./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec1_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/product-lines/elevator_spec1_product17.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 09d600be73ca435c113b9c0e8e087d96a910d62ea2126c235d6963c00b3a91c2 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 14:48:37,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 14:48:37,202 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 14:48:37,209 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 14:48:37,209 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 14:48:37,235 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 14:48:37,235 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 14:48:37,236 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 14:48:37,236 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 14:48:37,237 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 14:48:37,237 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 14:48:37,237 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 14:48:37,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 14:48:37,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 14:48:37,240 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 14:48:37,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 14:48:37,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 14:48:37,241 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 14:48:37,241 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 14:48:37,242 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 14:48:37,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 14:48:37,246 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 14:48:37,247 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 14:48:37,247 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 14:48:37,247 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 14:48:37,247 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 14:48:37,248 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 14:48:37,248 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 14:48:37,248 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 14:48:37,248 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 14:48:37,249 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 14:48:37,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 14:48:37,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:48:37,249 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 14:48:37,250 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 14:48:37,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 14:48:37,252 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 14:48:37,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 14:48:37,252 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 14:48:37,253 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 14:48:37,253 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 14:48:37,253 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 14:48:37,253 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09d600be73ca435c113b9c0e8e087d96a910d62ea2126c235d6963c00b3a91c2 [2024-11-08 14:48:37,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 14:48:37,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 14:48:37,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 14:48:37,597 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 14:48:37,597 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 14:48:37,598 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec1_product17.cil.c [2024-11-08 14:48:39,034 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 14:48:39,344 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 14:48:39,345 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec1_product17.cil.c [2024-11-08 14:48:39,393 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4907978b/5cb9e065516d4488ac17722676914192/FLAG7ddbd2638 [2024-11-08 14:48:39,436 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4907978b/5cb9e065516d4488ac17722676914192 [2024-11-08 14:48:39,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 14:48:39,449 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 14:48:39,451 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 14:48:39,451 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 14:48:39,488 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 14:48:39,489 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:48:39" (1/1) ... [2024-11-08 14:48:39,490 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@714b43c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:48:39, skipping insertion in model container [2024-11-08 14:48:39,490 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:48:39" (1/1) ... [2024-11-08 14:48:39,549 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 14:48:39,927 WARN L250 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_spec1_product17.cil.c[27470,27483] [2024-11-08 14:48:40,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:48:40,103 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 14:48:40,115 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2024-11-08 14:48:40,116 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [721] [2024-11-08 14:48:40,116 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1087] [2024-11-08 14:48:40,116 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1103] [2024-11-08 14:48:40,117 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1112] [2024-11-08 14:48:40,117 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1150] [2024-11-08 14:48:40,117 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [2604] [2024-11-08 14:48:40,117 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2785] [2024-11-08 14:48:40,117 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2878] [2024-11-08 14:48:40,118 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3228] [2024-11-08 14:48:40,146 WARN L250 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_spec1_product17.cil.c[27470,27483] [2024-11-08 14:48:40,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:48:40,234 INFO L204 MainTranslator]: Completed translation [2024-11-08 14:48:40,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:48:40 WrapperNode [2024-11-08 14:48:40,235 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 14:48:40,236 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 14:48:40,236 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 14:48:40,236 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 14:48:40,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:48:40" (1/1) ... [2024-11-08 14:48:40,270 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:48:40" (1/1) ... [2024-11-08 14:48:40,321 INFO L138 Inliner]: procedures = 90, calls = 333, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 790 [2024-11-08 14:48:40,322 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 14:48:40,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 14:48:40,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 14:48:40,323 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 14:48:40,342 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:48:40" (1/1) ... [2024-11-08 14:48:40,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:48:40" (1/1) ... [2024-11-08 14:48:40,348 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:48:40" (1/1) ... [2024-11-08 14:48:40,387 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-08 14:48:40,387 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:48:40" (1/1) ... [2024-11-08 14:48:40,387 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:48:40" (1/1) ... [2024-11-08 14:48:40,413 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:48:40" (1/1) ... [2024-11-08 14:48:40,426 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:48:40" (1/1) ... [2024-11-08 14:48:40,432 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:48:40" (1/1) ... [2024-11-08 14:48:40,436 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:48:40" (1/1) ... [2024-11-08 14:48:40,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 14:48:40,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 14:48:40,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 14:48:40,448 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 14:48:40,449 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:48:40" (1/1) ... [2024-11-08 14:48:40,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:48:40,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:48:40,510 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) [2024-11-08 14:48:40,512 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 [2024-11-08 14:48:40,558 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2024-11-08 14:48:40,558 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2024-11-08 14:48:40,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 14:48:40,558 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-08 14:48:40,558 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-08 14:48:40,559 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-08 14:48:40,559 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-08 14:48:40,559 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-08 14:48:40,559 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-08 14:48:40,559 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-08 14:48:40,559 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-08 14:48:40,559 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-08 14:48:40,560 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-08 14:48:40,560 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 14:48:40,560 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 14:48:40,560 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 14:48:40,560 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 14:48:40,560 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-08 14:48:40,560 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-08 14:48:40,562 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-08 14:48:40,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-08 14:48:40,562 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-08 14:48:40,562 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-08 14:48:40,562 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-08 14:48:40,563 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-08 14:48:40,563 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-08 14:48:40,563 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-08 14:48:40,563 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-08 14:48:40,563 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-08 14:48:40,563 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-08 14:48:40,563 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-08 14:48:40,563 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-08 14:48:40,564 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-08 14:48:40,564 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-08 14:48:40,564 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-08 14:48:40,564 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-08 14:48:40,564 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-08 14:48:40,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 14:48:40,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 14:48:40,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 14:48:40,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 14:48:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 14:48:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 14:48:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 14:48:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-08 14:48:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-08 14:48:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-08 14:48:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-08 14:48:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-08 14:48:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-08 14:48:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-08 14:48:40,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-08 14:48:40,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-08 14:48:40,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-08 14:48:40,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-08 14:48:40,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-08 14:48:40,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-08 14:48:40,569 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-08 14:48:40,570 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-08 14:48:40,570 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-08 14:48:40,570 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-08 14:48:40,570 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-08 14:48:40,570 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-08 14:48:40,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 14:48:40,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 14:48:40,570 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-08 14:48:40,570 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-08 14:48:40,767 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 14:48:40,769 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 14:48:41,923 INFO L? ?]: Removed 427 outVars from TransFormulas that were not future-live. [2024-11-08 14:48:41,923 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 14:48:41,944 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 14:48:41,945 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 14:48:41,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:48:41 BoogieIcfgContainer [2024-11-08 14:48:41,945 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 14:48:41,947 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 14:48:41,947 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 14:48:41,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 14:48:41,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 02:48:39" (1/3) ... [2024-11-08 14:48:41,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aba051e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:48:41, skipping insertion in model container [2024-11-08 14:48:41,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:48:40" (2/3) ... [2024-11-08 14:48:41,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aba051e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:48:41, skipping insertion in model container [2024-11-08 14:48:41,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:48:41" (3/3) ... [2024-11-08 14:48:41,956 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product17.cil.c [2024-11-08 14:48:41,971 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 14:48:41,972 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 14:48:42,052 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 14:48:42,059 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;@72165c4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 14:48:42,060 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 14:48:42,066 INFO L276 IsEmpty]: Start isEmpty. Operand has 539 states, 424 states have (on average 1.705188679245283) internal successors, (723), 445 states have internal predecessors, (723), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-08 14:48:42,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 14:48:42,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:48:42,105 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2024-11-08 14:48:42,105 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:48:42,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:48:42,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1594208609, now seen corresponding path program 1 times [2024-11-08 14:48:42,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:48:42,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525886331] [2024-11-08 14:48:42,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:42,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:48:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:42,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:48:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:42,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:43,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:48:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:43,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:48:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:43,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:43,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:48:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:43,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 14:48:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:43,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:43,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:43,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:48:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:43,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:48:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:43,600 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:48:43,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:48:43,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525886331] [2024-11-08 14:48:43,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525886331] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:48:43,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558672830] [2024-11-08 14:48:43,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:43,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:48:43,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:48:43,607 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) [2024-11-08 14:48:43,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 14:48:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:44,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 14:48:44,037 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:48:44,060 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 14:48:44,060 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:48:44,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558672830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:48:44,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:48:44,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2024-11-08 14:48:44,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260988192] [2024-11-08 14:48:44,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:48:44,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 14:48:44,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:48:44,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 14:48:44,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:48:44,102 INFO L87 Difference]: Start difference. First operand has 539 states, 424 states have (on average 1.705188679245283) internal successors, (723), 445 states have internal predecessors, (723), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 14:48:44,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:48:44,184 INFO L93 Difference]: Finished difference Result 560 states and 935 transitions. [2024-11-08 14:48:44,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 14:48:44,186 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 97 [2024-11-08 14:48:44,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:48:44,204 INFO L225 Difference]: With dead ends: 560 [2024-11-08 14:48:44,204 INFO L226 Difference]: Without dead ends: 531 [2024-11-08 14:48:44,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:48:44,211 INFO L432 NwaCegarLoop]: 896 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:48:44,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:48:44,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-08 14:48:44,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-11-08 14:48:44,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 418 states have (on average 1.7033492822966507) internal successors, (712), 437 states have internal predecessors, (712), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:48:44,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 889 transitions. [2024-11-08 14:48:44,324 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 889 transitions. Word has length 97 [2024-11-08 14:48:44,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:48:44,328 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 889 transitions. [2024-11-08 14:48:44,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 14:48:44,328 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 889 transitions. [2024-11-08 14:48:44,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 14:48:44,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:48:44,334 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1] [2024-11-08 14:48:44,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 14:48:44,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-08 14:48:44,539 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:48:44,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:48:44,540 INFO L85 PathProgramCache]: Analyzing trace with hash -365707531, now seen corresponding path program 1 times [2024-11-08 14:48:44,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:48:44,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887802933] [2024-11-08 14:48:44,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:44,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:48:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:44,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:48:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:44,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:44,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:48:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:44,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:48:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:45,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:45,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:48:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:45,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 14:48:45,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:45,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:45,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:45,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:48:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:45,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:48:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:45,441 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:48:45,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:48:45,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887802933] [2024-11-08 14:48:45,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887802933] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:48:45,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000829706] [2024-11-08 14:48:45,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:45,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:48:45,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:48:45,445 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) [2024-11-08 14:48:45,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 14:48:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:45,809 INFO L255 TraceCheckSpWp]: Trace formula consists of 1773 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:48:45,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:48:45,884 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 14:48:45,884 