./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product03.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product03.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 859441835e916fdbcdc78c3c849990624cc8f637b8bbdd3bb312aaefa9b36e0f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 02:44:10,122 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 02:44:10,208 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 02:44:10,213 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 02:44:10,217 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 02:44:10,245 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 02:44:10,246 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 02:44:10,247 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 02:44:10,247 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 02:44:10,249 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 02:44:10,249 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 02:44:10,249 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 02:44:10,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 02:44:10,250 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 02:44:10,252 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 02:44:10,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 02:44:10,253 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 02:44:10,253 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 02:44:10,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 02:44:10,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 02:44:10,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 02:44:10,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 02:44:10,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 02:44:10,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 02:44:10,259 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 02:44:10,259 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 02:44:10,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 02:44:10,260 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 02:44:10,260 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 02:44:10,260 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 02:44:10,260 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 02:44:10,261 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 02:44:10,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 02:44:10,261 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 02:44:10,261 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 02:44:10,262 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 02:44:10,262 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 02:44:10,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 02:44:10,262 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 02:44:10,263 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 02:44:10,263 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 02:44:10,263 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 02:44:10,264 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 859441835e916fdbcdc78c3c849990624cc8f637b8bbdd3bb312aaefa9b36e0f [2024-10-14 02:44:10,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 02:44:10,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 02:44:10,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 02:44:10,555 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 02:44:10,555 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 02:44:10,556 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product03.cil.c [2024-10-14 02:44:11,992 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 02:44:12,293 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 02:44:12,294 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product03.cil.c [2024-10-14 02:44:12,323 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecdf7b1ca/b3a760671b48473dacff0773968aca97/FLAG25cdc74a0 [2024-10-14 02:44:12,568 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecdf7b1ca/b3a760671b48473dacff0773968aca97 [2024-10-14 02:44:12,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 02:44:12,571 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 02:44:12,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 02:44:12,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 02:44:12,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 02:44:12,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:44:12" (1/1) ... [2024-10-14 02:44:12,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@246f0fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:12, skipping insertion in model container [2024-10-14 02:44:12,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:44:12" (1/1) ... [2024-10-14 02:44:12,657 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 02:44:13,054 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product03.cil.c[29828,29841] [2024-10-14 02:44:13,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 02:44:13,252 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 02:44:13,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2024-10-14 02:44:13,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [716] [2024-10-14 02:44:13,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [837] [2024-10-14 02:44:13,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [851] [2024-10-14 02:44:13,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1217] [2024-10-14 02:44:13,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1226] [2024-10-14 02:44:13,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1264] [2024-10-14 02:44:13,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1622] [2024-10-14 02:44:13,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [3131] [2024-10-14 02:44:13,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3312] [2024-10-14 02:44:13,322 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product03.cil.c[29828,29841] [2024-10-14 02:44:13,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 02:44:13,413 INFO L204 MainTranslator]: Completed translation [2024-10-14 02:44:13,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:13 WrapperNode [2024-10-14 02:44:13,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 02:44:13,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 02:44:13,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 02:44:13,414 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 02:44:13,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:13" (1/1) ... [2024-10-14 02:44:13,447 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:13" (1/1) ... [2024-10-14 02:44:13,504 INFO L138 Inliner]: procedures = 92, calls = 336, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 1070 [2024-10-14 02:44:13,505 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 02:44:13,505 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 02:44:13,505 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 02:44:13,505 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 02:44:13,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:13" (1/1) ... [2024-10-14 02:44:13,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:13" (1/1) ... [2024-10-14 02:44:13,526 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:13" (1/1) ... [2024-10-14 02:44:13,553 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]. [2024-10-14 02:44:13,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:13" (1/1) ... [2024-10-14 02:44:13,554 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:13" (1/1) ... [2024-10-14 02:44:13,574 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:13" (1/1) ... [2024-10-14 02:44:13,600 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:13" (1/1) ... [2024-10-14 02:44:13,609 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:13" (1/1) ... [2024-10-14 02:44:13,614 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:13" (1/1) ... [2024-10-14 02:44:13,623 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 02:44:13,624 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 02:44:13,628 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 02:44:13,628 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 02:44:13,629 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:13" (1/1) ... [2024-10-14 02:44:13,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 02:44:13,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:44:13,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 02:44:13,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 02:44:13,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 02:44:13,725 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-10-14 02:44:13,725 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-10-14 02:44:13,725 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-10-14 02:44:13,725 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-10-14 02:44:13,725 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-10-14 02:44:13,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-10-14 02:44:13,726 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-10-14 02:44:13,726 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-10-14 02:44:13,726 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-10-14 02:44:13,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-10-14 02:44:13,727 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-14 02:44:13,727 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-14 02:44:13,727 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-14 02:44:13,727 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-14 02:44:13,728 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-10-14 02:44:13,728 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-10-14 