./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec2_product21.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_9f833afb-764e-4894-85f7-632f20fa4a31/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f833afb-764e-4894-85f7-632f20fa4a31/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f833afb-764e-4894-85f7-632f20fa4a31/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f833afb-764e-4894-85f7-632f20fa4a31/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec2_product21.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f833afb-764e-4894-85f7-632f20fa4a31/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f833afb-764e-4894-85f7-632f20fa4a31/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b02d53de4cc8dbaebc187e8fa236234211af4eca5416c7869304d04f0d61a0bd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:12:20,401 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:12:20,505 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f833afb-764e-4894-85f7-632f20fa4a31/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:12:20,514 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:12:20,514 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:12:20,536 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:12:20,537 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:12:20,537 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:12:20,537 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:12:20,538 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:12:20,538 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:12:20,538 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:12:20,538 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:12:20,538 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:12:20,538 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:12:20,539 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:12:20,539 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:12:20,539 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:12:20,539 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:12:20,539 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:12:20,539 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:12:20,539 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:12:20,539 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:12:20,540 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:12:20,540 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:12:20,540 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:12:20,540 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:12:20,540 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:12:20,540 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:12:20,541 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:12:20,542 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:12:20,542 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:12:20,542 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:12:20,542 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:12:20,542 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:12:20,542 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:12:20,542 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:12:20,542 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:12:20,542 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:12:20,543 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:12:20,543 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:12:20,543 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:12:20,543 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:12:20,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:12:20,543 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:12:20,543 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:12:20,543 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:12:20,543 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:12:20,543 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_9f833afb-764e-4894-85f7-632f20fa4a31/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b02d53de4cc8dbaebc187e8fa236234211af4eca5416c7869304d04f0d61a0bd [2024-11-27 20:12:20,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:12:20,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:12:20,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:12:20,911 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:12:20,912 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:12:20,914 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f833afb-764e-4894-85f7-632f20fa4a31/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/elevator_spec2_product21.cil.c [2024-11-27 20:12:23,888 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f833afb-764e-4894-85f7-632f20fa4a31/bin/uautomizer-verify-aQ6SnzHsRB/data/961da2a1f/c3b31bb86a4c422eb402e764a306cb02/FLAG162549542 [2024-11-27 20:12:24,326 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:12:24,326 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f833afb-764e-4894-85f7-632f20fa4a31/sv-benchmarks/c/product-lines/elevator_spec2_product21.cil.c [2024-11-27 20:12:24,363 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f833afb-764e-4894-85f7-632f20fa4a31/bin/uautomizer-verify-aQ6SnzHsRB/data/961da2a1f/c3b31bb86a4c422eb402e764a306cb02/FLAG162549542 [2024-11-27 20:12:24,454 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f833afb-764e-4894-85f7-632f20fa4a31/bin/uautomizer-verify-aQ6SnzHsRB/data/961da2a1f/c3b31bb86a4c422eb402e764a306cb02 [2024-11-27 20:12:24,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:12:24,457 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:12:24,459 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:12:24,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:12:24,464 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:12:24,465 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:12:24" (1/1) ... [2024-11-27 20:12:24,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c22898a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:24, skipping insertion in model container [2024-11-27 20:12:24,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:12:24" (1/1) ... [2024-11-27 20:12:24,523 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:12:25,088 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_9f833afb-764e-4894-85f7-632f20fa4a31/sv-benchmarks/c/product-lines/elevator_spec2_product21.cil.c[40071,40084] [2024-11-27 20:12:25,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:12:25,247 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:12:25,257 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-11-27 20:12:25,259 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [86] [2024-11-27 20:12:25,259 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [452] [2024-11-27 20:12:25,260 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1120] [2024-11-27 20:12:25,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1220] [2024-11-27 20:12:25,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1574] [2024-11-27 20:12:25,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1586] [2024-11-27 20:12:25,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [1706] [2024-11-27 20:12:25,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1890] [2024-11-27 20:12:25,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1899] [2024-11-27 20:12:25,394 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_9f833afb-764e-4894-85f7-632f20fa4a31/sv-benchmarks/c/product-lines/elevator_spec2_product21.cil.c[40071,40084] [2024-11-27 20:12:25,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:12:25,503 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:12:25,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:25 WrapperNode [2024-11-27 20:12:25,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:12:25,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:12:25,505 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:12:25,505 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:12:25,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:25" (1/1) ... [2024-11-27 20:12:25,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:25" (1/1) ... [2024-11-27 20:12:25,621 INFO L138 Inliner]: procedures = 92, calls = 339, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 859 [2024-11-27 20:12:25,621 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:12:25,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:12:25,622 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:12:25,622 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:12:25,633 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:25" (1/1) ... [2024-11-27 20:12:25,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:25" (1/1) ... [2024-11-27 20:12:25,639 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:25" (1/1) ... [2024-11-27 20:12:25,687 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-27 20:12:25,687 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:25" (1/1) ... [2024-11-27 20:12:25,687 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:25" (1/1) ... [2024-11-27 20:12:25,725 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:25" (1/1) ... [2024-11-27 20:12:25,727 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:25" (1/1) ... [2024-11-27 20:12:25,754 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:25" (1/1) ... [2024-11-27 20:12:25,766 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:25" (1/1) ... [2024-11-27 20:12:25,770 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:25" (1/1) ... [2024-11-27 20:12:25,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:12:25,784 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:12:25,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:12:25,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:12:25,785 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:25" (1/1) ... [2024-11-27 20:12:25,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:12:25,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f833afb-764e-4894-85f7-632f20fa4a31/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:25,824 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f833afb-764e-4894-85f7-632f20fa4a31/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:25,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f833afb-764e-4894-85f7-632f20fa4a31/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:12:25,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:12:25,869 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-27 20:12:25,869 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-27 20:12:25,870 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-27 20:12:25,870 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-27 20:12:25,870 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-27 20:12:25,870 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-27 20:12:25,871 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-27 20:12:25,871 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-27 20:12:25,871 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-27 20:12:25,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-27 20:12:25,872 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-27 20:12:25,872 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-27 20:12:25,872 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-27 20:12:25,873 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-27 20:12:25,873 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-27 20:12:25,873 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-27 20:12:25,873 