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:48:45,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000829706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:48:45,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:48:45,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:48:45,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380360509] [2024-11-08 14:48:45,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:48:45,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:48:45,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:48:45,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:48:45,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:48:45,893 INFO L87 Difference]: Start difference. First operand 531 states and 889 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:48:45,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:48:45,989 INFO L93 Difference]: Finished difference Result 1053 states and 1770 transitions. [2024-11-08 14:48:45,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 14:48:45,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2024-11-08 14:48:45,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:48:45,996 INFO L225 Difference]: With dead ends: 1053 [2024-11-08 14:48:45,996 INFO L226 Difference]: Without dead ends: 531 [2024-11-08 14:48:46,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:48:46,007 INFO L432 NwaCegarLoop]: 877 mSDtfsCounter, 5 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2625 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:48:46,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2625 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:48:46,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-08 14:48:46,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-11-08 14:48:46,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 418 states have (on average 1.700956937799043) internal successors, (711), 437 states have internal predecessors, (711), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:48:46,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 888 transitions. [2024-11-08 14:48:46,081 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 888 transitions. Word has length 99 [2024-11-08 14:48:46,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:48:46,083 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 888 transitions. [2024-11-08 14:48:46,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:48:46,083 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 888 transitions. [2024-11-08 14:48:46,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 14:48:46,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:48:46,088 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1] [2024-11-08 14:48:46,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 14:48:46,288 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,SelfDestructingSolverStorable1 [2024-11-08 14:48:46,289 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:48:46,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:48:46,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1062806691, now seen corresponding path program 1 times [2024-11-08 14:48:46,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:48:46,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788271555] [2024-11-08 14:48:46,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:46,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:48:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:46,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:48:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:46,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:46,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:48:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:46,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 14:48:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:46,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:46,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:48:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:46,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 14:48:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:47,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:47,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:47,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:48:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:47,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:48:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:47,050 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:48:47,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:48:47,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788271555] [2024-11-08 14:48:47,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788271555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:48:47,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069905986] [2024-11-08 14:48:47,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:47,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:48:47,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:48:47,054 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) [2024-11-08 14:48:47,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 14:48:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:47,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 1775 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:48:47,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:48:47,415 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 14:48:47,415 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:48:47,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069905986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:48:47,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:48:47,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:48:47,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464503779] [2024-11-08 14:48:47,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:48:47,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:48:47,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:48:47,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:48:47,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:48:47,418 INFO L87 Difference]: Start difference. First operand 531 states and 888 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:48:47,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:48:47,484 INFO L93 Difference]: Finished difference Result 1053 states and 1768 transitions. [2024-11-08 14:48:47,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 14:48:47,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2024-11-08 14:48:47,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:48:47,490 INFO L225 Difference]: With dead ends: 1053 [2024-11-08 14:48:47,491 INFO L226 Difference]: Without dead ends: 531 [2024-11-08 14:48:47,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:48:47,496 INFO L432 NwaCegarLoop]: 877 mSDtfsCounter, 4 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2625 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:48:47,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2625 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:48:47,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-08 14:48:47,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-11-08 14:48:47,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 418 states have (on average 1.6985645933014355) internal successors, (710), 437 states have internal predecessors, (710), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:48:47,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 887 transitions. [2024-11-08 14:48:47,520 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 887 transitions. Word has length 101 [2024-11-08 14:48:47,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:48:47,520 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 887 transitions. [2024-11-08 14:48:47,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:48:47,520 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 887 transitions. [2024-11-08 14:48:47,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 14:48:47,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:48:47,523 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1] [2024-11-08 14:48:47,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 14:48:47,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:48:47,725 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:48:47,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:48:47,725 INFO L85 PathProgramCache]: Analyzing trace with hash -706454475, now seen corresponding path program 1 times [2024-11-08 14:48:47,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:48:47,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161276030] [2024-11-08 14:48:47,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:47,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:48:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:48,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:48:48,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:48,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:48,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:48:48,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:48,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 14:48:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:48,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:48,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:48:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:48,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 14:48:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:48,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:48,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:48,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:48:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:48,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:48:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:48,402 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:48:48,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:48:48,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161276030] [2024-11-08 14:48:48,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161276030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:48:48,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832143531] [2024-11-08 14:48:48,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:48,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:48:48,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:48:48,405 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:48:48,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 14:48:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:48,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:48:48,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:48:48,818 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 14:48:48,820 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:48:48,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832143531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:48:48,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:48:48,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:48:48,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523521643] [2024-11-08 14:48:48,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:48:48,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:48:48,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:48:48,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:48:48,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:48:48,825 INFO L87 Difference]: Start difference. First operand 531 states and 887 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:48:48,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:48:48,903 INFO L93 Difference]: Finished difference Result 1060 states and 1775 transitions. [2024-11-08 14:48:48,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:48:48,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2024-11-08 14:48:48,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:48:48,908 INFO L225 Difference]: With dead ends: 1060 [2024-11-08 14:48:48,908 INFO L226 Difference]: Without dead ends: 540 [2024-11-08 14:48:48,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:48:48,912 INFO L432 NwaCegarLoop]: 876 mSDtfsCounter, 13 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2622 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:48:48,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2622 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:48:48,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-08 14:48:48,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2024-11-08 14:48:48,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 426 states have (on average 1.6948356807511737) internal successors, (722), 445 states have internal predecessors, (722), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:48:48,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 899 transitions. [2024-11-08 14:48:48,944 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 899 transitions. Word has length 103 [2024-11-08 14:48:48,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:48:48,945 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 899 transitions. [2024-11-08 14:48:48,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:48:48,945 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 899 transitions. [2024-11-08 14:48:48,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 14:48:48,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:48:48,948 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2024-11-08 14:48:48,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 14:48:49,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:48:49,149 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:48:49,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:48:49,150 INFO L85 PathProgramCache]: Analyzing trace with hash -480058764, now seen corresponding path program 1 times [2024-11-08 14:48:49,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:48:49,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972854061] [2024-11-08 14:48:49,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:49,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:48:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:49,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:48:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:49,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:49,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 14:48:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:49,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:48:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:49,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:49,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:48:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:49,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 14:48:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:49,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:49,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:49,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:49,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:48:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:49,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:48:49,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:49,885 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:48:49,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:48:49,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972854061] [2024-11-08 14:48:49,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972854061] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:48:49,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753289663] [2024-11-08 14:48:49,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:49,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:48:49,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:48:49,888 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:48:49,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 14:48:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:50,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:48:50,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:48:50,229 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 14:48:50,229 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:48:50,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753289663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:48:50,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:48:50,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:48:50,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742073669] [2024-11-08 14:48:50,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:48:50,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:48:50,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:48:50,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:48:50,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:48:50,231 INFO L87 Difference]: Start difference. First operand 540 states and 899 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:48:50,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:48:50,302 INFO L93 Difference]: Finished difference Result 1062 states and 1776 transitions. [2024-11-08 14:48:50,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:48:50,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2024-11-08 14:48:50,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:48:50,307 INFO L225 Difference]: With dead ends: 1062 [2024-11-08 14:48:50,307 INFO L226 Difference]: Without dead ends: 540 [2024-11-08 14:48:50,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:48:50,310 INFO L432 NwaCegarLoop]: 876 mSDtfsCounter, 11 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2622 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:48:50,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2622 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:48:50,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-08 14:48:50,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2024-11-08 14:48:50,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 426 states have (on average 1.692488262910798) internal successors, (721), 445 states have internal predecessors, (721), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:48:50,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 898 transitions. [2024-11-08 14:48:50,330 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 898 transitions. Word has length 104 [2024-11-08 14:48:50,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:48:50,330 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 898 transitions. [2024-11-08 14:48:50,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:48:50,330 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 898 transitions. [2024-11-08 14:48:50,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 14:48:50,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:48:50,333 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2024-11-08 14:48:50,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 14:48:50,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:48:50,534 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:48:50,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:48:50,535 INFO L85 PathProgramCache]: Analyzing trace with hash 701773849, now seen corresponding path program 1 times [2024-11-08 14:48:50,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:48:50,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871521872] [2024-11-08 14:48:50,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:50,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:48:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:50,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:48:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:50,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:50,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:48:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:50,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 14:48:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:50,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:50,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:50,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:48:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:51,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 14:48:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:51,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:51,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:51,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:48:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:51,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:48:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:51,175 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:48:51,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:48:51,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871521872] [2024-11-08 14:48:51,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871521872] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:48:51,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396690375] [2024-11-08 14:48:51,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:51,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:48:51,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:48:51,178 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:48:51,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 14:48:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:51,489 INFO L255 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:48:51,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:48:51,526 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 14:48:51,526 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:48:51,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396690375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:48:51,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:48:51,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:48:51,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997208298] [2024-11-08 14:48:51,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:48:51,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:48:51,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:48:51,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:48:51,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:48:51,528 INFO L87 Difference]: Start difference. First operand 540 states and 898 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:48:51,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:48:51,600 INFO L93 Difference]: Finished difference Result 1062 states and 1775 transitions. [2024-11-08 14:48:51,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:48:51,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2024-11-08 14:48:51,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:48:51,605 INFO L225 Difference]: With dead ends: 1062 [2024-11-08 14:48:51,605 INFO L226 Difference]: Without dead ends: 540 [2024-11-08 14:48:51,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:48:51,609 INFO L432 NwaCegarLoop]: 876 mSDtfsCounter, 10 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2622 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:48:51,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2622 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:48:51,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-08 14:48:51,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2024-11-08 