02:44:13,728 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-14 02:44:13,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-14 02:44:13,728 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-10-14 02:44:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-10-14 02:44:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-10-14 02:44:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-10-14 02:44:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-10-14 02:44:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-10-14 02:44:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-10-14 02:44:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-10-14 02:44:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-10-14 02:44:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-10-14 02:44:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-10-14 02:44:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-10-14 02:44:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-10-14 02:44:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-10-14 02:44:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-10-14 02:44:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-10-14 02:44:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-10-14 02:44:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-10-14 02:44:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2024-10-14 02:44:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2024-10-14 02:44:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 02:44:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 02:44:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 02:44:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 02:44:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-14 02:44:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-14 02:44:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-14 02:44:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-14 02:44:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-14 02:44:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-14 02:44:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-14 02:44:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-14 02:44:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-14 02:44:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-14 02:44:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-14 02:44:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-14 02:44:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-14 02:44:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-14 02:44:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-14 02:44:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-10-14 02:44:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-10-14 02:44:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-10-14 02:44:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-10-14 02:44:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-10-14 02:44:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-10-14 02:44:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-10-14 02:44:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 02:44:13,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 02:44:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-10-14 02:44:13,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-10-14 02:44:13,941 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 02:44:13,944 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 02:44:15,102 INFO L? ?]: Removed 431 outVars from TransFormulas that were not future-live. [2024-10-14 02:44:15,102 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 02:44:15,185 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 02:44:15,185 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 02:44:15,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:44:15 BoogieIcfgContainer [2024-10-14 02:44:15,186 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 02:44:15,189 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 02:44:15,190 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 02:44:15,193 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 02:44:15,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:44:12" (1/3) ... [2024-10-14 02:44:15,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c866a40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:44:15, skipping insertion in model container [2024-10-14 02:44:15,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:13" (2/3) ... [2024-10-14 02:44:15,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c866a40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:44:15, skipping insertion in model container [2024-10-14 02:44:15,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:44:15" (3/3) ... [2024-10-14 02:44:15,197 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product03.cil.c [2024-10-14 02:44:15,217 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 02:44:15,218 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 02:44:15,306 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 02:44:15,315 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;@5e6facfd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 02:44:15,315 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 02:44:15,323 INFO L276 IsEmpty]: Start isEmpty. Operand has 525 states, 406 states have (on average 1.729064039408867) internal successors, (702), 427 states have internal predecessors, (702), 94 states have call successors, (94), 23 states have call predecessors, (94), 23 states have return successors, (94), 88 states have call predecessors, (94), 94 states have call successors, (94) [2024-10-14 02:44:15,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-14 02:44:15,362 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:44:15,363 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:44:15,363 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:44:15,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:44:15,371 INFO L85 PathProgramCache]: Analyzing trace with hash 2030237672, now seen corresponding path program 1 times [2024-10-14 02:44:15,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:44:15,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848241768] [2024-10-14 02:44:15,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:44:15,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:44:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:16,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:44:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:16,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:16,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 02:44:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:16,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:44:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:16,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:16,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:16,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:16,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:16,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:44:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:16,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:44:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:16,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:16,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:17,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 02:44:17,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:17,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 02:44:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:17,022 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 02:44:17,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:44:17,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848241768] [2024-10-14 02:44:17,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848241768] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:44:17,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:44:17,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 02:44:17,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300623338] [2024-10-14 02:44:17,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:44:17,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 02:44:17,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:44:17,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 02:44:17,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-10-14 02:44:17,059 INFO L87 Difference]: Start difference. First operand has 525 states, 406 states have (on average 1.729064039408867) internal successors, (702), 427 states have internal predecessors, (702), 94 states have call successors, (94), 23 states have call predecessors, (94), 23 states have return successors, (94), 88 states have call predecessors, (94), 94 states have call successors, (94) Second operand has 16 states, 15 states have (on average 3.8) internal successors, (57), 10 states have internal predecessors, (57), 3 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:44:35,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:44:35,472 INFO L93 Difference]: Finished difference Result 2003 states and 3581 transitions. [2024-10-14 02:44:35,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-14 02:44:35,474 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.8) internal successors, (57), 10 states have internal predecessors, (57), 3 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 90 [2024-10-14 02:44:35,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:44:35,511 INFO L225 Difference]: With dead ends: 2003 [2024-10-14 02:44:35,512 INFO L226 Difference]: Without dead ends: 1484 [2024-10-14 02:44:35,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=255, Invalid=1305, Unknown=0, NotChecked=0, Total=1560 [2024-10-14 02:44:35,531 INFO L432 NwaCegarLoop]: 836 mSDtfsCounter, 4140 mSDsluCounter, 7022 mSDsCounter, 0 mSdLazyCounter, 18936 mSolverCounterSat, 1517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4162 SdHoareTripleChecker+Valid, 7858 SdHoareTripleChecker+Invalid, 20453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1517 IncrementalHoareTripleChecker+Valid, 18936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-10-14 02:44:35,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4162 Valid, 7858 Invalid, 20453 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1517 Valid, 18936 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2024-10-14 02:44:35,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2024-10-14 02:44:35,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1106. [2024-10-14 02:44:35,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 831 states have (on average 1.6847172081829123) internal successors, (1400), 871 states have internal predecessors, (1400), 223 states have call successors, (223), 42 states have call predecessors, (223), 51 states have return successors, (293), 223 states have call predecessors, (293), 218 states have call successors, (293) [2024-10-14 02:44:35,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1916 transitions. [2024-10-14 02:44:35,932 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1916 transitions. Word has length 90 [2024-10-14 02:44:35,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:44:35,932 INFO L471 AbstractCegarLoop]: Abstraction has 1106 states and 1916 transitions. [2024-10-14 02:44:35,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.8) internal successors, (57), 10 states have internal predecessors, (57), 3 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:44:35,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1916 transitions. [2024-10-14 02:44:35,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-14 02:44:35,942 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:44:35,942 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:44:35,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 02:44:35,945 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:44:35,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:44:35,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1735217472, now seen corresponding path program 1 times [2024-10-14 02:44:35,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:44:35,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342994617] [2024-10-14 02:44:35,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:44:35,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:44:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:36,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:44:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:36,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:36,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:44:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:36,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:44:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:36,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:36,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:36,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:36,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:44:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:36,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:44:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:36,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:36,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:36,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:44:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:36,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 02:44:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:36,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 02:44:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:36,676 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-14 02:44:36,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:44:36,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342994617] [2024-10-14 02:44:36,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342994617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:44:36,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:44:36,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 02:44:36,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024513168] [2024-10-14 02:44:36,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:44:36,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 02:44:36,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:44:36,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 02:44:36,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 02:44:36,679 INFO L87 Difference]: Start difference. First operand 1106 states and 1916 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:44:45,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:44:45,756 INFO L93 Difference]: Finished difference Result 4082 states and 7406 transitions. [2024-10-14 02:44:45,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 02:44:45,757 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 93 [2024-10-14 02:44:45,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:44:45,783 INFO L225 Difference]: With dead ends: 4082 [2024-10-14 02:44:45,783 INFO L226 Difference]: Without dead ends: 2988 [2024-10-14 02:44:45,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:44:45,793 INFO L432 NwaCegarLoop]: 724 mSDtfsCounter, 2099 mSDsluCounter, 2318 mSDsCounter, 0 mSdLazyCounter, 6032 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2184 SdHoareTripleChecker+Valid, 3042 SdHoareTripleChecker+Invalid, 6656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 6032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-10-14 02:44:45,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2184 Valid, 3042 Invalid, 6656 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [624 Valid, 6032 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2024-10-14 02:44:45,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2024-10-14 02:44:46,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 2220. [2024-10-14 02:44:46,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2220 states, 1671 states have (on average 1.6822262118491922) internal successors, (2811), 1742 states have internal predecessors, (2811), 450 states have call successors, (450), 76 states have call predecessors, (450), 98 states have return successors, (611), 459 states have call predecessors, (611), 445 states have call successors, (611) [2024-10-14 02:44:46,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2220 states to 2220 states and 3872 transitions. [2024-10-14 02:44:46,287 INFO L78 Accepts]: Start accepts. Automaton has 2220 states and 3872 transitions. Word has length 93 [2024-10-14 02:44:46,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:44:46,288 INFO L471 AbstractCegarLoop]: Abstraction has 2220 states and 3872 transitions. [2024-10-14 02:44:46,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:44:46,289 INFO L276 IsEmpty]: Start isEmpty. Operand 2220 states and 3872 transitions. [2024-10-14 02:44:46,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-14 02:44:46,295 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:44:46,296 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:44:46,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 02:44:46,301 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:44:46,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:44:46,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1293880425, now seen corresponding path program 1 times [2024-10-14 02:44:46,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:44:46,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773959298] [2024-10-14 02:44:46,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:44:46,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:44:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:46,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:44:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:46,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:46,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 02:44:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:46,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-14 02:44:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:46,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:46,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:46,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:46,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:44:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:46,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:44:46,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:46,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:46,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:46,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:44:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:46,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 02:44:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:46,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 02:44:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:46,862 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-14 02:44:46,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:44:46,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773959298] [2024-10-14 