./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec3_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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_product18.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 b60f36c6abb85551baa468c8faf905605a37519376312e75fd6944689b1d0b8d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 07:31:37,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 07:31:37,772 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 07:31:37,777 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 07:31:37,778 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 07:31:37,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 07:31:37,810 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 07:31:37,810 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 07:31:37,811 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 07:31:37,811 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 07:31:37,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 07:31:37,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 07:31:37,813 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 07:31:37,813 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 07:31:37,813 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 07:31:37,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 07:31:37,814 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 07:31:37,814 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 07:31:37,814 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 07:31:37,815 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 07:31:37,819 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 07:31:37,820 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 07:31:37,820 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 07:31:37,820 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 07:31:37,821 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 07:31:37,822 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 07:31:37,822 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 07:31:37,822 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 07:31:37,822 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 07:31:37,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 07:31:37,823 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 07:31:37,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 07:31:37,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:31:37,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 07:31:37,824 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 07:31:37,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 07:31:37,825 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 07:31:37,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 07:31:37,825 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 07:31:37,826 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 07:31:37,826 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 07:31:37,826 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 07:31:37,826 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b60f36c6abb85551baa468c8faf905605a37519376312e75fd6944689b1d0b8d [2024-11-16 07:31:38,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 07:31:38,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 07:31:38,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 07:31:38,085 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 07:31:38,086 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 07:31:38,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product18.cil.c [2024-11-16 07:31:39,535 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 07:31:39,839 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 07:31:39,841 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product18.cil.c [2024-11-16 07:31:39,862 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c36e0d289/11555573a11c4d0aaec801bb86a5c8de/FLAG2262278c7 [2024-11-16 07:31:39,878 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c36e0d289/11555573a11c4d0aaec801bb86a5c8de [2024-11-16 07:31:39,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 07:31:39,884 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 07:31:39,885 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 07:31:39,885 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 07:31:39,894 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 07:31:39,895 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:31:39" (1/1) ... [2024-11-16 07:31:39,896 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3140d413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:39, skipping insertion in model container [2024-11-16 07:31:39,896 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:31:39" (1/1) ... [2024-11-16 07:31:39,958 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 07:31:40,323 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_product18.cil.c[32398,32411] [2024-11-16 07:31:40,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:31:40,485 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 07:31:40,528 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-11-16 07:31:40,529 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [86] [2024-11-16 07:31:40,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [452] [2024-11-16 07:31:40,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1120] [2024-11-16 07:31:40,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1476] [2024-11-16 07:31:40,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1485] [2024-11-16 07:31:40,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2984] [2024-11-16 07:31:40,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [3102] [2024-11-16 07:31:40,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3288] [2024-11-16 07:31:40,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3303] [2024-11-16 07:31:40,583 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_product18.cil.c[32398,32411] [2024-11-16 07:31:40,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:31:40,654 INFO L204 MainTranslator]: Completed translation [2024-11-16 07:31:40,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:40 WrapperNode [2024-11-16 07:31:40,655 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 07:31:40,656 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 07:31:40,656 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 07:31:40,656 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 07:31:40,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:40" (1/1) ... [2024-11-16 07:31:40,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:40" (1/1) ... [2024-11-16 07:31:40,746 INFO L138 Inliner]: procedures = 90, calls = 344, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 817 [2024-11-16 07:31:40,746 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 07:31:40,747 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 07:31:40,747 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 07:31:40,747 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 07:31:40,763 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:40" (1/1) ... [2024-11-16 07:31:40,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:40" (1/1) ... [2024-11-16 07:31:40,771 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:40" (1/1) ... [2024-11-16 07:31:40,811 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-16 07:31:40,811 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:40" (1/1) ... [2024-11-16 07:31:40,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:40" (1/1) ... [2024-11-16 07:31:40,843 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:40" (1/1) ... [2024-11-16 07:31:40,849 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:40" (1/1) ... [2024-11-16 07:31:40,856 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:40" (1/1) ... [2024-11-16 07:31:40,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:40" (1/1) ... [2024-11-16 07:31:40,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 07:31:40,867 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 07:31:40,867 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 07:31:40,868 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 07:31:40,868 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:40" (1/1) ... [2024-11-16 07:31:40,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:31:40,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:31:40,910 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) [2024-11-16 07:31:40,916 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 [2024-11-16 07:31:40,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 07:31:40,955 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2024-11-16 07:31:40,955 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2024-11-16 07:31:40,956 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-16 07:31:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-16 07:31:40,956 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-16 07:31:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-16 07:31:40,956 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-16 07:31:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-16 07:31:40,956 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-16 07:31:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-16 07:31:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-16 07:31:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-16 07:31:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-16 07:31:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-16 07:31:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-16 07:31:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-16 07:31:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-16 07:31:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-16 07:31:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-16 07:31:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-16 07:31:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-16 07:31:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-16 07:31:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-16 07:31:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-16 07:31:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2024-11-16 