./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec2_product29.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_1386df2e-f1b9-4269-b2ad-3a3389eba5ac/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1386df2e-f1b9-4269-b2ad-3a3389eba5ac/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_1386df2e-f1b9-4269-b2ad-3a3389eba5ac/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1386df2e-f1b9-4269-b2ad-3a3389eba5ac/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec2_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1386df2e-f1b9-4269-b2ad-3a3389eba5ac/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_1386df2e-f1b9-4269-b2ad-3a3389eba5ac/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 a9d4bfafe2ee2b10c7451875462462bdbc63aaee25e1868c3faa4756fb5ebfc5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:30:59,417 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:30:59,472 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1386df2e-f1b9-4269-b2ad-3a3389eba5ac/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 14:30:59,476 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:30:59,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:30:59,498 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:30:59,498 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:30:59,498 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:30:59,499 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:30:59,499 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:30:59,499 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:30:59,499 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:30:59,499 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:30:59,499 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:30:59,499 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:30:59,500 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:30:59,500 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:30:59,500 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:30:59,500 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:30:59,500 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:30:59,500 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:30:59,500 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:30:59,500 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:30:59,500 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:30:59,500 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:30:59,500 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:30:59,501 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:30:59,501 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:30:59,501 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:30:59,501 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:30:59,501 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:30:59,501 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:30:59,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:30:59,501 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:30:59,501 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:30:59,501 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:30:59,501 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:30:59,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:30:59,502 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:30:59,502 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:30:59,502 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:30:59,502 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:30:59,502 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:30:59,502 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:30:59,502 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:30:59,502 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:30:59,502 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:30:59,502 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:30:59,502 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_1386df2e-f1b9-4269-b2ad-3a3389eba5ac/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 -> a9d4bfafe2ee2b10c7451875462462bdbc63aaee25e1868c3faa4756fb5ebfc5 [2024-12-02 14:30:59,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:30:59,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:30:59,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:30:59,762 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:30:59,763 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:30:59,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1386df2e-f1b9-4269-b2ad-3a3389eba5ac/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/elevator_spec2_product29.cil.c [2024-12-02 14:31:02,400 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1386df2e-f1b9-4269-b2ad-3a3389eba5ac/bin/uautomizer-verify-84ZbGMXZE1/data/db965856d/f74919aafbb94a99bbde8d75627ede28/FLAG356bdb05a [2024-12-02 14:31:02,721 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:31:02,722 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1386df2e-f1b9-4269-b2ad-3a3389eba5ac/sv-benchmarks/c/product-lines/elevator_spec2_product29.cil.c [2024-12-02 14:31:02,741 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1386df2e-f1b9-4269-b2ad-3a3389eba5ac/bin/uautomizer-verify-84ZbGMXZE1/data/db965856d/f74919aafbb94a99bbde8d75627ede28/FLAG356bdb05a [2024-12-02 14:31:02,985 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1386df2e-f1b9-4269-b2ad-3a3389eba5ac/bin/uautomizer-verify-84ZbGMXZE1/data/db965856d/f74919aafbb94a99bbde8d75627ede28 [2024-12-02 14:31:02,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:31:02,988 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:31:02,989 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:31:02,989 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:31:02,993 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:31:02,994 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:31:02" (1/1) ... [2024-12-02 14:31:02,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4870af2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:02, skipping insertion in model container [2024-12-02 14:31:02,995 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:31:02" (1/1) ... [2024-12-02 14:31:03,036 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:31:03,215 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_1386df2e-f1b9-4269-b2ad-3a3389eba5ac/sv-benchmarks/c/product-lines/elevator_spec2_product29.cil.c[17414,17427] [2024-12-02 14:31:03,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:31:03,419 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:31:03,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2024-12-02 14:31:03,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [716] [2024-12-02 14:31:03,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [725] [2024-12-02 14:31:03,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [739] [2024-12-02 14:31:03,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2285] [2024-12-02 14:31:03,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2651] [2024-12-02 14:31:03,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3008] [2024-12-02 14:31:03,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3126] [2024-12-02 14:31:03,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [3217] [2024-12-02 14:31:03,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3398] [2024-12-02 14:31:03,449 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_1386df2e-f1b9-4269-b2ad-3a3389eba5ac/sv-benchmarks/c/product-lines/elevator_spec2_product29.cil.c[17414,17427] [2024-12-02 14:31:03,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:31:03,544 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:31:03,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:03 WrapperNode [2024-12-02 14:31:03,545 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:31:03,545 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:31:03,545 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:31:03,545 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:31:03,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:03" (1/1) ... [2024-12-02 14:31:03,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:03" (1/1) ... [2024-12-02 14:31:03,587 INFO L138 Inliner]: procedures = 93, calls = 341, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 903 [2024-12-02 14:31:03,587 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:31:03,588 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:31:03,588 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:31:03,588 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:31:03,596 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:03" (1/1) ... [2024-12-02 14:31:03,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:03" (1/1) ... [2024-12-02 14:31:03,602 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:03" (1/1) ... [2024-12-02 14:31:03,624 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 14:31:03,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:03" (1/1) ... [2024-12-02 14:31:03,625 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:03" (1/1) ... [2024-12-02 14:31:03,641 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:03" (1/1) ... [2024-12-02 14:31:03,643 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:03" (1/1) ... [2024-12-02 14:31:03,654 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:03" (1/1) ... [2024-12-02 14:31:03,659 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:03" (1/1) ... [2024-12-02 14:31:03,663 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:03" (1/1) ... [2024-12-02 14:31:03,671 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:31:03,672 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:31:03,672 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:31:03,672 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:31:03,673 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:03" (1/1) ... [2024-12-02 14:31:03,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:31:03,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1386df2e-f1b9-4269-b2ad-3a3389eba5ac/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:31:03,702 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1386df2e-f1b9-4269-b2ad-3a3389eba5ac/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:31:03,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1386df2e-f1b9-4269-b2ad-3a3389eba5ac/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:31:03,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:31:03,729 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-12-02 14:31:03,729 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-12-02 14:31:03,729 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-12-02 14:31:03,729 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-12-02 14:31:03,730 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-12-02 14:31:03,730 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-12-02 14:31:03,730 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-12-02 14:31:03,730 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-12-02 14:31:03,730 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-12-02 14:31:03,730 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-12-02 14:31:03,730 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2024-12-02 14:31:03,730 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2024-12-02 14:31:03,730 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 14:31:03,730 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 14:31:03,730 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 14:31:03,731 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 14:31:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-12-02 14:31:03,731 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-12-02 14:31:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-12-02 14:31:03,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-12-02 14:31:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-12-02 14:31:03,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-12-02 14:31:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-12-02 14:31:03,731 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-12-02 14:31:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-12-02 14:31:03,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-12-02 14:31:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-12-02 14:31:03,731 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-12-02 14:31:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-12-02 14:31:03,731 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-12-02 14:31:03,732 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-12-02 14:31:03,732 