./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec3_product26.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_spec3_product26.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 64b60b46be25872d2112a950c23ddbe99bccee21bea4e463fd90753650d2a7bd --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 14:53:40,412 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 14:53:40,467 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 14:53:40,472 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 14:53:40,473 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 14:53:40,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 14:53:40,491 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 14:53:40,492 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 14:53:40,492 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 14:53:40,494 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 14:53:40,495 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 14:53:40,495 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 14:53:40,496 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 14:53:40,496 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 14:53:40,496 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 14:53:40,496 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 14:53:40,498 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 14:53:40,498 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 14:53:40,498 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 14:53:40,498 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 14:53:40,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 14:53:40,499 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 14:53:40,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 14:53:40,499 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 14:53:40,500 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 14:53:40,500 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 14:53:40,500 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 14:53:40,500 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 14:53:40,500 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 14:53:40,500 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 14:53:40,501 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 14:53:40,501 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 14:53:40,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:53:40,501 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 14:53:40,501 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 14:53:40,501 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 14:53:40,502 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 14:53:40,502 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 14:53:40,502 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 14:53:40,502 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 14:53:40,503 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 14:53:40,503 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 14:53:40,503 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64b60b46be25872d2112a950c23ddbe99bccee21bea4e463fd90753650d2a7bd [2024-11-08 14:53:40,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 14:53:40,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 14:53:40,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 14:53:40,725 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 14:53:40,725 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 14:53:40,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product26.cil.c [2024-11-08 14:53:41,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 14:53:42,160 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 14:53:42,160 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product26.cil.c [2024-11-08 14:53:42,172 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d332da218/68dfc5c7258947adb03e617b418cc737/FLAG2b37733ec [2024-11-08 14:53:42,182 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d332da218/68dfc5c7258947adb03e617b418cc737 [2024-11-08 14:53:42,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 14:53:42,184 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 14:53:42,186 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 14:53:42,186 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 14:53:42,190 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 14:53:42,191 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:53:42" (1/1) ... [2024-11-08 14:53:42,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@292bb7c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:53:42, skipping insertion in model container [2024-11-08 14:53:42,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:53:42" (1/1) ... [2024-11-08 14:53:42,238 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 14:53:42,630 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_spec3_product26.cil.c[67702,67715] [2024-11-08 14:53:42,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:53:42,648 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 14:53:42,655 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2024-11-08 14:53:42,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [67] [2024-11-08 14:53:42,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [168] [2024-11-08 14:53:42,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [520] [2024-11-08 14:53:42,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2041] [2024-11-08 14:53:42,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2407] [2024-11-08 14:53:42,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3068] [2024-11-08 14:53:42,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3186] [2024-11-08 14:53:42,658 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3195] [2024-11-08 14:53:42,658 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [3230] [2024-11-08 14:53:42,740 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_spec3_product26.cil.c[67702,67715] [2024-11-08 14:53:42,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:53:42,775 INFO L204 MainTranslator]: Completed translation [2024-11-08 14:53:42,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:53:42 WrapperNode [2024-11-08 14:53:42,779 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 14:53:42,780 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 14:53:42,780 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 14:53:42,780 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 14:53:42,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:53:42" (1/1) ... [2024-11-08 14:53:42,824 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:53:42" (1/1) ... [2024-11-08 14:53:42,862 INFO L138 Inliner]: procedures = 91, calls = 346, calls flagged for inlining = 27, calls inlined = 23, statements flattened = 862 [2024-11-08 14:53:42,865 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 14:53:42,866 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 14:53:42,866 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 14:53:42,866 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 14:53:42,874 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:53:42" (1/1) ... [2024-11-08 14:53:42,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:53:42" (1/1) ... [2024-11-08 14:53:42,878 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:53:42" (1/1) ... [2024-11-08 14:53:42,895 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-08 14:53:42,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:53:42" (1/1) ... [2024-11-08 14:53:42,896 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:53:42" (1/1) ... [2024-11-08 14:53:42,911 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:53:42" (1/1) ... [2024-11-08 14:53:42,926 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:53:42" (1/1) ... [2024-11-08 14:53:42,938 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:53:42" (1/1) ... [2024-11-08 14:53:42,945 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:53:42" (1/1) ... [2024-11-08 14:53:42,954 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 14:53:42,955 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 14:53:42,955 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 14:53:42,955 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 14:53:42,956 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:53:42" (1/1) ... [2024-11-08 14:53:42,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:53:42,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:53:42,990 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 14:53:42,992 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 14:53:43,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 14:53:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2024-11-08 14:53:43,027 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2024-11-08 14:53:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-08 14:53:43,027 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-08 14:53:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-08 14:53:43,027 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-08 14:53:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-08 14:53:43,027 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-08 14:53:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-08 14:53:43,028 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-08 14:53:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-08 14:53:43,028 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-08 14:53:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 14:53:43,029 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 14:53:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 14:53:43,029 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 14:53:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-08 14:53:43,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-08 14:53:43,030 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-08 14:53:43,030 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-08 14:53:43,030 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-08 14:53:43,031 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-08 14:53:43,031 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-08 14:53:43,031 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-08 14:53:43,031 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2024-11-08 14:53:43,031 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2024-11-08 14:53:43,032 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-08 14:53:43,032 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-08 14:53:43,032 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2024-11-08 14:53:43,032 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2024-11-08 14:53:43,032 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-08 14:53:43,032 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-08 14:53:43,032 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__empty [2024-11-08 14:53:43,032 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__empty [2024-11-08 14:53:43,032 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-08 14:53:43,032 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-08 14:53:43,033 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-08 14:53:43,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-08 14:53:43,033 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-08 14:53:43,033 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-08 14:53:43,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 14:53:43,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 14:53:43,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 14:53:43,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 14:53:43,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 14:53:43,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 14:53:43,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 14:53:43,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-08 14:53:43,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-08 14:53:43,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-08 14:53:43,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-08 14:53:43,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-08 14:53:43,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-08 14:53:43,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-08 