14:48:51,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 426 states have (on average 1.6901408450704225) internal successors, (720), 445 states have internal predecessors, (720), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:48:51,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 897 transitions. [2024-11-08 14:48:51,627 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 897 transitions. Word has length 105 [2024-11-08 14:48:51,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:48:51,627 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 897 transitions. [2024-11-08 14:48:51,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:48:51,628 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 897 transitions. [2024-11-08 14:48:51,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 14:48:51,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:48:51,648 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2024-11-08 14:48:51,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 14:48:51,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:48:51,850 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:48:51,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:48:51,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1437379352, now seen corresponding path program 1 times [2024-11-08 14:48:51,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:48:51,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036612872] [2024-11-08 14:48:51,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:51,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:48:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:52,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:48:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:52,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:52,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:48:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:52,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 14:48:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:52,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:52,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:48:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:52,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 14:48:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:52,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:52,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:52,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:48:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:52,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:48:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:52,602 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 14:48:52,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:48:52,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036612872] [2024-11-08 14:48:52,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036612872] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:48:52,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854130877] [2024-11-08 14:48:52,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:52,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:48:52,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:48:52,605 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:48:52,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 14:48:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:52,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 14:48:52,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:48:53,003 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:48:53,003 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:48:53,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854130877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:48:53,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:48:53,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-08 14:48:53,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879211035] [2024-11-08 14:48:53,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:48:53,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:48:53,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:48:53,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:48:53,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:48:53,006 INFO L87 Difference]: Start difference. First operand 540 states and 897 transitions. Second operand has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:48:53,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:48:53,103 INFO L93 Difference]: Finished difference Result 1081 states and 1805 transitions. [2024-11-08 14:48:53,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:48:53,103 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 106 [2024-11-08 14:48:53,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:48:53,108 INFO L225 Difference]: With dead ends: 1081 [2024-11-08 14:48:53,108 INFO L226 Difference]: Without dead ends: 563 [2024-11-08 14:48:53,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-08 14:48:53,110 INFO L432 NwaCegarLoop]: 877 mSDtfsCounter, 100 mSDsluCounter, 4299 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5176 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:48:53,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5176 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:48:53,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-11-08 14:48:53,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 559. [2024-11-08 14:48:53,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 442 states have (on average 1.6877828054298643) internal successors, (746), 463 states have internal predecessors, (746), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (90), 85 states have call predecessors, (90), 87 states have call successors, (90) [2024-11-08 14:48:53,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 928 transitions. [2024-11-08 14:48:53,130 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 928 transitions. Word has length 106 [2024-11-08 14:48:53,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:48:53,131 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 928 transitions. [2024-11-08 14:48:53,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:48:53,131 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 928 transitions. [2024-11-08 14:48:53,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 14:48:53,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:48:53,134 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2024-11-08 14:48:53,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 14:48:53,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:48:53,335 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:48:53,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:48:53,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1052012569, now seen corresponding path program 1 times [2024-11-08 14:48:53,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:48:53,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951870102] [2024-11-08 14:48:53,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:53,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:48:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:53,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:48:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:53,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:53,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:53,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:48:53,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:53,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 14:48:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:53,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:53,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:48:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:53,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 14:48:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:53,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:53,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:53,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:53,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:48:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:53,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:48:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:53,999 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 14:48:54,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:48:54,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951870102] [2024-11-08 14:48:54,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951870102] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:48:54,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552267487] [2024-11-08 14:48:54,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:54,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:48:54,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:48:54,002 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:48:54,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 14:48:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:54,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:48:54,366 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:48:54,395 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:48:54,397 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:48:54,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552267487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:48:54,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:48:54,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:48:54,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831148967] [2024-11-08 14:48:54,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:48:54,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:48:54,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:48:54,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:48:54,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:48:54,401 INFO L87 Difference]: Start difference. First operand 559 states and 928 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:48:54,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:48:54,537 INFO L93 Difference]: Finished difference Result 1137 states and 1906 transitions. [2024-11-08 14:48:54,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 14:48:54,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2024-11-08 14:48:54,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:48:54,542 INFO L225 Difference]: With dead ends: 1137 [2024-11-08 14:48:54,543 INFO L226 Difference]: Without dead ends: 574 [2024-11-08 14:48:54,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:48:54,546 INFO L432 NwaCegarLoop]: 851 mSDtfsCounter, 76 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 2513 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:48:54,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 2513 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:48:54,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-11-08 14:48:54,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 559. [2024-11-08 14:48:54,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 442 states have (on average 1.6764705882352942) internal successors, (741), 463 states have internal predecessors, (741), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (90), 85 states have call predecessors, (90), 87 states have call successors, (90) [2024-11-08 14:48:54,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 923 transitions. [2024-11-08 14:48:54,567 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 923 transitions. Word has length 106 [2024-11-08 14:48:54,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:48:54,567 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 923 transitions. [2024-11-08 14:48:54,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:48:54,567 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 923 transitions. [2024-11-08 14:48:54,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 14:48:54,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:48:54,570 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2024-11-08 14:48:54,590 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 14:48:54,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-08 14:48:54,775 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:48:54,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:48:54,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1192894943, now seen corresponding path program 1 times [2024-11-08 14:48:54,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:48:54,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185804770] [2024-11-08 14:48:54,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:54,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:48:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:55,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:48:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:55,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:55,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:48:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:55,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 14:48:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:55,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:55,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:48:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:55,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 14:48:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:55,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:55,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:55,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:48:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:55,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:48:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:55,417 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 14:48:55,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:48:55,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185804770] [2024-11-08 14:48:55,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185804770] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:48:55,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941078918] [2024-11-08 14:48:55,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:55,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:48:55,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:48:55,420 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:48:55,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 14:48:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:55,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:48:55,733 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:48:55,768 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:48:55,768 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:48:55,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941078918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:48:55,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:48:55,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:48:55,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62758980] [2024-11-08 14:48:55,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:48:55,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:48:55,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:48:55,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:48:55,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:48:55,770 INFO L87 Difference]: Start difference. First operand 559 states and 923 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:48:55,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:48:55,892 INFO L93 Difference]: Finished difference Result 1137 states and 1896 transitions. [2024-11-08 14:48:55,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 14:48:55,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2024-11-08 14:48:55,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:48:55,897 INFO L225 Difference]: With dead ends: 1137 [2024-11-08 14:48:55,897 INFO L226 Difference]: Without dead ends: 574 [2024-11-08 14:48:55,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:48:55,901 INFO L432 NwaCegarLoop]: 851 mSDtfsCounter, 75 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 2513 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:48:55,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 2513 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:48:55,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-11-08 14:48:55,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 559. [2024-11-08 14:48:55,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 442 states have (on average 1.665158371040724) internal successors, (736), 463 states have internal predecessors, (736), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (90), 85 states have call predecessors, (90), 87 states have call successors, (90) [2024-11-08 14:48:55,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 918 transitions. [2024-11-08 14:48:55,921 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 918 transitions. Word has length 108 [2024-11-08 14:48:55,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:48:55,922 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 918 transitions. [2024-11-08 14:48:55,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:48:55,922 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 918 transitions. [2024-11-08 14:48:55,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 14:48:55,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:48:55,925 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2024-11-08 14:48:55,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-08 14:48:56,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:48:56,126 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:48:56,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:48:56,127 INFO L85 PathProgramCache]: Analyzing trace with hash 973349433, now seen corresponding path program 1 times [2024-11-08 14:48:56,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:48:56,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053353304] [2024-11-08 14:48:56,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:56,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:48:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:56,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:48:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:56,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:56,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:48:56,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:56,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 14:48:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:56,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:56,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:48:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:56,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 14:48:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:56,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:56,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:56,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:48:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:56,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:48:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:56,799 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 14:48:56,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:48:56,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053353304] [2024-11-08 14:48:56,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053353304] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:48:56,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280347043] [2024-11-08 14:48:56,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:56,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:48:56,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:48:56,802 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:48:56,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 14:48:57,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:57,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 1783 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:48:57,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:48:57,175 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:48:57,175 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:48:57,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280347043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:48:57,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:48:57,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:48:57,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928001227] [2024-11-08 14:48:57,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:48:57,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:48:57,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:48:57,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:48:57,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:48:57,177 INFO L87 Difference]: Start difference. First operand 559 states and 918 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:48:57,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:48:57,349 INFO L93 Difference]: Finished difference Result 1188 states and 1968 transitions. [2024-11-08 14:48:57,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:48:57,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-11-08 14:48:57,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:48:57,355 INFO L225 Difference]: With dead ends: 1188 [2024-11-08 14:48:57,356 INFO L226 Difference]: Without dead ends: 655 [2024-11-08 14:48:57,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:48:57,359 INFO L432 NwaCegarLoop]: 884 mSDtfsCounter, 130 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:48:57,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 2544 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:48:57,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-08 14:48:57,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 610. [2024-11-08 14:48:57,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 492 states have (on average 1.66869918699187) internal successors, (821), 513 states have internal predecessors, (821), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (89), 85 states have call predecessors, (89), 87 states have call successors, (89) [2024-11-08 14:48:57,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 1002 transitions. [2024-11-08 14:48:57,384 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 1002 transitions. Word has length 110 [2024-11-08 14:48:57,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:48:57,387 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 1002 transitions. [2024-11-08 14:48:57,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:48:57,388 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 1002 transitions. [2024-11-08 14:48:57,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 14:48:57,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:48:57,390 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:48:57,411 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-08 14:48:57,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 14:48:57,591 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:48:57,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:48:57,591 INFO L85 PathProgramCache]: Analyzing trace with hash -806284545, now seen corresponding path program 1 times [2024-11-08 