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-12-02 14:31:03,732 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-12-02 14:31:03,732 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-12-02 14:31:03,732 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-12-02 14:31:03,732 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-12-02 14:31:03,732 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-12-02 14:31:03,732 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-12-02 14:31:03,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:31:03,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 14:31:03,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 14:31:03,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 14:31:03,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 14:31:03,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 14:31:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 14:31:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 14:31:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 14:31:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 14:31:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 14:31:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 14:31:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 14:31:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 14:31:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 14:31:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 14:31:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 14:31:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 14:31:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 14:31:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 14:31:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-12-02 14:31:03,733 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-12-02 14:31:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-12-02 14:31:03,734 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-12-02 14:31:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-12-02 14:31:03,734 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-12-02 14:31:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-12-02 14:31:03,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-12-02 14:31:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:31:03,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:31:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-12-02 14:31:03,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-12-02 14:31:03,907 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:31:03,909 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:31:05,023 INFO L? ?]: Removed 460 outVars from TransFormulas that were not future-live. [2024-12-02 14:31:05,024 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:31:05,045 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:31:05,045 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 14:31:05,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:31:05 BoogieIcfgContainer [2024-12-02 14:31:05,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:31:05,048 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:31:05,048 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:31:05,052 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:31:05,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:31:02" (1/3) ... [2024-12-02 14:31:05,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a750e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:31:05, skipping insertion in model container [2024-12-02 14:31:05,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:03" (2/3) ... [2024-12-02 14:31:05,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a750e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:31:05, skipping insertion in model container [2024-12-02 14:31:05,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:31:05" (3/3) ... [2024-12-02 14:31:05,054 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product29.cil.c [2024-12-02 14:31:05,069 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:31:05,071 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec2_product29.cil.c that has 25 procedures, 571 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 14:31:05,131 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:31:05,143 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;@7fad0ca7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:31:05,143 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:31:05,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 571 states, 450 states have (on average 1.6977777777777778) internal successors, (764), 471 states have internal predecessors, (764), 95 states have call successors, (95), 24 states have call predecessors, (95), 24 states have return successors, (95), 89 states have call predecessors, (95), 95 states have call successors, (95) [2024-12-02 14:31:05,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-12-02 14:31:05,171 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:05,171 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:31:05,172 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:05,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:05,177 INFO L85 PathProgramCache]: Analyzing trace with hash 491965039, now seen corresponding path program 1 times [2024-12-02 14:31:05,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:05,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782273982] [2024-12-02 14:31:05,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:05,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:05,701 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 14:31:05,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:05,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782273982] [2024-12-02 14:31:05,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782273982] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:05,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:05,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:31:05,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141779004] [2024-12-02 14:31:05,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:05,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:31:05,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:05,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:31:05,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:31:05,732 INFO L87 Difference]: Start difference. First operand has 571 states, 450 states have (on average 1.6977777777777778) internal successors, (764), 471 states have internal predecessors, (764), 95 states have call successors, (95), 24 states have call predecessors, (95), 24 states have return successors, (95), 89 states have call predecessors, (95), 95 states have call successors, (95) Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:05,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:05,869 INFO L93 Difference]: Finished difference Result 1122 states and 1883 transitions. [2024-12-02 14:31:05,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:31:05,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 88 [2024-12-02 14:31:05,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:05,887 INFO L225 Difference]: With dead ends: 1122 [2024-12-02 14:31:05,887 INFO L226 Difference]: Without dead ends: 563 [2024-12-02 14:31:05,895 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 14:31:05,897 INFO L435 NwaCegarLoop]: 933 mSDtfsCounter, 5 mSDsluCounter, 1862 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2795 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 14:31:05,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2795 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:31:05,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-12-02 14:31:05,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2024-12-02 14:31:05,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 444 states have (on average 1.6936936936936937) internal successors, (752), 463 states have internal predecessors, (752), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 14:31:05,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 937 transitions. [2024-12-02 14:31:05,976 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 937 transitions. Word has length 88 [2024-12-02 14:31:05,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:05,976 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 937 transitions. [2024-12-02 14:31:05,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:05,977 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 937 transitions. [2024-12-02 14:31:05,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 14:31:05,984 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:05,984 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:31:05,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 14:31:05,985 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:05,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:05,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1531392343, now seen corresponding path program 1 times [2024-12-02 14:31:05,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:05,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725433248] [2024-12-02 14:31:05,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:05,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:06,227 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 14:31:06,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:06,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725433248] [2024-12-02 14:31:06,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725433248] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:06,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:06,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:31:06,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099859309] [2024-12-02 14:31:06,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:06,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:31:06,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:06,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:31:06,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:31:06,230 INFO L87 Difference]: Start difference. First operand 563 states and 937 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:06,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:06,310 INFO L93 Difference]: Finished difference Result 1108 states and 1851 transitions. [2024-12-02 14:31:06,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:31:06,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 90 [2024-12-02 14:31:06,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:06,317 INFO L225 Difference]: With dead ends: 1108 [2024-12-02 14:31:06,318 INFO L226 Difference]: Without dead ends: 563 [2024-12-02 14:31:06,321 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 14:31:06,322 INFO L435 NwaCegarLoop]: 926 mSDtfsCounter, 4 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2774 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 14:31:06,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2774 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:31:06,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-12-02 14:31:06,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2024-12-02 14:31:06,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 444 states have (on average 1.6914414414414414) internal successors, (751), 463 states have internal predecessors, (751), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 14:31:06,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 936 transitions. [2024-12-02 14:31:06,358 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 936 transitions. Word has length 90 [2024-12-02 14:31:06,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:06,358 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 936 transitions. [2024-12-02 14:31:06,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:06,358 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 936 transitions. [2024-12-02 14:31:06,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 14:31:06,363 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:06,364 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] [2024-12-02 14:31:06,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:31:06,364 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:06,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:06,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1334706812, now seen corresponding path program 1 times [2024-12-02 14:31:06,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:06,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525193527] [2024-12-02 