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-27 20:12:25,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-27 20:12:25,876 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-27 20:12:25,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-27 20:12:25,877 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-27 20:12:25,877 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-27 20:12:25,877 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-27 20:12:25,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-27 20:12:25,877 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-27 20:12:25,877 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-27 20:12:25,877 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-27 20:12:25,877 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-27 20:12:25,877 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-27 20:12:25,877 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-27 20:12:25,878 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-27 20:12:25,878 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-27 20:12:25,878 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-27 20:12:25,878 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-27 20:12:25,878 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-27 20:12:25,878 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-27 20:12:25,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:12:25,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 20:12:25,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 20:12:25,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-27 20:12:25,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-27 20:12:25,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-27 20:12:25,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-27 20:12:25,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-27 20:12:25,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-27 20:12:25,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-27 20:12:25,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-27 20:12:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-27 20:12:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-27 20:12:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-27 20:12:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-27 20:12:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-27 20:12:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-27 20:12:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-27 20:12:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-27 20:12:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-27 20:12:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-27 20:12:25,879 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-27 20:12:25,880 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-27 20:12:25,880 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-27 20:12:25,880 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-27 20:12:25,880 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-27 20:12:25,880 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-27 20:12:25,881 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-27 20:12:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2024-11-27 20:12:25,884 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2024-11-27 20:12:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:12:25,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:12:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-27 20:12:25,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-27 20:12:26,163 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:12:26,167 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:12:28,029 INFO L? ?]: Removed 448 outVars from TransFormulas that were not future-live. [2024-11-27 20:12:28,029 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:12:28,061 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:12:28,062 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:12:28,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:12:28 BoogieIcfgContainer [2024-11-27 20:12:28,062 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:12:28,064 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:12:28,064 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:12:28,070 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:12:28,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:12:24" (1/3) ... [2024-11-27 20:12:28,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f8e5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:12:28, skipping insertion in model container [2024-11-27 20:12:28,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:25" (2/3) ... [2024-11-27 20:12:28,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f8e5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:12:28, skipping insertion in model container [2024-11-27 20:12:28,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:12:28" (3/3) ... [2024-11-27 20:12:28,072 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product21.cil.c [2024-11-27 20:12:28,087 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:12:28,090 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec2_product21.cil.c that has 25 procedures, 562 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:12:28,174 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:12:28,191 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;@38bcdecb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:12:28,191 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:12:28,200 INFO L276 IsEmpty]: Start isEmpty. Operand has 562 states, 441 states have (on average 1.6961451247165533) internal successors, (748), 462 states have internal predecessors, (748), 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) [2024-11-27 20:12:28,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 20:12:28,245 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:28,246 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] [2024-11-27 20:12:28,246 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:28,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:28,254 INFO L85 PathProgramCache]: Analyzing trace with hash -501627926, now seen corresponding path program 1 times [2024-11-27 20:12:28,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:28,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063799251] [2024-11-27 20:12:28,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:28,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:29,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:12:29,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:29,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063799251] [2024-11-27 20:12:29,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063799251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:29,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:29,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:12:29,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883897432] [2024-11-27 20:12:29,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:29,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:12:29,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:29,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:12:29,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:12:29,200 INFO L87 Difference]: Start difference. First operand has 562 states, 441 states have (on average 1.6961451247165533) internal successors, (748), 462 states have internal predecessors, (748), 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) [2024-11-27 20:12:29,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:29,456 INFO L93 Difference]: Finished difference Result 1104 states and 1851 transitions. [2024-11-27 20:12:29,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:12:29,458 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 [2024-11-27 20:12:29,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:29,485 INFO L225 Difference]: With dead ends: 1104 [2024-11-27 20:12:29,487 INFO L226 Difference]: Without dead ends: 554 [2024-11-27 20:12:29,500 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:12:29,504 INFO L435 NwaCegarLoop]: 917 mSDtfsCounter, 5 mSDsluCounter, 1830 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2747 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:29,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2747 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:12:29,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-27 20:12:29,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-27 20:12:29,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 435 states have (on average 1.6919540229885057) internal successors, (736), 454 states have internal predecessors, (736), 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) [2024-11-27 20:12:29,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 921 transitions. [2024-11-27 20:12:29,654 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 921 transitions. Word has length 88 [2024-11-27 20:12:29,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:29,657 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 921 transitions. [2024-11-27 20:12:29,657 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) [2024-11-27 20:12:29,657 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 921 transitions. [2024-11-27 20:12:29,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-27 20:12:29,670 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:29,671 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] [2024-11-27 20:12:29,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:12:29,675 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:29,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:29,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1336688845, now seen corresponding path program 1 times [2024-11-27 20:12:29,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:29,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339671337] [2024-11-27 20:12:29,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:29,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:30,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:12:30,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:30,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339671337] [2024-11-27 20:12:30,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339671337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:30,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:30,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:12:30,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389144785] [2024-11-27 20:12:30,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:30,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:12:30,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:30,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:12:30,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:12:30,069 INFO L87 Difference]: Start difference. First operand 554 states and 921 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) [2024-11-27 20:12:30,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:30,218 INFO L93 Difference]: Finished difference Result 1090 states and 1819 transitions. [2024-11-27 20:12:30,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:12:30,219 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 [2024-11-27 20:12:30,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:30,229 INFO L225 Difference]: With dead ends: 1090 [2024-11-27 20:12:30,230 INFO L226 Difference]: Without dead ends: 554 [2024-11-27 20:12:30,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:12:30,236 INFO L435 NwaCegarLoop]: 910 mSDtfsCounter, 4 mSDsluCounter, 1816 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2726 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:30,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2726 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:12:30,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-27 20:12:30,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-27 20:12:30,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 435 states have (on average 1.6896551724137931) internal successors, (735), 454 states have internal predecessors, (735), 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) [2024-11-27 20:12:30,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 920 transitions. [2024-11-27 20:12:30,307 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 920 transitions. Word has length 90 [2024-11-27 20:12:30,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:30,308 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 920 transitions. [2024-11-27 20:12:30,309 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) [2024-11-27 20:12:30,309 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 920 transitions. [2024-11-27 20:12:30,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-27 20:12:30,320 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:30,320 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] [2024-11-27 20:12:30,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:12:30,322 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:30,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:30,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1795375526, now seen corresponding path program 1 times [2024-11-27 20:12:30,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:30,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302572308] [2024-11-27 20:12:30,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:30,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:30,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:12:30,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:30,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302572308] [2024-11-27 20:12:30,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302572308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:30,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:30,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:12:30,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082265592] [2024-11-27 20:12:30,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:30,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:12:30,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:30,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:12:30,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:12:30,669 INFO L87 Difference]: Start difference. First operand 554 states and 920 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) [2024-11-27 20:12:30,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:30,797 INFO L93 Difference]: Finished difference Result 1090 states and 1818 transitions. [2024-11-27 20:12:30,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:12:30,798 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 [2024-11-27 20:12:30,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:30,806 INFO L225 Difference]: With dead ends: 1090 [2024-11-27 20:12:30,807 INFO L226 Difference]: Without dead ends: 554 [2024-11-27 20:12:30,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:12:30,811 INFO L435 NwaCegarLoop]: 910 mSDtfsCounter, 3 mSDsluCounter, 1816 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2726 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:30,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2726 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:12:30,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-27 20:12:30,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-27 20:12:30,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 435 states have (on average 1.6873563218390804) internal successors, (734), 454 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) [2024-11-27 20:12:30,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 919 transitions. [2024-11-27 20:12:30,859 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 919 transitions. Word has length 91 [2024-11-27 20:12:30,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:30,861 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 919 transitions. [2024-11-27 20:12:30,861 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) [2024-11-27 20:12:30,861 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 919 transitions. [2024-11-27 20:12:30,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-27 20:12:30,867 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:30,867 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:12:30,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:12:30,868 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:30,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:30,870 INFO L85 PathProgramCache]: Analyzing trace with hash -50992015, now seen corresponding path program 1 times [2024-11-27 20:12:30,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:30,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249045824] [2024-11-27 20:12:30,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:30,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:31,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:12:31,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:31,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249045824] [2024-11-27 20:12:31,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249045824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:31,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:31,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:12:31,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26419596] [2024-11-27 20:12:31,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:31,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:12:31,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:31,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:12:31,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:12:31,177 INFO L87 Difference]: Start difference. First operand 554 states and 919 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) [2024-11-27 20:12:31,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:31,246 INFO L93 Difference]: Finished difference Result 1090 states and 1817 transitions. [2024-11-27 20:12:31,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:12:31,246 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 [2024-11-27 20:12:31,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:31,253 INFO L225 Difference]: With dead ends: 1090 [2024-11-27 20:12:31,253 INFO L226 Difference]: Without dead ends: 554 [2024-11-27 20:12:31,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:12:31,260 INFO L435 NwaCegarLoop]: 910 mSDtfsCounter, 2 mSDsluCounter, 1816 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2726 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:31,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2726 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:12:31,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-27 20:12:31,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-27 20:12:31,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 435 states have (on average 1.6850574712643678) internal successors, (733), 454 states have internal predecessors, (733), 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) [2024-11-27 20:12:31,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 918 transitions. [2024-11-27 20:12:31,308 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 918 transitions. Word has length 92 [2024-11-27 20:12:31,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:31,308 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 918 transitions. [2024-11-27 20:12:31,308 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) [2024-11-27 20:12:31,309 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 918 transitions. [2024-11-27 20:12:31,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-27 20:12:31,316 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:31,316 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] [2024-11-27 20:12:31,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:12:31,317 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:31,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:31,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1755546818, now seen corresponding path program 1 times [2024-11-27 20:12:31,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:31,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794210972] [2024-11-27 20:12:31,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:31,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:31,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:12:31,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:31,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794210972] [2024-11-27 20:12:31,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794210972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:31,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:31,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:12:31,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928289878] [2024-11-27 20:12:31,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:31,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:12:31,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:31,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:12:31,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:12:31,570 INFO L87 Difference]: Start difference. First operand 554 states and 918 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) [2024-11-27 20:12:31,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:31,651 INFO L93 Difference]: Finished difference Result 1090 states and 1816 transitions. [2024-11-27 20:12:31,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:12:31,652 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 [2024-11-27 20:12:31,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:31,660 INFO L225 Difference]: With dead ends: 1090 [2024-11-27 20:12:31,660 INFO L226 Difference]: Without dead ends: 554 [2024-11-27 20:12:31,663 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:12:31,665 INFO L435 NwaCegarLoop]: 910 mSDtfsCounter, 1 mSDsluCounter, 1816 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2726 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:31,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2726 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:12:31,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-27 20:12:31,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-27 20:12:31,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 435 states have (on average 1.6827586206896552) internal successors, (732), 454 states have internal predecessors, (732), 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) [2024-11-27 20:12:31,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 917 transitions. [2024-11-27 20:12:31,718 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 917 transitions. Word has length 93 [2024-11-27 20:12:31,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:31,719 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 917 transitions. [2024-11-27 20:12:31,719 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) [2024-11-27 20:12:31,719 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 917 transitions. [2024-11-27 20:12:31,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-27 20:12:31,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:31,725 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] [2024-11-27 20:12:31,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:12:31,726 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:31,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:31,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1291960341, now seen corresponding path program 1 times [2024-11-27 20:12:31,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:31,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098993304] [2024-11-27 20:12:31,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:31,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:32,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:12:32,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:32,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098993304] [2024-11-27 20:12:32,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098993304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:32,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:32,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:12:32,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757586451] [2024-11-27 20:12:32,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:32,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:12:32,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:32,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:12:32,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:12:32,092 INFO L87 Difference]: Start difference. First operand 554 states and 917 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) [2024-11-27 20:12:32,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:32,281 INFO L93 Difference]: Finished difference Result 1056 states and 1748 transitions. [2024-11-27 20:12:32,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:12:32,282 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 [2024-11-27 20:12:32,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:32,289 INFO L225 Difference]: With dead ends: 1056 [2024-11-27 20:12:32,289 INFO L226 Difference]: Without dead ends: 569 [2024-11-27 20:12:32,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:12:32,293 INFO L435 NwaCegarLoop]: 907 mSDtfsCounter, 91 mSDsluCounter, 4454 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5361 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:32,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5361 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:12:32,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-11-27 20:12:32,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 567. [2024-11-27 20:12:32,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 445 states have (on average 1.6786516853932585) internal successors, (747), 466 states have internal predecessors, (747), 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) [2024-11-27 20:12:32,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 936 transitions. [2024-11-27 20:12:32,333 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 936 transitions. Word has length 94 [2024-11-27 20:12:32,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:32,334 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 936 transitions. [2024-11-27 20:12:32,334 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) [2024-11-27 20:12:32,334 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 936 transitions. [2024-11-27 20:12:32,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-27 20:12:32,340 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:32,340 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] [2024-11-27 20:12:32,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:12:32,340 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:32,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:32,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1305493142, now seen corresponding path program 1 times [2024-11-27 20:12:32,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:32,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988856116] [2024-11-27 20:12:32,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:32,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:32,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:12:32,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:32,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988856116] [2024-11-27 20:12:32,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988856116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:32,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:32,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:12:32,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377700697] [2024-11-27 20:12:32,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:32,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:12:32,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:32,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:12:32,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:12:32,537 INFO L87 Difference]: Start difference. First operand 567 states and 936 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) [2024-11-27 20:12:32,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:32,620 INFO L93 Difference]: Finished difference Result 1108 states and 1842 transitions. [2024-11-27 20:12:32,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:12:32,620 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 [2024-11-27 20:12:32,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:32,628 INFO L225 Difference]: With dead ends: 1108 [2024-11-27 20:12:32,628 INFO L226 Difference]: Without dead ends: 548 [2024-11-27 20:12:32,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:12:32,633 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 0 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:32,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2728 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:12:32,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-11-27 20:12:32,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2024-11-27 20:12:32,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 429 states have (on average 1.6736596736596736) internal successors, (718), 448 states have internal predecessors, (718), 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) [2024-11-27 20:12:32,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 903 transitions. [2024-11-27 20:12:32,668 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 903 transitions. Word has length 94 [2024-11-27 20:12:32,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:32,670 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 903 transitions. [2024-11-27 20:12:32,670 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) [2024-11-27 20:12:32,671 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 903 transitions. [2024-11-27 20:12:32,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-27 20:12:32,675 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:32,675 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] [2024-11-27 20:12:32,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:12:32,676 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:32,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:32,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1261503243, now seen corresponding path program 1 times [2024-11-27 20:12:32,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:32,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072907341] [2024-11-27 20:12:32,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:32,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:32,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:12:32,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:32,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072907341] [2024-11-27 20:12:32,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072907341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:32,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:32,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:12:32,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201660387] [2024-11-27 20:12:32,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:32,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:12:32,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:32,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:12:32,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:12:32,954 INFO L87 Difference]: Start difference. First operand 548 states and 903 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) [2024-11-27 20:12:33,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:33,238 INFO L93 Difference]: Finished difference Result 1053 states and 1740 transitions. [2024-11-27 20:12:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:12:33,239 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 [2024-11-27 20:12:33,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:33,246 INFO L225 Difference]: With dead ends: 1053 [2024-11-27 20:12:33,246 INFO L226 Difference]: Without dead ends: 557 [2024-11-27 20:12:33,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:12:33,250 INFO L435 NwaCegarLoop]: 860 mSDtfsCounter, 55 mSDsluCounter, 3411 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4271 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:33,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4271 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:12:33,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-27 20:12:33,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 548. [2024-11-27 20:12:33,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 429 states have (on average 1.6643356643356644) internal successors, (714), 448 states have internal predecessors, (714), 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) [2024-11-27 20:12:33,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 899 transitions. [2024-11-27 20:12:33,288 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 899 transitions. Word has length 95 [2024-11-27 20:12:33,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:33,288 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 899 transitions. [2024-11-27 20:12:33,289 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) [2024-11-27 20:12:33,289 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 899 transitions. [2024-11-27 20:12:33,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-27 20:12:33,293 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:33,293 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] [2024-11-27 20:12:33,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:12:33,294 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:33,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:33,294 INFO L85 PathProgramCache]: Analyzing trace with hash 354367890, now seen corresponding path program 1 times [2024-11-27 20:12:33,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:33,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209048109] [2024-11-27 20:12:33,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:33,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:33,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:12:33,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:33,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209048109] [2024-11-27 