14:48:57,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:48:57,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475355832] [2024-11-08 14:48:57,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:57,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:48:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:57,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:48:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:57,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:57,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:48:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:57,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:48:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:58,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:58,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:48:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:58,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 14:48:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:58,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:58,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:58,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:48:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:58,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:48:58,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:58,329 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 14:48:58,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:48:58,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475355832] [2024-11-08 14:48:58,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475355832] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:48:58,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517271946] [2024-11-08 14:48:58,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:58,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:48:58,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:48:58,332 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:48:58,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 14:48:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:58,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 14:48:58,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:48:58,729 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:48:58,729 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:48:58,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517271946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:48:58,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:48:58,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 14 [2024-11-08 14:48:58,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541119509] [2024-11-08 14:48:58,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:48:58,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 14:48:58,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:48:58,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 14:48:58,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:48:58,731 INFO L87 Difference]: Start difference. First operand 610 states and 1002 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:48:58,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:48:58,910 INFO L93 Difference]: Finished difference Result 1150 states and 1897 transitions. [2024-11-08 14:48:58,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 14:48:58,911 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 111 [2024-11-08 14:48:58,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:48:58,916 INFO L225 Difference]: With dead ends: 1150 [2024-11-08 14:48:58,916 INFO L226 Difference]: Without dead ends: 632 [2024-11-08 14:48:58,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-08 14:48:58,920 INFO L432 NwaCegarLoop]: 857 mSDtfsCounter, 113 mSDsluCounter, 5053 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 5910 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:48:58,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 5910 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:48:58,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2024-11-08 14:48:58,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 610. [2024-11-08 14:48:58,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 492 states have (on average 1.66869918699187) internal successors, (821), 513 states have internal predecessors, (821), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (89), 85 states have call predecessors, (89), 87 states have call successors, (89) [2024-11-08 14:48:58,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 1002 transitions. [2024-11-08 14:48:58,948 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 1002 transitions. Word has length 111 [2024-11-08 14:48:58,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:48:58,949 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 1002 transitions. [2024-11-08 14:48:58,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:48:58,949 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 1002 transitions. [2024-11-08 14:48:58,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 14:48:58,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:48:58,954 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:48:58,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-08 14:48:59,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-08 14:48:59,155 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:48:59,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:48:59,155 INFO L85 PathProgramCache]: Analyzing trace with hash 996001823, now seen corresponding path program 1 times [2024-11-08 14:48:59,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:48:59,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447339250] [2024-11-08 14:48:59,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:59,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:48:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:59,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:48:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:59,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:59,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:48:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:59,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:48:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:59,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:59,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:48:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:59,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 14:48:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:59,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:59,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:48:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:59,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:48:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:59,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:48:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:48:59,804 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 14:48:59,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:48:59,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447339250] [2024-11-08 14:48:59,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447339250] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:48:59,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362780453] [2024-11-08 14:48:59,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:48:59,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:48:59,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:48:59,807 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:48:59,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 14:49:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:00,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 1784 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:49:00,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:00,150 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:49:00,151 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:00,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362780453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:00,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:00,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:49:00,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642871410] [2024-11-08 14:49:00,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:00,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:00,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:00,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:00,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:00,152 INFO L87 Difference]: Start difference. First operand 610 states and 1002 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:00,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:00,313 INFO L93 Difference]: Finished difference Result 1191 states and 1969 transitions. [2024-11-08 14:49:00,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:49:00,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-08 14:49:00,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:00,318 INFO L225 Difference]: With dead ends: 1191 [2024-11-08 14:49:00,318 INFO L226 Difference]: Without dead ends: 643 [2024-11-08 14:49:00,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:49:00,322 INFO L432 NwaCegarLoop]: 883 mSDtfsCounter, 124 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 2517 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:00,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 2517 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:49:00,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-11-08 14:49:00,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 610. [2024-11-08 14:49:00,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 492 states have (on average 1.6585365853658536) internal successors, (816), 513 states have internal predecessors, (816), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (89), 85 states have call predecessors, (89), 87 states have call successors, (89) [2024-11-08 14:49:00,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 997 transitions. [2024-11-08 14:49:00,340 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 997 transitions. Word has length 111 [2024-11-08 14:49:00,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:00,340 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 997 transitions. [2024-11-08 14:49:00,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:00,340 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 997 transitions. [2024-11-08 14:49:00,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 14:49:00,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:00,343 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:00,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:00,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 14:49:00,544 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:00,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:00,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1615772002, now seen corresponding path program 1 times [2024-11-08 14:49:00,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:00,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749577598] [2024-11-08 14:49:00,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:00,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:00,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:00,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:00,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:00,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:00,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:00,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:00,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:01,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 14:49:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:01,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:01,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:01,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:01,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:01,159 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 14:49:01,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:01,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749577598] [2024-11-08 14:49:01,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749577598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:01,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095643845] [2024-11-08 14:49:01,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:01,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:01,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:01,163 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:01,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 14:49:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:01,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 14:49:01,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:01,559 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 14:49:01,560 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:01,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095643845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:01,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:01,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-08 14:49:01,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862301330] [2024-11-08 14:49:01,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:01,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:49:01,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:01,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:49:01,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:49:01,562 INFO L87 Difference]: Start difference. First operand 610 states and 997 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:01,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:01,646 INFO L93 Difference]: Finished difference Result 1085 states and 1789 transitions. [2024-11-08 14:49:01,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:49:01,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 111 [2024-11-08 14:49:01,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:01,652 INFO L225 Difference]: With dead ends: 1085 [2024-11-08 14:49:01,652 INFO L226 Difference]: Without dead ends: 634 [2024-11-08 14:49:01,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-08 14:49:01,655 INFO L432 NwaCegarLoop]: 870 mSDtfsCounter, 86 mSDsluCounter, 4271 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 5141 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:01,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 5141 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:49:01,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2024-11-08 14:49:01,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 629. [2024-11-08 14:49:01,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 508 states have (on average 1.6574803149606299) internal successors, (842), 531 states have internal predecessors, (842), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-08 14:49:01,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1027 transitions. [2024-11-08 14:49:01,676 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1027 transitions. Word has length 111 [2024-11-08 14:49:01,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:01,676 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 1027 transitions. [2024-11-08 14:49:01,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:01,676 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1027 transitions. [2024-11-08 14:49:01,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 14:49:01,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:01,679 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:01,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:01,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-08 14:49:01,880 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:01,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:01,881 INFO L85 PathProgramCache]: Analyzing trace with hash -2082574163, now seen corresponding path program 1 times [2024-11-08 14:49:01,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:01,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231810063] [2024-11-08 14:49:01,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:01,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:01,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:02,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:02,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:02,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:02,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:02,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:02,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:02,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 14:49:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:02,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:02,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:02,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:02,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:02,544 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:49:02,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:02,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231810063] [2024-11-08 14:49:02,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231810063] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:02,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098495800] [2024-11-08 14:49:02,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:02,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:02,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:02,547 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:02,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-08 14:49:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:02,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 14:49:02,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:02,925 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 14:49:02,925 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:02,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098495800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:02,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:02,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-08 14:49:02,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869193283] [2024-11-08 14:49:02,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:02,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:49:02,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:02,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:49:02,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:49:02,928 INFO L87 Difference]: Start difference. First operand 629 states and 1027 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:03,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:03,007 INFO L93 Difference]: Finished difference Result 1115 states and 1840 transitions. [2024-11-08 14:49:03,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:49:03,008 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2024-11-08 14:49:03,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:03,013 INFO L225 Difference]: With dead ends: 1115 [2024-11-08 14:49:03,013 INFO L226 Difference]: Without dead ends: 664 [2024-11-08 14:49:03,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:49:03,016 INFO L432 NwaCegarLoop]: 870 mSDtfsCounter, 95 mSDsluCounter, 4261 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 5131 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:03,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 5131 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:03,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2024-11-08 14:49:03,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 629. [2024-11-08 14:49:03,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 508 states have (on average 1.6574803149606299) internal successors, (842), 531 states have internal predecessors, (842), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-08 14:49:03,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1027 transitions. [2024-11-08 14:49:03,038 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1027 transitions. Word has length 112 [2024-11-08 14:49:03,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:03,039 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 1027 transitions. [2024-11-08 14:49:03,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:03,039 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1027 transitions. [2024-11-08 14:49:03,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 14:49:03,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:03,042 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:03,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-08 14:49:03,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:03,243 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:03,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:03,243 INFO L85 PathProgramCache]: Analyzing trace with hash -744370899, now seen corresponding path program 1 times [2024-11-08 14:49:03,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:03,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614932435] [2024-11-08 14:49:03,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:03,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:03,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:03,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:03,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:03,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:03,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:03,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:03,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 14:49:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:03,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:03,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:03,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:03,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:03,874 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 14:49:03,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:03,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614932435] [2024-11-08 14:49:03,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614932435] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:03,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211191835] [2024-11-08 14:49:03,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:03,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:03,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:03,875 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:03,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-08 14:49:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:04,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 14:49:04,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:04,256 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 14:49:04,256 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:04,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211191835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:04,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:04,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-08 14:49:04,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463854398] [2024-11-08 14:49:04,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:04,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 14:49:04,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:04,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 14:49:04,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-11-08 14:49:04,258 INFO L87 Difference]: Start difference. First operand 629 states and 1027 transitions. Second operand has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:04,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:04,407 INFO L93 Difference]: Finished difference Result 1100 states and 1814 transitions. [2024-11-08 14:49:04,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 14:49:04,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2024-11-08 14:49:04,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:04,412 INFO L225 Difference]: With dead ends: 1100 [2024-11-08 14:49:04,412 INFO L226 Difference]: Without dead ends: 649 [2024-11-08 14:49:04,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2024-11-08 14:49:04,416 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 113 mSDsluCounter, 5059 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 5918 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:04,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 5918 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:49:04,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-11-08 14:49:04,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 629. [2024-11-08 14:49:04,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 508 states have (on average 1.6574803149606299) internal successors, (842), 531 states have internal predecessors, (842), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-08 14:49:04,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1027 transitions. [2024-11-08 14:49:04,437 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1027 transitions. Word has length 112 [2024-11-08 14:49:04,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:04,438 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 1027 transitions. [2024-11-08 14:49:04,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:04,438 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1027 transitions. [2024-11-08 14:49:04,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 14:49:04,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:04,441 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:04,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-08 14:49:04,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-08 14:49:04,642 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:04,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:04,642 INFO L85 PathProgramCache]: Analyzing trace with hash 461750229, now seen corresponding path program 1 times [2024-11-08 14:49:04,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:04,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401760292] [2024-11-08 14:49:04,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:04,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:04,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:04,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:04,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:04,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:05,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 14:49:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 14:49:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,304 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 14:49:05,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:05,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401760292] [2024-11-08 14:49:05,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401760292] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:05,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601723716] [2024-11-08 14:49:05,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:05,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:05,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:05,309 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:05,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-08 14:49:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:49:05,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:05,645 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 14:49:05,645 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:05,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601723716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:05,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:05,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-08 14:49:05,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519923146] [2024-11-08 14:49:05,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:05,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:05,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:05,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:05,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:49:05,646 INFO L87 Difference]: Start difference. First operand 629 states and 1027 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:05,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:05,687 INFO L93 Difference]: Finished difference Result 1152 states and 1899 transitions. [2024-11-08 14:49:05,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:49:05,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2024-11-08 14:49:05,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:05,691 INFO L225 Difference]: With dead ends: 1152 [2024-11-08 14:49:05,691 INFO L226 Difference]: Without dead ends: 629 [2024-11-08 14:49:05,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:49:05,694 INFO L432 NwaCegarLoop]: 865 mSDtfsCounter, 13 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2591 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:05,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2591 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:05,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-11-08 14:49:05,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 629. [2024-11-08 14:49:05,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 508 states have (on average 1.6496062992125984) internal successors, (838), 531 states have internal predecessors, (838), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-08 14:49:05,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1023 transitions. [2024-11-08 14:49:05,712 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1023 transitions. Word has length 112 [2024-11-08 14:49:05,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:05,712 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 1023 transitions. [2024-11-08 14:49:05,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:05,713 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1023 transitions. [2024-11-08 14:49:05,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 14:49:05,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:05,715 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:05,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-08 14:49:05,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-08 14:49:05,916 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:05,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:05,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1116279402, now seen corresponding path program 1 times [2024-11-08 14:49:05,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:05,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138417281] [2024-11-08 14:49:05,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:05,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:05,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 14:49:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,488 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:49:06,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:06,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138417281] [2024-11-08 14:49:06,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138417281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:06,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310896668] [2024-11-08 14:49:06,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:06,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:06,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:06,492 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:06,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-08 14:49:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 14:49:06,847 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:06,919 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 14:49:06,919 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:06,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310896668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:06,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:06,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-11-08 14:49:06,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087362848] [2024-11-08 14:49:06,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:06,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 14:49:06,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:06,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 14:49:06,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:49:06,921 INFO L87 Difference]: Start difference. First operand 629 states and 1023 transitions. Second operand has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:07,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:07,050 INFO L93 Difference]: Finished difference Result 1100 states and 1811 transitions. [2024-11-08 14:49:07,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 14:49:07,051 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 113 [2024-11-08 14:49:07,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:07,056 INFO L225 Difference]: With dead ends: 1100 [2024-11-08 14:49:07,056 INFO L226 Difference]: Without dead ends: 649 [2024-11-08 14:49:07,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-11-08 14:49:07,059 INFO L432 NwaCegarLoop]: 853 mSDtfsCounter, 121 mSDsluCounter, 5021 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 5874 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:07,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 5874 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:49:07,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-11-08 14:49:07,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 629. [2024-11-08 14:49:07,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 508 states have (on average 1.6496062992125984) internal successors, (838), 531 states have internal predecessors, (838), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-08 14:49:07,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1023 transitions. [2024-11-08 14:49:07,080 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1023 transitions. Word has length 113 [2024-11-08 14:49:07,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:07,080 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 1023 transitions. [2024-11-08 14:49:07,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:07,081 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1023 transitions. [2024-11-08 14:49:07,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 14:49:07,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:07,083 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:07,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:07,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-08 14:49:07,284 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:07,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:07,285 INFO L85 PathProgramCache]: Analyzing trace with hash -588544878, now seen corresponding path program 1 times [2024-11-08 14:49:07,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:07,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229621888] [2024-11-08 14:49:07,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:07,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:07,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:07,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:07,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:07,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:07,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:07,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:07,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 14:49:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:07,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:07,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:07,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:07,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:07,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:07,908 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:49:07,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:07,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229621888] [2024-11-08 14:49:07,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229621888] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:07,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093985526] [2024-11-08 14:49:07,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:07,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:07,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:07,911 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:07,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-08 14:49:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 14:49:08,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:08,291 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 14:49:08,291 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:08,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093985526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:08,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:08,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-08 14:49:08,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248846480] [2024-11-08 14:49:08,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:08,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:08,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:08,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:08,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:49:08,293 INFO L87 Difference]: Start difference. First operand 629 states and 1023 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:08,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:08,348 INFO L93 Difference]: Finished difference Result 1196 states and 1967 transitions. [2024-11-08 14:49:08,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 14:49:08,348 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 114 [2024-11-08 14:49:08,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:08,353 INFO L225 Difference]: With dead ends: 1196 [2024-11-08 14:49:08,353 INFO L226 Difference]: Without dead ends: 653 [2024-11-08 14:49:08,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:49:08,355 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 6 mSDsluCounter, 1705 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2564 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:08,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2564 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:08,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2024-11-08 14:49:08,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 653. [2024-11-08 14:49:08,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 532 states have (on average 1.6278195488721805) internal successors, (866), 555 states have internal predecessors, (866), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-08 14:49:08,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 1051 transitions. [2024-11-08 14:49:08,373 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 1051 transitions. Word has length 114 [2024-11-08 14:49:08,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:08,373 INFO L471 AbstractCegarLoop]: Abstraction has 653 states and 1051 transitions. [2024-11-08 14:49:08,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:08,373 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 1051 transitions. [2024-11-08 14:49:08,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 14:49:08,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:08,376 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:08,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-08 14:49:08,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-08 14:49:08,577 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:08,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:08,577 INFO L85 PathProgramCache]: Analyzing trace with hash 939496016, now seen corresponding path program 1 times [2024-11-08 14:49:08,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:08,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502080532] [2024-11-08 14:49:08,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:08,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 14:49:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,161 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 14:49:09,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:09,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502080532] [2024-11-08 14:49:09,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502080532] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:09,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914383278] [2024-11-08 14:49:09,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:09,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:09,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:09,163 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:09,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-08 14:49:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 1782 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 14:49:09,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:09,494 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 14:49:09,494 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:09,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914383278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:09,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:09,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-08 14:49:09,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001072281] [2024-11-08 14:49:09,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:09,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:09,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:09,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:09,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:49:09,496 INFO L87 Difference]: Start difference. First operand 653 states and 1051 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:09,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:09,519 INFO L93 Difference]: Finished difference Result 1101 states and 1806 transitions. [2024-11-08 14:49:09,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 14:49:09,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 114 [2024-11-08 14:49:09,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:09,524 INFO L225 Difference]: With dead ends: 1101 [2024-11-08 14:49:09,524 INFO L226 Difference]: Without dead ends: 655 [2024-11-08 14:49:09,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:49:09,526 INFO L432 NwaCegarLoop]: 873 mSDtfsCounter, 0 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:09,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2613 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:09,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-08 14:49:09,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 655. [2024-11-08 14:49:09,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 534 states have (on average 1.6254681647940075) internal successors, (868), 557 states have internal predecessors, (868), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-08 14:49:09,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 1053 transitions. [2024-11-08 14:49:09,544 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 1053 transitions. Word has length 114 [2024-11-08 14:49:09,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:09,544 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 1053 transitions. [2024-11-08 14:49:09,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:09,545 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 1053 transitions. [2024-11-08 14:49:09,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-08 14:49:09,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:09,547 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:09,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:09,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:09,748 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:09,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:09,748 INFO L85 PathProgramCache]: Analyzing trace with hash -266827908, now seen corresponding path program 1 times [2024-11-08 14:49:09,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:09,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817723616] [2024-11-08 14:49:09,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:09,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:09,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 14:49:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:49:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,265 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:49:10,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:10,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817723616] [2024-11-08 14:49:10,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817723616] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:10,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364795611] [2024-11-08 14:49:10,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:10,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:10,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:10,267 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:10,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-08 14:49:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 14:49:10,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:10,785 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 14:49:10,785 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:10,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364795611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:10,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:10,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2024-11-08 14:49:10,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037533817] [2024-11-08 14:49:10,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:10,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 14:49:10,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:10,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 14:49:10,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:49:10,788 INFO L87 Difference]: Start difference. First operand 655 states and 1053 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-08 14:49:14,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:14,048 INFO L93 Difference]: Finished difference Result 1791 states and 2974 transitions. [2024-11-08 14:49:14,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 14:49:14,048 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 117 [2024-11-08 14:49:14,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:14,057 INFO L225 Difference]: With dead ends: 1791 [2024-11-08 14:49:14,057 INFO L226 Difference]: Without dead ends: 1343 [2024-11-08 14:49:14,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2024-11-08 14:49:14,059 INFO L432 NwaCegarLoop]: 951 mSDtfsCounter, 2182 mSDsluCounter, 3580 mSDsCounter, 0 mSdLazyCounter, 5816 mSolverCounterSat, 480 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2306 SdHoareTripleChecker+Valid, 4531 SdHoareTripleChecker+Invalid, 6296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 480 IncrementalHoareTripleChecker+Valid, 5816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:14,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2306 Valid, 4531 Invalid, 6296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [480 Valid, 5816 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-08 14:49:14,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2024-11-08 14:49:14,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1324. [2024-11-08 14:49:14,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1048 states have (on average 1.6288167938931297) internal successors, (1707), 1095 states have internal predecessors, (1707), 218 states have call successors, (218), 44 states have call predecessors, (218), 57 states have return successors, (251), 215 states have call predecessors, (251), 213 states have call successors, (251) [2024-11-08 14:49:14,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 2176 transitions. [2024-11-08 14:49:14,111 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 2176 transitions. Word has length 117 [2024-11-08 14:49:14,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:14,112 INFO L471 AbstractCegarLoop]: Abstraction has 1324 states and 2176 transitions. [2024-11-08 14:49:14,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-08 14:49:14,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 2176 transitions. [2024-11-08 14:49:14,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-08 14:49:14,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:14,117 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:14,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:14,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:14,317 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:14,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:14,318 INFO L85 PathProgramCache]: Analyzing trace with hash -408092965, now seen corresponding path program 1 times [2024-11-08 14:49:14,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:14,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765593267] [2024-11-08 14:49:14,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:14,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 14:49:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:49:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 14:49:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,912 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 14:49:14,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:14,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765593267] [2024-11-08 14:49:14,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765593267] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:14,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163588572] [2024-11-08 14:49:14,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:14,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:14,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:14,915 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:14,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-08 14:49:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:15,235 INFO L255 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 14:49:15,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:15,281 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 14:49:15,282 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:15,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163588572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:15,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:15,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-08 14:49:15,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759413182] [2024-11-08 14:49:15,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:15,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 14:49:15,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:15,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 14:49:15,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:49:15,283 INFO L87 Difference]: Start difference. First operand 1324 states and 2176 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:15,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:15,660 INFO L93 Difference]: Finished difference Result 3287 states and 5540 transitions. [2024-11-08 14:49:15,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:49:15,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 118 [2024-11-08 14:49:15,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:15,677 INFO L225 Difference]: With dead ends: 3287 [2024-11-08 14:49:15,678 INFO L226 Difference]: Without dead ends: 2282 [2024-11-08 14:49:15,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:49:15,685 INFO L432 NwaCegarLoop]: 1353 mSDtfsCounter, 715 mSDsluCounter, 3393 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 4746 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:15,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 4746 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 14:49:15,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2024-11-08 14:49:15,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2263. [2024-11-08 14:49:15,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2263 states, 1763 states have (on average 1.6369824163357913) internal successors, (2886), 1844 states have internal predecessors, (2886), 401 states have call successors, (401), 80 states have call predecessors, (401), 98 states have return successors, (472), 400 states have call predecessors, (472), 396 states have call successors, (472) [2024-11-08 14:49:15,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2263 states to 2263 states and 3759 transitions. [2024-11-08 14:49:15,777 INFO L78 Accepts]: Start accepts. Automaton has 2263 states and 3759 transitions. Word has length 118 [2024-11-08 14:49:15,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:15,778 INFO L471 AbstractCegarLoop]: Abstraction has 2263 states and 3759 transitions. [2024-11-08 14:49:15,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:15,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2263 states and 3759 transitions. [2024-11-08 14:49:15,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 14:49:15,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:15,787 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:15,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-08 14:49:15,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:15,988 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:15,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:15,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1535898628, now seen corresponding path program 1 times [2024-11-08 14:49:15,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:15,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800751433] [2024-11-08 14:49:15,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:15,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:49:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 14:49:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:16,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:49:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,599 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 14:49:16,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:16,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800751433] [2024-11-08 14:49:16,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800751433] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:16,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6385344] [2024-11-08 14:49:16,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:16,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:16,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:16,602 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:16,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-08 14:49:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 14:49:16,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:16,963 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 14:49:16,963 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:16,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6385344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:16,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:16,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2024-11-08 14:49:16,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081779803] [2024-11-08 14:49:16,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:16,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:16,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:16,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:16,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:49:16,965 INFO L87 Difference]: Start difference. First operand 2263 states and 3759 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:17,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:17,067 INFO L93 Difference]: Finished difference Result 4364 states and 7299 transitions. [2024-11-08 14:49:17,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 14:49:17,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 120 [2024-11-08 14:49:17,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:17,081 INFO L225 Difference]: With dead ends: 4364 [2024-11-08 14:49:17,081 INFO L226 Difference]: Without dead ends: 2299 [2024-11-08 14:49:17,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:49:17,091 INFO L432 NwaCegarLoop]: 858 mSDtfsCounter, 5 mSDsluCounter, 1705 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2563 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:17,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2563 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:17,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2299 states. [2024-11-08 14:49:17,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2299 to 2281. [2024-11-08 14:49:17,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2281 states, 1781 states have (on average 1.6372824256035934) internal successors, (2916), 1862 states have internal predecessors, (2916), 401 states have call successors, (401), 80 states have call predecessors, (401), 98 states have return successors, (472), 400 states have call predecessors, (472), 396 states have call successors, (472) [2024-11-08 14:49:17,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 3789 transitions. [2024-11-08 14:49:17,217 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 3789 transitions. Word has length 120 [2024-11-08 14:49:17,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:17,217 INFO L471 AbstractCegarLoop]: Abstraction has 2281 states and 3789 transitions. [2024-11-08 14:49:17,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:17,218 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 3789 transitions. [2024-11-08 14:49:17,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 14:49:17,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:17,227 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:17,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-08 14:49:17,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:17,430 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:17,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:17,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1928608450, now seen corresponding path program 1 times [2024-11-08 14:49:17,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:17,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286186392] [2024-11-08 14:49:17,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:17,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:17,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:17,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:17,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:17,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:17,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:49:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:17,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:17,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:49:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:49:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,108 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:49:18,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:18,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286186392] [2024-11-08 14:49:18,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286186392] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:18,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797520269] [2024-11-08 14:49:18,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:18,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:18,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:18,110 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:18,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-08 14:49:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 1798 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 14:49:18,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:18,528 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 14:49:18,528 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:18,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797520269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:18,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:18,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 21 [2024-11-08 14:49:18,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556160555] [2024-11-08 14:49:18,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:18,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 14:49:18,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:18,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 14:49:18,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2024-11-08 14:49:18,531 INFO L87 Difference]: Start difference. First operand 2281 states and 3789 transitions. Second operand has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:18,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:18,730 INFO L93 Difference]: Finished difference Result 4306 states and 7194 transitions. [2024-11-08 14:49:18,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 14:49:18,731 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2024-11-08 14:49:18,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:18,744 INFO L225 Difference]: With dead ends: 4306 [2024-11-08 14:49:18,744 INFO L226 Difference]: Without dead ends: 2351 [2024-11-08 14:49:18,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2024-11-08 14:49:18,755 INFO L432 NwaCegarLoop]: 853 mSDtfsCounter, 89 mSDsluCounter, 5042 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 5895 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:18,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 5895 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:49:18,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2351 states. [2024-11-08 14:49:18,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2351 to 2284. [2024-11-08 14:49:18,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2284 states, 1783 states have (on average 1.6360067302299495) internal successors, (2917), 1865 states have internal predecessors, (2917), 401 states have call successors, (401), 80 states have call predecessors, (401), 99 states have return successors, (473), 400 states have call predecessors, (473), 396 states have call successors, (473) [2024-11-08 14:49:18,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 3791 transitions. [2024-11-08 14:49:18,881 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 3791 transitions. Word has length 121 [2024-11-08 14:49:18,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:18,881 INFO L471 AbstractCegarLoop]: Abstraction has 2284 states and 3791 transitions. [2024-11-08 14:49:18,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:18,883 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 3791 transitions. [2024-11-08 14:49:18,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 14:49:18,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:18,892 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:18,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:19,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:19,093 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:19,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:19,094 INFO L85 PathProgramCache]: Analyzing trace with hash 232815680, now seen corresponding path program 1 times [2024-11-08 14:49:19,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:19,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964018016] [2024-11-08 14:49:19,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:19,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:49:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:49:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:19,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:49:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,657 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 14:49:19,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:19,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964018016] [2024-11-08 14:49:19,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964018016] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:19,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491923262] [2024-11-08 14:49:19,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:19,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:19,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:19,660 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:19,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-08 14:49:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 1801 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 14:49:19,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:20,119 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-08 14:49:20,119 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:20,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491923262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:20,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:20,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2024-11-08 14:49:20,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755909184] [2024-11-08 14:49:20,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:20,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 14:49:20,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:20,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 14:49:20,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:49:20,121 INFO L87 Difference]: Start difference. First operand 2284 states and 3791 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 14:49:20,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:20,549 INFO L93 Difference]: Finished difference Result 2497 states and 4145 transitions. [2024-11-08 14:49:20,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:49:20,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 121 [2024-11-08 14:49:20,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:20,566 INFO L225 Difference]: With dead ends: 2497 [2024-11-08 14:49:20,567 INFO L226 Difference]: Without dead ends: 2480 [2024-11-08 14:49:20,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:49:20,569 INFO L432 NwaCegarLoop]: 865 mSDtfsCounter, 857 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:20,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 2247 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 14:49:20,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2024-11-08 14:49:20,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 2302. [2024-11-08 14:49:20,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 1801 states have (on average 1.6296501943364798) internal successors, (2935), 1883 states have internal predecessors, (2935), 401 states have call successors, (401), 80 states have call predecessors, (401), 99 states have return successors, (473), 400 states have call predecessors, (473), 396 states have call successors, (473) [2024-11-08 14:49:20,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 3809 transitions. [2024-11-08 14:49:20,654 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 3809 transitions. Word has length 121 [2024-11-08 14:49:20,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:20,654 INFO L471 AbstractCegarLoop]: Abstraction has 2302 states and 3809 transitions. [2024-11-08 14:49:20,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 14:49:20,655 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 3809 transitions. [2024-11-08 14:49:20,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 14:49:20,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:20,663 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:20,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:20,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:20,864 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:20,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:20,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1691028997, now seen corresponding path program 1 times [2024-11-08 14:49:20,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:20,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895059805] [2024-11-08 14:49:20,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:20,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:49:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:49:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:49:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 14:49:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,470 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 14:49:21,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:21,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895059805] [2024-11-08 14:49:21,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895059805] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:21,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798722105] [2024-11-08 14:49:21,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:21,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:21,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:21,472 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:21,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-08 14:49:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,797 INFO L255 TraceCheckSpWp]: Trace formula consists of 1817 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 14:49:21,800 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:21,826 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-08 14:49:21,826 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:21,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798722105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:21,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:21,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-08 14:49:21,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773234483] [2024-11-08 14:49:21,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:21,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 