02:44:46,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773959298] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:44:46,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:44:46,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:44:46,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135182252] [2024-10-14 02:44:46,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:44:46,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:44:46,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:44:46,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:44:46,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:44:46,865 INFO L87 Difference]: Start difference. First operand 2220 states and 3872 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:44:51,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:44:51,480 INFO L93 Difference]: Finished difference Result 5155 states and 9246 transitions. [2024-10-14 02:44:51,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 02:44:51,480 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 94 [2024-10-14 02:44:51,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:44:51,514 INFO L225 Difference]: With dead ends: 5155 [2024-10-14 02:44:51,514 INFO L226 Difference]: Without dead ends: 2947 [2024-10-14 02:44:51,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:44:51,533 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 1335 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 2916 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 3259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 2916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-14 02:44:51,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 1679 Invalid, 3259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [343 Valid, 2916 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-14 02:44:51,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2024-10-14 02:44:52,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 2220. [2024-10-14 02:44:52,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2220 states, 1671 states have (on average 1.6816277678037104) internal successors, (2810), 1742 states have internal predecessors, (2810), 450 states have call successors, (450), 76 states have call predecessors, (450), 98 states have return successors, (611), 459 states have call predecessors, (611), 445 states have call successors, (611) [2024-10-14 02:44:52,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2220 states to 2220 states and 3871 transitions. [2024-10-14 02:44:52,054 INFO L78 Accepts]: Start accepts. Automaton has 2220 states and 3871 transitions. Word has length 94 [2024-10-14 02:44:52,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:44:52,056 INFO L471 AbstractCegarLoop]: Abstraction has 2220 states and 3871 transitions. [2024-10-14 02:44:52,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:44:52,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2220 states and 3871 transitions. [2024-10-14 02:44:52,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-14 02:44:52,064 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:44:52,065 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:44:52,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 02:44:52,065 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:44:52,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:44:52,066 INFO L85 PathProgramCache]: Analyzing trace with hash -469365606, now seen corresponding path program 1 times [2024-10-14 02:44:52,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:44:52,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170892266] [2024-10-14 02:44:52,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:44:52,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:44:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:52,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:44:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:52,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:52,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 02:44:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:52,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-14 02:44:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:52,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:52,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:52,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:52,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:44:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:52,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:44:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:52,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:52,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:52,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:44:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:52,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 02:44:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:52,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 02:44:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:52,679 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-14 02:44:52,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:44:52,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170892266] [2024-10-14 02:44:52,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170892266] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:44:52,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:44:52,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:44:52,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222292587] [2024-10-14 02:44:52,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:44:52,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:44:52,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:44:52,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:44:52,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:44:52,681 INFO L87 Difference]: Start difference. First operand 2220 states and 3871 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:44:57,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:44:57,489 INFO L93 Difference]: Finished difference Result 5155 states and 9245 transitions. [2024-10-14 02:44:57,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 02:44:57,490 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 95 [2024-10-14 02:44:57,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:44:57,513 INFO L225 Difference]: With dead ends: 5155 [2024-10-14 02:44:57,513 INFO L226 Difference]: Without dead ends: 2947 [2024-10-14 02:44:57,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:44:57,530 INFO L432 NwaCegarLoop]: 440 mSDtfsCounter, 1339 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 2889 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 3245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 2889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-10-14 02:44:57,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1418 Valid, 1651 Invalid, 3245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 2889 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-10-14 02:44:57,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2024-10-14 02:44:57,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 2220. [2024-10-14 02:44:57,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2220 states, 1671 states have (on average 1.6810293237582286) internal successors, (2809), 1742 states have internal predecessors, (2809), 450 states have call successors, (450), 76 states have call predecessors, (450), 98 states have return successors, (611), 459 states have call predecessors, (611), 445 states have call successors, (611) [2024-10-14 02:44:58,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2220 states to 2220 states and 3870 transitions. [2024-10-14 02:44:58,012 INFO L78 Accepts]: Start accepts. Automaton has 2220 states and 3870 transitions. Word has length 95 [2024-10-14 02:44:58,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:44:58,013 INFO L471 AbstractCegarLoop]: Abstraction has 2220 states and 3870 transitions. [2024-10-14 02:44:58,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:44:58,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2220 states and 3870 transitions. [2024-10-14 02:44:58,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-14 02:44:58,019 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:44:58,019 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:44:58,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 02:44:58,020 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:44:58,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:44:58,020 INFO L85 PathProgramCache]: Analyzing trace with hash -603860660, now seen corresponding path program 1 times [2024-10-14 02:44:58,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:44:58,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438201126] [2024-10-14 02:44:58,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:44:58,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:44:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:58,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:44:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:58,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:58,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-14 02:44:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:58,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 