14:53:43,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-08 14:53:43,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-08 14:53:43,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-08 14:53:43,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-08 14:53:43,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-08 14:53:43,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-08 14:53:43,035 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-08 14:53:43,035 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-08 14:53:43,035 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-08 14:53:43,036 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-08 14:53:43,036 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-08 14:53:43,036 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-08 14:53:43,036 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-08 14:53:43,036 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-08 14:53:43,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 14:53:43,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 14:53:43,036 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-08 14:53:43,036 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-08 14:53:43,180 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 14:53:43,182 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 14:53:44,103 INFO L? ?]: Removed 451 outVars from TransFormulas that were not future-live. [2024-11-08 14:53:44,103 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 14:53:44,152 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 14:53:44,154 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 14:53:44,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:53:44 BoogieIcfgContainer [2024-11-08 14:53:44,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 14:53:44,157 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 14:53:44,157 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 14:53:44,160 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 14:53:44,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 02:53:42" (1/3) ... [2024-11-08 14:53:44,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75fee003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:53:44, skipping insertion in model container [2024-11-08 14:53:44,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:53:42" (2/3) ... [2024-11-08 14:53:44,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75fee003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:53:44, skipping insertion in model container [2024-11-08 14:53:44,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:53:44" (3/3) ... [2024-11-08 14:53:44,163 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product26.cil.c [2024-11-08 14:53:44,177 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 14:53:44,177 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 14:53:44,247 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 14:53:44,254 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;@107f9027, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 14:53:44,254 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 14:53:44,259 INFO L276 IsEmpty]: Start isEmpty. Operand has 578 states, 449 states have (on average 1.6859688195991092) internal successors, (757), 469 states have internal predecessors, (757), 102 states have call successors, (102), 25 states have call predecessors, (102), 25 states have return successors, (102), 98 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-08 14:53:44,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 14:53:44,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:53:44,276 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:53:44,277 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:53:44,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:53:44,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1615056188, now seen corresponding path program 1 times [2024-11-08 14:53:44,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:53:44,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875288060] [2024-11-08 14:53:44,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:53:44,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:53:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:44,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:53:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:45,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:53:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:45,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:53:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:45,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:53:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:45,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:53:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:45,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 14:53:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:45,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 14:53:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:45,281 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:53:45,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:53:45,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875288060] [2024-11-08 14:53:45,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875288060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:53:45,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:53:45,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 14:53:45,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353529253] [2024-11-08 14:53:45,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:53:45,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 14:53:45,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:53:45,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 14:53:45,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:53:45,320 INFO L87 Difference]: Start difference. First operand has 578 states, 449 states have (on average 1.6859688195991092) internal successors, (757), 469 states have internal predecessors, (757), 102 states have call successors, (102), 25 states have call predecessors, (102), 25 states have return successors, (102), 98 states have call predecessors, (102), 102 states have call successors, (102) Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:53:50,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:53:50,843 INFO L93 Difference]: Finished difference Result 1437 states and 2483 transitions. [2024-11-08 14:53:50,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 14:53:50,845 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 63 [2024-11-08 14:53:50,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:53:50,862 INFO L225 Difference]: With dead ends: 1437 [2024-11-08 14:53:50,863 INFO L226 Difference]: Without dead ends: 863 [2024-11-08 14:53:50,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-08 14:53:50,876 INFO L432 NwaCegarLoop]: 466 mSDtfsCounter, 1499 mSDsluCounter, 2280 mSDsCounter, 0 mSdLazyCounter, 5079 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 5462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 5079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:53:50,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1602 Valid, 2746 Invalid, 5462 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [383 Valid, 5079 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-08 14:53:50,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2024-11-08 14:53:51,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 581. [2024-11-08 14:53:51,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 452 states have (on average 1.676991150442478) internal successors, (758), 472 states have internal predecessors, (758), 103 states have call successors, (103), 25 states have call predecessors, (103), 25 states have return successors, (102), 97 states have call predecessors, (102), 100 states have call successors, (102) [2024-11-08 14:53:51,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 963 transitions. [2024-11-08 14:53:51,054 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 963 transitions. Word has length 63 [2024-11-08 14:53:51,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:53:51,055 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 963 transitions. [2024-11-08 14:53:51,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:53:51,055 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 963 transitions. [2024-11-08 14:53:51,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-08 14:53:51,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:53:51,060 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:53:51,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 14:53:51,061 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:53:51,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:53:51,061 INFO L85 PathProgramCache]: Analyzing trace with hash -102377112, now seen corresponding path program 1 times [2024-11-08 14:53:51,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:53:51,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103807752] [2024-11-08 14:53:51,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:53:51,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:53:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:51,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:53:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:51,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:53:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:51,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:53:51,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:51,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:53:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:51,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:53:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:51,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:53:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:51,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 14:53:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:51,649 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:53:51,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:53:51,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103807752] [2024-11-08 14:53:51,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103807752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:53:51,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:53:51,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 14:53:51,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496123197] [2024-11-08 14:53:51,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:53:51,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 14:53:51,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:53:51,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 14:53:51,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:53:51,652 INFO L87 Difference]: Start difference. First operand 581 states and 963 transitions. Second operand has 9 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:53:56,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:53:56,383 INFO L93 Difference]: Finished difference Result 1428 states and 2444 transitions. [2024-11-08 14:53:56,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 14:53:56,383 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 64 [2024-11-08 14:53:56,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:53:56,388 INFO L225 Difference]: With dead ends: 1428 [2024-11-08 14:53:56,389 INFO L226 Difference]: Without dead ends: 863 [2024-11-08 14:53:56,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:53:56,392 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 869 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 5274 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 2688 SdHoareTripleChecker+Invalid, 5459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 5274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-08 14:53:56,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 2688 Invalid, 5459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 5274 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-08 14:53:56,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2024-11-08 14:53:56,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 581. [2024-11-08 14:53:56,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 452 states have (on average 1.674778761061947) internal successors, (757), 472 states have internal predecessors, (757), 103 states have call successors, (103), 25 states have call predecessors, (103), 25 states have return successors, (102), 97 states have call predecessors, (102), 100 states have call successors, (102) [2024-11-08 14:53:56,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 962 transitions. [2024-11-08 14:53:56,471 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 962 transitions. Word has length 64 [2024-11-08 14:53:56,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:53:56,471 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 962 transitions. [2024-11-08 14:53:56,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:53:56,471 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 962 transitions. [2024-11-08 14:53:56,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-08 14:53:56,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:53:56,473 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:53:56,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 14:53:56,476 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:53:56,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:53:56,476 INFO L85 PathProgramCache]: Analyzing trace with hash 638342732, now seen corresponding path program 1 times [2024-11-08 14:53:56,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:53:56,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70190838] [2024-11-08 14:53:56,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:53:56,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:53:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:56,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:53:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:56,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:53:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:56,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:53:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:56,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:53:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:56,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:53:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:56,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:53:56,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:56,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 14:53:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:53:56,884 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:53:56,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:53:56,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70190838] [2024-11-08 14:53:56,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70190838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:53:56,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:53:56,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:53:56,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56110389] [2024-11-08 14:53:56,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:53:56,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:53:56,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:53:56,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:53:56,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:53:56,888 INFO L87 Difference]: Start difference. First operand 581 states and 962 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 14:54:00,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:54:00,482 INFO L93 Difference]: Finished difference Result 1422 states and 2427 transitions. [2024-11-08 14:54:00,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 14:54:00,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 64 [2024-11-08 14:54:00,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:54:00,489 INFO L225 Difference]: With dead ends: 1422 [2024-11-08 14:54:00,489 INFO L226 Difference]: Without dead ends: 826 [2024-11-08 14:54:00,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:54:00,493 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 1377 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 2670 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 3054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 2670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:54:00,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 1391 Invalid, 3054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 2670 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 14:54:00,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2024-11-08 14:54:00,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 557. [2024-11-08 14:54:00,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 431 states have (on average 1.665893271461717) internal successors, (718), 449 states have internal predecessors, (718), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-08 14:54:00,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 919 transitions. [2024-11-08 14:54:00,587 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 919 transitions. Word has length 64 [2024-11-08 14:54:00,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:54:00,590 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 919 transitions. [2024-11-08 14:54:00,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 14:54:00,590 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 919 transitions. [2024-11-08 14:54:00,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 14:54:00,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:54:00,591 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:54:00,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 14:54:00,592 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:54:00,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:54:00,592 INFO L85 PathProgramCache]: Analyzing trace with hash 2003466896, now seen corresponding path program 1 times [2024-11-08 14:54:00,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:54:00,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075586657] [2024-11-08 14:54:00,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:54:00,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:54:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:00,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:00,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:00,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:54:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:00,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:01,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:01,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 14:54:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:01,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 14:54:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:01,053 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:54:01,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:54:01,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075586657] [2024-11-08 14:54:01,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075586657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:54:01,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:54:01,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 14:54:01,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853414835] [2024-11-08 14:54:01,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:54:01,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 14:54:01,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:54:01,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 14:54:01,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:54:01,056 INFO L87 Difference]: Start difference. First operand 557 states and 919 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:54:05,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:54:05,474 INFO L93 Difference]: Finished difference Result 1385 states and 2358 transitions. [2024-11-08 14:54:05,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 14:54:05,475 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-08 14:54:05,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:54:05,480 INFO L225 Difference]: With dead ends: 1385 [2024-11-08 14:54:05,480 INFO L226 Difference]: Without dead ends: 820 [2024-11-08 14:54:05,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-08 14:54:05,482 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 863 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 4999 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 2280 SdHoareTripleChecker+Invalid, 5196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 4999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-08 14:54:05,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 2280 Invalid, 5196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 4999 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-08 14:54:05,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-11-08 14:54:05,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 551. [2024-11-08 14:54:05,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 425 states have (on average 1.6588235294117648) internal successors, (705), 443 states have internal predecessors, (705), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-08 14:54:05,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 906 transitions. [2024-11-08 14:54:05,538 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 906 transitions. Word has length 65 [2024-11-08 14:54:05,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:54:05,539 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 906 transitions. [2024-11-08 14:54:05,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:54:05,539 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 906 transitions. [2024-11-08 14:54:05,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 14:54:05,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:54:05,540 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:54:05,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 14:54:05,540 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:54:05,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:54:05,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1654452592, now seen corresponding path program 1 times [2024-11-08 14:54:05,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:54:05,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821143686] [2024-11-08 14:54:05,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:54:05,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:54:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:05,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:05,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:05,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:54:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:05,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:05,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:05,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 14:54:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:05,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-08 14:54:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:05,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:54:05,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:54:05,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821143686] [2024-11-08 14:54:05,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821143686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:54:05,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:54:05,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 14:54:05,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968895394] [2024-11-08 14:54:05,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:54:05,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 14:54:05,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:54:05,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 14:54:05,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:54:05,981 INFO L87 Difference]: Start difference. First operand 551 states and 906 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:54:10,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:54:10,348 INFO L93 Difference]: Finished difference Result 1355 states and 2307 transitions. [2024-11-08 14:54:10,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 14:54:10,349 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 66 [2024-11-08 14:54:10,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:54:10,353 INFO L225 Difference]: With dead ends: 1355 [2024-11-08 14:54:10,354 INFO L226 Difference]: Without dead ends: 820 [2024-11-08 14:54:10,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:54:10,359 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 825 mSDsluCounter, 2162 mSDsCounter, 0 mSdLazyCounter, 4938 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 2597 SdHoareTripleChecker+Invalid, 5122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 4938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-08 14:54:10,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 2597 Invalid, 5122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 4938 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-08 14:54:10,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-11-08 14:54:10,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 551. [2024-11-08 14:54:10,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 425 states have (on average 1.6564705882352941) internal successors, (704), 443 states have internal predecessors, (704), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-08 14:54:10,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 905 transitions. [2024-11-08 14:54:10,437 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 905 transitions. Word has length 66 [2024-11-08 14:54:10,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:54:10,437 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 905 transitions. [2024-11-08 14:54:10,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:54:10,438 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 905 transitions. [2024-11-08 14:54:10,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 14:54:10,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:54:10,439 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:54:10,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 14:54:10,439 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:54:10,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:54:10,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1171237165, now seen corresponding path program 1 times [2024-11-08 14:54:10,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:54:10,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720972262] [2024-11-08 14:54:10,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:54:10,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:54:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:10,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:10,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:10,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:54:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:10,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:10,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:10,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:54:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:10,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 14:54:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:10,880 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:54:10,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:54:10,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720972262] [2024-11-08 14:54:10,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720972262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:54:10,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:54:10,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 14:54:10,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297128346] [2024-11-08 14:54:10,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:54:10,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 14:54:10,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:54:10,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 14:54:10,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:54:10,882 INFO L87 Difference]: Start difference. First operand 551 states and 905 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:54:15,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:54:15,270 INFO L93 Difference]: Finished difference Result 1373 states and 2327 transitions. [2024-11-08 14:54:15,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 14:54:15,271 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2024-11-08 14:54:15,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:54:15,275 INFO L225 Difference]: With dead ends: 1373 [2024-11-08 14:54:15,275 INFO L226 Difference]: Without dead ends: 814 [2024-11-08 14:54:15,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-08 14:54:15,277 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 840 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 4930 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 5123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 4930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-08 14:54:15,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 2554 Invalid, 5123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 4930 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-08 14:54:15,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2024-11-08 14:54:15,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 545. [2024-11-08 14:54:15,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 419 states have (on average 1.6491646778042959) internal successors, (691), 437 states have internal predecessors, (691), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-08 14:54:15,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 892 transitions. [2024-11-08 14:54:15,339 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 892 transitions. Word has length 67 [2024-11-08 14:54:15,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:54:15,340 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 892 transitions. [2024-11-08 14:54:15,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:54:15,340 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 892 transitions. [2024-11-08 14:54:15,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 14:54:15,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:54:15,341 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:54:15,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 14:54:15,341 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:54:15,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:54:15,341 INFO L85 PathProgramCache]: Analyzing trace with hash 336986705, now seen corresponding path program 1 times [2024-11-08 14:54:15,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:54:15,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731862413] [2024-11-08 14:54:15,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:54:15,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:54:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:15,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:15,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:15,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:54:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:15,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:15,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:15,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 14:54:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:15,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 14:54:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:15,746 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:54:15,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:54:15,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731862413] [2024-11-08 14:54:15,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731862413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:54:15,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:54:15,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 14:54:15,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502290811] [2024-11-08 14:54:15,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:54:15,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 14:54:15,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:54:15,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 14:54:15,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:54:15,749 INFO L87 Difference]: Start difference. First operand 545 states and 892 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:54:19,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:54:19,734 INFO L93 Difference]: Finished difference Result 1343 states and 2278 transitions. [2024-11-08 14:54:19,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 14:54:19,735 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2024-11-08 14:54:19,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:54:19,739 INFO L225 Difference]: With dead ends: 1343 [2024-11-08 14:54:19,739 INFO L226 Difference]: Without dead ends: 814 [2024-11-08 14:54:19,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:54:19,741 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 1368 mSDsluCounter, 1850 mSDsCounter, 0 mSdLazyCounter, 4649 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 2226 SdHoareTripleChecker+Invalid, 5057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 4649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:54:19,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 2226 Invalid, 5057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 4649 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-08 14:54:19,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2024-11-08 14:54:19,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 545. [2024-11-08 14:54:19,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 419 states have (on average 1.6467780429594272) internal successors, (690), 437 states have internal predecessors, (690), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-08 14:54:19,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 891 transitions. [2024-11-08 14:54:19,799 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 891 transitions. Word has length 68 [2024-11-08 14:54:19,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:54:19,800 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 891 transitions. [2024-11-08 14:54:19,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:54:19,800 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 891 transitions. [2024-11-08 14:54:19,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 14:54:19,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:54:19,801 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:54:19,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 14:54:19,801 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:54:19,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:54:19,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1481184175, now seen corresponding path program 1 times [2024-11-08 14:54:19,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:54:19,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592631559] [2024-11-08 14:54:19,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:54:19,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:54:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:20,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:20,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:20,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:54:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:20,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:20,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:20,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 14:54:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:20,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 14:54:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:20,245 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:54:20,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:54:20,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592631559] [2024-11-08 14:54:20,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592631559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:54:20,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:54:20,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 14:54:20,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240602632] [2024-11-08 14:54:20,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:54:20,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 14:54:20,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:54:20,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 14:54:20,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:54:20,247 INFO L87 Difference]: Start difference. First operand 545 states and 891 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:54:24,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:54:24,770 INFO L93 Difference]: Finished difference Result 1361 states and 2296 transitions. [2024-11-08 14:54:24,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 14:54:24,771 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2024-11-08 14:54:24,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:54:24,774 INFO L225 Difference]: With dead ends: 1361 [2024-11-08 14:54:24,774 INFO L226 Difference]: Without dead ends: 808 [2024-11-08 14:54:24,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-08 14:54:24,776 INFO L432 NwaCegarLoop]: 457 mSDtfsCounter, 817 mSDsluCounter, 2270 mSDsCounter, 0 mSdLazyCounter, 4864 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 2727 SdHoareTripleChecker+Invalid, 5049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 4864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-08 14:54:24,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 2727 Invalid, 5049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 4864 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-08 14:54:24,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-08 14:54:24,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 539. [2024-11-08 14:54:24,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 413 states have (on average 1.639225181598063) internal successors, (677), 431 states have internal predecessors, (677), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-08 14:54:24,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 878 transitions. [2024-11-08 14:54:24,834 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 878 transitions. Word has length 69 [2024-11-08 14:54:24,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:54:24,835 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 878 transitions. [2024-11-08 14:54:24,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:54:24,835 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 878 transitions. [2024-11-08 14:54:24,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 14:54:24,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:54:24,836 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:54:24,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 14:54:24,836 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:54:24,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:54:24,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1041535216, now seen corresponding path program 1 times [2024-11-08 14:54:24,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:54:24,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732696502] [2024-11-08 14:54:24,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:54:24,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:54:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:25,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:25,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:25,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:25,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:54:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:25,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:25,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:25,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 14:54:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:25,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 14:54:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:25,246 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:54:25,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:54:25,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732696502] [2024-11-08 14:54:25,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732696502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:54:25,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:54:25,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 14:54:25,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958137665] [2024-11-08 14:54:25,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:54:25,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 14:54:25,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:54:25,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 14:54:25,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:54:25,247 INFO L87 Difference]: Start difference. First operand 539 states and 878 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:54:29,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:54:29,184 INFO L93 Difference]: Finished difference Result 1331 states and 2249 transitions. [2024-11-08 14:54:29,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 14:54:29,185 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2024-11-08 14:54:29,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:54:29,188 INFO L225 Difference]: With dead ends: 1331 [2024-11-08 14:54:29,188 INFO L226 Difference]: Without dead ends: 808 [2024-11-08 14:54:29,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:54:29,190 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 1340 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 4558 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 4967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 4558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:54:29,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 2207 Invalid, 4967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 4558 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 14:54:29,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-08 14:54:29,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 539. [2024-11-08 14:54:29,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 413 states have (on average 1.6368038740920097) internal successors, (676), 431 states have internal predecessors, (676), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-08 14:54:29,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 877 transitions. [2024-11-08 14:54:29,249 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 877 transitions. Word has length 69 [2024-11-08 14:54:29,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:54:29,250 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 877 transitions. [2024-11-08 14:54:29,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:54:29,250 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 877 transitions. [2024-11-08 14:54:29,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 14:54:29,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:54:29,251 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:54:29,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 14:54:29,251 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:54:29,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:54:29,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1077546921, now seen corresponding path program 1 times [2024-11-08 14:54:29,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:54:29,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241298157] [2024-11-08 14:54:29,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:54:29,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:54:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:29,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:29,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:29,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:54:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:29,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:29,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:29,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 14:54:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:29,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 14:54:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:29,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:54:29,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:54:29,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241298157] [2024-11-08 14:54:29,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241298157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:54:29,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:54:29,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:54:29,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891083322] [2024-11-08 14:54:29,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:54:29,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:54:29,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:54:29,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:54:29,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:54:29,623 INFO L87 Difference]: Start difference. First operand 539 states and 877 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 14:54:32,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:54:32,918 INFO L93 Difference]: Finished difference Result 1337 states and 2253 transitions. [2024-11-08 14:54:32,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 14:54:32,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2024-11-08 14:54:32,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:54:32,922 INFO L225 Difference]: With dead ends: 1337 [2024-11-08 14:54:32,922 INFO L226 Difference]: Without dead ends: 814 [2024-11-08 14:54:32,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 14:54:32,924 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 773 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 2561 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 2751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 2561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 14:54:32,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 1381 Invalid, 2751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 2561 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 14:54:32,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2024-11-08 14:54:33,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 545. [2024-11-08 14:54:33,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 419 states have (on average 1.6276849642004774) internal successors, (682), 437 states have internal predecessors, (682), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-08 14:54:33,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 883 transitions. [2024-11-08 14:54:33,005 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 883 transitions. Word has length 70 [2024-11-08 14:54:33,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:54:33,006 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 883 transitions. [2024-11-08 14:54:33,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 14:54:33,006 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 883 transitions. [2024-11-08 14:54:33,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 14:54:33,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:54:33,007 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:54:33,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 14:54:33,008 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:54:33,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:54:33,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1921552423, now seen corresponding path program 1 times [2024-11-08 14:54:33,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:54:33,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428730468] [2024-11-08 