./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec2_product01.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_d811ab49-828a-49ea-848c-43bf8580f532/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d811ab49-828a-49ea-848c-43bf8580f532/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d811ab49-828a-49ea-848c-43bf8580f532/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d811ab49-828a-49ea-848c-43bf8580f532/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d811ab49-828a-49ea-848c-43bf8580f532/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d811ab49-828a-49ea-848c-43bf8580f532/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8190dbbeca15ebdc96e247bb91a06680a00a60089c25180495df59d4a11849af --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 05:49:59,160 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 05:49:59,219 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d811ab49-828a-49ea-848c-43bf8580f532/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 05:49:59,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 05:49:59,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 05:49:59,246 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 05:49:59,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 05:49:59,247 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 05:49:59,247 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 05:49:59,247 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 05:49:59,247 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 05:49:59,247 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 05:49:59,248 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 05:49:59,248 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 05:49:59,248 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 05:49:59,248 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 05:49:59,248 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 05:49:59,248 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 05:49:59,248 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 05:49:59,249 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 05:49:59,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 05:49:59,249 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 05:49:59,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 05:49:59,249 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 05:49:59,249 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 05:49:59,249 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 05:49:59,249 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 05:49:59,249 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 05:49:59,249 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 05:49:59,249 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:49:59,249 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:49:59,250 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:49:59,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:49:59,250 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 05:49:59,250 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:49:59,250 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:49:59,250 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:49:59,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:49:59,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 05:49:59,250 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 05:49:59,250 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 05:49:59,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 05:49:59,250 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 05:49:59,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 05:49:59,251 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 05:49:59,251 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 05:49:59,251 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 05:49:59,251 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 05:49:59,251 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_d811ab49-828a-49ea-848c-43bf8580f532/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8190dbbeca15ebdc96e247bb91a06680a00a60089c25180495df59d4a11849af [2024-12-02 05:49:59,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 05:49:59,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 05:49:59,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 05:49:59,520 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 05:49:59,520 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 05:49:59,521 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d811ab49-828a-49ea-848c-43bf8580f532/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c [2024-12-02 05:50:02,231 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d811ab49-828a-49ea-848c-43bf8580f532/bin/uautomizer-verify-84ZbGMXZE1/data/d1836861e/2a7b92389ed1490588e7f9a9bc9cbf44/FLAG07737df46 [2024-12-02 05:50:02,482 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 05:50:02,482 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d811ab49-828a-49ea-848c-43bf8580f532/sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c [2024-12-02 05:50:02,498 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d811ab49-828a-49ea-848c-43bf8580f532/bin/uautomizer-verify-84ZbGMXZE1/data/d1836861e/2a7b92389ed1490588e7f9a9bc9cbf44/FLAG07737df46 [2024-12-02 05:50:02,778 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d811ab49-828a-49ea-848c-43bf8580f532/bin/uautomizer-verify-84ZbGMXZE1/data/d1836861e/2a7b92389ed1490588e7f9a9bc9cbf44 [2024-12-02 05:50:02,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 05:50:02,781 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 05:50:02,783 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 05:50:02,783 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 05:50:02,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 05:50:02,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:50:02" (1/1) ... [2024-12-02 05:50:02,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@161aeb13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:02, skipping insertion in model container [2024-12-02 05:50:02,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:50:02" (1/1) ... [2024-12-02 05:50:02,826 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 05:50:02,960 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_d811ab49-828a-49ea-848c-43bf8580f532/sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c[1545,1558] [2024-12-02 05:50:03,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:50:03,221 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 05:50:03,230 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2024-12-02 05:50:03,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [57] [2024-12-02 05:50:03,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [178] [2024-12-02 05:50:03,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [192] [2024-12-02 05:50:03,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [375] [2024-12-02 05:50:03,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [741] [2024-12-02 05:50:03,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1101] [2024-12-02 05:50:03,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2529] [2024-12-02 05:50:03,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2620] [2024-12-02 05:50:03,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2655] [2024-12-02 05:50:03,235 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_d811ab49-828a-49ea-848c-43bf8580f532/sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c[1545,1558] [2024-12-02 05:50:03,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:50:03,346 INFO L204 MainTranslator]: Completed translation [2024-12-02 05:50:03,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:03 WrapperNode [2024-12-02 05:50:03,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 05:50:03,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 05:50:03,348 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 05:50:03,348 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 05:50:03,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:03" (1/1) ... [2024-12-02 05:50:03,373 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:03" (1/1) ... [2024-12-02 05:50:03,404 INFO L138 Inliner]: procedures = 88, calls = 328, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 752 [2024-12-02 05:50:03,404 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 05:50:03,405 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 05:50:03,405 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 05:50:03,405 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 05:50:03,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:03" (1/1) ... [2024-12-02 05:50:03,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:03" (1/1) ... [2024-12-02 05:50:03,420 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:03" (1/1) ... [2024-12-02 05:50:03,445 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]. [2024-12-02 05:50:03,445 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:03" (1/1) ... [2024-12-02 05:50:03,446 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:03" (1/1) ... [2024-12-02 05:50:03,462 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:03" (1/1) ... [2024-12-02 05:50:03,464 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:03" (1/1) ... [2024-12-02 05:50:03,477 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:03" (1/1) ... [2024-12-02 05:50:03,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:03" (1/1) ... [2024-12-02 05:50:03,485 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:03" (1/1) ... [2024-12-02 05:50:03,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 05:50:03,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 05:50:03,495 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 05:50:03,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 05:50:03,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:03" (1/1) ... [2024-12-02 05:50:03,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:50:03,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d811ab49-828a-49ea-848c-43bf8580f532/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:50:03,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d811ab49-828a-49ea-848c-43bf8580f532/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 05:50:03,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d811ab49-828a-49ea-848c-43bf8580f532/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 05:50:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 05:50:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-12-02 05:50:03,565 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-12-02 05:50:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-12-02 05:50:03,565 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-12-02 05:50:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-12-02 05:50:03,565 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-12-02 05:50:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-12-02 05:50:03,566 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-12-02 05:50:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 05:50:03,566 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 05:50:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 05:50:03,566 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 05:50:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-12-02 05:50:03,566 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-12-02 05:50:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-12-02 05:50:03,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-12-02 05:50:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-12-02 05:50:03,567 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-12-02 05:50:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-12-02 05:50:03,567 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-12-02 05:50:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-12-02 05:50:03,567 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-12-02 05:50:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-12-02 05:50:03,567 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-12-02 05:50:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-12-02 05:50:03,567 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-12-02 05:50:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-12-02 05:50:03,567 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-12-02 05:50:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-12-02 05:50:03,567 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-12-02 05:50:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-12-02 05:50:03,568 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-12-02 05:50:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 05:50:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 05:50:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 05:50:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 05:50:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 05:50:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 05:50:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 05:50:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 05:50:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 05:50:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 05:50:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 05:50:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 05:50:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 05:50:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 05:50:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 05:50:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 05:50:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 05:50:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 05:50:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 05:50:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 05:50:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-12-02 05:50:03,569 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-12-02 05:50:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-12-02 05:50:03,569 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-12-02 05:50:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-12-02 05:50:03,569 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-12-02 05:50:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 05:50:03,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 05:50:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-12-02 05:50:03,569 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-12-02 05:50:03,730 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 05:50:03,733 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 05:50:04,774 INFO L? ?]: Removed 409 outVars from TransFormulas that were not future-live. [2024-12-02 05:50:04,774 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 05:50:04,796 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 05:50:04,796 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 05:50:04,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:50:04 BoogieIcfgContainer [2024-12-02 05:50:04,796 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 05:50:04,798 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 05:50:04,799 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 05:50:04,803 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 05:50:04,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:50:02" (1/3) ... [2024-12-02 05:50:04,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f943fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:50:04, skipping insertion in model container [2024-12-02 05:50:04,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:03" (2/3) ... [2024-12-02 05:50:04,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f943fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:50:04, skipping insertion in model container [2024-12-02 05:50:04,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:50:04" (3/3) ... [2024-12-02 05:50:04,806 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product01.cil.c [2024-12-02 05:50:04,817 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 05:50:04,819 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec2_product01.cil.c that has 21 procedures, 516 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 05:50:04,877 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 05:50:04,887 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;@7d11ad57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 05:50:04,887 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 05:50:04,892 INFO L276 IsEmpty]: Start isEmpty. Operand has 516 states, 408 states have (on average 1.7181372549019607) internal successors, (701), 429 states have internal predecessors, (701), 86 states have call successors, (86), 20 states have call predecessors, (86), 20 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 05:50:04,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-12-02 05:50:04,909 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:04,910 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:04,910 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:04,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:04,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1284840652, now seen corresponding path program 1 times [2024-12-02 05:50:04,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:04,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772171921] [2024-12-02 05:50:04,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:04,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:05,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:05,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:05,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772171921] [2024-12-02 05:50:05,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772171921] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:05,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:05,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:50:05,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696507444] [2024-12-02 05:50:05,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:05,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:50:05,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:05,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:50:05,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:05,392 INFO L87 Difference]: Start difference. First operand has 516 states, 408 states have (on average 1.7181372549019607) internal successors, (701), 429 states have internal predecessors, (701), 86 states have call successors, (86), 20 states have call predecessors, (86), 20 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:05,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:05,524 INFO L93 Difference]: Finished difference Result 1012 states and 1721 transitions. [2024-12-02 05:50:05,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:50:05,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2024-12-02 05:50:05,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:05,543 INFO L225 Difference]: With dead ends: 1012 [2024-12-02 05:50:05,543 INFO L226 Difference]: Without dead ends: 508 [2024-12-02 05:50:05,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:05,553 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 5 mSDsluCounter, 1700 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2552 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:05,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2552 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:05,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-12-02 05:50:05,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2024-12-02 05:50:05,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 402 states have (on average 1.7139303482587065) internal successors, (689), 421 states have internal predecessors, (689), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 05:50:05,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 856 transitions. [2024-12-02 05:50:05,632 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 856 transitions. Word has length 74 [2024-12-02 05:50:05,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:05,633 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 856 transitions. [2024-12-02 05:50:05,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:05,633 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 856 transitions. [2024-12-02 05:50:05,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-12-02 05:50:05,639 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:05,639 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:05,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 05:50:05,640 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:05,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:05,640 INFO L85 PathProgramCache]: Analyzing trace with hash -932241658, now seen corresponding path program 1 times [2024-12-02 05:50:05,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:05,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695980567] [2024-12-02 05:50:05,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:05,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:05,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:05,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:05,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695980567] [2024-12-02 05:50:05,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695980567] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:05,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:05,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:50:05,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045382471] [2024-12-02 05:50:05,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:05,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:50:05,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:05,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:50:05,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:05,850 INFO L87 Difference]: Start difference. First operand 508 states and 856 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:05,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:05,935 INFO L93 Difference]: Finished difference Result 998 states and 1689 transitions. [2024-12-02 05:50:05,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:50:05,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 76 [2024-12-02 05:50:05,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:05,941 INFO L225 Difference]: With dead ends: 998 [2024-12-02 05:50:05,942 INFO L226 Difference]: Without dead ends: 508 [2024-12-02 05:50:05,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:05,945 INFO L435 NwaCegarLoop]: 845 mSDtfsCounter, 4 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2531 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:05,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2531 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:05,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-12-02 05:50:05,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2024-12-02 05:50:05,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 402 states have (on average 1.7114427860696517) internal successors, (688), 421 states have internal predecessors, (688), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 05:50:05,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 855 transitions. [2024-12-02 05:50:05,976 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 855 transitions. Word has length 76 [2024-12-02 05:50:05,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:05,976 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 855 transitions. [2024-12-02 05:50:05,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:05,977 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 855 transitions. [2024-12-02 05:50:05,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-02 05:50:05,980 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:05,980 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:05,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 05:50:05,981 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:05,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:05,981 INFO L85 PathProgramCache]: Analyzing trace with hash 519819304, now seen corresponding path program 1 times [2024-12-02 05:50:05,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:05,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228404094] [2024-12-02 05:50:05,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:05,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:06,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:06,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:06,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228404094] [2024-12-02 05:50:06,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228404094] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:06,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:06,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:50:06,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667978665] [2024-12-02 05:50:06,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:06,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:50:06,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:06,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:50:06,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:06,148 INFO L87 Difference]: Start difference. First operand 508 states and 855 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:06,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:06,210 INFO L93 Difference]: Finished difference Result 998 states and 1688 transitions. [2024-12-02 05:50:06,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:50:06,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 77 [2024-12-02 05:50:06,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:06,216 INFO L225 Difference]: With dead ends: 998 [2024-12-02 05:50:06,216 INFO L226 Difference]: Without dead ends: 508 [2024-12-02 05:50:06,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:06,219 INFO L435 NwaCegarLoop]: 845 mSDtfsCounter, 3 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2531 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:06,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2531 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:06,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-12-02 05:50:06,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2024-12-02 05:50:06,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 402 states have (on average 1.708955223880597) internal successors, (687), 421 states have internal predecessors, (687), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 05:50:06,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 854 transitions. [2024-12-02 05:50:06,243 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 854 transitions. Word has length 77 [2024-12-02 05:50:06,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:06,243 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 854 transitions. [2024-12-02 05:50:06,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:06,244 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 854 transitions. [2024-12-02 05:50:06,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-02 05:50:06,246 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:06,247 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:06,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 05:50:06,247 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:06,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:06,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1749242954, now seen corresponding path program 1 times [2024-12-02 05:50:06,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:06,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868096103] [2024-12-02 05:50:06,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:06,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:06,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:06,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:06,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868096103] [2024-12-02 05:50:06,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868096103] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:06,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:06,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:50:06,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741874128] [2024-12-02 05:50:06,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:06,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:50:06,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:06,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:50:06,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:06,388 INFO L87 Difference]: Start difference. First operand 508 states and 854 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:06,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:06,440 INFO L93 Difference]: Finished difference Result 998 states and 1687 transitions. [2024-12-02 05:50:06,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:50:06,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2024-12-02 05:50:06,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:06,445 INFO L225 Difference]: With dead ends: 998 [2024-12-02 05:50:06,445 INFO L226 Difference]: Without dead ends: 508 [2024-12-02 05:50:06,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:06,448 INFO L435 NwaCegarLoop]: 845 mSDtfsCounter, 2 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2531 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:06,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2531 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:06,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-12-02 05:50:06,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2024-12-02 05:50:06,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 402 states have (on average 1.7064676616915422) internal successors, (686), 421 states have internal predecessors, (686), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 05:50:06,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 853 transitions. [2024-12-02 05:50:06,470 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 853 transitions. Word has length 78 [2024-12-02 05:50:06,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:06,470 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 853 transitions. [2024-12-02 05:50:06,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:06,471 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 853 transitions. [2024-12-02 05:50:06,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 05:50:06,473 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:06,473 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:06,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 05:50:06,474 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:06,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:06,474 INFO L85 PathProgramCache]: Analyzing trace with hash 371877228, now seen corresponding path program 1 times [2024-12-02 05:50:06,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:06,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767191497] [2024-12-02 05:50:06,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:06,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:06,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:06,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:06,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767191497] [2024-12-02 05:50:06,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767191497] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:06,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:06,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:50:06,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079166991] [2024-12-02 