02:44:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:58,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:58,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:58,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:58,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:44:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:58,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:44:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:58,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:58,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:44:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:58,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 02:44:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:58,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 02:44:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:58,792 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 02:44:58,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:44:58,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438201126] [2024-10-14 02:44:58,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438201126] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:44:58,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960462568] [2024-10-14 02:44:58,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:44:58,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:44:58,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:44:58,797 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:44:58,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 02:44:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:44:59,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 1396 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 02:44:59,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:44:59,144 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 02:44:59,145 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:44:59,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960462568] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:44:59,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:44:59,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2024-10-14 02:44:59,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472996842] [2024-10-14 02:44:59,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:44:59,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 02:44:59,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:44:59,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 02:44:59,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:44:59,147 INFO L87 Difference]: Start difference. First operand 2220 states and 3870 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:44:59,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:44:59,674 INFO L93 Difference]: Finished difference Result 4428 states and 7726 transitions. [2024-10-14 02:44:59,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 02:44:59,675 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2024-10-14 02:44:59,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:44:59,690 INFO L225 Difference]: With dead ends: 4428 [2024-10-14 02:44:59,691 INFO L226 Difference]: Without dead ends: 2220 [2024-10-14 02:44:59,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:44:59,702 INFO L432 NwaCegarLoop]: 854 mSDtfsCounter, 1 mSDsluCounter, 1704 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:44:59,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2558 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:44:59,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2024-10-14 02:45:00,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 2220. [2024-10-14 02:45:00,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2220 states, 1671 states have (on average 1.680430879712747) internal successors, (2808), 1742 states have internal predecessors, (2808), 450 states have call successors, (450), 76 states have call predecessors, (450), 98 states have return successors, (611), 459 states have call predecessors, (611), 445 states have call successors, (611) [2024-10-14 02:45:00,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2220 states to 2220 states and 3869 transitions. [2024-10-14 02:45:00,162 INFO L78 Accepts]: Start accepts. Automaton has 2220 states and 3869 transitions. Word has length 96 [2024-10-14 02:45:00,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:45:00,162 INFO L471 AbstractCegarLoop]: Abstraction has 2220 states and 3869 transitions. [2024-10-14 02:45:00,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:45:00,163 INFO L276 IsEmpty]: Start isEmpty. Operand 2220 states and 3869 transitions. [2024-10-14 02:45:00,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-14 02:45:00,167 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:45:00,168 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:45:00,190 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 02:45:00,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:45:00,369 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:45:00,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:45:00,369 INFO L85 PathProgramCache]: Analyzing trace with hash 686163215, now seen corresponding path program 1 times [2024-10-14 02:45:00,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:45:00,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434270974] [2024-10-14 02:45:00,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:45:00,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:45:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:00,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:45:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:00,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:00,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:45:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:00,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 02:45:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:01,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:01,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:01,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:01,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:45:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:01,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:45:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:01,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:01,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:01,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:01,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 02:45:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:01,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 02:45:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:01,170 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 02:45:01,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:45:01,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434270974] [2024-10-14 02:45:01,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434270974] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:45:01,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030380913] [2024-10-14 02:45:01,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:45:01,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:45:01,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:45:01,173 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:45:01,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 02:45:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:01,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 1397 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 02:45:01,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:45:01,582 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 02:45:01,583 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:45:01,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030380913] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:45:01,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:45:01,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2024-10-14 02:45:01,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260633952] [2024-10-14 02:45:01,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:45:01,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 02:45:01,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:45:01,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 02:45:01,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:45:01,586 INFO L87 Difference]: Start difference. First operand 2220 states and 3869 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:45:02,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:45:02,140 INFO L93 Difference]: Finished difference Result 4398 states and 7665 transitions. [2024-10-14 02:45:02,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 02:45:02,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 97 [2024-10-14 02:45:02,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:45:02,157 INFO L225 Difference]: With dead ends: 4398 [2024-10-14 02:45:02,157 INFO L226 Difference]: Without dead ends: 2230 [2024-10-14 02:45:02,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:45:02,169 INFO L432 NwaCegarLoop]: 812 mSDtfsCounter, 55 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:45:02,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 2411 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 02:45:02,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2024-10-14 02:45:02,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2220. [2024-10-14 02:45:02,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2220 states, 1671 states have (on average 1.677438659485338) internal successors, (2803), 1742 states have internal predecessors, (2803), 450 states have call successors, (450), 76 states have call predecessors, (450), 98 states have