14:54:33,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:54:33,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:54:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:33,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:33,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:33,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:54:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:33,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:33,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:33,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 14:54:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:33,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 14:54:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:33,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:54:33,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:54:33,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428730468] [2024-11-08 14:54:33,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428730468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:54:33,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:54:33,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 14:54:33,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507013729] [2024-11-08 14:54:33,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:54:33,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 14:54:33,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:54:33,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 14:54:33,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:54:33,389 INFO L87 Difference]: Start difference. First operand 545 states and 883 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:54:37,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:54:37,552 INFO L93 Difference]: Finished difference Result 1346 states and 2260 transitions. [2024-11-08 14:54:37,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 14:54:37,553 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 70 [2024-11-08 14:54:37,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:54:37,556 INFO L225 Difference]: With dead ends: 1346 [2024-11-08 14:54:37,556 INFO L226 Difference]: Without dead ends: 808 [2024-11-08 14:54:37,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:54:37,558 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 790 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 4672 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 2503 SdHoareTripleChecker+Invalid, 4866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 4672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:54:37,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 2503 Invalid, 4866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 4672 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-08 14:54:37,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-08 14:54:37,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 539. [2024-11-08 14:54:37,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 413 states have (on average 1.6343825665859564) internal successors, (675), 431 states have internal predecessors, (675), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-08 14:54:37,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 876 transitions. [2024-11-08 14:54:37,619 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 876 transitions. Word has length 70 [2024-11-08 14:54:37,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:54:37,619 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 876 transitions. [2024-11-08 14:54:37,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:54:37,619 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 876 transitions. [2024-11-08 14:54:37,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-08 14:54:37,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:54:37,620 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:54:37,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 14:54:37,620 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:54:37,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:54:37,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1116442218, now seen corresponding path program 1 times [2024-11-08 14:54:37,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:54:37,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272107873] [2024-11-08 14:54:37,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:54:37,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:54:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:37,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:37,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:37,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:37,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:54:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:38,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:38,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:38,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 14:54:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:38,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 14:54:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:38,022 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 14:54:38,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:54:38,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272107873] [2024-11-08 14:54:38,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272107873] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:54:38,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519364171] [2024-11-08 14:54:38,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:54:38,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:54:38,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:54:38,025 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 14:54:38,025 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 14:54:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:38,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 1487 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 14:54:38,248 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:54:38,280 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:54:38,280 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:54:38,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519364171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:54:38,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:54:38,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2024-11-08 14:54:38,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559466489] [2024-11-08 14:54:38,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:54:38,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 14:54:38,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:54:38,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 14:54:38,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:54:38,281 INFO L87 Difference]: Start difference. First operand 539 states and 876 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:54:38,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:54:38,408 INFO L93 Difference]: Finished difference Result 1529 states and 2518 transitions. [2024-11-08 14:54:38,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 14:54:38,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 71 [2024-11-08 14:54:38,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:54:38,414 INFO L225 Difference]: With dead ends: 1529 [2024-11-08 14:54:38,414 INFO L226 Difference]: Without dead ends: 1008 [2024-11-08 14:54:38,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:54:38,417 INFO L432 NwaCegarLoop]: 885 mSDtfsCounter, 841 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:54:38,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 1658 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:54:38,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2024-11-08 14:54:38,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 993. [2024-11-08 14:54:38,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 768 states have (on average 1.6484375) internal successors, (1266), 803 states have internal predecessors, (1266), 180 states have call successors, (180), 45 states have call predecessors, (180), 44 states have return successors, (182), 172 states have call predecessors, (182), 177 states have call successors, (182) [2024-11-08 14:54:38,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1628 transitions. [2024-11-08 14:54:38,532 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1628 transitions. Word has length 71 [2024-11-08 14:54:38,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:54:38,533 INFO L471 AbstractCegarLoop]: Abstraction has 993 states and 1628 transitions. [2024-11-08 14:54:38,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:54:38,534 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1628 transitions. [2024-11-08 14:54:38,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-08 14:54:38,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:54:38,535 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:54:38,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 14:54:38,735 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,SelfDestructingSolverStorable11 [2024-11-08 14:54:38,736 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:54:38,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:54:38,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1488771343, now seen corresponding path program 1 times [2024-11-08 14:54:38,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:54:38,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769842854] [2024-11-08 14:54:38,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:54:38,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:54:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:38,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:39,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:39,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:54:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:39,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:39,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:39,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 14:54:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:39,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 14:54:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:39,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 14:54:39,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:54:39,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769842854] [2024-11-08 14:54:39,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769842854] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:54:39,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227379038] [2024-11-08 14:54:39,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:54:39,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:54:39,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:54:39,129 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 14:54:39,130 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 14:54:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:39,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 1488 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 14:54:39,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:54:39,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:54:39,372 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:54:39,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227379038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:54:39,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:54:39,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2024-11-08 14:54:39,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288246285] [2024-11-08 14:54:39,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:54:39,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 14:54:39,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:54:39,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 14:54:39,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:54:39,374 INFO L87 Difference]: Start difference. First operand 993 states and 1628 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:54:39,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:54:39,582 INFO L93 Difference]: Finished difference Result 2437 states and 4024 transitions. [2024-11-08 14:54:39,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 14:54:39,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 72 [2024-11-08 