14:49:21,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:21,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 14:49:21,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:49:21,827 INFO L87 Difference]: Start difference. First operand 2302 states and 3809 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 14:49:21,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:21,875 INFO L93 Difference]: Finished difference Result 2319 states and 3829 transitions. [2024-11-08 14:49:21,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:49:21,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) Word has length 127 [2024-11-08 14:49:21,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:21,912 INFO L225 Difference]: With dead ends: 2319 [2024-11-08 14:49:21,913 INFO L226 Difference]: Without dead ends: 2302 [2024-11-08 14:49:21,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:49:21,914 INFO L432 NwaCegarLoop]: 872 mSDtfsCounter, 0 mSDsluCounter, 2612 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3484 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:21,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3484 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:21,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2024-11-08 14:49:21,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2302. [2024-11-08 14:49:21,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 1801 states have (on average 1.626318711826763) internal successors, (2929), 1883 states have internal predecessors, (2929), 401 states have call successors, (401), 80 states have call predecessors, (401), 99 states have return successors, (473), 400 states have call predecessors, (473), 396 states have call successors, (473) [2024-11-08 14:49:21,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 3803 transitions. [2024-11-08 14:49:21,985 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 3803 transitions. Word has length 127 [2024-11-08 14:49:21,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:21,986 INFO L471 AbstractCegarLoop]: Abstraction has 2302 states and 3803 transitions. [2024-11-08 14:49:21,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 14:49:21,986 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 3803 transitions. [2024-11-08 14:49:21,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-08 14:49:21,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:21,996 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:22,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-08 14:49:22,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-08 14:49:22,197 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:22,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:22,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1168795695, now seen corresponding path program 1 times [2024-11-08 14:49:22,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:22,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736062851] [2024-11-08 14:49:22,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:22,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:22,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:49:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:49:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:49:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 14:49:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 14:49:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,761 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 14:49:22,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:22,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736062851] [2024-11-08 14:49:22,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736062851] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:22,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965700188] [2024-11-08 14:49:22,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:22,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:22,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:22,764 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:22,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-08 14:49:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:23,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 1854 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 14:49:23,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:23,165 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 14:49:23,165 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:23,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965700188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:23,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:23,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-08 14:49:23,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744634071] [2024-11-08 14:49:23,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:23,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:49:23,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:23,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:49:23,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:49:23,167 INFO L87 Difference]: Start difference. First operand 2302 states and 3803 transitions. Second operand has 7 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:49:23,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:23,296 INFO L93 Difference]: Finished difference Result 4459 states and 7399 transitions. [2024-11-08 14:49:23,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:49:23,297 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 138 [2024-11-08 14:49:23,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:23,313 INFO L225 Difference]: With dead ends: 4459 [2024-11-08 14:49:23,313 INFO L226 Difference]: Without dead ends: 2382 [2024-11-08 14:49:23,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:49:23,324 INFO L432 NwaCegarLoop]: 863 mSDtfsCounter, 119 mSDsluCounter, 4213 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 5076 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:23,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 5076 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:23,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2382 states. [2024-11-08 14:49:23,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 2302. [2024-11-08 14:49:23,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 1801 states have (on average 1.626318711826763) internal successors, (2929), 1883 states have internal predecessors, (2929), 401 states have call successors, (401), 80 states have call predecessors, (401), 99 states have return successors, (473), 400 states have call predecessors, (473), 396 states have call successors, (473) [2024-11-08 14:49:23,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 3803 transitions. [2024-11-08 14:49:23,428 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 3803 transitions. Word has length 138 [2024-11-08 14:49:23,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:23,429 INFO L471 AbstractCegarLoop]: Abstraction has 2302 states and 3803 transitions. [2024-11-08 14:49:23,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:49:23,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 3803 transitions. [2024-11-08 14:49:23,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-08 14:49:23,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:23,438 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:23,457 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-08 14:49:23,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-08 14:49:23,639 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:23,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:23,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1825862916, now seen corresponding path program 1 times [2024-11-08 14:49:23,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:23,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589054454] [2024-11-08 14:49:23,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:23,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:23,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:23,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:23,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:23,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:23,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:23,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 14:49:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:49:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 14:49:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 14:49:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 14:49:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,210 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 14:49:24,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:24,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589054454] [2024-11-08 14:49:24,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589054454] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:24,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721955227] [2024-11-08 14:49:24,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:24,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:24,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:24,212 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:24,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-08 14:49:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 1855 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 14:49:24,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:24,582 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 14:49:24,582 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:24,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721955227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:24,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:24,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2024-11-08 14:49:24,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243523745] [2024-11-08 14:49:24,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:24,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:24,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:24,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:24,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:49:24,584 INFO L87 Difference]: Start difference. First operand 2302 states and 3803 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:49:24,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:24,677 INFO L93 Difference]: Finished difference Result 4466 states and 7408 transitions. [2024-11-08 14:49:24,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:49:24,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 138 [2024-11-08 14:49:24,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:24,694 INFO L225 Difference]: With dead ends: 4466 [2024-11-08 14:49:24,694 INFO L226 Difference]: Without dead ends: 2132 [2024-11-08 14:49:24,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 14:49:24,702 INFO L432 NwaCegarLoop]: 866 mSDtfsCounter, 7 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2591 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:24,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2591 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:24,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states. [2024-11-08 14:49:24,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 2132. [2024-11-08 14:49:24,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2132 states, 1646 states have (on average 1.6330498177399757) internal successors, (2688), 1722 states have internal predecessors, (2688), 396 states have call successors, (396), 77 states have call predecessors, (396), 89 states have return successors, (459), 394 states have call predecessors, (459), 391 states have call successors, (459) [2024-11-08 14:49:24,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 3543 transitions. [2024-11-08 14:49:24,822 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 3543 transitions. Word has length 138 [2024-11-08 14:49:24,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:24,822 INFO L471 AbstractCegarLoop]: Abstraction has 2132 states and 3543 transitions. [2024-11-08 14:49:24,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:49:24,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 3543 transitions. [2024-11-08 14:49:24,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 14:49:24,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:24,832 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:24,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:25,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-08 14:49:25,033 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:25,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:25,034 INFO L85 PathProgramCache]: Analyzing trace with hash -713032652, now seen corresponding path program 1 times [2024-11-08 14:49:25,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:25,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328945902] [2024-11-08 14:49:25,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:25,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:25,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 14:49:25,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 14:49:25,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:49:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 14:49:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 14:49:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,643 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:49:25,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:25,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328945902] [2024-11-08 14:49:25,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328945902] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:25,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753032846] [2024-11-08 14:49:25,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:25,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:25,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:25,646 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:25,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-08 14:49:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 1860 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:49:25,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:26,016 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 14:49:26,016 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:26,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753032846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:26,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:26,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:49:26,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558595909] [2024-11-08 14:49:26,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:26,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:26,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:26,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:26,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:26,017 INFO L87 Difference]: Start difference. First operand 2132 states and 3543 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:49:26,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:26,120 INFO L93 Difference]: Finished difference Result 4266 states and 7099 transitions. [2024-11-08 14:49:26,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:49:26,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (14), 2 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 140 [2024-11-08 14:49:26,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:26,135 INFO L225 Difference]: With dead ends: 4266 [2024-11-08 14:49:26,136 INFO L226 Difference]: Without dead ends: 2165 [2024-11-08 14:49:26,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:49:26,144 INFO L432 NwaCegarLoop]: 849 mSDtfsCounter, 128 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2470 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:26,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 2470 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:49:26,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2024-11-08 14:49:26,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 2132. [2024-11-08 14:49:26,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2132 states, 1646 states have (on average 1.6324422843256379) internal successors, (2687), 1722 states have internal predecessors, (2687), 396 states have call successors, (396), 77 states have call predecessors, (396), 89 states have return successors, (459), 394 states have call predecessors, (459), 391 states have call successors, (459) [2024-11-08 14:49:26,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 3542 transitions. [2024-11-08 14:49:26,215 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 3542 transitions. Word has length 140 [2024-11-08 14:49:26,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:26,215 INFO L471 AbstractCegarLoop]: Abstraction has 2132 states and 3542 transitions. [2024-11-08 14:49:26,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:49:26,215 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 3542 transitions. [2024-11-08 14:49:26,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-08 14:49:26,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:26,222 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:26,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-08 14:49:26,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-08 14:49:26,423 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:26,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:26,423 INFO L85 PathProgramCache]: Analyzing trace with hash 696289054, now seen corresponding path program 1 times [2024-11-08 14:49:26,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:26,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522007571] [2024-11-08 14:49:26,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:26,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:26,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:26,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:26,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:26,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:26,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:49:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:26,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:26,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:27,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 14:49:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:27,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:27,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:27,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:27,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:49:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:27,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 14:49:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:27,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 14:49:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:27,175 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:49:27,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:27,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522007571] [2024-11-08 14:49:27,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522007571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:27,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:49:27,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 14:49:27,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078693210] [2024-11-08 14:49:27,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:27,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 14:49:27,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:27,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 14:49:27,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:49:27,177 INFO L87 Difference]: Start difference. First operand 2132 states and 3542 transitions. Second operand has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 8 states have internal predecessors, (106), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:49:34,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:34,843 INFO L93 Difference]: Finished difference Result 5375 states and 9227 transitions. [2024-11-08 14:49:34,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 14:49:34,844 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 8 states have internal predecessors, (106), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 141 [2024-11-08 14:49:34,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:34,866 INFO L225 Difference]: With dead ends: 5375 [2024-11-08 14:49:34,866 INFO L226 Difference]: Without dead ends: 3289 [2024-11-08 14:49:34,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=115, Invalid=587, Unknown=0, NotChecked=0, Total=702 [2024-11-08 14:49:34,880 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 1392 mSDsluCounter, 3900 mSDsCounter, 0 mSdLazyCounter, 7491 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1468 SdHoareTripleChecker+Valid, 4350 SdHoareTripleChecker+Invalid, 7852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 7491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:34,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1468 Valid, 4350 Invalid, 7852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [361 Valid, 7491 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-08 14:49:34,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3289 states. [2024-11-08 14:49:35,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3289 to 2212. [2024-11-08 14:49:35,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2212 states, 1710 states have (on average 1.6263157894736842) internal successors, (2781), 1786 states have internal predecessors, (2781), 406 states have call successors, (406), 77 states have call predecessors, (406), 95 states have return successors, (486), 408 states have call predecessors, (486), 401 states have call successors, (486) [2024-11-08 14:49:35,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2212 states to 2212 states and 3673 transitions. [2024-11-08 14:49:35,309 INFO L78 Accepts]: Start accepts. Automaton has 2212 states and 3673 transitions. Word has length 141 [2024-11-08 14:49:35,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:35,309 INFO L471 AbstractCegarLoop]: Abstraction has 2212 states and 3673 transitions. [2024-11-08 14:49:35,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 8 states have internal predecessors, (106), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:49:35,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2212 states and 3673 transitions. [2024-11-08 14:49:35,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 14:49:35,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:35,317 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:35,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 14:49:35,317 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:35,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:35,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1967551053, now seen corresponding path program 1 times [2024-11-08 14:49:35,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:35,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109083024] [2024-11-08 14:49:35,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:35,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:49:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 