07:31:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2024-11-16 07:31:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-16 07:31:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-16 07:31:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-16 07:31:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-16 07:31:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2024-11-16 07:31:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2024-11-16 07:31:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-16 07:31:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-16 07:31:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-16 07:31:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-16 07:31:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-16 07:31:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-16 07:31:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 07:31:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 07:31:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 07:31:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 07:31:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 07:31:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 07:31:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-16 07:31:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-16 07:31:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-16 07:31:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-16 07:31:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-16 07:31:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-16 07:31:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-16 07:31:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-16 07:31:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-16 07:31:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-16 07:31:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-16 07:31:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-16 07:31:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-16 07:31:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-16 07:31:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__weight [2024-11-16 07:31:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__weight [2024-11-16 07:31:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-16 07:31:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-16 07:31:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-16 07:31:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-16 07:31:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-16 07:31:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-16 07:31:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-16 07:31:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-16 07:31:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 07:31:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 07:31:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-16 07:31:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-16 07:31:41,157 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 07:31:41,160 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 07:31:41,206 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1770: #res := ~retValue_acc~14; [2024-11-16 07:31:41,230 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3099: #res := ~retValue_acc~25; [2024-11-16 07:31:41,251 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3021: #res := ~retValue_acc~23; [2024-11-16 07:31:41,258 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1565: #res := ~retValue_acc~10; [2024-11-16 07:31:41,583 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2255: #res := ~retValue_acc~18; [2024-11-16 07:31:41,668 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2359: #res := ~retValue_acc~21; [2024-11-16 07:31:41,684 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3060: #res := ~retValue_acc~24; [2024-11-16 07:31:41,839 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2345-1: stopRequestedAtCurrentFloor_#res#1 := stopRequestedAtCurrentFloor_~retValue_acc~20#1; [2024-11-16 07:31:41,860 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1761: #res := ~retValue_acc~13; [2024-11-16 07:31:41,935 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1890-1: anyStopRequested_#res#1 := anyStopRequested_~retValue_acc~16#1; [2024-11-16 07:31:41,936 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1903-1: isIdle_#res#1 := isIdle_~retValue_acc~17#1; [2024-11-16 07:31:42,033 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1718-1: getCurrentFloorID_#res#1 := getCurrentFloorID_~retValue_acc~11#1; [2024-11-16 07:31:42,034 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1727-1: areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~12#1; [2024-11-16 07:31:42,094 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L806: #res := ~retValue_acc~6; [2024-11-16 07:31:42,170 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L83-1: valid_product_#res#1 := valid_product_~retValue_acc~1#1; [2024-11-16 07:31:42,170 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1473-1: main_#res#1 := main_~retValue_acc~9#1; [2024-11-16 07:31:42,181 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L570: #res := ~retValue_acc~5; [2024-11-16 07:31:42,187 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1117: #res := ~retValue_acc~7; [2024-11-16 07:31:42,340 INFO L? ?]: Removed 439 outVars from TransFormulas that were not future-live. [2024-11-16 07:31:42,340 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 07:31:42,376 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 07:31:42,377 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 07:31:42,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:31:42 BoogieIcfgContainer [2024-11-16 07:31:42,379 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 07:31:42,381 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 07:31:42,382 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 07:31:42,385 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 07:31:42,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:31:39" (1/3) ... [2024-11-16 07:31:42,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff8f540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:31:42, skipping insertion in model container [2024-11-16 07:31:42,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:40" (2/3) ... [2024-11-16 07:31:42,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff8f540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:31:42, skipping insertion in model container [2024-11-16 07:31:42,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:31:42" (3/3) ... [2024-11-16 07:31:42,389 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product18.cil.c [2024-11-16 07:31:42,406 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 07:31:42,407 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 07:31:42,487 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 07:31:42,497 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;@47e19269, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 07:31:42,498 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 07:31:42,506 INFO L276 IsEmpty]: Start isEmpty. Operand has 599 states, 470 states have (on average 1.6404255319148937) internal successors, (771), 490 states have internal predecessors, (771), 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) [2024-11-16 07:31:42,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 07:31:42,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:31:42,518 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] [2024-11-16 07:31:42,519 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:31:42,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:31:42,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1781078962, now seen corresponding path program 1 times [2024-11-16 07:31:42,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:31:42,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648241613] [2024-11-16 07:31:42,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:31:42,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:31:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:43,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:31:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:43,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:43,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:31:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:43,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:43,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:31:43,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:43,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 07:31:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:43,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:31:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:43,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-16 07:31:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:43,979 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:31:43,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:31:43,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648241613] [2024-11-16 07:31:43,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648241613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:31:43,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:31:43,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 07:31:43,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738603403] [2024-11-16 07:31:43,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:31:43,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 07:31:43,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:31:44,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 07:31:44,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:31:44,011 INFO L87 Difference]: Start difference. First operand has 599 states, 470 states have (on average 1.6404255319148937) internal successors, (771), 490 states have internal predecessors, (771), 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 5.875) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 07:31:51,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:31:51,254 INFO L93 Difference]: Finished difference