20:12:33,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209048109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:33,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:33,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:12:33,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045134978] [2024-11-27 20:12:33,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:33,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:12:33,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:33,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:12:33,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:12:33,599 INFO L87 Difference]: Start difference. First operand 548 states and 899 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) [2024-11-27 20:12:33,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:33,899 INFO L93 Difference]: Finished difference Result 1053 states and 1736 transitions. [2024-11-27 20:12:33,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:12:33,900 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 [2024-11-27 20:12:33,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:33,907 INFO L225 Difference]: With dead ends: 1053 [2024-11-27 20:12:33,907 INFO L226 Difference]: Without dead ends: 557 [2024-11-27 20:12:33,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:12:33,912 INFO L435 NwaCegarLoop]: 860 mSDtfsCounter, 54 mSDsluCounter, 3411 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4271 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:33,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4271 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:12:33,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-27 20:12:33,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 548. [2024-11-27 20:12:33,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 429 states have (on average 1.655011655011655) internal successors, (710), 448 states have internal predecessors, (710), 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) [2024-11-27 20:12:33,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 895 transitions. [2024-11-27 20:12:33,949 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 895 transitions. Word has length 96 [2024-11-27 20:12:33,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:33,949 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 895 transitions. [2024-11-27 20:12:33,950 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) [2024-11-27 20:12:33,950 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 895 transitions. [2024-11-27 20:12:33,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 20:12:33,954 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:33,954 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] [2024-11-27 20:12:33,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:12:33,955 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:33,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:33,960 INFO L85 PathProgramCache]: Analyzing trace with hash -617057360, now seen corresponding path program 1 times [2024-11-27 20:12:33,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:33,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186334563] [2024-11-27 20:12:33,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:33,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:34,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:12:34,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:34,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186334563] [2024-11-27 20:12:34,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186334563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:34,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:34,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:12:34,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962652804] [2024-11-27 20:12:34,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:34,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:12:34,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:34,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:12:34,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:12:34,224 INFO L87 Difference]: Start difference. First operand 548 states and 895 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) [2024-11-27 20:12:34,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:34,514 INFO L93 Difference]: Finished difference Result 1053 states and 1732 transitions. [2024-11-27 20:12:34,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:12:34,518 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 [2024-11-27 20:12:34,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:34,527 INFO L225 Difference]: With dead ends: 1053 [2024-11-27 20:12:34,527 INFO L226 Difference]: Without dead ends: 557 [2024-11-27 20:12:34,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:12:34,532 INFO L435 NwaCegarLoop]: 859 mSDtfsCounter, 53 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4253 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:34,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4253 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:12:34,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-27 20:12:34,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 548. [2024-11-27 20:12:34,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 429 states have (on average 1.6456876456876457) internal successors, (706), 448 states have internal predecessors, (706), 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) [2024-11-27 20:12:34,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 891 transitions. [2024-11-27 20:12:34,570 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 891 transitions. Word has length 97 [2024-11-27 20:12:34,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:34,571 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 891 transitions. [2024-11-27 20:12:34,571 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) [2024-11-27 20:12:34,571 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 891 transitions. [2024-11-27 20:12:34,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 20:12:34,575 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:34,576 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] [2024-11-27 20:12:34,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:12:34,577 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:34,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:34,578 INFO L85 PathProgramCache]: Analyzing trace with hash -740931792, now seen corresponding path program 1 times [2024-11-27 20:12:34,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:34,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850652969] [2024-11-27 20:12:34,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:34,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:34,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:12:34,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:34,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850652969] [2024-11-27 20:12:34,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850652969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:34,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:34,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:12:34,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586328836] [2024-11-27 20:12:34,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:34,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:12:34,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:34,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:12:34,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:12:34,880 INFO L87 Difference]: Start difference. First operand 548 states and 891 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) [2024-11-27 20:12:35,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:35,019 INFO L93 Difference]: Finished difference Result 1044 states and 1714 transitions. [2024-11-27 20:12:35,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:12:35,020 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 [2024-11-27 20:12:35,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:35,029 INFO L225 Difference]: With dead ends: 1044 [2024-11-27 20:12:35,029 INFO L226 Difference]: Without dead ends: 527 [2024-11-27 20:12:35,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:12:35,035 INFO L435 NwaCegarLoop]: 880 mSDtfsCounter, 84 mSDsluCounter, 4327 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5207 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:35,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5207 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:12:35,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-11-27 20:12:35,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2024-11-27 20:12:35,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 408 states have (on average 1.6470588235294117) internal successors, (672), 427 states have internal predecessors, (672), 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) [2024-11-27 20:12:35,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 857 transitions. [2024-11-27 20:12:35,074 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 857 transitions. Word has length 97 [2024-11-27 20:12:35,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:35,074 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 857 transitions. [2024-11-27 20:12:35,074 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) [2024-11-27 20:12:35,075 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 857 transitions. [2024-11-27 20:12:35,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-27 20:12:35,080 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:35,080 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] [2024-11-27 20:12:35,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 20:12:35,081 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:35,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:35,082 INFO L85 PathProgramCache]: Analyzing trace with hash -190291859, now seen corresponding path program 1 times [2024-11-27 20:12:35,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:35,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285701007] [2024-11-27 20:12:35,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:35,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:35,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:12:35,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:35,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285701007] [2024-11-27 20:12:35,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285701007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:35,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:35,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:12:35,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982328932] [2024-11-27 20:12:35,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:35,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:12:35,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:35,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:12:35,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:12:35,377 INFO L87 Difference]: Start difference. First operand 527 states and 857 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) [2024-11-27 20:12:35,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:35,516 INFO L93 Difference]: Finished difference Result 1023 