14:49:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:49:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 14:49:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:49:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-08 14:49:35,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,905 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 14:49:35,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:35,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109083024] [2024-11-08 14:49:35,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109083024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:35,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:49:35,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:49:35,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407842282] [2024-11-08 14:49:35,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:35,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:49:35,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:35,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:49:35,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:49:35,909 INFO L87 Difference]: Start difference. First operand 2212 states and 3673 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 4 states have internal predecessors, (111), 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) [2024-11-08 14:49:40,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:40,807 INFO L93 Difference]: Finished difference Result 3735 states and 6255 transitions. [2024-11-08 14:49:40,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:49:40,808 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 4 states have internal predecessors, (111), 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 145 [2024-11-08 14:49:40,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:40,816 INFO L225 Difference]: With dead ends: 3735 [2024-11-08 14:49:40,817 INFO L226 Difference]: Without dead ends: 1537 [2024-11-08 14:49:40,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:49:40,823 INFO L432 NwaCegarLoop]: 457 mSDtfsCounter, 921 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 2974 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 1798 SdHoareTripleChecker+Invalid, 3175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 2974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:40,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 1798 Invalid, 3175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 2974 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-08 14:49:40,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1537 states. [2024-11-08 14:49:41,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1537 to 1021. [2024-11-08 14:49:41,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 809 states have (on average 1.6205191594561186) internal successors, (1311), 842 states have internal predecessors, (1311), 167 states have call successors, (167), 42 states have call predecessors, (167), 44 states have return successors, (179), 161 states have call predecessors, (179), 162 states have call successors, (179) [2024-11-08 14:49:41,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1657 transitions. [2024-11-08 14:49:41,129 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1657 transitions. Word has length 145 [2024-11-08 14:49:41,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:41,130 INFO L471 AbstractCegarLoop]: Abstraction has 1021 states and 1657 transitions. [2024-11-08 14:49:41,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 4 states have internal predecessors, (111), 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) [2024-11-08 14:49:41,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1657 transitions. [2024-11-08 14:49:41,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-08 14:49:41,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:41,133 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:41,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 14:49:41,134 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:41,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:41,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1783603339, now seen corresponding path program 1 times [2024-11-08 14:49:41,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:41,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023259236] [2024-11-08 14:49:41,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:41,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:41,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:41,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:41,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:41,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:41,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:49:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:41,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:41,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:41,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 14:49:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:41,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:41,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:41,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:41,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 14:49:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:41,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 14:49:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:41,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 14:49:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:41,824 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 14:49:41,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:41,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023259236] [2024-11-08 14:49:41,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023259236] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:41,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223581992] [2024-11-08 14:49:41,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:41,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:41,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:41,827 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:41,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-08 14:49:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:42,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 1866 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 14:49:42,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:42,231 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 14:49:42,231 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:42,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223581992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:42,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:42,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 10 [2024-11-08 14:49:42,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294909574] [2024-11-08 14:49:42,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:42,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 14:49:42,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:42,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 14:49:42,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:49:42,233 INFO L87 Difference]: Start difference. First operand 1021 states and 1657 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:49:42,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:42,602 INFO L93 Difference]: Finished difference Result 2697 states and 4463 transitions. [2024-11-08 14:49:42,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 14:49:42,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 146 [2024-11-08 14:49:42,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:42,610 INFO L225 Difference]: With dead ends: 2697 [2024-11-08 14:49:42,611 INFO L226 Difference]: Without dead ends: 1793 [2024-11-08 14:49:42,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:49:42,614 INFO L432 NwaCegarLoop]: 940 mSDtfsCounter, 785 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1604 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:42,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1604 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:49:42,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2024-11-08 14:49:42,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1778. [2024-11-08 14:49:42,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1778 states, 1393 states have (on average 1.6195262024407753) internal successors, (2256), 1451 states have internal predecessors, (2256), 306 states have call successors, (306), 76 states have call predecessors, (306), 78 states have return successors, (339), 299 states have call predecessors, (339), 301 states have call successors, (339) [2024-11-08 14:49:42,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1778 states to 1778 states and 2901 transitions. [2024-11-08 14:49:42,878 INFO L78 Accepts]: Start accepts. Automaton has 1778 states and 2901 transitions. Word has length 146 [2024-11-08 14:49:42,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:42,879 INFO L471 AbstractCegarLoop]: Abstraction has 1778 states and 2901 transitions. [2024-11-08 14:49:42,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:49:42,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states and 2901 transitions. [2024-11-08 14:49:42,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 14:49:42,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:42,882 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:42,902 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-08 14:49:43,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:43,083 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:43,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:43,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1299618357, now seen corresponding path program 1 times [2024-11-08 14:49:43,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:43,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421134890] [2024-11-08 14:49:43,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:43,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:43,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:43,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:43,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:43,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:49:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:43,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:43,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:43,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 14:49:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:43,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:43,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:43,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:43,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:43,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:49:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:43,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 14:49:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:43,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 14:49:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:43,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 14:49:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:43,800 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 14:49:43,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:43,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421134890] [2024-11-08 14:49:43,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421134890] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:43,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058673668] [2024-11-08 14:49:43,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:43,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:43,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:43,803 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:43,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-08 14:49:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:44,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 1888 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 14:49:44,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:44,180 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 14:49:44,180 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:44,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058673668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:44,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:44,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 9 [2024-11-08 14:49:44,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846404688] [2024-11-08 14:49:44,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:44,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 14:49:44,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:44,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 14:49:44,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:44,181 INFO L87 Difference]: Start difference. First operand 1778 states and 2901 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-08 14:49:44,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:44,776 INFO L93 Difference]: Finished difference Result 4959 states and 8219 transitions. [2024-11-08 14:49:44,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 14:49:44,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 151 [2024-11-08 14:49:44,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:44,793 INFO L225 Difference]: With dead ends: 4959 [2024-11-08 14:49:44,793 INFO L226 Difference]: Without dead ends: 3311 [2024-11-08 14:49:44,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:44,800 INFO L432 NwaCegarLoop]: 808 mSDtfsCounter, 847 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:44,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 1438 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:49:44,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3311 states. [2024-11-08 14:49:45,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3311 to 3293. [2024-11-08 14:49:45,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3293 states, 2562 states have (on average 1.6311475409836065) internal successors, (4179), 2674 states have internal predecessors, (4179), 584 states have call successors, (584), 144 states have call predecessors, (584), 146 states have return successors, (672), 572 states have call predecessors, (672), 579 states have call successors, (672) [2024-11-08 14:49:45,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3293 states to 3293 states and 5435 transitions. [2024-11-08 14:49:45,416 INFO L78 Accepts]: Start accepts. Automaton has 3293 states and 5435 transitions. Word has length 151 [2024-11-08 14:49:45,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:45,416 INFO L471 AbstractCegarLoop]: Abstraction has 3293 states and 5435 transitions. [2024-11-08 14:49:45,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-08 14:49:45,417 INFO L276 IsEmpty]: Start isEmpty. Operand 3293 states and 5435 transitions. [2024-11-08 14:49:45,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-08 14:49:45,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:45,420 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:45,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-08 14:49:45,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-08 14:49:45,621 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:45,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:45,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1386233081, now seen corresponding path program 1 times [2024-11-08 14:49:45,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:45,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607719793] [2024-11-08 14:49:45,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:45,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:45,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:45,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:45,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:45,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:49:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:45,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:45,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 14:49:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:49:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 14:49:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 14:49:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 14:49:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,380 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 14:49:46,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:46,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607719793] [2024-11-08 14:49:46,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607719793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:46,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715564194] [2024-11-08 14:49:46,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:46,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:46,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:46,382 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:46,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-08 14:49:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,749 INFO L255 TraceCheckSpWp]: Trace formula consists of 1892 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:49:46,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:46,783 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 14:49:46,783 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:46,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715564194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:46,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:46,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2024-11-08 14:49:46,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637574897] [2024-11-08 14:49:46,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:46,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:46,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:46,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:46,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:49:46,785 INFO L87 Difference]: Start difference. First operand 3293 states and 5435 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-08 14:49:47,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:47,411 INFO L93 Difference]: Finished difference Result 5945 states and 9949 transitions. [2024-11-08 14:49:47,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:49:47,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 154 [2024-11-08 14:49:47,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:47,436 INFO L225 Difference]: With dead ends: 5945 [2024-11-08 14:49:47,436 INFO L226 Difference]: Without dead ends: 3311 [2024-11-08 14:49:47,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:49:47,451 INFO L432 NwaCegarLoop]: 872 mSDtfsCounter, 313 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:47,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 2425 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:49:47,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3311 states. [2024-11-08 14:49:48,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3311 to 3293. [2024-11-08 14:49:48,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3293 states, 2562 states have (on average 1.624512099921936) internal successors, (4162), 2674 states have internal predecessors, (4162), 584 states have call successors, (584), 144 states have call predecessors, (584), 146 states have return successors, (672), 572 states have call predecessors, (672), 579 states have call successors, (672) [2024-11-08 14:49:48,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3293 states to 3293 states and 5418 transitions. [2024-11-08 14:49:48,184 INFO L78 Accepts]: Start accepts. Automaton has 3293 states and 5418 transitions. Word has length 154 [2024-11-08 14:49:48,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:48,184 INFO L471 AbstractCegarLoop]: Abstraction has 3293 states and 5418 transitions. [2024-11-08 14:49:48,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-08 14:49:48,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3293 states and 5418 transitions. [2024-11-08 14:49:48,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-08 14:49:48,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:48,187 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:48,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:48,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:48,387 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:48,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:48,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1901042202, now seen corresponding path program 1 times [2024-11-08 14:49:48,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:48,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723551599] [2024-11-08 14:49:48,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:48,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:48,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:48,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:48,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:48,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:49:48,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:48,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:48,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:49,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 14:49:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:49,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:49,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:49,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:49,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:49:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:49,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 14:49:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:49,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 14:49:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:49,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 14:49:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:49,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 14:49:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:49,131 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-08 14:49:49,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:49,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723551599] [2024-11-08 14:49:49,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723551599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:49,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:49:49,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 14:49:49,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131158762] [2024-11-08 14:49:49,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:49,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 14:49:49,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:49,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 14:49:49,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:49:49,132 INFO L87 Difference]: Start difference. First operand 3293 states and 5418 transitions. Second operand has 11 states, 10 states have (on average 11.0) internal successors, (110), 7 states have internal predecessors, (110), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15)