Result 1473 states and 2498 transitions. [2024-11-16 07:31:51,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 07:31:51,257 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, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 67 [2024-11-16 07:31:51,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:31:51,291 INFO L225 Difference]: With dead ends: 1473 [2024-11-16 07:31:51,292 INFO L226 Difference]: Without dead ends: 875 [2024-11-16 07:31:51,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-16 07:31:51,308 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 1532 mSDsluCounter, 2332 mSDsCounter, 0 mSdLazyCounter, 4957 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1635 SdHoareTripleChecker+Valid, 2806 SdHoareTripleChecker+Invalid, 5340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 4957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-16 07:31:51,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1635 Valid, 2806 Invalid, 5340 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [383 Valid, 4957 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-16 07:31:51,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2024-11-16 07:31:51,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 600. [2024-11-16 07:31:51,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 471 states have (on average 1.634819532908705) internal successors, (770), 491 states have internal predecessors, (770), 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) [2024-11-16 07:31:51,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 975 transitions. [2024-11-16 07:31:51,535 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 975 transitions. Word has length 67 [2024-11-16 07:31:51,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:31:51,537 INFO L471 AbstractCegarLoop]: Abstraction has 600 states and 975 transitions. [2024-11-16 07:31:51,537 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, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 07:31:51,537 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 975 transitions. [2024-11-16 07:31:51,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 07:31:51,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:31:51,545 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] [2024-11-16 07:31:51,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 07:31:51,546 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:31:51,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:31:51,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1991945925, now seen corresponding path program 1 times [2024-11-16 07:31:51,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:31:51,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015069963] [2024-11-16 07:31:51,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:31:51,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:31:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:51,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:31:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:52,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:52,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:31:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:52,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:52,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:31:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:52,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 07:31:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:52,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 07:31:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:52,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 07:31:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:52,136 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:31:52,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:31:52,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015069963] [2024-11-16 07:31:52,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015069963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:31:52,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:31:52,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:31:52,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508183122] [2024-11-16 07:31:52,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:31:52,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:31:52,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:31:52,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:31:52,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:31:52,142 INFO L87 Difference]: Start difference. First operand 600 states and 975 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 07:31:57,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:31:57,162 INFO L93 Difference]: Finished difference Result 1453 states and 2440 transitions. [2024-11-16 07:31:57,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 07:31:57,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2024-11-16 07:31:57,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:31:57,170 INFO L225 Difference]: With dead ends: 1453 [2024-11-16 07:31:57,170 INFO L226 Difference]: Without dead ends: 838 [2024-11-16 07:31:57,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:31:57,174 INFO L432 NwaCegarLoop]: 401 mSDtfsCounter, 818 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 2729 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 2921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 2729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:31:57,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 1344 Invalid, 2921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 2729 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-16 07:31:57,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-16 07:31:57,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 576. [2024-11-16 07:31:57,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 450 states have (on average 1.6244444444444444) internal successors, (731), 468 states have internal predecessors, (731), 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) [2024-11-16 07:31:57,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 932 transitions. [2024-11-16 07:31:57,268 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 932 transitions. Word has length 68 [2024-11-16 07:31:57,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:31:57,269 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 932 transitions. [2024-11-16 07:31:57,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 07:31:57,269 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 932 transitions. [2024-11-16 07:31:57,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 07:31:57,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:31:57,276 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, 1, 1, 1, 1, 1] [2024-11-16 07:31:57,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 07:31:57,276 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:31:57,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:31:57,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1839680443, now seen corresponding path program 1 times [2024-11-16 07:31:57,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:31:57,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904452491] [2024-11-16 07:31:57,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:31:57,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:31:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:57,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:31:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:57,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:57,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:31:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:57,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:31:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:57,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:31:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:57,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 07:31:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:57,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 07:31:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:57,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 07:31:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:31:57,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:31:57,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:31:57,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904452491] [2024-11-16 07:31:57,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904452491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:31:57,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:31:57,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:31:57,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145069501] [2024-11-16 07:31:57,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:31:57,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:31:57,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:31:57,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:31:57,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:31:57,996 INFO L87 Difference]: Start difference. First operand 576 states and 932 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2024-11-16 07:32:01,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:32:01,954 INFO L93 Difference]: Finished difference Result 1398 states and 2346 transitions. [2024-11-16 07:32:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 07:32:01,958 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 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 68 [2024-11-16 07:32:01,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:32:01,965 INFO L225 Difference]: With dead ends: 1398 [2024-11-16 07:32:01,965 INFO L226 Difference]: Without dead ends: 838 [2024-11-16 07:32:01,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:32:01,970 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 1408 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 2490 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1392 SdHoareTripleChecker+Invalid, 2874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 