05:50:06,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:06,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:50:06,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:06,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:50:06,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:06,599 INFO L87 Difference]: Start difference. First operand 508 states and 853 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:06,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:06,648 INFO L93 Difference]: Finished difference Result 998 states and 1686 transitions. [2024-12-02 05:50:06,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:50:06,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 79 [2024-12-02 05:50:06,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:06,654 INFO L225 Difference]: With dead ends: 998 [2024-12-02 05:50:06,654 INFO L226 Difference]: Without dead ends: 508 [2024-12-02 05:50:06,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:06,657 INFO L435 NwaCegarLoop]: 845 mSDtfsCounter, 1 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2531 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:06,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2531 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:06,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-12-02 05:50:06,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2024-12-02 05:50:06,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 402 states have (on average 1.7039800995024876) internal successors, (685), 421 states have internal predecessors, (685), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 05:50:06,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 852 transitions. [2024-12-02 05:50:06,682 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 852 transitions. Word has length 79 [2024-12-02 05:50:06,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:06,682 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 852 transitions. [2024-12-02 05:50:06,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:06,682 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 852 transitions. [2024-12-02 05:50:06,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 05:50:06,685 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:06,685 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:06,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 05:50:06,685 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:06,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:06,686 INFO L85 PathProgramCache]: Analyzing trace with hash -211580530, now seen corresponding path program 1 times [2024-12-02 05:50:06,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:06,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427806769] [2024-12-02 05:50:06,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:06,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:06,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:06,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:06,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427806769] [2024-12-02 05:50:06,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427806769] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:06,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:06,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 05:50:06,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271405346] [2024-12-02 05:50:06,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:06,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 05:50:06,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:06,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 05:50:06,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:50:06,929 INFO L87 Difference]: Start difference. First operand 508 states and 852 transitions. Second operand has 9 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 05:50:07,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:07,038 INFO L93 Difference]: Finished difference Result 964 states and 1618 transitions. [2024-12-02 05:50:07,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 05:50:07,039 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 80 [2024-12-02 05:50:07,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:07,042 INFO L225 Difference]: With dead ends: 964 [2024-12-02 05:50:07,042 INFO L226 Difference]: Without dead ends: 523 [2024-12-02 05:50:07,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:50:07,044 INFO L435 NwaCegarLoop]: 840 mSDtfsCounter, 91 mSDsluCounter, 5797 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 6637 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:07,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 6637 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:50:07,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-12-02 05:50:07,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 521. [2024-12-02 05:50:07,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 412 states have (on average 1.6990291262135921) internal successors, (700), 433 states have internal predecessors, (700), 87 states have call successors, (87), 20 states have call predecessors, (87), 21 states have return successors, (84), 80 states have call predecessors, (84), 82 states have call successors, (84) [2024-12-02 05:50:07,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 871 transitions. [2024-12-02 05:50:07,062 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 871 transitions. Word has length 80 [2024-12-02 05:50:07,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:07,063 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 871 transitions. [2024-12-02 05:50:07,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 05:50:07,063 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 871 transitions. [2024-12-02 05:50:07,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 05:50:07,065 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:07,065 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:07,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 05:50:07,066 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:07,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:07,066 INFO L85 PathProgramCache]: Analyzing trace with hash -420278833, now seen corresponding path program 1 times [2024-12-02 05:50:07,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:07,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859644476] [2024-12-02 05:50:07,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:07,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:07,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:07,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:07,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859644476] [2024-12-02 05:50:07,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859644476] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:07,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:07,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:50:07,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265686349] [2024-12-02 05:50:07,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:07,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:50:07,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:07,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:50:07,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:07,134 INFO L87 Difference]: Start difference. First operand 521 states and 871 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:07,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:07,191 INFO L93 Difference]: Finished difference Result 1016 states and 1712 transitions. [2024-12-02 05:50:07,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:50:07,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 80 [2024-12-02 05:50:07,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:07,195 INFO L225 Difference]: With dead ends: 1016 [2024-12-02 05:50:07,195 INFO L226 Difference]: Without dead ends: 502 [2024-12-02 05:50:07,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:07,196 INFO L435 NwaCegarLoop]: 846 mSDtfsCounter, 0 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2533 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:07,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2533 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:07,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-12-02 05:50:07,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 502. [2024-12-02 05:50:07,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 396 states have (on average 1.6944444444444444) internal successors, (671), 415 states have internal predecessors, (671), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 05:50:07,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 838 transitions. [2024-12-02 05:50:07,214 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 838 transitions. Word has length 80 [2024-12-02 05:50:07,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:07,215 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 838 transitions. [2024-12-02 05:50:07,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:07,215 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 838 transitions. [2024-12-02 05:50:07,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 05:50:07,217 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:07,217 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:07,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 05:50:07,217 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:07,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:07,218 INFO L85 PathProgramCache]: Analyzing trace with hash -917295894, now seen corresponding path program 1 times [2024-12-02 05:50:07,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:07,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644246133] [2024-12-02 05:50:07,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:07,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:07,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:07,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:07,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644246133] [2024-12-02 05:50:07,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644246133] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:07,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:07,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 05:50:07,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802143256] [2024-12-02 05:50:07,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:07,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:50:07,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:07,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:50:07,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:50:07,363 INFO L87 Difference]: Start difference. First operand 502 states and 838 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:07,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:07,548 INFO L93 Difference]: Finished difference Result 961 states and 1610 transitions. [2024-12-02 05:50:07,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:50:07,548 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 81 [2024-12-02 05:50:07,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:07,552 INFO L225 Difference]: With dead ends: 961 [2024-12-02 05:50:07,552 INFO L226 Difference]: Without dead ends: 511 [2024-12-02 05:50:07,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:07,554 INFO L435 NwaCegarLoop]: 795 mSDtfsCounter, 55 mSDsluCounter, 3151 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 3946 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:07,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 3946 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:50:07,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-12-02 05:50:07,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 502. [2024-12-02 05:50:07,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 396 states have (on average 1.6843434343434343) internal successors, (667), 415 states have internal predecessors, (667), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 05:50:07,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 834 transitions. [2024-12-02 05:50:07,569 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 834 transitions. Word has length 81 [2024-12-02 05:50:07,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:07,569 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 834 transitions. [2024-12-02 05:50:07,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:07,569 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 834 transitions. [2024-12-02 05:50:07,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 05:50:07,571 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:07,571 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:07,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 05:50:07,571 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:07,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:07,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1408693, now seen corresponding path program 1 times [2024-12-02 05:50:07,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:07,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867449925] [2024-12-02 05:50:07,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:07,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:07,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:07,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:07,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867449925] [2024-12-02 05:50:07,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867449925] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:07,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:07,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 05:50:07,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069855593] [2024-12-02 05:50:07,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:07,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:50:07,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:07,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:50:07,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:50:07,690 INFO L87 Difference]: Start difference. First operand 502 states and 834 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:07,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:07,884 INFO L93 Difference]: Finished difference Result 961 states and 1606 transitions. [2024-12-02 05:50:07,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:50:07,885 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2024-12-02 05:50:07,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:07,890 INFO L225 Difference]: With dead ends: 961 [2024-12-02 05:50:07,890 INFO L226 Difference]: Without dead ends: 511 [2024-12-02 05:50:07,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:07,893 INFO L435 NwaCegarLoop]: 795 mSDtfsCounter, 54 mSDsluCounter, 3151 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3946 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:07,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 3946 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:50:07,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-12-02 05:50:07,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 502. [2024-12-02 05:50:07,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 396 states have (on average 1.6742424242424243) internal successors, (663), 415 states have internal predecessors, (663), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 05:50:07,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 830 transitions. [2024-12-02 05:50:07,920 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 830 transitions. Word has length 82 [2024-12-02 05:50:07,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:07,920 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 830 transitions. [2024-12-02 05:50:07,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:07,921 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 830 transitions. [2024-12-02 05:50:07,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 05:50:07,924 