14:54:39,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:54:39,590 INFO L225 Difference]: With dead ends: 2437 [2024-11-08 14:54:39,590 INFO L226 Difference]: Without dead ends: 1462 [2024-11-08 14:54:39,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:54:39,593 INFO L432 NwaCegarLoop]: 939 mSDtfsCounter, 841 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:54:39,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 1711 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:54:39,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2024-11-08 14:54:39,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1414. [2024-11-08 14:54:39,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 1096 states have (on average 1.6614963503649636) internal successors, (1821), 1148 states have internal predecessors, (1821), 255 states have call successors, (255), 62 states have call predecessors, (255), 62 states have return successors, (262), 245 states have call predecessors, (262), 252 states have call successors, (262) [2024-11-08 14:54:39,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 2338 transitions. [2024-11-08 14:54:39,751 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 2338 transitions. Word has length 72 [2024-11-08 14:54:39,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:54:39,751 INFO L471 AbstractCegarLoop]: Abstraction has 1414 states and 2338 transitions. [2024-11-08 14:54:39,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 14:54:39,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 2338 transitions. [2024-11-08 14:54:39,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 14:54:39,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:54:39,752 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:54:39,769 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 14:54:39,953 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,SelfDestructingSolverStorable12 [2024-11-08 14:54:39,953 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:54:39,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:54:39,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1710631331, now seen corresponding path program 1 times [2024-11-08 14:54:39,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:54:39,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905772142] [2024-11-08 14:54:39,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:54:39,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:54:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:40,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:40,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:40,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:54:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:40,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:40,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:40,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 14:54:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:40,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 14:54:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:40,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 14:54:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:40,320 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:54:40,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:54:40,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905772142] [2024-11-08 14:54:40,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905772142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:54:40,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:54:40,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 14:54:40,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438991182] [2024-11-08 14:54:40,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:54:40,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 14:54:40,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:54:40,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 14:54:40,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 14:54:40,322 INFO L87 Difference]: Start difference. First operand 1414 states and 2338 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 14:54:47,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:54:47,144 INFO L93 Difference]: Finished difference Result 5566 states and 9852 transitions. [2024-11-08 14:54:47,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 14:54:47,145 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 74 [2024-11-08 14:54:47,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:54:47,168 INFO L225 Difference]: With dead ends: 5566 [2024-11-08 14:54:47,169 INFO L226 Difference]: Without dead ends: 4170 [2024-11-08 14:54:47,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:54:47,175 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 3326 mSDsluCounter, 1863 mSDsCounter, 0 mSdLazyCounter, 4597 mSolverCounterSat, 971 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3461 SdHoareTripleChecker+Valid, 2398 SdHoareTripleChecker+Invalid, 5568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 971 IncrementalHoareTripleChecker+Valid, 4597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-08 14:54:47,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3461 Valid, 2398 Invalid, 5568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [971 Valid, 4597 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-08 14:54:47,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2024-11-08 14:54:47,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 3443. [2024-11-08 14:54:47,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3443 states, 2523 states have (on average 1.6302021403091558) internal successors, (4113), 2719 states have internal predecessors, (4113), 757 states have call successors, (757), 118 states have call predecessors, (757), 162 states have return successors, (1241), 755 states have call predecessors, (1241), 753 states have call successors, (1241) [2024-11-08 14:54:47,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3443 states to 3443 states and 6111 transitions. [2024-11-08 14:54:47,872 INFO L78 Accepts]: Start accepts. Automaton has 3443 states and 6111 transitions. Word has length 74 [2024-11-08 14:54:47,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:54:47,872 INFO L471 AbstractCegarLoop]: Abstraction has 3443 states and 6111 transitions. [2024-11-08 14:54:47,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 14:54:47,872 INFO L276 IsEmpty]: Start isEmpty. Operand 3443 states and 6111 transitions. [2024-11-08 14:54:47,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-08 14:54:47,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:54:47,873 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:54:47,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 14:54:47,873 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:54:47,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:54:47,873 INFO L85 PathProgramCache]: Analyzing trace with hash -229252298, now seen corresponding path program 1 times [2024-11-08 14:54:47,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:54:47,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402548987] [2024-11-08 14:54:47,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:54:47,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:54:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:48,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:48,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:48,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:54:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:48,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:48,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:48,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 14:54:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:48,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 14:54:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:48,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 14:54:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:48,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 14:54:48,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:54:48,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402548987] [2024-11-08 14:54:48,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402548987] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:54:48,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948675249] [2024-11-08 14:54:48,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:54:48,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:54:48,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:54:48,265 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 14:54:48,266 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 14:54:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:48,462 INFO L255 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 14:54:48,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:54:48,548 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:54:48,548 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:54:48,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948675249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:54:48,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:54:48,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2024-11-08 14:54:48,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764612881] [2024-11-08 14:54:48,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:54:48,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 14:54:48,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:54:48,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 14:54:48,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:54:48,549 INFO L87 Difference]: Start difference. First operand 3443 states and 6111 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-08 14:54:49,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:54:49,926 INFO L93 Difference]: Finished difference Result 9264 states and 16652 transitions. [2024-11-08 14:54:49,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 14:54:49,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 75 [2024-11-08 14:54:49,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:54:49,957 INFO L225 Difference]: With dead ends: 9264 [2024-11-08 14:54:49,957 INFO L226 Difference]: Without dead ends: 5839 [2024-11-08 14:54:49,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-08 14:54:49,974 INFO L432 NwaCegarLoop]: 909 mSDtfsCounter, 740 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 3479 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 14:54:49,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 3479 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 14:54:49,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5839 states. [2024-11-08 14:54:51,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5839 to 5796. [2024-11-08 14:54:51,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5796 states, 4248 states have (on average 1.5908662900188324) internal successors, (6758), 4574 states have internal predecessors, (6758), 1260 states have call successors, (1260), 210 states have call predecessors, (1260), 287 states have return successors, (2170), 1261 states have call predecessors, (2170), 1254 states have call successors, (2170) [2024-11-08 14:54:51,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5796 states to 5796 states and 10188 transitions. [2024-11-08 14:54:51,222 INFO L78 Accepts]: Start accepts. Automaton has 5796 states and 10188 transitions. Word has length 75 [2024-11-08 14:54:51,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:54:51,222 INFO L471 AbstractCegarLoop]: Abstraction has 5796 states and 10188 transitions. [2024-11-08 14:54:51,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-08 14:54:51,222 INFO L276 IsEmpty]: Start isEmpty. Operand 5796 states and 10188 transitions. [2024-11-08 14:54:51,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-08 14:54:51,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:54:51,224 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:54:51,238 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 14:54:51,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:54:51,424 