2490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-16 07:32:01,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1392 Invalid, 2874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 2490 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-16 07:32:01,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-16 07:32:02,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 576. [2024-11-16 07:32:02,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 450 states have (on average 1.6222222222222222) internal successors, (730), 468 states have internal predecessors, (730), 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) [2024-11-16 07:32:02,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 931 transitions. [2024-11-16 07:32:02,065 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 931 transitions. Word has length 68 [2024-11-16 07:32:02,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:32:02,065 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 931 transitions. [2024-11-16 07:32:02,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2024-11-16 07:32:02,065 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 931 transitions. [2024-11-16 07:32:02,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 07:32:02,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:32:02,070 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] [2024-11-16 07:32:02,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 07:32:02,070 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:32:02,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:32:02,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1515639656, now seen corresponding path program 1 times [2024-11-16 07:32:02,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:32:02,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453847434] [2024-11-16 07:32:02,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:32:02,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:32:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:02,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:02,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:02,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:32:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:02,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:02,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:02,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:32:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:02,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 07:32:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:02,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:32:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:02,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:32:02,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:32:02,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453847434] [2024-11-16 07:32:02,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453847434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:32:02,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:32:02,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 07:32:02,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405387001] [2024-11-16 07:32:02,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:32:02,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 07:32:02,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:32:02,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 07:32:02,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:32:02,692 INFO L87 Difference]: Start difference. First operand 576 states and 931 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, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 07:32:08,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:32:08,448 INFO L93 Difference]: Finished difference Result 1416 states and 2368 transitions. [2024-11-16 07:32:08,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 07:32:08,448 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, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 69 [2024-11-16 07:32:08,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:32:08,455 INFO L225 Difference]: With dead ends: 1416 [2024-11-16 07:32:08,455 INFO L226 Difference]: Without dead ends: 832 [2024-11-16 07:32:08,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-16 07:32:08,459 INFO L432 NwaCegarLoop]: 462 mSDtfsCounter, 861 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 4957 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 2762 SdHoareTripleChecker+Invalid, 5143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 4957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-16 07:32:08,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [963 Valid, 2762 Invalid, 5143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 4957 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-16 07:32:08,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2024-11-16 07:32:08,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 570. [2024-11-16 07:32:08,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 444 states have (on average 1.614864864864865) internal successors, (717), 462 states have internal predecessors, (717), 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) [2024-11-16 07:32:08,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 918 transitions. [2024-11-16 07:32:08,552 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 918 transitions. Word has length 69 [2024-11-16 07:32:08,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:32:08,552 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 918 transitions. [2024-11-16 07:32:08,552 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, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 07:32:08,553 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 918 transitions. [2024-11-16 07:32:08,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 07:32:08,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:32:08,554 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] [2024-11-16 07:32:08,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 07:32:08,554 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:32:08,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:32:08,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1177785367, now seen corresponding path program 1 times [2024-11-16 07:32:08,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:32:08,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753260049] [2024-11-16 07:32:08,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:32:08,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:32:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:08,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:09,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:09,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:32:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:09,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:09,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:09,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 07:32:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:09,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 07:32:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:09,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:32:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:09,174 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:32:09,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:32:09,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753260049] [2024-11-16 07:32:09,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753260049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:32:09,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:32:09,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:32:09,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769707068] [2024-11-16 07:32:09,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:32:09,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:32:09,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:32:09,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:32:09,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:32:09,177 INFO L87 Difference]: Start difference. First operand 570 states and 918 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-16 07:32:13,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:32:13,125 INFO L93 Difference]: Finished difference Result 1386 states and 2317 transitions. [2024-11-16 07:32:13,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 07:32:13,126 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 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 70 [2024-11-16 07:32:13,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:32:13,131 INFO L225 Difference]: With dead ends: 1386 [2024-11-16 07:32:13,132 INFO L226 Difference]: Without dead ends: 832 [2024-11-16 07:32:13,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:32:13,135 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 822 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 2579 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 2772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 2579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-16 07:32:13,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 1296 Invalid, 2772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 2579 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-16 07:32:13,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2024-11-16 07:32:13,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 570. [2024-11-16 07:32:13,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 444 states have (on average 1.6126126126126126) internal successors, (716), 462 states have internal predecessors, (716), 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) [2024-11-16 07:32:13,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 917 transitions. [2024-11-16 07:32:13,216 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 917 transitions. Word has length 70 [2024-11-16 07:32:13,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:32:13,217 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 917 