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:07,924 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:07,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 05:50:07,924 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:07,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:07,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1571989659, now seen corresponding path program 1 times [2024-12-02 05:50:07,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:07,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987432680] [2024-12-02 05:50:07,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:07,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:08,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:08,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:08,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987432680] [2024-12-02 05:50:08,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987432680] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:08,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:08,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 05:50:08,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318252190] [2024-12-02 05:50:08,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:08,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:50:08,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:08,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:50:08,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:50:08,087 INFO L87 Difference]: Start difference. First operand 502 states and 830 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:08,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:08,277 INFO L93 Difference]: Finished difference Result 961 states and 1602 transitions. [2024-12-02 05:50:08,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:50:08,278 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2024-12-02 05:50:08,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:08,283 INFO L225 Difference]: With dead ends: 961 [2024-12-02 05:50:08,283 INFO L226 Difference]: Without dead ends: 511 [2024-12-02 05:50:08,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:08,287 INFO L435 NwaCegarLoop]: 794 mSDtfsCounter, 53 mSDsluCounter, 3134 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3928 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:08,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3928 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:50:08,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-12-02 05:50:08,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 502. [2024-12-02 05:50:08,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 396 states have (on average 1.6641414141414141) internal successors, (659), 415 states have internal predecessors, (659), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 05:50:08,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 826 transitions. [2024-12-02 05:50:08,313 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 826 transitions. Word has length 83 [2024-12-02 05:50:08,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:08,313 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 826 transitions. [2024-12-02 05:50:08,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:08,313 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 826 transitions. [2024-12-02 05:50:08,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 05:50:08,316 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:08,317 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:08,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 05:50:08,317 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:08,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:08,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1843705115, now seen corresponding path program 1 times [2024-12-02 05:50:08,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:08,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614075430] [2024-12-02 05:50:08,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:08,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:08,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:08,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:08,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614075430] [2024-12-02 05:50:08,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614075430] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:08,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:08,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 05:50:08,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252817527] [2024-12-02 05:50:08,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:08,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 05:50:08,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:08,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 05:50:08,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:08,480 INFO L87 Difference]: Start difference. First operand 502 states and 826 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 05:50:08,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:08,556 INFO L93 Difference]: Finished difference Result 952 states and 1584 transitions. [2024-12-02 05:50:08,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:50:08,557 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 83 [2024-12-02 05:50:08,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:08,562 INFO L225 Difference]: With dead ends: 952 [2024-12-02 05:50:08,562 INFO L226 Difference]: Without dead ends: 481 [2024-12-02 05:50:08,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:50:08,564 INFO L435 NwaCegarLoop]: 815 mSDtfsCounter, 84 mSDsluCounter, 4002 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 4817 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:08,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 4817 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:08,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-12-02 05:50:08,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2024-12-02 05:50:08,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 375 states have (on average 1.6666666666666667) internal successors, (625), 394 states have internal predecessors, (625), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 05:50:08,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 792 transitions. [2024-12-02 05:50:08,586 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 792 transitions. Word has length 83 [2024-12-02 05:50:08,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:08,586 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 792 transitions. [2024-12-02 05:50:08,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 05:50:08,586 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 792 transitions. [2024-12-02 05:50:08,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 05:50:08,588 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:08,588 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:08,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 05:50:08,589 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:08,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:08,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1381294822, now seen corresponding path program 1 times [2024-12-02 05:50:08,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:08,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568963570] [2024-12-02 05:50:08,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:08,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:08,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:08,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:08,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568963570] [2024-12-02 05:50:08,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568963570] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:08,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:08,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 05:50:08,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973110307] [2024-12-02 05:50:08,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:08,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:50:08,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:08,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:50:08,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:50:08,731 INFO L87 Difference]: Start difference. First operand 481 states and 792 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:08,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:08,824 INFO L93 Difference]: Finished difference Result 931 states and 1550 transitions. [2024-12-02 05:50:08,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:50:08,825 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2024-12-02 05:50:08,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:08,830 INFO L225 Difference]: With dead ends: 931 [2024-12-02 05:50:08,830 INFO L226 Difference]: Without dead ends: 481 [2024-12-02 05:50:08,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:08,833 INFO L435 NwaCegarLoop]: 775 mSDtfsCounter, 17 mSDsluCounter, 3091 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 3866 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:08,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 3866 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:08,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-12-02 05:50:08,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2024-12-02 05:50:08,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 375 states have (on average 1.664) internal successors, (624), 394 states have internal predecessors, (624), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 05:50:08,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 791 transitions. [2024-12-02 05:50:08,856 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 791 transitions. Word has length 84 [2024-12-02 05:50:08,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:08,856 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 791 transitions. [2024-12-02 05:50:08,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:08,856 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 791 transitions. [2024-12-02 05:50:08,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 05:50:08,859 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:08,859 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:08,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 05:50:08,859 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:08,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:08,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1454479904, now seen corresponding path program 1 times [2024-12-02 05:50:08,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:08,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415653313] [2024-12-02 05:50:08,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:08,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:09,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:09,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:09,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415653313] [2024-12-02 05:50:09,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415653313] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:09,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:09,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 05:50:09,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061606619] [2024-12-02 05:50:09,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:09,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:50:09,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:09,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:50:09,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:50:09,021 INFO L87 Difference]: Start difference. First operand 481 states and 791 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:09,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:09,093 INFO L93 Difference]: Finished difference Result 931 states and 1549 transitions. [2024-12-02 05:50:09,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:50:09,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 85 [2024-12-02 05:50:09,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:09,098 INFO L225 Difference]: With dead ends: 931 [2024-12-02 05:50:09,098 INFO L226 Difference]: Without dead ends: 481 [2024-12-02 05:50:09,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:09,101 INFO L435 NwaCegarLoop]: 775 mSDtfsCounter, 16 mSDsluCounter, 3091 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 3866 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:09,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 3866 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:09,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-12-02 05:50:09,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2024-12-02 05:50:09,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 375 states have (on average 1.6613333333333333) internal successors, (623), 394 states have internal predecessors, (623), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 05:50:09,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 790 transitions. [2024-12-02 05:50:09,121 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 790 transitions. Word has length 85 [2024-12-02 05:50:09,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:09,121 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 790 transitions. [2024-12-02 05:50:09,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 05:50:09,122 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 790 transitions. [2024-12-02 05:50:09,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 05:50:09,124 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:09,124 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:09,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 05:50:09,124 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:09,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:09,125 INFO L85 PathProgramCache]: Analyzing trace with hash 932503681, now seen corresponding path program 1 times [2024-12-02 05:50:09,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:09,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999216790] [2024-12-02 05:50:09,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:09,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:09,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:09,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:09,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999216790] [2024-12-02 05:50:09,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999216790] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:09,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:09,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 05:50:09,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090461729] [2024-12-02 05:50:09,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:09,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 05:50:09,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:09,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 05:50:09,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:50:09,384 INFO L87 Difference]: Start difference. First operand 481 states and 790 transitions. Second operand has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 05:50:09,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:09,500 INFO L93 Difference]: Finished difference Result 925 states and 1537 transitions. [2024-12-02 05:50:09,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 05:50:09,501 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 86 [2024-12-02 05:50:09,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:09,506 INFO L225 Difference]: With dead ends: 925 [2024-12-02 05:50:09,506 INFO L226 Difference]: Without dead ends: 481 [2024-12-02 05:50:09,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:50:09,509 INFO L435 NwaCegarLoop]: 774 mSDtfsCounter, 6 mSDsluCounter, 