]: 389 mSDtfsCounter, 1787 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1857 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:27:26,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1857 Valid, 913 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 11:27:26,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398250 states. [2024-12-02 11:27:55,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398250 to 386916. [2024-12-02 11:27:56,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386916 states, 263433 states have (on average 1.5319948525811118) internal successors, (403578), 284554 states have internal predecessors, (403578), 105409 states have call successors, (105409), 9339 states have call predecessors, (105409), 18073 states have return successors, (255105), 107975 states have call predecessors, (255105), 105404 states have call successors, (255105) [2024-12-02 11:28:00,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386916 states to 386916 states and 764092 transitions. [2024-12-02 11:28:01,156 INFO L78 Accepts]: Start accepts. Automaton has 386916 states and 764092 transitions. Word has length 151 [2024-12-02 11:28:01,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:28:01,157 INFO L471 AbstractCegarLoop]: Abstraction has 386916 states and 764092 transitions. [2024-12-02 11:28:01,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 11:28:01,157 INFO L276 IsEmpty]: Start isEmpty. Operand 386916 states and 764092 transitions. [2024-12-02 11:28:01,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 11:28:01,164 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:28:01,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:28:01,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 11:28:01,164 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:28:01,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:28:01,164 INFO L85 PathProgramCache]: Analyzing trace with hash -475797131, now seen corresponding path program 1 times [2024-12-02 11:28:01,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:28:01,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907244004] [2024-12-02 11:28:01,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:28:01,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:28:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:28:01,280 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 11:28:01,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:28:01,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907244004] [2024-12-02 11:28:01,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907244004] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:28:01,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:28:01,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:28:01,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523304670] [2024-12-02 11:28:01,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:28:01,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:28:01,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:28:01,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:28:01,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:28:01,282 INFO L87 Difference]: Start difference. First operand 386916 states and 764092 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16)