transitions. [2024-11-16 07:32:13,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-16 07:32:13,217 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 917 transitions. [2024-11-16 07:32:13,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 07:32:13,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:32:13,219 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] [2024-11-16 07:32:13,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 07:32:13,219 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:32:13,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:32:13,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1374114801, now seen corresponding path program 1 times [2024-11-16 07:32:13,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:32:13,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235569995] [2024-11-16 07:32:13,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:32:13,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:32:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:13,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:13,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:13,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:32:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:13,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:13,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:13,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 07:32:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:13,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 07:32:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:13,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 07:32:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:13,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:32:13,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:32:13,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235569995] [2024-11-16 07:32:13,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235569995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:32:13,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:32:13,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 07:32:13,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766736407] [2024-11-16 07:32:13,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:32:13,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 07:32:13,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:32:13,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 07:32:13,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:32:13,782 INFO L87 Difference]: Start difference. First operand 570 states and 917 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, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 07:32:19,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:32:19,029 INFO L93 Difference]: Finished difference Result 1404 states and 2337 transitions. [2024-11-16 07:32:19,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 07:32:19,030 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, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 71 [2024-11-16 07:32:19,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:32:19,035 INFO L225 Difference]: With dead ends: 1404 [2024-11-16 07:32:19,035 INFO L226 Difference]: Without dead ends: 826 [2024-11-16 07:32:19,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-16 07:32:19,040 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 1401 mSDsluCounter, 2137 mSDsCounter, 0 mSdLazyCounter, 4724 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 5111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 4724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-16 07:32:19,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 2570 Invalid, 5111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 4724 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-16 07:32:19,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2024-11-16 07:32:19,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 564. [2024-11-16 07:32:19,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 438 states have (on average 1.6050228310502284) internal successors, (703), 456 states have internal predecessors, (703), 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) [2024-11-16 07:32:19,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 904 transitions. [2024-11-16 07:32:19,133 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 904 transitions. Word has length 71 [2024-11-16 07:32:19,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:32:19,134 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 904 transitions. [2024-11-16 07:32:19,134 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, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 07:32:19,134 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 904 transitions. [2024-11-16 07:32:19,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 07:32:19,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:32:19,135 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] [2024-11-16 07:32:19,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 07:32:19,136 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:32:19,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:32:19,136 INFO L85 PathProgramCache]: Analyzing trace with hash 736848600, now seen corresponding path program 1 times [2024-11-16 07:32:19,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:32:19,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757718534] [2024-11-16 07:32:19,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:32:19,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:32:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:19,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:19,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:19,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:32:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:19,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:19,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:19,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-16 07:32:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:19,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 07:32:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:19,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 07:32:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:19,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:32:19,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:32:19,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757718534] [2024-11-16 07:32:19,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757718534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:32:19,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:32:19,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:32:19,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422064534] [2024-11-16 07:32:19,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:32:19,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:32:19,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:32:19,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:32:19,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:32:19,677 INFO L87 Difference]: Start difference. First operand 564 states and 904 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, (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) [2024-11-16 07:32:23,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:32:23,453 INFO L93 Difference]: Finished difference Result 1374 states and 2288 transitions. [2024-11-16 07:32:23,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 07:32:23,453 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, (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 72 [2024-11-16 07:32:23,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:32:23,459 INFO L225 Difference]: With dead ends: 1374 [2024-11-16 07:32:23,459 INFO L226 Difference]: Without dead ends: 826 [2024-11-16 07:32:23,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:32:23,463 INFO L432 NwaCegarLoop]: 430 mSDtfsCounter, 1353 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 2431 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 2815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 2431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:32:23,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1455 Valid, 1384 Invalid, 2815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 2431 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-16 07:32:23,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2024-11-16 07:32:23,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 564. [2024-11-16 07:32:23,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 438 states have (on average 1.6027397260273972) internal successors, (702), 456 states have internal predecessors, (702), 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) [2024-11-16 07:32:23,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 903 transitions. [2024-11-16 07:32:23,552 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 903 transitions. Word has length 72 [2024-11-16 07:32:23,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:32:23,552 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 903 transitions. [2024-11-16 07:32:23,552 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, (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) [2024-11-16 07:32:23,552 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 903 transitions. [2024-11-16 07:32:23,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 07:32:23,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:32:23,553 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] [2024-11-16 07:32:23,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 07:32:23,554 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:32:23,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:32:23,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1709128975, now seen corresponding path program 1 times [2024-11-16 07:32:23,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:32:23,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68902274] [2024-11-16 