states and 1680 transitions. [2024-11-27 20:12:35,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:12:35,517 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 [2024-11-27 20:12:35,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:35,524 INFO L225 Difference]: With dead ends: 1023 [2024-11-27 20:12:35,524 INFO L226 Difference]: Without dead ends: 527 [2024-11-27 20:12:35,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:12:35,529 INFO L435 NwaCegarLoop]: 840 mSDtfsCounter, 17 mSDsluCounter, 3351 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4191 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:35,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4191 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:12:35,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-11-27 20:12:35,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2024-11-27 20:12:35,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 408 states have (on average 1.6446078431372548) internal successors, (671), 427 states have internal predecessors, (671), 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) [2024-11-27 20:12:35,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 856 transitions. [2024-11-27 20:12:35,565 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 856 transitions. Word has length 98 [2024-11-27 20:12:35,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:35,566 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 856 transitions. [2024-11-27 20:12:35,566 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) [2024-11-27 20:12:35,566 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 856 transitions. [2024-11-27 20:12:35,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-27 20:12:35,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:35,570 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] [2024-11-27 20:12:35,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 20:12:35,571 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:35,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:35,571 INFO L85 PathProgramCache]: Analyzing trace with hash 630713963, now seen corresponding path program 1 times [2024-11-27 20:12:35,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:35,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039762611] [2024-11-27 20:12:35,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:35,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:35,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:12:35,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:35,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039762611] [2024-11-27 20:12:35,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039762611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:35,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:35,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:12:35,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226364136] [2024-11-27 20:12:35,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:35,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:12:35,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:35,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:12:35,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:12:35,800 INFO L87 Difference]: Start difference. First operand 527 states and 856 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) [2024-11-27 20:12:35,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:35,936 INFO L93 Difference]: Finished difference Result 1023 states and 1679 transitions. [2024-11-27 20:12:35,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:12:35,937 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 [2024-11-27 20:12:35,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:35,944 INFO L225 Difference]: With dead ends: 1023 [2024-11-27 20:12:35,944 INFO L226 Difference]: Without dead ends: 527 [2024-11-27 20:12:35,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:12:35,950 INFO L435 NwaCegarLoop]: 840 mSDtfsCounter, 16 mSDsluCounter, 3351 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4191 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:35,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4191 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:12:35,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-11-27 20:12:35,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2024-11-27 20:12:35,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 408 states have (on average 1.642156862745098) internal successors, (670), 427 states have internal predecessors, (670), 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) [2024-11-27 20:12:35,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 855 transitions. [2024-11-27 20:12:35,981 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 855 transitions. Word has length 99 [2024-11-27 20:12:35,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:35,981 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 855 transitions. [2024-11-27 20:12:35,982 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) [2024-11-27 20:12:35,982 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 855 transitions. [2024-11-27 20:12:35,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 20:12:35,986 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:35,986 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] [2024-11-27 20:12:35,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 20:12:35,987 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:35,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:35,987 INFO L85 PathProgramCache]: Analyzing trace with hash 788267848, now seen corresponding path program 1 times [2024-11-27 20:12:35,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:35,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966091219] [2024-11-27 20:12:35,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:35,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:36,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:12:36,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:36,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966091219] [2024-11-27 20:12:36,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966091219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:36,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:36,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:12:36,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934918753] [2024-11-27 20:12:36,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:36,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:12:36,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:36,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:12:36,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:12:36,191 INFO L87 Difference]: Start difference. First operand 527 states and 855 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) [2024-11-27 20:12:36,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:36,263 INFO L93 Difference]: Finished difference Result 1017 states and 1667 transitions. [2024-11-27 20:12:36,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:12:36,264 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 [2024-11-27 20:12:36,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:36,271 INFO L225 Difference]: With dead ends: 1017 [2024-11-27 20:12:36,271 INFO L226 Difference]: Without dead ends: 527 [2024-11-27 20:12:36,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:12:36,275 INFO L435 NwaCegarLoop]: 843 mSDtfsCounter, 5 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:36,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2519 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:12:36,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-11-27 20:12:36,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2024-11-27 20:12:36,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 408 states have (on average 1.6397058823529411) internal successors, (669), 427 states have internal predecessors, (669), 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) [2024-11-27 20:12:36,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 854 transitions. [2024-11-27 20:12:36,306 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 854 transitions. Word has length 100 [2024-11-27 20:12:36,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:36,307 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 854 transitions. [2024-11-27 20:12:36,308 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) [2024-11-27 20:12:36,308 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 854 transitions. [2024-11-27 20:12:36,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-27 20:12:36,312 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:36,312 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] [2024-11-27 20:12:36,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 20:12:36,312 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:36,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:36,313 INFO L85 PathProgramCache]: Analyzing trace with hash -582203818, now seen corresponding path program 1 times [2024-11-27 20:12:36,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:36,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900951113] [2024-11-27 20:12:36,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:36,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:36,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:12:36,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:36,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900951113] [2024-11-27 20:12:36,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900951113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:36,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:36,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:12:36,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454793405] [2024-11-27 20:12:36,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:36,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:12:36,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:36,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:12:36,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:12:36,725 INFO L87 Difference]: Start difference. First operand 527 states and 854 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) [2024-11-27 20:12:39,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:39,539 INFO L93 Difference]: Finished difference Result 1013 states and 1679 transitions. [2024-11-27 20:12:39,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:12:39,540 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 [2024-11-27 20:12:39,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:39,546 INFO L225 Difference]: With dead ends: 1013 [2024-11-27 20:12:39,546 INFO L226 Difference]: Without dead ends: 531 [2024-11-27 20:12:39,550 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 [2024-11-27 20:12:39,551 INFO L435 NwaCegarLoop]: 374 mSDtfsCounter, 1303 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 2720 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 3110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 2720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:39,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1303 Valid, 1568 Invalid, 3110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 2720 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-27 20:12:39,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-27 20:12:39,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-11-27 