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:54:51,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:54:51,425 INFO L85 PathProgramCache]: Analyzing trace with hash -41120062, now seen corresponding path program 1 times [2024-11-08 14:54:51,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:54:51,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55458295] [2024-11-08 14:54:51,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:54:51,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:54:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:51,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:51,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:51,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:54:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:51,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:51,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:51,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:51,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 14:54:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:51,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 14:54:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:51,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 14:54:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:51,721 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:54:51,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:54:51,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55458295] [2024-11-08 14:54:51,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55458295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:54:51,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:54:51,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:54:51,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10788386] [2024-11-08 14:54:51,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:54:51,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:54:51,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:54:51,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:54:51,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:54:51,722 INFO L87 Difference]: Start difference. First operand 5796 states and 10188 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 14:54:56,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:54:56,376 INFO L93 Difference]: Finished difference Result 12800 states and 22958 transitions. [2024-11-08 14:54:56,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 14:54:56,377 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2024-11-08 14:54:56,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:54:56,413 INFO L225 Difference]: With dead ends: 12800 [2024-11-08 14:54:56,413 INFO L226 Difference]: Without dead ends: 7022 [2024-11-08 14:54:56,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:54:56,435 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 778 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 2581 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 2761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 14:54:56,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 1520 Invalid, 2761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2581 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 14:54:56,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7022 states. [2024-11-08 14:54:57,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7022 to 6296. [2024-11-08 14:54:57,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6296 states, 4494 states have (on average 1.577659101023587) internal successors, (7090), 4860 states have internal predecessors, (7090), 1496 states have call successors, (1496), 214 states have call predecessors, (1496), 305 states have return successors, (2657), 1511 states have call predecessors, (2657), 1490 states have call successors, (2657) [2024-11-08 14:54:57,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6296 states to 6296 states and 11243 transitions. [2024-11-08 14:54:57,716 INFO L78 Accepts]: Start accepts. Automaton has 6296 states and 11243 transitions. Word has length 75 [2024-11-08 14:54:57,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:54:57,717 INFO L471 AbstractCegarLoop]: Abstraction has 6296 states and 11243 transitions. [2024-11-08 14:54:57,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 14:54:57,717 INFO L276 IsEmpty]: Start isEmpty. Operand 6296 states and 11243 transitions. [2024-11-08 14:54:57,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 14:54:57,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:54:57,718 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:54:57,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 14:54:57,718 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:54:57,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:54:57,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1571611657, now seen corresponding path program 1 times [2024-11-08 14:54:57,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:54:57,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056963773] [2024-11-08 14:54:57,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:54:57,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:54:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:57,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:58,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:58,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:54:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:58,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:54:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:58,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:54:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:58,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 14:54:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:58,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 14:54:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:58,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 14:54:58,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:58,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 14:54:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:54:58,094 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 14:54:58,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:54:58,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056963773] [2024-11-08 14:54:58,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056963773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:54:58,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:54:58,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 14:54:58,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890242443] [2024-11-08 14:54:58,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:54:58,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 14:54:58,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:54:58,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 14:54:58,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 14:54:58,096 INFO L87 Difference]: Start difference. First operand 6296 states and 11243 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 14:55:07,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:55:07,416 INFO L93 Difference]: Finished difference Result 20256 states and 37658 transitions. [2024-11-08 14:55:07,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 14:55:07,417 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 83 [2024-11-08 14:55:07,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:55:07,475 INFO L225 Difference]: With dead ends: 20256 [2024-11-08 14:55:07,475 INFO L226 Difference]: Without dead ends: 13978 [2024-11-08 14:55:07,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:55:07,504 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 2308 mSDsluCounter, 1847 mSDsCounter, 0 mSdLazyCounter, 4554 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2442 SdHoareTripleChecker+Valid, 2337 SdHoareTripleChecker+Invalid, 5197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 4554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-08 14:55:07,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2442 Valid, 2337 Invalid, 5197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 4554 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-08 14:55:07,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13978 states. [2024-11-08 14:55:10,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13978 to 12492. [2024-11-08 14:55:10,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12492 states, 8918 states have (on average 1.575577483740749) internal successors, (14051), 9644 states have internal predecessors, (14051), 2964 states have call successors, (2964), 422 states have call predecessors, (2964), 609 states have return successors, (6055), 3005 states have call predecessors, (6055), 2954 states have call successors, (6055) [2024-11-08 14:55:10,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12492 states to 12492 states and 23070 transitions. [2024-11-08 14:55:10,300 INFO L78 Accepts]: Start accepts. Automaton has 12492 states and 23070 transitions. Word has length 83 [2024-11-08 14:55:10,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:55:10,301 INFO L471 AbstractCegarLoop]: Abstraction has 12492 states and 23070 transitions. [2024-11-08 14:55:10,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 14:55:10,302 INFO L276 IsEmpty]: Start isEmpty. Operand 12492 states and 23070 transitions. [2024-11-08 14:55:10,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 14:55:10,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:55:10,303 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:55:10,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 14:55:10,303 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:55:10,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:55:10,303 INFO L85 PathProgramCache]: Analyzing trace with hash 475861302, now seen corresponding path program 1 times [2024-11-08 14:55:10,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:55:10,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535141315] [2024-11-08 14:55:10,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:55:10,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:55:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:55:10,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:55:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:55:10,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:55:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:55:10,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:55:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:55:10,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:55:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:55:10,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:55:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:55:10,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 14:55:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:55:10,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 14:55:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:55:10,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 14:55:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:55:10,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 14:55:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:55:10,641 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 14:55:10,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:55:10,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535141315] [2024-11-08 14:55:10,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535141315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:55:10,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:55:10,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:55:10,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736257619] [2024-11-08 14:55:10,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:55:10,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:55:10,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:55:10,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:55:10,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:55:10,644 INFO L87 Difference]: Start difference. First operand 12492 states and 23070 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)