07:32:23,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:32:23,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:32:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:23,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:24,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:24,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:32:24,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:24,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:24,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:24,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 07:32:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:24,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 07:32:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:24,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 07:32:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:24,119 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:32:24,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:32:24,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68902274] [2024-11-16 07:32:24,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68902274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:32:24,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:32:24,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 07:32:24,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994323544] [2024-11-16 07:32:24,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:32:24,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 07:32:24,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:32:24,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 07:32:24,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:32:24,122 INFO L87 Difference]: Start difference. First operand 564 states and 903 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 07:32:29,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:32:29,081 INFO L93 Difference]: Finished difference Result 1392 states and 2306 transitions. [2024-11-16 07:32:29,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 07:32:29,081 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 73 [2024-11-16 07:32:29,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:32:29,086 INFO L225 Difference]: With dead ends: 1392 [2024-11-16 07:32:29,087 INFO L226 Difference]: Without dead ends: 820 [2024-11-16 07:32:29,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-16 07:32:29,090 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 1371 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 4632 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 2564 SdHoareTripleChecker+Invalid, 5020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 4632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-16 07:32:29,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 2564 Invalid, 5020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 4632 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-16 07:32:29,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-11-16 07:32:29,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 558. [2024-11-16 07:32:29,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 432 states have (on average 1.5949074074074074) internal successors, (689), 450 states have internal predecessors, (689), 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) [2024-11-16 07:32:29,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 890 transitions. [2024-11-16 07:32:29,181 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 890 transitions. Word has length 73 [2024-11-16 07:32:29,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:32:29,181 INFO L471 AbstractCegarLoop]: Abstraction has 558 states and 890 transitions. [2024-11-16 07:32:29,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 07:32:29,181 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 890 transitions. [2024-11-16 07:32:29,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 07:32:29,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:32:29,184 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] [2024-11-16 07:32:29,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 07:32:29,184 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:32:29,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:32:29,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1037553593, now seen corresponding path program 1 times [2024-11-16 07:32:29,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:32:29,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35807054] [2024-11-16 07:32:29,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:32:29,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:32:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:29,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:29,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:29,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:32:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:29,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:29,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:29,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 07:32:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:29,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 07:32:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:29,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 07:32:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:29,725 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:32:29,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:32:29,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35807054] [2024-11-16 07:32:29,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35807054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:32:29,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:32:29,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 07:32:29,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575803075] [2024-11-16 07:32:29,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:32:29,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 07:32:29,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:32:29,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 07:32:29,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:32:29,727 INFO L87 Difference]: Start difference. First operand 558 states and 890 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 07:32:34,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:32:34,494 INFO L93 Difference]: Finished difference Result 1362 states and 2259 transitions. [2024-11-16 07:32:34,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 07:32:34,495 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 73 [2024-11-16 07:32:34,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:32:34,501 INFO L225 Difference]: With dead ends: 1362 [2024-11-16 07:32:34,501 INFO L226 Difference]: Without dead ends: 820 [2024-11-16 07:32:34,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:32:34,504 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 1335 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 4463 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 2504 SdHoareTripleChecker+Invalid, 4856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 4463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-16 07:32:34,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1437 Valid, 2504 Invalid, 4856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 4463 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-16 07:32:34,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-11-16 07:32:34,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 558. [2024-11-16 07:32:34,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 432 states have (on average 1.5925925925925926) internal successors, (688), 450 states have internal predecessors, (688), 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) [2024-11-16 07:32:34,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 889 transitions. [2024-11-16 07:32:34,597 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 889 transitions. Word has length 73 [2024-11-16 07:32:34,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:32:34,598 INFO L471 AbstractCegarLoop]: Abstraction has 558 states and 889 transitions. [2024-11-16 07:32:34,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 07:32:34,598 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 889 transitions. [2024-11-16 07:32:34,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-16 07:32:34,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:32:34,599 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] [2024-11-16 07:32:34,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 07:32:34,600 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:32:34,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:32:34,600 INFO L85 PathProgramCache]: Analyzing trace with hash -528085069, now seen corresponding path program 1 times [2024-11-16 07:32:34,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:32:34,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065923207] [2024-11-16 07:32:34,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:32:34,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:32:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:34,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:35,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:35,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:35,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:32:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:35,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:35,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:35,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:32:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:35,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 07:32:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:35,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:32:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:35,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:32:35,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:32:35,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065923207] [2024-11-16 