20:12:39,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 411 states have (on average 1.635036496350365) internal successors, (672), 430 states have internal predecessors, (672), 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) [2024-11-27 20:12:39,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 873 transitions. [2024-11-27 20:12:39,593 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 873 transitions. Word has length 101 [2024-11-27 20:12:39,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:39,593 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 873 transitions. [2024-11-27 20:12:39,593 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) [2024-11-27 20:12:39,594 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 873 transitions. [2024-11-27 20:12:39,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-27 20:12:39,597 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:39,597 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] [2024-11-27 20:12:39,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 20:12:39,598 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:39,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:39,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1790944650, now seen corresponding path program 1 times [2024-11-27 20:12:39,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:39,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107870492] [2024-11-27 20:12:39,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:39,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:39,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:12:39,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:39,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107870492] [2024-11-27 20:12:39,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107870492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:39,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:39,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:12:39,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022962210] [2024-11-27 20:12:39,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:39,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:12:39,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:39,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:12:39,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:12:39,843 INFO L87 Difference]: Start difference. First operand 531 states and 873 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) [2024-11-27 20:12:44,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:44,791 INFO L93 Difference]: Finished difference Result 1908 states and 3245 transitions. [2024-11-27 20:12:44,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:12:44,792 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 [2024-11-27 20:12:44,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:44,807 INFO L225 Difference]: With dead ends: 1908 [2024-11-27 20:12:44,808 INFO L226 Difference]: Without dead ends: 1422 [2024-11-27 20:12:44,812 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 [2024-11-27 20:12:44,814 INFO L435 NwaCegarLoop]: 601 mSDtfsCounter, 2384 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 4922 mSolverCounterSat, 615 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2463 SdHoareTripleChecker+Valid, 2525 SdHoareTripleChecker+Invalid, 5537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 615 IncrementalHoareTripleChecker+Valid, 4922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:44,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2463 Valid, 2525 Invalid, 5537 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [615 Valid, 4922 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-27 20:12:44,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2024-11-27 20:12:44,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1364. [2024-11-27 20:12:44,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1364 states, 1051 states have (on average 1.6460513796384395) internal successors, (1730), 1099 states have internal predecessors, (1730), 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) [2024-11-27 20:12:44,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 2249 transitions. [2024-11-27 20:12:44,943 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 2249 transitions. Word has length 102 [2024-11-27 20:12:44,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:44,944 INFO L471 AbstractCegarLoop]: Abstraction has 1364 states and 2249 transitions. [2024-11-27 20:12:44,944 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) [2024-11-27 20:12:44,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 2249 transitions. [2024-11-27 20:12:44,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-27 20:12:44,947 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:44,948 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] [2024-11-27 20:12:44,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 20:12:44,948 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:44,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:44,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1519728000, now seen corresponding path program 1 times [2024-11-27 20:12:44,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:44,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109749912] [2024-11-27 20:12:44,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:44,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:45,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:12:45,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:45,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109749912] [2024-11-27 20:12:45,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109749912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:45,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:45,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:12:45,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055079684] [2024-11-27 20:12:45,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:45,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:12:45,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:45,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:12:45,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:12:45,187 INFO L87 Difference]: Start difference. First operand 1364 states and 2249 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) [2024-11-27 20:12:49,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:49,050 INFO L93 Difference]: Finished difference Result 4684 states and 7909 transitions. [2024-11-27 20:12:49,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:12:49,051 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 [2024-11-27 20:12:49,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:49,091 INFO L225 Difference]: With dead ends: 4684 [2024-11-27 20:12:49,091 INFO L226 Difference]: Without dead ends: 3366 [2024-11-27 20:12:49,103 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 [2024-11-27 20:12:49,105 INFO L435 NwaCegarLoop]: 702 mSDtfsCounter, 3238 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 3288 mSolverCounterSat, 837 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3280 SdHoareTripleChecker+Valid, 1814 SdHoareTripleChecker+Invalid, 4125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 837 IncrementalHoareTripleChecker+Valid, 3288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:49,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3280 Valid, 1814 Invalid, 4125 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [837 Valid, 3288 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-27 20:12:49,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3366 states. [2024-11-27 20:12:49,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3366 to 2955. [2024-11-27 20:12:49,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2955 states, 2228 states have (on average 1.6395870736086176) internal successors, (3653), 2341 states have internal predecessors, (3653), 597 states have call successors, (597), 121 states have call predecessors, (597), 129 states have return successors, (662), 581 states have call predecessors, (662), 592 states have call successors, (662) [2024-11-27 20:12:49,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2955 states to 2955 states and 4912 transitions. [2024-11-27 20:12:49,397 INFO L78 Accepts]: Start accepts. Automaton has 2955 states and 4912 transitions. Word has length 104 [2024-11-27 20:12:49,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:49,398 INFO L471 AbstractCegarLoop]: Abstraction has 2955 states and 4912 transitions. [2024-11-27 20:12:49,398 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) [2024-11-27 20:12:49,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2955 states and 4912 transitions. [2024-11-27 20:12:49,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-27 20:12:49,402 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:49,402 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] [2024-11-27 20:12:49,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 20:12:49,402 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:49,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:49,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1512944424, now seen corresponding path program 1 times [2024-11-27 20:12:49,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:49,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095882291] [2024-11-27 20:12:49,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:49,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:49,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:12:49,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:49,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095882291] [2024-11-27 20:12:49,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095882291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:49,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:49,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:12:49,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832219817] [2024-11-27 20:12:49,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:49,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:12:49,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:49,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:12:49,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:12:49,612 INFO L87 Difference]: Start difference. First operand 2955 states and 4912 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) [2024-11-27 20:12:53,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:53,571 INFO L93 Difference]: Finished difference Result 10947 states and 18659 transitions. [2024-11-27 20:12:53,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:12:53,572 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 [2024-11-27 20:12:53,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:53,651 INFO L225 Difference]: With dead ends: 10947 [2024-11-27 20:12:53,651 INFO L226 Difference]: Without dead ends: 8039 [2024-11-27 20:12:53,671 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 [2024-11-27 20:12:53,671 INFO L435 NwaCegarLoop]: 701 mSDtfsCounter, 3251 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 3251 mSolverCounterSat, 860 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3294 SdHoareTripleChecker+Valid, 1827 SdHoareTripleChecker+Invalid, 4111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 860 IncrementalHoareTripleChecker+Valid, 