return successors, (611), 459 states have call predecessors, (611), 445 states have call successors, (611) [2024-10-14 02:45:02,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2220 states to 2220 states and 3864 transitions. [2024-10-14 02:45:02,541 INFO L78 Accepts]: Start accepts. Automaton has 2220 states and 3864 transitions. Word has length 97 [2024-10-14 02:45:02,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:45:02,542 INFO L471 AbstractCegarLoop]: Abstraction has 2220 states and 3864 transitions. [2024-10-14 02:45:02,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:45:02,542 INFO L276 IsEmpty]: Start isEmpty. Operand 2220 states and 3864 transitions. [2024-10-14 02:45:02,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-14 02:45:02,547 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:45:02,547 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:45:02,566 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 02:45:02,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-14 02:45:02,748 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:45:02,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:45:02,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1666365688, now seen corresponding path program 1 times [2024-10-14 02:45:02,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:45:02,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341670284] [2024-10-14 02:45:02,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:45:02,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:45:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:02,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:45:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:03,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:03,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:45:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:03,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:45:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:03,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:03,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:03,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:03,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:45:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:03,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:45:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:03,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:03,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:03,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 02:45:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:03,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 02:45:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:03,472 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 02:45:03,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:45:03,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341670284] [2024-10-14 02:45:03,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341670284] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:45:03,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316060847] [2024-10-14 02:45:03,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:45:03,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:45:03,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:45:03,475 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:45:03,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 02:45:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:03,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 1398 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 02:45:03,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:45:03,773 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 02:45:03,773 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:45:03,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316060847] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:45:03,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:45:03,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2024-10-14 02:45:03,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157551886] [2024-10-14 02:45:03,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:45:03,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 02:45:03,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:45:03,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 02:45:03,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:45:03,776 INFO L87 Difference]: Start difference. First operand 2220 states and 3864 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:45:04,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:45:04,194 INFO L93 Difference]: Finished difference Result 4398 states and 7660 transitions. [2024-10-14 02:45:04,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 02:45:04,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2024-10-14 02:45:04,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:45:04,212 INFO L225 Difference]: With dead ends: 4398 [2024-10-14 02:45:04,212 INFO L226 Difference]: Without dead ends: 2230 [2024-10-14 02:45:04,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:45:04,224 INFO L432 NwaCegarLoop]: 812 mSDtfsCounter, 54 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:45:04,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 2411 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 02:45:04,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2024-10-14 02:45:04,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2220. [2024-10-14 02:45:04,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2220 states, 1671 states have (on average 1.6744464392579295) internal successors, (2798), 1742 states have internal predecessors, (2798), 450 states have call successors, (450), 76 states have call predecessors, (450), 98 states have return successors, (611), 459 states have call predecessors, (611), 445 states have call successors, (611) [2024-10-14 02:45:04,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2220 states to 2220 states and 3859 transitions. [2024-10-14 02:45:04,610 INFO L78 Accepts]: Start accepts. Automaton has 2220 states and 3859 transitions. Word has length 98 [2024-10-14 02:45:04,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:45:04,611 INFO L471 AbstractCegarLoop]: Abstraction has 2220 states and 3859 transitions. [2024-10-14 02:45:04,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:45:04,611 INFO L276 IsEmpty]: Start isEmpty. Operand 2220 states and 3859 transitions. [2024-10-14 02:45:04,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-14 02:45:04,615 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:45:04,615 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:45:04,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 02:45:04,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:45:04,816 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:45:04,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:45:04,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1404028261, now seen corresponding path program 1 times [2024-10-14 02:45:04,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:45:04,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002549987] [2024-10-14 02:45:04,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:45:04,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:45:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:05,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:45:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:05,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:05,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:45:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:05,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 02:45:05,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:05,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:05,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:05,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:05,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:45:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:05,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:45:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:05,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:05,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:05,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:05,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:45:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:05,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 02:45:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:05,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 02:45:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:05,424 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-14 02:45:05,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:45:05,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002549987] [2024-10-14 02:45:05,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002549987] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:45:05,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:45:05,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:45:05,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419683218] [2024-10-14 02:45:05,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:45:05,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:45:05,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:45:05,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:45:05,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:45:05,426 INFO L87 Difference]: Start difference. First operand 2220 states and 3859 