07:32:35,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065923207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:32:35,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:32:35,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:32:35,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307775178] [2024-11-16 07:32:35,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:32:35,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:32:35,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:32:35,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:32:35,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:32:35,149 INFO L87 Difference]: Start difference. First operand 558 states and 889 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 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) [2024-11-16 07:32:38,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:32:38,929 INFO L93 Difference]: Finished difference Result 1368 states and 2263 transitions. [2024-11-16 07:32:38,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 07:32:38,929 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 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 74 [2024-11-16 07:32:38,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:32:38,933 INFO L225 Difference]: With dead ends: 1368 [2024-11-16 07:32:38,933 INFO L226 Difference]: Without dead ends: 826 [2024-11-16 07:32:38,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:32:38,936 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 771 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 2494 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 2683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 2494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-16 07:32:38,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 1404 Invalid, 2683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 2494 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-16 07:32:38,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2024-11-16 07:32:39,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 564. [2024-11-16 07:32:39,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 438 states have (on average 1.5844748858447488) internal successors, (694), 456 states have internal predecessors, (694), 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) [2024-11-16 07:32:39,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 895 transitions. [2024-11-16 07:32:39,030 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 895 transitions. Word has length 74 [2024-11-16 07:32:39,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:32:39,031 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 895 transitions. [2024-11-16 07:32:39,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 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) [2024-11-16 07:32:39,031 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 895 transitions. [2024-11-16 07:32:39,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-16 07:32:39,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:32:39,032 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] [2024-11-16 07:32:39,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 07:32:39,033 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:32:39,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:32:39,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1450768652, now seen corresponding path program 1 times [2024-11-16 07:32:39,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:32:39,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742565513] [2024-11-16 07:32:39,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:32:39,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:32:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:39,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:39,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:39,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:32:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:39,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:39,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:39,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:32:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:39,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 07:32:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:39,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:32:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:39,524 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:32:39,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:32:39,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742565513] [2024-11-16 07:32:39,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742565513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:32:39,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:32:39,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 07:32:39,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262642278] [2024-11-16 07:32:39,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:32:39,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 07:32:39,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:32:39,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 07:32:39,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:32:39,526 INFO L87 Difference]: Start difference. First operand 564 states and 895 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 07:32:44,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:32:44,476 INFO L93 Difference]: Finished difference Result 1377 states and 2270 transitions. [2024-11-16 07:32:44,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 07:32:44,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 74 [2024-11-16 07:32:44,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:32:44,482 INFO L225 Difference]: With dead ends: 1377 [2024-11-16 07:32:44,482 INFO L226 Difference]: Without dead ends: 820 [2024-11-16 07:32:44,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-16 07:32:44,485 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 1370 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 4475 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 4862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 4475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-16 07:32:44,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 2627 Invalid, 4862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 4475 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-16 07:32:44,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-11-16 07:32:44,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 558. [2024-11-16 07:32:44,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 432 states have (on average 1.5902777777777777) internal successors, (687), 450 states have internal predecessors, (687), 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) [2024-11-16 07:32:44,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 888 transitions. [2024-11-16 07:32:44,583 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 888 transitions. Word has length 74 [2024-11-16 07:32:44,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:32:44,583 INFO L471 AbstractCegarLoop]: Abstraction has 558 states and 888 transitions. [2024-11-16 07:32:44,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 07:32:44,583 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 888 transitions. [2024-11-16 07:32:44,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-16 07:32:44,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:32:44,585 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] [2024-11-16 07:32:44,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 07:32:44,585 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:32:44,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:32:44,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1476576108, now seen corresponding path program 1 times [2024-11-16 07:32:44,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:32:44,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123813946] [2024-11-16 07:32:44,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:32:44,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:32:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:44,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:45,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:45,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:32:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:45,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:45,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:45,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 07:32:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:45,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:32:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:45,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 07:32:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:45,134 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 07:32:45,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:32:45,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123813946] [2024-11-16 07:32:45,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123813946] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:32:45,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444848528] [2024-11-16 07:32:45,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:32:45,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:32:45,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:32:45,138 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) [2024-11-16 07:32:45,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 07:32:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:45,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 07:32:45,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:32:45,476 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 07:32:45,476 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:32:45,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444848528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:32:45,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:32:45,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-16 07:32:45,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276667120] [2024-11-16 07:32:45,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:32:45,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 07:32:45,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:32:45,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 07:32:45,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:32:45,478 INFO L87 Difference]: Start difference. First operand 558 states and 888 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 07:32:45,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:32:45,651 INFO L93 Difference]: Finished difference Result 1578 states and 2546 transitions. [2024-11-16 07:32:45,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 07:32:45,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (10), 2 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 [2024-11-16 07:32:45,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:32:45,657 INFO L225 Difference]: With dead ends: 1578 [2024-11-16 07:32:45,657 INFO L226 Difference]: Without dead ends: 1038 [2024-11-16 07:32:45,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:32:45,659 INFO L432 NwaCegarLoop]: 939 mSDtfsCounter, 774 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 1807 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:32:45,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 1807 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:32:45,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2024-11-16 07:32:45,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1022. [2024-11-16 07:32:45,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 797 states have (on average 1.6072772898368883) internal successors, (1281), 832 states have internal predecessors, (1281), 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) [2024-11-16 07:32:45,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1643 transitions. [2024-11-16 07:32:45,829 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1643 transitions. Word has length 75 [2024-11-16 07:32:45,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:32:45,830 INFO L471 AbstractCegarLoop]: Abstraction has 1022 states and 1643 transitions. [2024-11-16 07:32:45,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 07:32:45,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1643 transitions. [2024-11-16 07:32:45,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-16 07:32:45,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:32:45,831 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] [2024-11-16 07:32:45,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 07:32:46,032 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 [2024-11-16 07:32:46,032 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:32:46,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:32:46,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1154804579, now seen corresponding path program 1 times [2024-11-16 07:32:46,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:32:46,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487893124] [2024-11-16 07:32:46,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:32:46,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:32:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:46,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:46,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:46,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:32:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:46,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:46,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:46,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 07:32:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:46,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:32:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:46,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 07:32:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:46,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:32:46,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:32:46,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487893124] [2024-11-16 07:32:46,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487893124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:32:46,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:32:46,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 07:32:46,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942638343] [2024-11-16 07:32:46,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:32:46,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 07:32:46,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:32:46,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 07:32:46,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:32:46,587 INFO L87 Difference]: Start difference. First operand 1022 states and 1643 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 5 states have internal predecessors, (55), 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) [2024-11-16 07:32:54,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:32:54,559 INFO L93 Difference]: Finished difference Result 3941 states and 6784 transitions. [2024-11-16 07:32:54,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 07:32:54,560 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 5 states have internal predecessors, (55), 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 75 [2024-11-16 07:32:54,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:32:54,580 INFO L225 Difference]: With dead ends: 3941 [2024-11-16 07:32:54,580 INFO L226 Difference]: Without dead ends: 2937 [2024-11-16 07:32:54,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:32:54,586 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 3356 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 4534 mSolverCounterSat, 931 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3487 SdHoareTripleChecker+Valid, 2527 SdHoareTripleChecker+Invalid, 5465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 931 IncrementalHoareTripleChecker+Valid, 4534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-16 07:32:54,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3487 Valid, 2527 Invalid, 5465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [931 Valid, 4534 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-16 07:32:54,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2024-11-16 07:32:55,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 2407. [2024-11-16 07:32:55,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 1771 states have (on average 1.5844155844155845) internal successors, (2806), 1902 states have internal predecessors, (2806), 523 states have call successors, (523), 84 states have call predecessors, (523), 112 states have return successors, (823), 520 states have call predecessors, (823), 519 states have call successors, (823) [2024-11-16 07:32:55,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 4152 transitions. [2024-11-16 07:32:55,117 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 4152 transitions. Word has length 75 [2024-11-16 07:32:55,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:32:55,118 INFO L471 AbstractCegarLoop]: Abstraction has 2407 states and 4152 transitions. [2024-11-16 07:32:55,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 5 states have internal predecessors, (55), 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) [2024-11-16 07:32:55,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 4152 transitions. [2024-11-16 07:32:55,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-16 07:32:55,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:32:55,119 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, 1] [2024-11-16 07:32:55,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 07:32:55,119 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:32:55,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:32:55,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1594363004, now seen corresponding path program 1 times [2024-11-16 07:32:55,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:32:55,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975689419] [2024-11-16 07:32:55,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:32:55,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:32:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:55,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:55,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:55,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:55,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:32:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:55,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:32:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:55,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:32:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:55,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 07:32:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:55,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:32:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:55,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 07:32:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:32:55,517 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 07:32:55,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:32:55,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975689419] [2024-11-16 07:32:55,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975689419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:32:55,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:32:55,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:32:55,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330537127] [2024-11-16 07:32:55,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:32:55,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:32:55,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:32:55,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:32:55,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:32:55,519 INFO L87 Difference]: Start difference. First operand 2407 states and 4152 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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)