3251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:53,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3294 Valid, 1827 Invalid, 4111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [860 Valid, 3251 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-27 20:12:53,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8039 states. [2024-11-27 20:12:54,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8039 to 6873. [2024-11-27 20:12:54,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6873 states, 5066 states have (on average 1.629490722463482) internal successors, (8255), 5348 states have internal predecessors, (8255), 1532 states have call successors, (1532), 237 states have call predecessors, (1532), 274 states have return successors, (1744), 1507 states have call predecessors, (1744), 1527 states have call successors, (1744) [2024-11-27 20:12:54,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6873 states to 6873 states and 11531 transitions. [2024-11-27 20:12:54,373 INFO L78 Accepts]: Start accepts. Automaton has 6873 states and 11531 transitions. Word has length 105 [2024-11-27 20:12:54,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:54,374 INFO L471 AbstractCegarLoop]: Abstraction has 6873 states and 11531 transitions. [2024-11-27 20:12:54,374 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) [2024-11-27 20:12:54,374 INFO L276 IsEmpty]: Start isEmpty. Operand 6873 states and 11531 transitions. [2024-11-27 20:12:54,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-27 20:12:54,377 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:54,378 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] [2024-11-27 20:12:54,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 20:12:54,378 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:54,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:54,379 INFO L85 PathProgramCache]: Analyzing trace with hash 474151259, now seen corresponding path program 1 times [2024-11-27 20:12:54,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:54,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434073748] [2024-11-27 20:12:54,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:54,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:54,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:12:54,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:54,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434073748] [2024-11-27 20:12:54,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434073748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:54,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:54,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:12:54,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912320661] [2024-11-27 20:12:54,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:54,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:12:54,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:54,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:12:54,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:12:54,617 INFO L87 Difference]: Start difference. First operand 6873 states and 11531 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) [2024-11-27 20:12:59,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:59,102 INFO L93 Difference]: Finished difference Result 27384 states and 47116 transitions. [2024-11-27 20:12:59,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:12:59,103 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 [2024-11-27 20:12:59,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:59,384 INFO L225 Difference]: With dead ends: 27384 [2024-11-27 20:12:59,385 INFO L226 Difference]: Without dead ends: 20560 [2024-11-27 20:12:59,425 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 [2024-11-27 20:12:59,426 INFO L435 NwaCegarLoop]: 707 mSDtfsCounter, 3263 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 3256 mSolverCounterSat, 864 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3307 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 4120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 864 IncrementalHoareTripleChecker+Valid, 3256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:59,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3307 Valid, 1848 Invalid, 4120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [864 Valid, 3256 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-27 20:12:59,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20560 states. [2024-11-27 20:13:01,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20560 to 17023. [2024-11-27 20:13:01,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17023 states, 12297 states have (on average 1.6197446531674393) internal successors, (19918), 13031 states have internal predecessors, (19918), 4121 states have call successors, (4121), 469 states have call predecessors, (4121), 604 states have return successors, (4824), 4079 states have call predecessors, (4824), 4116 states have call successors, (4824) [2024-11-27 20:13:01,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17023 states to 17023 states and 28863 transitions. [2024-11-27 20:13:01,550 INFO L78 Accepts]: Start accepts. Automaton has 17023 states and 28863 transitions. Word has length 106 [2024-11-27 20:13:01,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:13:01,551 INFO L471 AbstractCegarLoop]: Abstraction has 17023 states and 28863 transitions. [2024-11-27 20:13:01,552 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) [2024-11-27 20:13:01,553 INFO L276 IsEmpty]: Start isEmpty. Operand 17023 states and 28863 transitions. [2024-11-27 20:13:01,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-27 20:13:01,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:13:01,558 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] [2024-11-27 20:13:01,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 20:13:01,558 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:13:01,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:01,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1802799203, now seen corresponding path program 1 times [2024-11-27 20:13:01,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:13:01,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829922114] [2024-11-27 20:13:01,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:01,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:01,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:01,830 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:13:01,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:13:01,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829922114] [2024-11-27 20:13:01,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829922114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:13:01,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:13:01,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:13:01,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402387436] [2024-11-27 20:13:01,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:13:01,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:13:01,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:13:01,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:13:01,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:13:01,833 INFO L87 Difference]: Start difference. First operand 17023 states and 28863 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) [2024-11-27 20:13:08,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:13:08,801 INFO L93 Difference]: Finished difference Result 72583 states and 126082 transitions. [2024-11-27 20:13:08,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:13:08,802 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 [2024-11-27 20:13:08,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:13:09,323 INFO L225 Difference]: With dead ends: 72583 [2024-11-27 20:13:09,324 INFO L226 Difference]: Without dead ends: 55613 [2024-11-27 20:13:09,451 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 [2024-11-27 20:13:09,454 INFO L435 NwaCegarLoop]: 713 mSDtfsCounter, 3275 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 3265 mSolverCounterSat, 866 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3320 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 4131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 866 IncrementalHoareTripleChecker+Valid, 3265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:13:09,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3320 Valid, 1869 Invalid, 4131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [866 Valid, 3265 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-27 20:13:09,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55613 states. [2024-11-27 20:13:13,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55613 to 44633. [2024-11-27 20:13:13,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44633 states, 31772 states have (on average 1.6120168702001763) internal successors, (51217), 33746 states have internal predecessors, (51217), 11470 states have call successors, (11470), 933 states have call predecessors, (11470), 1390 states have return successors, (13798), 11391 states have call predecessors, (13798), 11465 states have call successors, (13798) [2024-11-27 20:13:14,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44633 states to 44633 states and 76485 transitions. [2024-11-27 20:13:14,232 INFO L78 Accepts]: Start accepts. Automaton has 44633 states and 76485 transitions. Word has length 107 [2024-11-27 20:13:14,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:13:14,233 INFO L471 AbstractCegarLoop]: Abstraction has 44633 states and 76485 transitions. [2024-11-27 20:13:14,233 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) [2024-11-27 20:13:14,233 INFO L276 IsEmpty]: Start isEmpty. Operand 44633 states and 76485 transitions. [2024-11-27 20:13:14,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-27 20:13:14,237 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:13:14,237 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] [2024-11-27 20:13:14,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 20:13:14,238 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:13:14,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:14,239 INFO L85 PathProgramCache]: Analyzing trace with hash -787289802, now seen corresponding path program 1 times [2024-11-27 20:13:14,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:13:14,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621606028] [2024-11-27 20:13:14,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:14,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:15,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:13:15,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:13:15,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621606028] [2024-11-27 20:13:15,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621606028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:13:15,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:13:15,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:13:15,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813419988] [2024-11-27 20:13:15,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:13:15,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:13:15,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:13:15,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:13:15,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:13:15,080 INFO L87 Difference]: Start difference. First operand 44633 states and 76485 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)