6170 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6944 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:09,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 6944 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:50:09,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-12-02 05:50:09,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2024-12-02 05:50:09,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 375 states have (on average 1.6586666666666667) internal successors, (622), 394 states have internal predecessors, (622), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 05:50:09,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 789 transitions. [2024-12-02 05:50:09,531 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 789 transitions. Word has length 86 [2024-12-02 05:50:09,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:09,531 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 789 transitions. [2024-12-02 05:50:09,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 05:50:09,532 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 789 transitions. [2024-12-02 05:50:09,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 05:50:09,534 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:09,535 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:09,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 05:50:09,535 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:09,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:09,535 INFO L85 PathProgramCache]: Analyzing trace with hash 59508107, now seen corresponding path program 1 times [2024-12-02 05:50:09,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:09,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635679184] [2024-12-02 05:50:09,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:09,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:09,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:09,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:09,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635679184] [2024-12-02 05:50:09,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635679184] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:09,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:09,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:50:09,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919756583] [2024-12-02 05:50:09,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:09,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:50:09,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:09,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:50:09,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:50:09,795 INFO L87 Difference]: Start difference. First operand 481 states and 789 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 05:50:11,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:11,445 INFO L93 Difference]: Finished difference Result 921 states and 1549 transitions. [2024-12-02 05:50:11,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 05:50:11,446 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2024-12-02 05:50:11,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:11,450 INFO L225 Difference]: With dead ends: 921 [2024-12-02 05:50:11,450 INFO L226 Difference]: Without dead ends: 485 [2024-12-02 05:50:11,452 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 05:50:11,452 INFO L435 NwaCegarLoop]: 375 mSDtfsCounter, 1210 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 2728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:11,452 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 1589 Invalid, 2728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 05:50:11,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-12-02 05:50:11,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 485. [2024-12-02 05:50:11,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 378 states have (on average 1.6534391534391535) internal successors, (625), 397 states have internal predecessors, (625), 86 states have call successors, (86), 20 states have call predecessors, (86), 20 states have return successors, (97), 80 states have call predecessors, (97), 81 states have call successors, (97) [2024-12-02 05:50:11,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 808 transitions. [2024-12-02 05:50:11,474 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 808 transitions. Word has length 87 [2024-12-02 05:50:11,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:11,474 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 808 transitions. [2024-12-02 05:50:11,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 05:50:11,474 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 808 transitions. [2024-12-02 05:50:11,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-12-02 05:50:11,476 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:11,476 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:11,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 05:50:11,477 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:11,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:11,477 INFO L85 PathProgramCache]: Analyzing trace with hash 593433390, now seen corresponding path program 1 times [2024-12-02 05:50:11,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:11,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330515802] [2024-12-02 05:50:11,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:11,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:11,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:11,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:11,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330515802] [2024-12-02 05:50:11,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330515802] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:11,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:11,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 05:50:11,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687608454] [2024-12-02 05:50:11,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:11,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 05:50:11,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:11,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 05:50:11,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:11,640 INFO L87 Difference]: Start difference. First operand 485 states and 808 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 05:50:14,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:14,710 INFO L93 Difference]: Finished difference Result 1727 states and 2974 transitions. [2024-12-02 05:50:14,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 05:50:14,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 88 [2024-12-02 05:50:14,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:14,721 INFO L225 Difference]: With dead ends: 1727 [2024-12-02 05:50:14,721 INFO L226 Difference]: Without dead ends: 1287 [2024-12-02 05:50:14,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-12-02 05:50:14,724 INFO L435 NwaCegarLoop]: 603 mSDtfsCounter, 2171 mSDsluCounter, 1977 mSDsCounter, 0 mSdLazyCounter, 4314 mSolverCounterSat, 564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2238 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 4878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 4314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:14,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2238 Valid, 2580 Invalid, 4878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 4314 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-12-02 05:50:14,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2024-12-02 05:50:14,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1230. [2024-12-02 05:50:14,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 955 states have (on average 1.668062827225131) internal successors, (1593), 1003 states have internal predecessors, (1593), 223 states have call successors, (223), 51 states have call predecessors, (223), 51 states have return successors, (238), 212 states have call predecessors, (238), 218 states have call successors, (238) [2024-12-02 05:50:14,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 2054 transitions. [2024-12-02 05:50:14,801 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 2054 transitions. Word has length 88 [2024-12-02 05:50:14,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:14,802 INFO L471 AbstractCegarLoop]: Abstraction has 1230 states and 2054 transitions. [2024-12-02 05:50:14,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 05:50:14,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 2054 transitions. [2024-12-02 05:50:14,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 05:50:14,804 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:14,804 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:14,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 05:50:14,804 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:14,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:14,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1008847826, now seen corresponding path program 1 times [2024-12-02 05:50:14,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:14,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675852925] [2024-12-02 05:50:14,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:14,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:14,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:14,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:14,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675852925] [2024-12-02 05:50:14,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675852925] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:14,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:14,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 05:50:14,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738007866] [2024-12-02 05:50:14,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:14,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 05:50:14,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:14,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 05:50:14,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:14,995 INFO L87 Difference]: Start difference. First operand 1230 states and 2054 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 05:50:17,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:17,846 INFO L93 Difference]: Finished difference Result 5354 states and 9164 transitions. [2024-12-02 05:50:17,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 05:50:17,846 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 90 [2024-12-02 05:50:17,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:17,871 INFO L225 Difference]: With dead ends: 5354 [2024-12-02 05:50:17,871 INFO L226 Difference]: Without dead ends: 4169 [2024-12-02 05:50:17,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-12-02 05:50:17,878 INFO L435 NwaCegarLoop]: 631 mSDtfsCounter, 2708 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 4876 mSolverCounterSat, 630 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2813 SdHoareTripleChecker+Valid, 2308 SdHoareTripleChecker+Invalid, 5506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 630 IncrementalHoareTripleChecker+Valid, 4876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:17,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2813 Valid, 2308 Invalid, 5506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [630 Valid, 4876 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 05:50:17,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4169 states. [2024-12-02 05:50:18,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4169 to 3885. [2024-12-02 05:50:18,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3885 states, 2920 states have (on average 1.6722602739726027) internal successors, (4883), 3096 states have internal predecessors, (4883), 817 states have call successors, (817), 137 states have call predecessors, (817), 147 states have return successors, (957), 792 states have call predecessors, (957), 812 states have call successors, (957) [2024-12-02 05:50:18,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3885 states to 3885 states and 6657 transitions. [2024-12-02 05:50:18,141 INFO L78 Accepts]: Start accepts. Automaton has 3885 states and 6657 transitions. Word has length 90 [2024-12-02 05:50:18,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:18,142 INFO L471 AbstractCegarLoop]: Abstraction has 3885 states and 6657 transitions. [2024-12-02 05:50:18,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 05:50:18,142 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 6657 transitions. [2024-12-02 05:50:18,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 05:50:18,144 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:18,144 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:18,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 05:50:18,144 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:18,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:18,145 INFO L85 PathProgramCache]: Analyzing trace with hash -20511472, now seen corresponding path program 1 times [2024-12-02 05:50:18,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:18,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959816141] [2024-12-02 05:50:18,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:18,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:18,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:18,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:18,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959816141] [2024-12-02 05:50:18,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959816141] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:18,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:18,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 05:50:18,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894228691] [2024-12-02 05:50:18,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:18,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 05:50:18,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:18,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 05:50:18,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:18,370 INFO L87 Difference]: Start difference. First operand 3885 states and 6657 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 05:50:20,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:20,720 INFO L93 Difference]: Finished difference Result 10676 states and 18445 transitions. [2024-12-02 05:50:20,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 05:50:20,720 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 90 [2024-12-02 05:50:20,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:20,775 INFO L225 Difference]: With dead ends: 10676 [2024-12-02 05:50:20,775 INFO L226 Difference]: Without dead ends: 7830 [2024-12-02 05:50:20,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-12-02 05:50:20,792 INFO L435 NwaCegarLoop]: 347 mSDtfsCounter, 2239 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 3353 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 3828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 3353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:20,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 1700 Invalid, 3828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 3353 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 05:50:20,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7830 states. [2024-12-02 05:50:21,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7830 to 7321. [2024-12-02 05:50:21,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 5533 states have (on average 1.6696186517260077) internal successors, (9238), 5863 states have internal predecessors, (9238), 1485 states have call successors, (1485), 254 states have call predecessors, (1485), 302 states have return successors, (1868), 1439 states have call predecessors, (1868), 1480 states have call successors, (1868) [2024-12-02 05:50:21,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 12591 transitions. [2024-12-02 05:50:21,327 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 12591 transitions. Word has length 90 [2024-12-02 05:50:21,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:21,328 INFO L471 AbstractCegarLoop]: Abstraction has 7321 states and 12591 transitions. [2024-12-02 05:50:21,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 05:50:21,328 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 12591 transitions. [2024-12-02 05:50:21,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 05:50:21,330 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:21,330 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:21,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 05:50:21,331 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:21,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:21,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1413241591, now seen corresponding path program 1 times [2024-12-02 05:50:21,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:21,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31858630] [2024-12-02 05:50:21,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:21,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:21,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:21,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:21,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31858630] [2024-12-02 05:50:21,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31858630] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:21,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:21,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:50:21,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766442644] [2024-12-02 05:50:21,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:21,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:50:21,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:21,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:50:21,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:50:21,503 INFO L87 Difference]: Start difference. First operand 7321 states and 12591 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 05:50:21,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:21,951 INFO L93 Difference]: Finished difference Result 13525 states and 23331 transitions. [2024-12-02 05:50:21,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:50:21,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 95 [2024-12-02 05:50:21,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:22,020 INFO L225 Difference]: With dead ends: 13525 [2024-12-02 05:50:22,020 INFO L226 Difference]: Without dead ends: 7408 [2024-12-02 05:50:22,054 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:50:22,054 INFO L435 NwaCegarLoop]: 787 mSDtfsCounter, 0 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:22,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3118 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:22,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7408 states. [2024-12-02 05:50:22,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7408 to 7394. [2024-12-02 05:50:22,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7394 states, 5589 states have (on average 1.6623725174449813) internal successors, (9291), 5918 states have internal predecessors, (9291), 1482 states have call successors, (1482), 254 states have call predecessors, (1482), 322 states have return successors, (1931), 1457 states have call predecessors, (1931), 1477 states have call successors, (1931) [2024-12-02 05:50:22,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7394 states to 7394 states and 12704 transitions. [2024-12-02 05:50:22,663 INFO L78 Accepts]: Start accepts. Automaton has 7394 states and 12704 transitions. Word has length 95 [2024-12-02 05:50:22,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:22,663 INFO L471 AbstractCegarLoop]: Abstraction has 7394 states and 12704 transitions. [2024-12-02 05:50:22,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 05:50:22,665 INFO L276 IsEmpty]: Start isEmpty. Operand 7394 states and 12704 transitions. [2024-12-02 05:50:22,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 05:50:22,667 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:22,668 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:22,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 05:50:22,668 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:22,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:22,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1651334476, now seen corresponding path program 1 times [2024-12-02 05:50:22,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:22,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484723820] [2024-12-02 05:50:22,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:22,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:22,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:22,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:22,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484723820] [2024-12-02 05:50:22,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484723820] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:22,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:22,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 05:50:22,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771204168] [2024-12-02 05:50:22,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:22,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:50:22,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:22,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:50:22,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:50:22,825 INFO L87 Difference]: Start difference. First operand 7394 states and 12704 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-12-02 05:50:23,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:23,294 INFO L93 Difference]: Finished difference Result 14751 states and 25804 transitions. [2024-12-02 05:50:23,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 05:50:23,294 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 102 [2024-12-02 05:50:23,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:23,335 INFO L225 Difference]: With dead ends: 14751 [2024-12-02 05:50:23,335 INFO L226 Difference]: Without dead ends: 7542 [2024-12-02 05:50:23,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:23,355 INFO L435 NwaCegarLoop]: 830 mSDtfsCounter, 224 mSDsluCounter, 3065 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 3895 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:23,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 3895 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:50:23,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7542 states. [2024-12-02 05:50:23,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7542 to 7418. [2024-12-02 05:50:23,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7418 states, 5610 states have (on average 1.6385026737967914) internal successors, (9192), 5942 states have internal predecessors, (9192), 1482 states have call successors, (1482), 254 states have call predecessors, (1482), 325 states have return successors, (1943), 1457 states have call predecessors, (1943), 1477 states have call successors, (1943) [2024-12-02 05:50:23,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7418 states to 7418 states and 12617 transitions. [2024-12-02 05:50:23,653 INFO L78 Accepts]: Start accepts. Automaton has 7418 states and 12617 transitions. Word has length 102 [2024-12-02 05:50:23,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:23,653 INFO L471 AbstractCegarLoop]: Abstraction has 7418 states and 12617 transitions. [2024-12-02 05:50:23,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-12-02 05:50:23,654 INFO L276 IsEmpty]: Start isEmpty. Operand 7418 states and 12617 transitions. [2024-12-02 05:50:23,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 05:50:23,656 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:23,656 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:23,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 05:50:23,656 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:23,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:23,657 INFO L85 PathProgramCache]: Analyzing trace with hash 2100562478, now seen corresponding path program 1 times [2024-12-02 05:50:23,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:23,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745378423] [2024-12-02 05:50:23,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:23,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:23,778 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 05:50:23,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:23,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745378423] [2024-12-02 05:50:23,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745378423] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:23,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:23,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 05:50:23,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955381157] [2024-12-02 05:50:23,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:23,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 05:50:23,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:23,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 05:50:23,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:23,779 INFO L87 Difference]: Start difference. First operand 7418 states and 12617 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 05:50:25,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:25,958 INFO L93 Difference]: Finished difference Result 14356 states and 24471 transitions. [2024-12-02 05:50:25,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 05:50:25,959 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 107 [2024-12-02 05:50:25,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:26,002 INFO L225 Difference]: With dead ends: 14356 [2024-12-02 05:50:26,002 INFO L226 Difference]: Without dead ends: 8158 [2024-12-02 05:50:26,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-12-02 05:50:26,025 INFO L435 NwaCegarLoop]: 369 mSDtfsCounter, 1961 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 2856 mSolverCounterSat, 448 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 3304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 448 IncrementalHoareTripleChecker+Valid, 2856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:26,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 1638 Invalid, 3304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [448 Valid, 2856 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 05:50:26,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8158 states. [2024-12-02 05:50:26,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8158 to 7653. [2024-12-02 05:50:26,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7653 states, 5785 states have (on average 1.6267934312878134) internal successors, (9411), 6135 states have internal predecessors, (9411), 1502 states have call successors, (1502), 279 states have call predecessors, (1502), 365 states have return successors, (2035), 1475 states have call predecessors, (2035), 1497 states have call successors, (2035) [2024-12-02 05:50:26,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7653 states to 7653 states and 12948 transitions. [2024-12-02 05:50:26,440 INFO L78 Accepts]: Start accepts. Automaton has 7653 states and 12948 transitions. Word has length 107 [2024-12-02 05:50:26,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:26,440 INFO L471 AbstractCegarLoop]: Abstraction has 7653 states and 12948 transitions. [2024-12-02 05:50:26,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 05:50:26,440 INFO L276 IsEmpty]: Start isEmpty. Operand 7653 states and 12948 transitions. [2024-12-02 05:50:26,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 05:50:26,443 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:26,443 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:26,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 05:50:26,443 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:26,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:26,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1769098513, now seen corresponding path program 1 times [2024-12-02 05:50:26,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:26,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32310247] [2024-12-02 05:50:26,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:26,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:26,562 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 05:50:26,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:26,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32310247] [2024-12-02 05:50:26,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32310247] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:26,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:26,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:50:26,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378899030] [2024-12-02 05:50:26,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:26,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:50:26,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:26,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:50:26,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:50:26,563 INFO L87 Difference]: Start difference. First operand 7653 states and 12948 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:50:27,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:27,166 INFO L93 Difference]: Finished difference Result 17321 states and 29464 transitions. [2024-12-02 05:50:27,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:50:27,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2024-12-02 05:50:27,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:27,207 INFO L225 Difference]: With dead ends: 17321 [2024-12-02 05:50:27,207 INFO L226 Difference]: Without dead ends: 10888 [2024-12-02 05:50:27,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:50:27,221 INFO L435 NwaCegarLoop]: 1260 mSDtfsCounter, 720 mSDsluCounter, 3274 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 4534 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:27,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 4534 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:27,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10888 states. [2024-12-02 05:50:27,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10888 to 10214. [2024-12-02 05:50:27,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10214 states, 7729 states have (on average 1.637469271574589) internal successors, (12656), 8182 states have internal predecessors, (12656), 2023 states have call successors, (2023), 360 states have call predecessors, (2023), 461 states have return successors, (2676), 2003 states have call predecessors, (2676), 2018 states have call successors, (2676) [2024-12-02 05:50:27,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10214 states to 10214 states and 17355 transitions. [2024-12-02 05:50:27,653 INFO L78 Accepts]: Start accepts. Automaton has 10214 states and 17355 transitions. Word has length 112 [2024-12-02 05:50:27,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:27,653 INFO L471 AbstractCegarLoop]: Abstraction has 10214 states and 17355 transitions. [2024-12-02 05:50:27,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:50:27,654 INFO L276 IsEmpty]: Start isEmpty. Operand 10214 states and 17355 transitions. [2024-12-02 05:50:27,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 05:50:27,655 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:27,656 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:27,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 05:50:27,656 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:27,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:27,656 INFO L85 PathProgramCache]: Analyzing trace with hash 321017363, now seen corresponding path program 1 times [2024-12-02 05:50:27,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:27,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117526193] [2024-12-02 05:50:27,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:27,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:27,853 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 05:50:27,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:27,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117526193] [2024-12-02 05:50:27,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117526193] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:27,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:27,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 05:50:27,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018517600] [2024-12-02 05:50:27,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:27,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 05:50:27,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:27,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 05:50:27,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:50:27,855 INFO L87 Difference]: Start difference. First operand 10214 states and 17355 transitions. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 5 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 05:50:31,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:31,059 INFO L93 Difference]: Finished difference Result 22316 states and 37639 transitions. [2024-12-02 05:50:31,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 05:50:31,059 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 5 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 114 [2024-12-02 05:50:31,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:31,131 INFO L225 Difference]: With dead ends: 22316 [2024-12-02 05:50:31,132 INFO L226 Difference]: Without dead ends: 13141 [2024-12-02 05:50:31,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2024-12-02 05:50:31,163 INFO L435 NwaCegarLoop]: 509 mSDtfsCounter, 2632 mSDsluCounter, 2600 mSDsCounter, 0 mSdLazyCounter, 5796 mSolverCounterSat, 609 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2715 SdHoareTripleChecker+Valid, 3109 SdHoareTripleChecker+Invalid, 6405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 609 IncrementalHoareTripleChecker+Valid, 5796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:31,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2715 Valid, 3109 Invalid, 6405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [609 Valid, 5796 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 05:50:31,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13141 states. [2024-12-02 05:50:31,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13141 to 11951. [2024-12-02 05:50:31,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11951 states, 9101 states have (on average 1.6164157784858806) internal successors, (14711), 9619 states have internal predecessors, (14711), 2251 states have call successors, (2251), 449 states have call predecessors, (2251), 598 states have return successors, (3012), 2207 states have call predecessors, (3012), 2246 states have call successors, (3012) [2024-12-02 05:50:31,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11951 states to 11951 states and 19974 transitions. [2024-12-02 05:50:31,746 INFO L78 Accepts]: Start accepts. Automaton has 11951 states and 19974 transitions. Word has length 114 [2024-12-02 05:50:31,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:31,746 INFO L471 AbstractCegarLoop]: Abstraction has 11951 states and 19974 transitions. [2024-12-02 05:50:31,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 5 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 05:50:31,746 INFO L276 IsEmpty]: Start isEmpty. Operand 11951 states and 19974 transitions. [2024-12-02 05:50:31,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 05:50:31,748 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:31,748 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:31,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 05:50:31,748 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:31,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:31,749 INFO L85 PathProgramCache]: Analyzing trace with hash -127679276, now seen corresponding path program 1 times [2024-12-02 05:50:31,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:31,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517550919] [2024-12-02 05:50:31,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:31,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:31,944 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 05:50:31,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:31,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517550919] [2024-12-02 05:50:31,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517550919] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:31,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:31,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 05:50:31,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216426358] [2024-12-02 05:50:31,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:31,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:50:31,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:31,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:50:31,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:50:31,946 INFO L87 Difference]: Start difference. First operand 11951 states and 19974 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 05:50:32,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:32,696 INFO L93 Difference]: Finished difference Result 12079 states and 20200 transitions. [2024-12-02 05:50:32,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:50:32,697 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-12-02 05:50:32,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:32,765 INFO L225 Difference]: With dead ends: 12079 [2024-12-02 05:50:32,765 INFO L226 Difference]: Without dead ends: 12064 [2024-12-02 05:50:32,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:50:32,775 INFO L435 NwaCegarLoop]: 769 mSDtfsCounter, 850 mSDsluCounter, 1986 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:32,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 2755 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 05:50:32,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12064 states. [2024-12-02 05:50:33,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12064 to 11959. [2024-12-02 05:50:33,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11959 states, 9109 states have (on average 1.6158744099242508) internal successors, (14719), 9627 states have internal predecessors, (14719), 2251 states have call successors, (2251), 449 states have call predecessors, (2251), 598 states have return successors, (3012), 2207 states have call predecessors, (3012), 2246 states have call successors, (3012) [2024-12-02 05:50:33,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11959 states to 11959 states and 19982 transitions. [2024-12-02 05:50:33,314 INFO L78 Accepts]: Start accepts. Automaton has 11959 states and 19982 transitions. Word has length 114 [2024-12-02 05:50:33,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:33,314 INFO L471 AbstractCegarLoop]: Abstraction has 11959 states and 19982 transitions. [2024-12-02 05:50:33,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 05:50:33,314 INFO L276 IsEmpty]: Start isEmpty. Operand 11959 states and 19982 transitions. [2024-12-02 05:50:33,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 05:50:33,316 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:33,316 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:33,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 05:50:33,316 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:33,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:33,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1728617462, now seen corresponding path program 1 times [2024-12-02 05:50:33,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:33,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94196080] [2024-12-02 05:50:33,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:33,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:33,461 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 05:50:33,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:33,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94196080] [2024-12-02 05:50:33,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94196080] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:33,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:33,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 05:50:33,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89814272] [2024-12-02 05:50:33,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:33,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 05:50:33,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:33,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 05:50:33,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:33,463 INFO L87 Difference]: Start difference. First operand 11959 states and 19982 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 05:50:33,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:33,846 INFO L93 Difference]: Finished difference Result 11974 states and 20000 transitions. [2024-12-02 05:50:33,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 05:50:33,846 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-12-02 05:50:33,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:33,968 INFO L225 Difference]: With dead ends: 11974 [2024-12-02 05:50:33,968 INFO L226 Difference]: Without dead ends: 11959 [2024-12-02 05:50:33,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:33,974 INFO L435 NwaCegarLoop]: 774 mSDtfsCounter, 0 mSDsluCounter, 3864 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4638 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:33,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4638 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:33,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11959 states. [2024-12-02 05:50:34,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11959 to 11959. [2024-12-02 05:50:34,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11959 states, 9109 states have (on average 1.614996157646284) internal successors, (14711), 9627 states have internal predecessors, (14711), 2251 states have call successors, (2251), 449 states have call predecessors, (2251), 598 states have return successors, (3012), 2207 states have call predecessors, (3012), 2246 states have call successors, (3012) [2024-12-02 05:50:34,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11959 states to 11959 states and 19974 transitions. [2024-12-02 05:50:34,526 INFO L78 Accepts]: Start accepts. Automaton has 11959 states and 19974 transitions. Word has length 118 [2024-12-02 05:50:34,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:34,526 INFO L471 AbstractCegarLoop]: Abstraction has 11959 states and 19974 transitions. [2024-12-02 05:50:34,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 05:50:34,526 INFO L276 IsEmpty]: Start isEmpty. Operand 11959 states and 19974 transitions. [2024-12-02 05:50:34,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 05:50:34,528 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:34,528 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:34,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 05:50:34,528 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:34,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:34,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1002843642, now seen corresponding path program 1 times [2024-12-02 05:50:34,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:34,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305919047] [2024-12-02 05:50:34,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:34,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:34,717 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 05:50:34,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:34,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305919047] [2024-12-02 05:50:34,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305919047] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:34,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:34,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:50:34,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647955141] [2024-12-02 05:50:34,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:34,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:50:34,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:34,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:50:34,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:50:34,719 INFO L87 Difference]: Start difference. First operand 11959 states and 19974 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 05:50:36,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:36,223 INFO L93 Difference]: Finished difference Result 23927 states and 40123 transitions. [2024-12-02 05:50:36,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 05:50:36,224 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 129 [2024-12-02 05:50:36,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:36,280 INFO L225 Difference]: With dead ends: 23927 [2024-12-02 05:50:36,280 INFO L226 Difference]: Without dead ends: 12025 [2024-12-02 05:50:36,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 05:50:36,312 INFO L435 NwaCegarLoop]: 373 mSDtfsCounter, 1157 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 1580 SdHoareTripleChecker+Invalid, 2699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:36,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 1580 Invalid, 2699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 05:50:36,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12025 states. [2024-12-02 05:50:36,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12025 to 11959. [2024-12-02 05:50:36,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11959 states, 9109 states have (on average 1.614117905368317) internal successors, (14703), 9627 states have internal predecessors, (14703), 2251 states have call successors, (2251), 449 states have call predecessors, (2251), 598 states have return successors, (3012), 2207 states have call predecessors, (3012), 2246 states have call successors, (3012) [2024-12-02 05:50:36,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11959 states to 11959 states and 19966 transitions. [2024-12-02 05:50:36,961 INFO L78 Accepts]: Start accepts. Automaton has 11959 states and 19966 transitions. Word has length 129 [2024-12-02 05:50:36,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:36,961 INFO L471 AbstractCegarLoop]: Abstraction has 11959 states and 19966 transitions. [2024-12-02 05:50:36,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 05:50:36,961 INFO L276 IsEmpty]: Start isEmpty. Operand 11959 states and 19966 transitions. [2024-12-02 05:50:36,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 05:50:36,964 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:36,964 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:36,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 05:50:36,964 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:36,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:36,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1393621605, now seen corresponding path program 1 times [2024-12-02 05:50:36,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:36,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604440125] [2024-12-02 05:50:36,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:36,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:37,089 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 05:50:37,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:37,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604440125] [2024-12-02 05:50:37,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604440125] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:37,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:37,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:50:37,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236757657] [2024-12-02 05:50:37,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:37,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:50:37,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:37,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:50:37,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:37,090 INFO L87 Difference]: Start difference. First operand 11959 states and 19966 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 05:50:39,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:39,526 INFO L93 Difference]: Finished difference Result 39368 states and 67684 transitions. [2024-12-02 05:50:39,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:50:39,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 138 [2024-12-02 05:50:39,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:39,689 INFO L225 Difference]: With dead ends: 39368 [2024-12-02 05:50:39,689 INFO L226 Difference]: Without dead ends: 27454 [2024-12-02 05:50:39,741 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:50:39,741 INFO L435 NwaCegarLoop]: 396 mSDtfsCounter, 1733 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1803 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:39,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1803 Valid, 917 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 05:50:39,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27454 states. [2024-12-02 05:50:40,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27454 to 26556. [2024-12-02 05:50:40,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26556 states, 19745 states have (on average 1.607343631299063) internal successors, (31737), 21002 states have internal predecessors, (31737), 5552 states have call successors, (5552), 893 states have call predecessors, (5552), 1258 states have return successors, (8568), 5485 states have call predecessors, (8568), 5547 states have call successors, (8568) [2024-12-02 05:50:41,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26556 states to 26556 states and 45857 transitions. [2024-12-02 05:50:41,100 INFO L78 Accepts]: Start accepts. Automaton has 26556 states and 45857 transitions. Word has length 138 [2024-12-02 05:50:41,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:41,100 INFO L471 AbstractCegarLoop]: Abstraction has 26556 states and 45857 transitions. [2024-12-02 05:50:41,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 05:50:41,101 INFO L276 IsEmpty]: Start isEmpty. Operand 26556 states and 45857 transitions. [2024-12-02 05:50:41,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 05:50:41,103 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:41,103 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:41,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 05:50:41,103 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:41,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:41,104 INFO L85 PathProgramCache]: Analyzing trace with hash 770796456, now seen corresponding path program 1 times [2024-12-02 05:50:41,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:41,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278302503] [2024-12-02 05:50:41,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:41,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:41,186 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 05:50:41,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:41,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278302503] [2024-12-02 05:50:41,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278302503] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:41,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:41,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:50:41,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402563056] [2024-12-02 05:50:41,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:41,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:50:41,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:41,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:50:41,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:41,188 INFO L87 Difference]: Start difference. First operand 26556 states and 45857 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 05:50:45,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:45,872 INFO L93 Difference]: Finished difference Result 89094 states and 160399 transitions. [2024-12-02 05:50:45,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:50:45,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 141 [2024-12-02 05:50:45,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:46,186 INFO L225 Difference]: With dead ends: 89094 [2024-12-02 05:50:46,186 INFO L226 Difference]: Without dead ends: 62583 [2024-12-02 05:50:46,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:50:46,289 INFO L435 NwaCegarLoop]: 371 mSDtfsCounter, 1729 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:46,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1796 Valid, 884 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 05:50:46,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62583 states. [2024-12-02 05:50:49,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62583 to 60603. [2024-12-02 05:50:49,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60603 states, 43854 states have (on average 1.5986911114151503) internal successors, (70109), 46953 states have internal predecessors, (70109), 14089 states have call successors, (14089), 1781 states have call predecessors, (14089), 2659 states have return successors, (25528), 14008 states have call predecessors, (25528), 14084 states have call successors, (25528) [2024-12-02 05:50:49,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60603 states to 60603 states and 109726 transitions. [2024-12-02 05:50:49,808 INFO L78 Accepts]: Start accepts. Automaton has 60603 states and 109726 transitions. Word has length 141 [2024-12-02 05:50:49,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:49,808 INFO L471 AbstractCegarLoop]: Abstraction has 60603 states and 109726 transitions. [2024-12-02 05:50:49,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 05:50:49,808 INFO L276 IsEmpty]: Start isEmpty. Operand 60603 states and 109726 transitions. [2024-12-02 05:50:49,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 05:50:49,814 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:49,814 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:49,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 05:50:49,815 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:49,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:49,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1875229662, now seen corresponding path program 1 times [2024-12-02 05:50:49,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:49,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239999046] [2024-12-02 05:50:49,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:49,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:49,934 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 05:50:49,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:49,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239999046] [2024-12-02 05:50:49,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239999046] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:49,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:49,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:50:49,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411342709] [2024-12-02 05:50:49,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:49,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:50:49,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:49,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:50:49,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:49,936 INFO L87 Difference]: Start difference. First operand 60603 states and 109726 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 05:50:59,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:59,815 INFO L93 Difference]: Finished difference Result 206867 states and 396463 transitions. [2024-12-02 05:50:59,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:50:59,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 142 [2024-12-02 05:50:59,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:51:00,740 INFO L225 Difference]: With dead ends: 206867 [2024-12-02 05:51:00,740 INFO L226 Difference]: Without dead ends: 146309 [2024-12-02 05:51:01,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:51:01,065 INFO L435 NwaCegarLoop]: 371 mSDtfsCounter, 1717 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:51:01,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1783 Valid, 881 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 05:51:01,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146309 states. [2024-12-02 05:51:09,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146309 to 142321. [2024-12-02 05:51:09,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142321 states, 100092 states have (on average 1.5886084801982177) internal successors, (159007), 107848 states have internal predecessors, (159007), 36573 states have call successors, (36573), 3557 states have call predecessors, (36573), 5655 states have return successors, (78279), 36560 states have call predecessors, (78279), 36568 states have call successors, (78279) [2024-12-02 05:51:10,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142321 states to 142321 states and 273859 transitions. [2024-12-02 05:51:10,774 INFO L78 Accepts]: Start accepts. Automaton has 142321 states and 273859 transitions. Word has length 142 [2024-12-02 05:51:10,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:51:10,774 INFO L471 AbstractCegarLoop]: Abstraction has 142321 states and 273859 transitions. [2024-12-02 05:51:10,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 05:51:10,774 INFO L276 IsEmpty]: Start isEmpty. Operand 142321 states and 273859 transitions. [2024-12-02 05:51:10,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 05:51:10,782 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:51:10,782 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:51:10,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 05:51:10,782 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:51:10,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:10,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1948656271, now seen corresponding path program 1 times [2024-12-02 05:51:10,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:10,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702660124] [2024-12-02 05:51:10,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:10,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:10,864 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 05:51:10,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:51:10,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702660124] [2024-12-02 05:51:10,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702660124] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:51:10,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:51:10,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:51:10,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926870478] [2024-12-02 05:51:10,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:51:10,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:51:10,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:51:10,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:51:10,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:51:10,866 INFO L87 Difference]: Start difference. First operand 142321 states and 273859 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 05:51:38,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:51:38,429 INFO L93 Difference]: Finished difference Result 492755 states and 1023581 transitions. [2024-12-02 05:51:38,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:51:38,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 141 [2024-12-02 05:51:38,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:51:41,846 INFO L225 Difference]: With dead ends: 492755 [2024-12-02 05:51:41,846 INFO L226 Difference]: Without dead ends: 350479 [2024-12-02 05:51:42,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:51:42,971 INFO L435 NwaCegarLoop]: 368 mSDtfsCounter, 1711 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1778 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:51:42,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1778 Valid, 878 Invalid, 1479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 05:51:43,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350479 states. [2024-12-02 05:52:05,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350479 to 343991. [2024-12-02 05:52:06,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343991 states, 235298 states have (on average 1.5775442205203614) internal successors, (371193), 254979 states have internal predecessors, (371193), 96561 states have call successors, (96561), 7109 states have call predecessors, (96561), 12131 states have return successors, (244366), 96972 states have call predecessors, (244366), 96556 states have call successors, (244366) [2024-12-02 05:52:10,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343991 states to 343991 states and 712120 transitions. [2024-12-02 05:52:11,030 INFO L78 Accepts]: Start accepts. Automaton has 343991 states and 712120 transitions. Word has length 141 [2024-12-02 05:52:11,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:52:11,031 INFO L471 AbstractCegarLoop]: Abstraction has 343991 states and 712120 transitions. [2024-12-02 05:52:11,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 05:52:11,031 INFO L276 IsEmpty]: Start isEmpty. Operand 343991 states and 712120 transitions. [2024-12-02 05:52:11,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 05:52:11,049 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:52:11,049 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:52:11,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 05:52:11,050 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:52:11,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:11,050 INFO L85 PathProgramCache]: Analyzing trace with hash 278694047, now seen corresponding path program 1 times [2024-12-02 05:52:11,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:52:11,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598899370] [2024-12-02 05:52:11,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:11,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:52:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:11,184 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 05:52:11,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:52:11,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598899370] [2024-12-02 05:52:11,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598899370] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:52:11,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:52:11,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:52:11,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887312350] [2024-12-02 05:52:11,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:52:11,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:52:11,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:52:11,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:52:11,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:52:11,185 INFO L87 Difference]: Start difference. First operand 343991 states and 712120 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)