14:31:06,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:06,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:06,543 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 14:31:06,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:06,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525193527] [2024-12-02 14:31:06,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525193527] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:06,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:06,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:31:06,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430912671] [2024-12-02 14:31:06,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:06,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:31:06,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:06,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:31:06,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:31:06,545 INFO L87 Difference]: Start difference. First operand 563 states and 936 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:06,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:06,612 INFO L93 Difference]: Finished difference Result 1108 states and 1850 transitions. [2024-12-02 14:31:06,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:31:06,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 91 [2024-12-02 14:31:06,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:06,617 INFO L225 Difference]: With dead ends: 1108 [2024-12-02 14:31:06,617 INFO L226 Difference]: Without dead ends: 563 [2024-12-02 14:31:06,620 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 14:31:06,621 INFO L435 NwaCegarLoop]: 926 mSDtfsCounter, 3 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2774 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 14:31:06,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2774 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:31:06,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-12-02 14:31:06,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2024-12-02 14:31:06,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 444 states have (on average 1.6891891891891893) internal successors, (750), 463 states have internal predecessors, (750), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 14:31:06,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 935 transitions. [2024-12-02 14:31:06,648 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 935 transitions. Word has length 91 [2024-12-02 14:31:06,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:06,648 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 935 transitions. [2024-12-02 14:31:06,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:06,649 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 935 transitions. [2024-12-02 14:31:06,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 14:31:06,652 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:06,652 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] [2024-12-02 14:31:06,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 14:31:06,653 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:06,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:06,653 INFO L85 PathProgramCache]: Analyzing trace with hash 64663803, now seen corresponding path program 1 times [2024-12-02 14:31:06,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:06,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736976299] [2024-12-02 14:31:06,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:06,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:06,789 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 14:31:06,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:06,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736976299] [2024-12-02 14:31:06,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736976299] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:06,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:06,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:31:06,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908594288] [2024-12-02 14:31:06,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:06,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:31:06,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:06,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:31:06,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:31:06,792 INFO L87 Difference]: Start difference. First operand 563 states and 935 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:06,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:06,842 INFO L93 Difference]: Finished difference Result 1108 states and 1849 transitions. [2024-12-02 14:31:06,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:31:06,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2024-12-02 14:31:06,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:06,848 INFO L225 Difference]: With dead ends: 1108 [2024-12-02 14:31:06,848 INFO L226 Difference]: Without dead ends: 563 [2024-12-02 14:31:06,850 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 14:31:06,851 INFO L435 NwaCegarLoop]: 926 mSDtfsCounter, 2 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2774 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 14:31:06,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2774 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:31:06,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-12-02 14:31:06,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2024-12-02 14:31:06,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 444 states have (on average 1.686936936936937) internal successors, (749), 463 states have internal predecessors, (749), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 14:31:06,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 934 transitions. [2024-12-02 14:31:06,878 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 934 transitions. Word has length 92 [2024-12-02 14:31:06,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:06,878 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 934 transitions. [2024-12-02 14:31:06,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:06,878 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 934 transitions. [2024-12-02 14:31:06,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 14:31:06,882 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:06,882 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] [2024-12-02 14:31:06,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 14:31:06,882 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:06,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:06,883 INFO L85 PathProgramCache]: Analyzing trace with hash 549611112, now seen corresponding path program 1 times [2024-12-02 14:31:06,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:06,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840664893] [2024-12-02 14:31:06,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:06,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:07,016 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 14:31:07,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:07,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840664893] [2024-12-02 14:31:07,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840664893] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:07,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:07,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:31:07,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156489505] [2024-12-02 14:31:07,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:07,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:31:07,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:07,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:31:07,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:31:07,017 INFO L87 Difference]: Start difference. First operand 563 states and 934 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:07,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:07,078 INFO L93 Difference]: Finished difference Result 1108 states and 1848 transitions. [2024-12-02 14:31:07,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:31:07,078 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2024-12-02 14:31:07,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:07,083 INFO L225 Difference]: With dead ends: 1108 [2024-12-02 14:31:07,083 INFO L226 Difference]: Without dead ends: 563 [2024-12-02 14:31:07,085 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 14:31:07,086 INFO L435 NwaCegarLoop]: 926 mSDtfsCounter, 1 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2774 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 14:31:07,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2774 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:31:07,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-12-02 14:31:07,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2024-12-02 14:31:07,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 444 states have (on average 1.6846846846846846) internal successors, (748), 463 states have internal predecessors, (748), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 14:31:07,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 933 transitions. [2024-12-02 14:31:07,110 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 933 transitions. Word has length 93 [2024-12-02 14:31:07,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:07,110 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 933 transitions. [2024-12-02 14:31:07,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:07,110 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 933 transitions. [2024-12-02 14:31:07,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 14:31:07,114 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:07,114 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] [2024-12-02 14:31:07,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 14:31:07,114 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:07,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:07,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1542760289, now seen corresponding path program 1 times [2024-12-02 14:31:07,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:07,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362869940] [2024-12-02 14:31:07,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:07,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:07,313 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 14:31:07,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:07,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362869940] [2024-12-02 14:31:07,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362869940] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:07,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:07,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:31:07,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556059676] [2024-12-02 14:31:07,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:07,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:31:07,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:07,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:31:07,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:31:07,315 INFO L87 Difference]: Start difference. First operand 563 states and 933 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 14:31:07,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:07,425 INFO L93 Difference]: Finished difference Result 1074 states and 1780 transitions. [2024-12-02 14:31:07,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 14:31:07,425 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2024-12-02 14:31:07,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:07,430 INFO L225 Difference]: With dead ends: 1074 [2024-12-02 14:31:07,430 INFO L226 Difference]: Without dead ends: 578 [2024-12-02 14:31:07,433 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 14:31:07,433 INFO L435 NwaCegarLoop]: 923 mSDtfsCounter, 91 mSDsluCounter, 4534 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5457 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:31:07,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5457 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:31:07,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2024-12-02 14:31:07,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 576. [2024-12-02 14:31:07,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 454 states have (on average 1.6806167400881058) internal successors, (763), 475 states have internal