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:45:10,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:45:10,027 INFO L93 Difference]: Finished difference Result 5127 states and 9175 transitions. [2024-10-14 02:45:10,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:45:10,028 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2024-10-14 02:45:10,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:45:10,049 INFO L225 Difference]: With dead ends: 5127 [2024-10-14 02:45:10,050 INFO L226 Difference]: Without dead ends: 2959 [2024-10-14 02:45:10,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-10-14 02:45:10,059 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 980 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 2902 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 1715 SdHoareTripleChecker+Invalid, 3107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 2902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-10-14 02:45:10,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 1715 Invalid, 3107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 2902 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-10-14 02:45:10,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2024-10-14 02:45:10,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 2220. [2024-10-14 02:45:10,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2220 states, 1671 states have (on average 1.6714542190305206) internal successors, (2793), 1742 states have internal predecessors, (2793), 450 states have call successors, (450), 76 states have call predecessors, (450), 98 states have return successors, (611), 459 states have call predecessors, (611), 445 states have call successors, (611) [2024-10-14 02:45:10,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2220 states to 2220 states and 3854 transitions. [2024-10-14 02:45:10,464 INFO L78 Accepts]: Start accepts. Automaton has 2220 states and 3854 transitions. Word has length 99 [2024-10-14 02:45:10,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:45:10,465 INFO L471 AbstractCegarLoop]: Abstraction has 2220 states and 3854 transitions. [2024-10-14 02:45:10,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:45:10,465 INFO L276 IsEmpty]: Start isEmpty. Operand 2220 states and 3854 transitions. [2024-10-14 02:45:10,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-14 02:45:10,470 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:45:10,470 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:45:10,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 02:45:10,470 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:45:10,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:45:10,471 INFO L85 PathProgramCache]: Analyzing trace with hash 2012020964, now seen corresponding path program 1 times [2024-10-14 02:45:10,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:45:10,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529619858] [2024-10-14 02:45:10,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:45:10,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:45:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:10,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:45:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:10,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:10,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:45:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:11,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:45:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:11,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:11,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:11,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:11,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:45:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:11,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:45:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:11,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:11,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:11,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:45:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:11,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 02:45:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:11,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 02:45:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:11,099 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-14 02:45:11,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:45:11,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529619858] [2024-10-14 02:45:11,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529619858] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:45:11,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:45:11,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:45:11,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395634230] [2024-10-14 02:45:11,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:45:11,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:45:11,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:45:11,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:45:11,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:45:11,102 INFO L87 Difference]: Start difference. First operand 2220 states and 3854 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:45:15,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:45:15,585 INFO L93 Difference]: Finished difference Result 5127 states and 9170 transitions. [2024-10-14 02:45:15,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:45:15,586 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2024-10-14 02:45:15,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:45:15,611 INFO L225 Difference]: With dead ends: 5127 [2024-10-14 02:45:15,611 INFO L226 Difference]: Without dead ends: 2959 [2024-10-14 02:45:15,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-10-14 02:45:15,623 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 980 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 2867 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 3071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 2867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-10-14 02:45:15,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 1726 Invalid, 3071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 2867 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-10-14 02:45:15,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2024-10-14 02:45:16,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 2220. [2024-10-14 02:45:16,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2220 states, 1671 states have (on average 1.668461998803112) internal successors, (2788), 1742 states have internal predecessors, (2788), 450 states have call successors, (450), 76 states have call predecessors, (450), 98 states have return successors, (611), 459 states have call predecessors, (611), 445 states have call successors, (611) [2024-10-14 02:45:16,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2220 states to 2220 states and 3849 transitions. [2024-10-14 02:45:16,245 INFO L78 Accepts]: Start accepts. Automaton has 2220 states and 3849 transitions. Word has length 100 [2024-10-14 02:45:16,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:45:16,246 INFO L471 AbstractCegarLoop]: Abstraction has 2220 states and 3849 transitions. [2024-10-14 02:45:16,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 02:45:16,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2220 states and 3849 transitions. [2024-10-14 02:45:16,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-14 02:45:16,251 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:45:16,252 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:45:16,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 02:45:16,252 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:45:16,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:45:16,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1502682658, now seen corresponding path program 1 times [2024-10-14 02:45:16,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:45:16,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805244866] [2024-10-14 02:45:16,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:45:16,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:45:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:16,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:45:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:16,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:16,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:45:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:16,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:45:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:16,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:16,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:16,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:16,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:45:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:16,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:45:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:16,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:16,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:16,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 02:45:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:16,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 02:45:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:16,911 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 02:45:16,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:45:16,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805244866] [2024-10-14 