predecessors, (763), 96 states have call successors, (96), 24 states have call predecessors, (96), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2024-12-02 14:31:07,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 952 transitions. [2024-12-02 14:31:07,459 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 952 transitions. Word has length 94 [2024-12-02 14:31:07,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:07,459 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 952 transitions. [2024-12-02 14:31:07,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 14:31:07,460 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 952 transitions. [2024-12-02 14:31:07,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 14:31:07,464 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:07,464 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] [2024-12-02 14:31:07,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 14:31:07,464 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:07,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:07,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1529227488, now seen corresponding path program 1 times [2024-12-02 14:31:07,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:07,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059397715] [2024-12-02 14:31:07,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:07,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:07,580 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 14:31:07,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:07,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059397715] [2024-12-02 14:31:07,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059397715] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:07,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:07,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:31:07,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551022366] [2024-12-02 14:31:07,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:07,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:31:07,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:07,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:31:07,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:31:07,582 INFO L87 Difference]: Start difference. First operand 576 states and 952 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:07,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:07,645 INFO L93 Difference]: Finished difference Result 1126 states and 1874 transitions. [2024-12-02 14:31:07,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:31:07,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2024-12-02 14:31:07,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:07,650 INFO L225 Difference]: With dead ends: 1126 [2024-12-02 14:31:07,651 INFO L226 Difference]: Without dead ends: 557 [2024-12-02 14:31:07,653 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 14:31:07,654 INFO L435 NwaCegarLoop]: 927 mSDtfsCounter, 0 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2776 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 14:31:07,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2776 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:31:07,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-12-02 14:31:07,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2024-12-02 14:31:07,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 438 states have (on average 1.6757990867579908) internal successors, (734), 457 states have internal predecessors, (734), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 14:31:07,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 919 transitions. [2024-12-02 14:31:07,677 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 919 transitions. Word has length 94 [2024-12-02 14:31:07,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:07,677 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 919 transitions. [2024-12-02 14:31:07,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:07,677 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 919 transitions. [2024-12-02 14:31:07,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 14:31:07,681 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:07,681 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:31:07,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 14:31:07,681 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:07,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:07,682 INFO L85 PathProgramCache]: Analyzing trace with hash 987615615, now seen corresponding path program 1 times [2024-12-02 14:31:07,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:07,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632075239] [2024-12-02 14:31:07,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:07,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:07,844 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 14:31:07,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:07,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632075239] [2024-12-02 14:31:07,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632075239] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:07,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:07,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:31:07,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66832872] [2024-12-02 14:31:07,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:07,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:31:07,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:07,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:31:07,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:31:07,846 INFO L87 Difference]: Start difference. First operand 557 states and 919 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:08,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:08,046 INFO L93 Difference]: Finished difference Result 1071 states and 1772 transitions. [2024-12-02 14:31:08,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:31:08,047 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 95 [2024-12-02 14:31:08,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:08,052 INFO L225 Difference]: With dead ends: 1071 [2024-12-02 14:31:08,052 INFO L226 Difference]: Without dead ends: 566 [2024-12-02 14:31:08,055 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 14:31:08,055 INFO L435 NwaCegarLoop]: 876 mSDtfsCounter, 55 mSDsluCounter, 3475 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4351 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:31:08,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4351 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:31:08,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-12-02 14:31:08,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 557. [2024-12-02 14:31:08,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 438 states have (on average 1.6666666666666667) internal successors, (730), 457 states have internal predecessors, (730), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 14:31:08,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 915 transitions. [2024-12-02 14:31:08,078 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 915 transitions. Word has length 95 [2024-12-02 14:31:08,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:08,078 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 915 transitions. [2024-12-02 14:31:08,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:08,078 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 915 transitions. [2024-12-02 14:31:08,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 14:31:08,082 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:08,082 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] [2024-12-02 14:31:08,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 14:31:08,082 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:08,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:08,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1288720924, now seen corresponding path program 1 times [2024-12-02 14:31:08,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:08,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854230706] [2024-12-02 14:31:08,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:08,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:08,253 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 14:31:08,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:08,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854230706] [2024-12-02 14:31:08,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854230706] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:08,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:08,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:31:08,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250263963] [2024-12-02 14:31:08,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:08,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:31:08,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:08,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:31:08,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:31:08,255 INFO L87 Difference]: Start difference. First operand 557 states and 915 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:08,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:08,436 INFO L93 Difference]: Finished difference Result 1071 states and 1768 transitions. [2024-12-02 14:31:08,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:31:08,436 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 96 [2024-12-02 14:31:08,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:08,441 INFO L225 Difference]: With dead ends: 1071 [2024-12-02 14:31:08,441 INFO L226 Difference]: Without dead ends: 566 [2024-12-02 14:31:08,444 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 14:31:08,444 INFO L435 NwaCegarLoop]: 876 mSDtfsCounter, 54 mSDsluCounter, 3475 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4351 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 14:31:08,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4351 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:31:08,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-12-02 14:31:08,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 557. [2024-12-02 14:31:08,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 438 states have (on average 1.6575342465753424) internal successors, (726), 457 states have internal predecessors, (726), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 14:31:08,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 911 transitions. [2024-12-02 14:31:08,468 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 911 transitions. Word has length 96 [2024-12-02 14:31:08,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:08,468 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 911 transitions. [2024-12-02 14:31:08,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:08,469 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 911 transitions. [2024-12-02 14:31:08,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 14:31:08,472 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:08,472 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] [2024-12-02 14:31:08,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 14:31:08,472 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:08,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:08,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1785739206, now seen corresponding path program 1 times [2024-12-02 14:31:08,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:08,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557365007] [2024-12-02 14:31:08,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:08,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:08,622 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 14:31:08,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:08,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557365007] [2024-12-02 14:31:08,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557365007] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:08,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:08,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:31:08,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069970781] [2024-12-02 14:31:08,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:08,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:31:08,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:08,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:31:08,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:31:08,623 INFO L87 Difference]: Start difference. First operand 557 states and 911 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:08,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:08,785 INFO L93 Difference]: Finished difference Result 1071 states and 1764 transitions. [2024-12-02 14:31:08,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:31:08,786 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 97 [2024-12-02 14:31:08,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:08,791 INFO L225 Difference]: With dead ends: 1071 [2024-12-02 14:31:08,791 INFO L226 Difference]: Without dead ends: 566 [2024-12-02 14:31:08,793 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 14:31:08,794 INFO L435 NwaCegarLoop]: 875 mSDtfsCounter, 53 mSDsluCounter, 3458 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4333 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 14:31:08,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4333 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:31:08,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-12-02 14:31:08,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 557. [2024-12-02 14:31:08,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 438 states have (on average 1.6484018264840183) internal successors, (722), 457 states have internal predecessors, (722), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 14:31:08,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 907 transitions. [2024-12-02 14:31:08,816 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 907 transitions. Word has length 97 [2024-12-02 14:31:08,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:08,816 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 907 transitions. [2024-12-02 14:31:08,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:08,816 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 907 transitions. [2024-12-02 14:31:08,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 14:31:08,819 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:08,819 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] [2024-12-02 14:31:08,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 14:31:08,820 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:08,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:08,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1909613638, now seen corresponding path program 1 times [2024-12-02 14:31:08,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:08,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891810787] [2024-12-02 14:31:08,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:08,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:09,012 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 14:31:09,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:09,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891810787] [2024-12-02 14:31:09,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891810787] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:09,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:09,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:31:09,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898334029] [2024-12-02 14:31:09,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:09,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:31:09,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:09,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:31:09,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:31:09,014 INFO L87 Difference]: Start difference. First operand 557 states and 907 transitions. Second operand has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 14:31:09,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:09,107 INFO L93 Difference]: Finished difference Result 1062 states and 1746 transitions. [2024-12-02 14:31:09,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 14:31:09,107 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 97 [2024-12-02 14:31:09,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:09,113 INFO L225 Difference]: With dead ends: 1062 [2024-12-02 14:31:09,113 INFO L226 Difference]: Without dead ends: 536 [2024-12-02 14:31:09,116 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 14:31:09,117 INFO L435 NwaCegarLoop]: 896 mSDtfsCounter, 84 mSDsluCounter, 4407 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5303 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 14:31:09,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5303 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:31:09,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-12-02 14:31:09,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-12-02 14:31:09,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 417 states have (on average 1.6498800959232613) internal successors, (688), 436 states have internal predecessors, (688), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 14:31:09,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 873 transitions. [2024-12-02 14:31:09,145 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 873 transitions. Word has length 97 [2024-12-02 14:31:09,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:09,145 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 873 transitions. [2024-12-02 14:31:09,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 14:31:09,145 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 873 transitions. [2024-12-02 14:31:09,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-12-02 14:31:09,150 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:09,150 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 14:31:09,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 14:31:09,150 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:09,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:09,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2128545545, now seen corresponding path program 1 times [2024-12-02 14:31:09,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:09,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974282676] [2024-12-02 14:31:09,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:09,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:09,323 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 14:31:09,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:09,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974282676] [2024-12-02 14:31:09,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974282676] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:09,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:09,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:31:09,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92153283] [2024-12-02 14:31:09,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:09,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:31:09,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:09,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:31:09,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:31:09,325 INFO L87 Difference]: Start difference. First operand 536 states and 873 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:09,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:09,401 INFO L93 Difference]: Finished difference Result 1041 states and 1712 transitions. [2024-12-02 14:31:09,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:31:09,402 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 98 [2024-12-02 14:31:09,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:09,407 INFO L225 Difference]: With dead ends: 1041 [2024-12-02 14:31:09,407 INFO L226 Difference]: Without dead ends: 536 [2024-12-02 14:31:09,409 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 14:31:09,410 INFO L435 NwaCegarLoop]: 856 mSDtfsCounter, 17 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4271 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 14:31:09,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4271 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:31:09,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-12-02 14:31:09,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-12-02 14:31:09,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 417 states have (on average 1.6474820143884892) internal successors, (687), 436 states have internal predecessors, (687), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 14:31:09,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 872 transitions. [2024-12-02 14:31:09,430 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 872 transitions. Word has length 98 [2024-12-02 14:31:09,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:09,430 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 872 transitions. [2024-12-02 14:31:09,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:09,430 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 872 transitions. [2024-12-02 14:31:09,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 14:31:09,433 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:09,433 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 14:31:09,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 14:31:09,433 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:09,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:09,434 INFO L85 PathProgramCache]: Analyzing trace with hash 605537013, now seen corresponding path program 1 times [2024-12-02 14:31:09,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:09,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851044799] [2024-12-02 14:31:09,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:09,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:09,577 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 14:31:09,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:09,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851044799] [2024-12-02 14:31:09,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851044799] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:09,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:09,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:31:09,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881516333] [2024-12-02 14:31:09,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:09,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:31:09,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:09,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:31:09,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:31:09,579 INFO L87 Difference]: Start difference. First operand 536 states and 872 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:09,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:09,667 INFO L93 Difference]: Finished difference Result 1041 states and 1711 transitions. [2024-12-02 14:31:09,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:31:09,667 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 99 [2024-12-02 14:31:09,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:09,672 INFO L225 Difference]: With dead ends: 1041 [2024-12-02 14:31:09,672 INFO L226 Difference]: Without dead ends: 536 [2024-12-02 14:31:09,675 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 14:31:09,675 INFO L435 NwaCegarLoop]: 856 mSDtfsCounter, 16 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4271 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 14:31:09,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4271 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:31:09,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-12-02 14:31:09,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-12-02 14:31:09,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 417 states have (on average 1.645083932853717) internal successors, (686), 436 states have internal predecessors, (686), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 14:31:09,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 871 transitions. [2024-12-02 14:31:09,695 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 871 transitions. Word has length 99 [2024-12-02 14:31:09,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:09,696 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 871 transitions. [2024-12-02 14:31:09,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:09,696 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 871 transitions. [2024-12-02 14:31:09,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 14:31:09,699 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:09,699 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 14:31:09,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 14:31:09,699 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:09,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:09,700 INFO L85 PathProgramCache]: Analyzing trace with hash -61072430, now seen corresponding path program 1 times [2024-12-02 14:31:09,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:09,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251923253] [2024-12-02 14:31:09,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:09,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:09,809 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 14:31:09,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:09,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251923253] [2024-12-02 14:31:09,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251923253] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:09,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:09,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:31:09,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883916059] [2024-12-02 14:31:09,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:09,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:31:09,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:09,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:31:09,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:31:09,810 INFO L87 Difference]: Start difference. First operand 536 states and 871 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:09,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:09,854 INFO L93 Difference]: Finished difference Result 1035 states and 1699 transitions. [2024-12-02 14:31:09,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:31:09,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 100 [2024-12-02 14:31:09,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:09,859 INFO L225 Difference]: With dead ends: 1035 [2024-12-02 14:31:09,859 INFO L226 Difference]: Without dead ends: 536 [2024-12-02 14:31:09,861 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 14:31:09,862 INFO L435 NwaCegarLoop]: 859 mSDtfsCounter, 5 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2567 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 14:31:09,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2567 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:31:09,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-12-02 14:31:09,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-12-02 14:31:09,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 417 states have (on average 1.6426858513189448) internal successors, (685), 436 states have internal predecessors, (685), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 14:31:09,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 870 transitions. [2024-12-02 14:31:09,883 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 870 transitions. Word has length 100 [2024-12-02 14:31:09,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:09,883 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 870 transitions. [2024-12-02 14:31:09,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 14:31:09,883 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 870 transitions. [2024-12-02 14:31:09,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 14:31:09,886 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:09,886 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 14:31:09,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 14:31:09,887 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:09,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:09,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1210803488, now seen corresponding path program 1 times [2024-12-02 14:31:09,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:09,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131430314] [2024-12-02 14:31:09,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:09,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:10,173 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 14:31:10,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:10,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131430314] [2024-12-02 14:31:10,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131430314] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:10,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:10,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 14:31:10,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373719601] [2024-12-02 14:31:10,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:10,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 14:31:10,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:10,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 14:31:10,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 14:31:10,175 INFO L87 Difference]: Start difference. First operand 536 states and 870 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 14:31:11,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:11,972 INFO L93 Difference]: Finished difference Result 1031 states and 1711 transitions. [2024-12-02 14:31:11,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 14:31:11,972 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 101 [2024-12-02 14:31:11,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:11,977 INFO L225 Difference]: With dead ends: 1031 [2024-12-02 14:31:11,977 INFO L226 Difference]: Without dead ends: 540 [2024-12-02 14:31:11,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 14:31:11,980 INFO L435 NwaCegarLoop]: 374 mSDtfsCounter, 1335 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 2800 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 3190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 2800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:31:11,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1335 Valid, 1568 Invalid, 3190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 2800 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 14:31:11,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-12-02 14:31:11,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2024-12-02 14:31:11,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 420 states have (on average 1.638095238095238) internal successors, (688), 439 states have internal predecessors, (688), 95 states have call successors, (95), 24 states have call predecessors, (95), 24 states have return successors, (106), 89 states have call predecessors, (106), 90 states have call successors, (106) [2024-12-02 14:31:12,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 889 transitions. [2024-12-02 14:31:12,001 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 889 transitions. Word has length 101 [2024-12-02 14:31:12,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:12,002 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 889 transitions. [2024-12-02 14:31:12,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 14:31:12,002 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 889 transitions. [2024-12-02 14:31:12,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 14:31:12,004 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:12,004 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:31:12,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 14:31:12,004 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:12,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:12,005 INFO L85 PathProgramCache]: Analyzing trace with hash -703065830, now seen corresponding path program 1 times [2024-12-02 14:31:12,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:12,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339751643] [2024-12-02 14:31:12,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:12,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:12,175 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 14:31:12,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:12,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339751643] [2024-12-02 14:31:12,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339751643] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:12,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:12,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:31:12,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144092170] [2024-12-02 14:31:12,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:12,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:31:12,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:12,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:31:12,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:31:12,176 INFO L87 Difference]: Start difference. First operand 540 states and 889 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 14:31:15,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:15,336 INFO L93 Difference]: Finished difference Result 1944 states and 3309 transitions. [2024-12-02 14:31:15,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 14:31:15,337 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 102 [2024-12-02 14:31:15,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:15,345 INFO L225 Difference]: With dead ends: 1944 [2024-12-02 14:31:15,345 INFO L226 Difference]: Without dead ends: 1449 [2024-12-02 14:31:15,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-12-02 14:31:15,348 INFO L435 NwaCegarLoop]: 601 mSDtfsCounter, 2452 mSDsluCounter, 1920 mSDsCounter, 0 mSdLazyCounter, 5065 mSolverCounterSat, 618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2531 SdHoareTripleChecker+Valid, 2521 SdHoareTripleChecker+Invalid, 5683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 5065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 14:31:15,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2531 Valid, 2521 Invalid, 5683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [618 Valid, 5065 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 14:31:15,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2024-12-02 14:31:15,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1391. [2024-12-02 14:31:15,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1391 states, 1078 states have (on average 1.6493506493506493) internal successors, (1778), 1126 states have internal predecessors, (1778), 249 states have call successors, (249), 63 states have call predecessors, (249), 63 states have return successors, (270), 238 states have call predecessors, (270), 244 states have call successors, (270) [2024-12-02 14:31:15,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 2297 transitions. [2024-12-02 14:31:15,411 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 2297 transitions. Word has length 102 [2024-12-02 14:31:15,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:15,411 INFO L471 AbstractCegarLoop]: Abstraction has 1391 states and 2297 transitions. [2024-12-02 14:31:15,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 14:31:15,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 2297 transitions. [2024-12-02 14:31:15,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 14:31:15,413 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:15,413 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] [2024-12-02 14:31:15,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 14:31:15,414 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:15,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:15,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1869755115, now seen corresponding path program 1 times [2024-12-02 14:31:15,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:15,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844849535] [2024-12-02 14:31:15,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:15,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:15,541 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:31:15,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:15,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844849535] [2024-12-02 14:31:15,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844849535] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:15,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:15,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:31:15,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384885026] [2024-12-02 14:31:15,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:15,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:31:15,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:15,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:31:15,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:31:15,543 INFO L87 Difference]: Start difference. First operand 1391 states and 2297 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-12-02 14:31:17,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:17,964 INFO L93 Difference]: Finished difference Result 5014 states and 8521 transitions. [2024-12-02 14:31:17,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 14:31:17,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 104 [2024-12-02 14:31:17,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:17,990 INFO L225 Difference]: With dead ends: 5014 [2024-12-02 14:31:17,990 INFO L226 Difference]: Without dead ends: 3669 [2024-12-02 14:31:17,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:31:17,997 INFO L435 NwaCegarLoop]: 877 mSDtfsCounter, 3443 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 3440 mSolverCounterSat, 1026 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3485 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 4466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1026 IncrementalHoareTripleChecker+Valid, 3440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:31:17,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3485 Valid, 2205 Invalid, 4466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1026 Valid, 3440 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 14:31:18,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3669 states. [2024-12-02 14:31:18,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3669 to 3258. [2024-12-02 14:31:18,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3258 states, 2405 states have (on average 1.636174636174636) internal successors, (3935), 2551 states have internal predecessors, (3935), 720 states have call successors, (720), 121 states have call predecessors, (720), 132 states have return successors, (821), 707 states have call predecessors, (821), 715 states have call successors, (821) [2024-12-02 14:31:18,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3258 states to 3258 states and 5476 transitions. [2024-12-02 14:31:18,218 INFO L78 Accepts]: Start accepts. Automaton has 3258 states and 5476 transitions. Word has length 104 [2024-12-02 14:31:18,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:18,219 INFO L471 AbstractCegarLoop]: Abstraction has 3258 states and 5476 transitions. [2024-12-02 14:31:18,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-12-02 14:31:18,219 INFO L276 IsEmpty]: Start isEmpty. Operand 3258 states and 5476 transitions. [2024-12-02 14:31:18,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 14:31:18,222 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:18,222 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] [2024-12-02 14:31:18,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 14:31:18,222 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:18,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:18,223 INFO L85 PathProgramCache]: Analyzing trace with hash -771682571, now seen corresponding path program 1 times [2024-12-02 14:31:18,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:18,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624613099] [2024-12-02 14:31:18,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:18,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:18,388 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:31:18,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:18,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624613099] [2024-12-02 14:31:18,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624613099] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:18,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:18,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:31:18,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347861096] [2024-12-02 14:31:18,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:18,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:31:18,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:18,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:31:18,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:31:18,389 INFO L87 Difference]: Start difference. First operand 3258 states and 5476 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-12-02 14:31:21,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:21,026 INFO L93 Difference]: Finished difference Result 12863 states and 22291 transitions. [2024-12-02 14:31:21,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 14:31:21,027 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 105 [2024-12-02 14:31:21,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:21,071 INFO L225 Difference]: With dead ends: 12863 [2024-12-02 14:31:21,072 INFO L226 Difference]: Without dead ends: 9652 [2024-12-02 14:31:21,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:31:21,085 INFO L435 NwaCegarLoop]: 876 mSDtfsCounter, 3456 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 3409 mSolverCounterSat, 1046 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3499 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 4455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1046 IncrementalHoareTripleChecker+Valid, 3409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:31:21,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3499 Valid, 2218 Invalid, 4455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1046 Valid, 3409 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 14:31:21,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9652 states. [2024-12-02 14:31:21,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9652 to 8395. [2024-12-02 14:31:21,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8395 states, 5866 states have (on average 1.6181384248210025) internal successors, (9492), 6298 states have internal predecessors, (9492), 2243 states have call successors, (2243), 237 states have call predecessors, (2243), 285 states have return successors, (2679), 2238 states have call predecessors, (2679), 2238 states have call successors, (2679) [2024-12-02 14:31:21,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8395 states to 8395 states and 14414 transitions. [2024-12-02 14:31:21,746 INFO L78 Accepts]: Start accepts. Automaton has 8395 states and 14414 transitions. Word has length 105 [2024-12-02 14:31:21,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:21,746 INFO L471 AbstractCegarLoop]: Abstraction has 8395 states and 14414 transitions. [2024-12-02 14:31:21,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-12-02 14:31:21,746 INFO L276 IsEmpty]: Start isEmpty. Operand 8395 states and 14414 transitions. [2024-12-02 14:31:21,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 14:31:21,749 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:21,749 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] [2024-12-02 14:31:21,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 14:31:21,749 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:21,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:21,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1919674384, now seen corresponding path program 1 times [2024-12-02 14:31:21,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:21,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43146908] [2024-12-02 14:31:21,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:21,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:21,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:31:21,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:21,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43146908] [2024-12-02 14:31:21,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43146908] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:21,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:21,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:31:21,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599656571] [2024-12-02 14:31:21,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:21,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:31:21,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:21,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:31:21,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:31:21,930 INFO L87 Difference]: Start difference. First operand 8395 states and 14414 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-12-02 14:31:25,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:25,712 INFO L93 Difference]: Finished difference Result 36444 states and 64546 transitions. [2024-12-02 14:31:25,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 14:31:25,713 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 106 [2024-12-02 14:31:25,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:25,844 INFO L225 Difference]: With dead ends: 36444 [2024-12-02 14:31:25,844 INFO L226 Difference]: Without dead ends: 28098 [2024-12-02 14:31:25,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:31:25,880 INFO L435 NwaCegarLoop]: 882 mSDtfsCounter, 3468 mSDsluCounter, 1357 mSDsCounter, 0 mSdLazyCounter, 3414 mSolverCounterSat, 1050 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3512 SdHoareTripleChecker+Valid, 2239 SdHoareTripleChecker+Invalid, 4464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1050 IncrementalHoareTripleChecker+Valid, 3414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:31:25,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3512 Valid, 2239 Invalid, 4464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1050 Valid, 3414 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 14:31:25,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28098 states. [2024-12-02 14:31:27,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28098 to 23924. [2024-12-02 14:31:27,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23924 states, 15866 states have (on average 1.6009076011597125) internal successors, (25400), 17185 states have internal predecessors, (25400), 7412 states have call successors, (7412), 469 states have call predecessors, (7412), 645 states have return successors, (9323), 7471 states have call predecessors, (9323), 7407 states have call successors, (9323) [2024-12-02 14:31:28,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23924 states to 23924 states and 42135 transitions. [2024-12-02 14:31:28,020 INFO L78 Accepts]: Start accepts. Automaton has 23924 states and 42135 transitions. Word has length 106 [2024-12-02 14:31:28,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:28,020 INFO L471 AbstractCegarLoop]: Abstraction has 23924 states and 42135 transitions. [2024-12-02 14:31:28,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-12-02 14:31:28,021 INFO L276 IsEmpty]: Start isEmpty. Operand 23924 states and 42135 transitions. [2024-12-02 14:31:28,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 14:31:28,022 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:28,022 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:31:28,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 14:31:28,022 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:28,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:28,023 INFO L85 PathProgramCache]: Analyzing trace with hash 318782768, now seen corresponding path program 1 times [2024-12-02 14:31:28,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:28,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957168787] [2024-12-02 14:31:28,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:28,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:28,122 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:31:28,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:28,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957168787] [2024-12-02 14:31:28,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957168787] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:28,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:28,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:31:28,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253059084] [2024-12-02 14:31:28,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:28,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:31:28,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:28,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:31:28,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:31:28,124 INFO L87 Difference]: Start difference. First operand 23924 states and 42135 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-12-02 14:31:35,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:31:35,791 INFO L93 Difference]: Finished difference Result 112891 states and 204460 transitions. [2024-12-02 14:31:35,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 14:31:35,791 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 107 [2024-12-02 14:31:35,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:31:36,259 INFO L225 Difference]: With dead ends: 112891 [2024-12-02 14:31:36,259 INFO L226 Difference]: Without dead ends: 89020 [2024-12-02 14:31:36,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:31:36,382 INFO L435 NwaCegarLoop]: 888 mSDtfsCounter, 3480 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 3423 mSolverCounterSat, 1052 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3525 SdHoareTripleChecker+Valid, 2260 SdHoareTripleChecker+Invalid, 4475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1052 IncrementalHoareTripleChecker+Valid, 3423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:31:36,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3525 Valid, 2260 Invalid, 4475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1052 Valid, 3423 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 14:31:36,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89020 states. [2024-12-02 14:31:41,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89020 to 74673. [2024-12-02 14:31:42,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74673 states, 47662 states have (on average 1.5888548529226638) internal successors, (75728), 51844 states have internal predecessors, (75728), 25441 states have call successors, (25441), 933 states have call predecessors, (25441), 1569 states have return successors, (33789), 25820 states have call predecessors, (33789), 25436 states have call successors, (33789) [2024-12-02 14:31:42,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74673 states to 74673 states and 134958 transitions. [2024-12-02 14:31:42,534 INFO L78 Accepts]: Start accepts. Automaton has 74673 states and 134958 transitions. Word has length 107 [2024-12-02 14:31:42,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:31:42,534 INFO L471 AbstractCegarLoop]: Abstraction has 74673 states and 134958 transitions. [2024-12-02 14:31:42,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-12-02 14:31:42,535 INFO L276 IsEmpty]: Start isEmpty. Operand 74673 states and 134958 transitions. [2024-12-02 14:31:42,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 14:31:42,536 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:31:42,536 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] [2024-12-02 14:31:42,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 14:31:42,537 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:31:42,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:31:42,537 INFO L85 PathProgramCache]: Analyzing trace with hash 162975435, now seen corresponding path program 1 times [2024-12-02 14:31:42,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:31:42,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738671192] [2024-12-02 14:31:42,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:31:42,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:31:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:31:42,700 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:31:42,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:31:42,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738671192] [2024-12-02 14:31:42,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738671192] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:31:42,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:31:42,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 14:31:42,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469997642] [2024-12-02 14:31:42,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:31:42,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:31:42,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:31:42,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:31:42,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:31:42,702 INFO L87 Difference]: Start difference. First operand 74673 states and 134958 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-12-02 14:32:05,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:32:05,070 INFO L93 Difference]: Finished difference Result 374634 states and 691816 transitions. [2024-12-02 14:32:05,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 14:32:05,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 108 [2024-12-02 14:32:05,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:32:07,281 INFO L225 Difference]: With dead ends: 374634 [2024-12-02 14:32:07,281 INFO L226 Difference]: Without dead ends: 300022 [2024-12-02 14:32:07,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:32:07,687 INFO L435 NwaCegarLoop]: 894 mSDtfsCounter, 3492 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 3432 mSolverCounterSat, 1054 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3538 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 4486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1054 IncrementalHoareTripleChecker+Valid, 3432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:32:07,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3538 Valid, 2281 Invalid, 4486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1054 Valid, 3432 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 14:32:07,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300022 states. [2024-12-02 14:32:27,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300022 to 249742. [2024-12-02 14:32:27,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249742 states, 156470 states have (on average 1.584124752348693) internal successors, (247868), 170071 states have internal predecessors, (247868), 89062 states have call successors, (89062), 1861 states have call predecessors, (89062), 4209 states have return successors, (124673), 90849 states have call predecessors, (124673), 89057 states have call successors, (124673) [2024-12-02 14:32:28,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249742 states to 249742 states and 461603 transitions. [2024-12-02 14:32:29,084 INFO L78 Accepts]: Start accepts. Automaton has 249742 states and 461603 transitions. Word has length 108 [2024-12-02 14:32:29,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:32:29,085 INFO L471 AbstractCegarLoop]: Abstraction has 249742 states and 461603 transitions. [2024-12-02 14:32:29,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-12-02 14:32:29,086 INFO L276 IsEmpty]: Start isEmpty. Operand 249742 states and 461603 transitions. [2024-12-02 14:32:29,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 14:32:29,088 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:32:29,088 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] [2024-12-02 14:32:29,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 14:32:29,088 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:32:29,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:32:29,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1886412407, now seen corresponding path program 1 times [2024-12-02 14:32:29,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:32:29,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827078787] [2024-12-02 14:32:29,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:32:29,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:32:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:32:29,235 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:32:29,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:32:29,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827078787] [2024-12-02 14:32:29,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827078787] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:32:29,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:32:29,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 14:32:29,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141689260] [2024-12-02 14:32:29,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:32:29,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 14:32:29,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:32:29,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 14:32:29,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:32:29,237 INFO L87 Difference]: Start difference. First operand 249742 states and 461603 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 9 states have internal predecessors, (83), 6 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-12-02 14:33:04,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:33:04,494 INFO L93 Difference]: Finished difference Result 599934 states and 1108785 transitions. [2024-12-02 14:33:04,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 14:33:04,494 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 9 states have internal predecessors, (83), 6 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 108 [2024-12-02 14:33:04,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:33:07,602 INFO L225 Difference]: With dead ends: 599934 [2024-12-02 14:33:07,602 INFO L226 Difference]: Without dead ends: 431746 [2024-12-02 14:33:08,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2024-12-02 14:33:08,431 INFO L435 NwaCegarLoop]: 349 mSDtfsCounter, 2501 mSDsluCounter, 2034 mSDsCounter, 0 mSdLazyCounter, 5498 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2584 SdHoareTripleChecker+Valid, 2383 SdHoareTripleChecker+Invalid, 6048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 5498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:33:08,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2584 Valid, 2383 Invalid, 6048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 5498 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 14:33:08,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431746 states. [2024-12-02 14:33:41,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431746 to 425625. [2024-12-02 14:33:42,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425625 states, 268037 states have (on average 1.5834194532844346) internal successors, (424415), 290883 states have internal predecessors, (424415), 150052 states have call successors, (150052), 3461 states have call predecessors, (150052), 7535 states have return successors, (211018), 153024 states have call predecessors, (211018), 150047 states have call successors, (211018) [2024-12-02 14:33:45,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425625 states to 425625 states and 785485 transitions. [2024-12-02 14:33:45,812 INFO L78 Accepts]: Start accepts. Automaton has 425625 states and 785485 transitions. Word has length 108 [2024-12-02 14:33:45,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:33:45,812 INFO L471 AbstractCegarLoop]: Abstraction has 425625 states and 785485 transitions. [2024-12-02 14:33:45,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 9 states have internal predecessors, (83), 6 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-12-02 14:33:45,812 INFO L276 IsEmpty]: Start isEmpty. Operand 425625 states and 785485 transitions. [2024-12-02 14:33:45,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 14:33:45,815 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:33:45,815 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] [2024-12-02 14:33:45,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 14:33:45,815 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:33:45,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:33:45,816 INFO L85 PathProgramCache]: Analyzing trace with hash 396782136, now seen corresponding path program 1 times [2024-12-02 14:33:45,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:33:45,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101182381] [2024-12-02 14:33:45,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:33:45,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:33:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:33:45,977 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:33:45,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:33:45,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101182381] [2024-12-02 14:33:45,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101182381] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:33:45,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:33:45,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:33:45,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030504979] [2024-12-02 14:33:45,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:33:45,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:33:45,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:33:45,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:33:45,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:33:45,978 INFO L87 Difference]: Start difference. First operand 425625 states and 785485 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12)