02:45:16,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805244866] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:45:16,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:45:16,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 02:45:16,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671235350] [2024-10-14 02:45:16,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:45:16,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 02:45:16,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:45:16,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 02:45:16,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:45:16,917 INFO L87 Difference]: Start difference. First operand 2220 states and 3849 transitions. Second operand has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:45:22,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:45:22,566 INFO L93 Difference]: Finished difference Result 5054 states and 9027 transitions. [2024-10-14 02:45:22,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 02:45:22,567 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 100 [2024-10-14 02:45:22,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:45:22,584 INFO L225 Difference]: With dead ends: 5054 [2024-10-14 02:45:22,585 INFO L226 Difference]: Without dead ends: 2961 [2024-10-14 02:45:22,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-10-14 02:45:22,594 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 1792 mSDsluCounter, 2467 mSDsCounter, 0 mSdLazyCounter, 4853 mSolverCounterSat, 510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1872 SdHoareTripleChecker+Valid, 2914 SdHoareTripleChecker+Invalid, 5363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 4853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-10-14 02:45:22,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1872 Valid, 2914 Invalid, 5363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 4853 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-10-14 02:45:22,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2024-10-14 02:45:22,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 2222. [2024-10-14 02:45:22,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2222 states, 1673 states have (on average 1.6676628810520024) internal successors, (2790), 1744 states have internal predecessors, (2790), 450 states have call successors, (450), 76 states have call predecessors, (450), 98 states have return successors, (611), 459 states have call predecessors, (611), 445 states have call successors, (611) [2024-10-14 02:45:22,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2222 states to 2222 states and 3851 transitions. [2024-10-14 02:45:22,973 INFO L78 Accepts]: Start accepts. Automaton has 2222 states and 3851 transitions. Word has length 100 [2024-10-14 02:45:22,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:45:22,973 INFO L471 AbstractCegarLoop]: Abstraction has 2222 states and 3851 transitions. [2024-10-14 02:45:22,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:45:22,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states and 3851 transitions. [2024-10-14 02:45:22,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-14 02:45:22,978 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:45:22,978 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:45:22,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 02:45:22,978 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:45:22,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:45:22,979 INFO L85 PathProgramCache]: Analyzing trace with hash 833495513, now seen corresponding path program 1 times [2024-10-14 02:45:22,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:45:22,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896821335] [2024-10-14 02:45:22,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:45:22,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:45:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:23,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:45:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:23,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:23,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:23,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:45:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:23,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 02:45:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:23,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:23,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:23,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:23,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:23,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:45:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:23,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:45:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:23,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:23,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:23,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 02:45:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:23,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 02:45:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:23,587 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 02:45:23,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:45:23,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896821335] [2024-10-14 02:45:23,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896821335] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:45:23,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:45:23,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 02:45:23,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270536470] [2024-10-14 02:45:23,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:45:23,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 02:45:23,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:45:23,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 02:45:23,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:45:23,589 INFO L87 Difference]: Start difference. First operand 2222 states and 3851 transitions. Second operand has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:45:30,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:45:30,007 INFO L93 Difference]: Finished difference Result 5129 states and 9170 transitions. [2024-10-14 02:45:30,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 02:45:30,008 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 101 [2024-10-14 02:45:30,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:45:30,030 INFO L225 Difference]: With dead ends: 5129 [2024-10-14 02:45:30,030 INFO L226 Difference]: Without dead ends: 2971 [2024-10-14 02:45:30,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-14 02:45:30,042 INFO L432 NwaCegarLoop]: 453 mSDtfsCounter, 979 mSDsluCounter, 2597 mSDsCounter, 0 mSdLazyCounter, 5206 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 5410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 5206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-10-14 02:45:30,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 3050 Invalid, 5410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 5206 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-10-14 02:45:30,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2024-10-14 02:45:30,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 2232. [2024-10-14 02:45:30,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2232 states, 1680 states have (on average 1.6672619047619048) internal successors, (2801), 1753 states have internal predecessors, (2801), 451 states have call successors, (451), 76 states have call predecessors, (451), 100 states have return successors, (614), 460 states have call predecessors, (614), 446 states have call successors, (614) [2024-10-14 02:45:30,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2232 states to 2232 states and 3866 transitions. [2024-10-14 02:45:30,497 INFO L78 Accepts]: Start accepts. Automaton has 2232 states and 3866 transitions. Word has length 101 [2024-10-14 02:45:30,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:45:30,499 INFO L471 AbstractCegarLoop]: Abstraction has 2232 states and 3866 transitions. [2024-10-14 02:45:30,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:45:30,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2232 states and 3866 transitions. [2024-10-14 02:45:30,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-14 02:45:30,510 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:45:30,510 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:45:30,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 02:45:30,510 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:45:30,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:45:30,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2074495519, now seen corresponding path program 1 times [2024-10-14 02:45:30,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:45:30,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963202246] [2024-10-14 02:45:30,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:45:30,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:45:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:30,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:45:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:30,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 02:45:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:45:30,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 02:45:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat