./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 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../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.dk.eval-assert-order-craig-803cd42-m [2024-11-22 01:47:54,710 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 01:47:54,772 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 01:47:54,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 01:47:54,781 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 01:47:54,803 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 01:47:54,804 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 01:47:54,804 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 01:47:54,805 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 01:47:54,805 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 01:47:54,805 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 01:47:54,806 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 01:47:54,806 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 01:47:54,807 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 01:47:54,809 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 01:47:54,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 01:47:54,810 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 01:47:54,810 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 01:47:54,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 01:47:54,811 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 01:47:54,811 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 01:47:54,815 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 01:47:54,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 01:47:54,816 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 01:47:54,816 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 01:47:54,816 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 01:47:54,817 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 01:47:54,817 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 01:47:54,817 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 01:47:54,817 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 01:47:54,818 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 01:47:54,818 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 01:47:54,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:47:54,818 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 01:47:54,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 01:47:54,819 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 01:47:54,821 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 01:47:54,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 01:47:54,822 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 01:47:54,822 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 01:47:54,822 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 01:47:54,822 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 01:47:54,823 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b60f36c6abb85551baa468c8faf905605a37519376312e75fd6944689b1d0b8d [2024-11-22 01:47:55,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 01:47:55,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 01:47:55,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 01:47:55,139 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 01:47:55,140 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 01:47:55,141 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product18.cil.c [2024-11-22 01:47:56,684 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 01:47:56,996 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 01:47:56,996 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product18.cil.c [2024-11-22 01:47:57,018 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc1609171/6d69828d77374f78a8ebb5fd36129b6f/FLAG226aede9c [2024-11-22 01:47:57,036 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc1609171/6d69828d77374f78a8ebb5fd36129b6f [2024-11-22 01:47:57,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 01:47:57,039 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 01:47:57,042 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 01:47:57,042 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 01:47:57,049 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 01:47:57,050 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:47:57" (1/1) ... [2024-11-22 01:47:57,051 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f1279c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:57, skipping insertion in model container [2024-11-22 01:47:57,052 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:47:57" (1/1) ... [2024-11-22 01:47:57,126 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 01:47:57,580 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] [2024-11-22 01:47:57,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:47:57,726 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 01:47:57,736 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-11-22 01:47:57,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [86] [2024-11-22 01:47:57,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [452] [2024-11-22 01:47:57,739 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1120] [2024-11-22 01:47:57,739 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1476] [2024-11-22 01:47:57,739 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1485] [2024-11-22 01:47:57,740 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2984] [2024-11-22 01:47:57,740 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [3102] [2024-11-22 01:47:57,740 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3288] [2024-11-22 01:47:57,741 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3303] [2024-11-22 01:47:57,786 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] [2024-11-22 01:47:57,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:47:57,861 INFO L204 MainTranslator]: Completed translation [2024-11-22 01:47:57,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:57 WrapperNode [2024-11-22 01:47:57,862 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 01:47:57,863 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 01:47:57,863 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 01:47:57,863 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 01:47:57,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:57" (1/1) ... [2024-11-22 01:47:57,908 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:57" (1/1) ... [2024-11-22 01:47:57,967 INFO L138 Inliner]: procedures = 90, calls = 344, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 818 [2024-11-22 01:47:57,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 01:47:57,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 01:47:57,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 01:47:57,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 01:47:57,987 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:57" (1/1) ... [2024-11-22 01:47:57,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:57" (1/1) ... [2024-11-22 01:47:57,992 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:57" (1/1) ... [2024-11-22 01:47:58,031 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]. [2024-11-22 01:47:58,031 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:57" (1/1) ... [2024-11-22 01:47:58,032 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:57" (1/1) ... [2024-11-22 01:47:58,061 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:57" (1/1) ... [2024-11-22 01:47:58,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:57" (1/1) ... [2024-11-22 01:47:58,081 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:57" (1/1) ... [2024-11-22 01:47:58,087 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:57" (1/1) ... [2024-11-22 01:47:58,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 01:47:58,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 01:47:58,098 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 01:47:58,098 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 01:47:58,099 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:57" (1/1) ... [2024-11-22 01:47:58,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:47:58,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:47:58,139 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) [2024-11-22 01:47:58,141 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 [2024-11-22 01:47:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 01:47:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2024-11-22 01:47:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2024-11-22 01:47:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-22 01:47:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-22 01:47:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-22 01:47:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-22 01:47:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-22 01:47:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-22 01:47:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-22 01:47:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-22 01:47:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-22 01:47:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-22 01:47:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-22 01:47:58,179 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-22 01:47:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-22 01:47:58,179 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-22 01:47:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-22 01:47:58,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-22 01:47:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-22 01:47:58,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-22 01:47:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-22 01:47:58,180 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-22 01:47:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-22 01:47:58,180 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-22 01:47:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2024-11-22 01:47:58,180 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2024-11-22 01:47:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-22 01:47:58,181 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-22 01:47:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-22 01:47:58,181 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-22 01:47:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2024-11-22 01:47:58,181 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2024-11-22 01:47:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-22 01:47:58,181 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-22 01:47:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-22 01:47:58,182 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-22 01:47:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-22 01:47:58,182 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-22 01:47:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 01:47:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 01:47:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 01:47:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 01:47:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 01:47:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 01:47:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 01:47:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 01:47:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-22 01:47:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-22 01:47:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-22 01:47:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-22 01:47:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-22 01:47:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-22 01:47:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-22 01:47:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-22 01:47:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-22 01:47:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-22 01:47:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-22 01:47:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-22 01:47:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__weight [2024-11-22 01:47:58,185 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__weight [2024-11-22 01:47:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-22 01:47:58,185 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-22 01:47:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-22 01:47:58,185 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-22 01:47:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-22 01:47:58,185 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-22 01:47:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-22 01:47:58,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-22 01:47:58,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 01:47:58,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 01:47:58,186 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-22 01:47:58,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-22 01:47:58,367 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 01:47:58,369 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 01:47:59,667 INFO L? ?]: Removed 439 outVars from TransFormulas that were not future-live. [2024-11-22 01:47:59,668 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 01:47:59,705 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 01:47:59,707 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 01:47:59,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:47:59 BoogieIcfgContainer [2024-11-22 01:47:59,708 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 01:47:59,710 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 01:47:59,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 01:47:59,714 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 01:47:59,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:47:57" (1/3) ... [2024-11-22 01:47:59,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a50ded4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:47:59, skipping insertion in model container [2024-11-22 01:47:59,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:57" (2/3) ... [2024-11-22 01:47:59,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a50ded4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:47:59, skipping insertion in model container [2024-11-22 01:47:59,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:47:59" (3/3) ... [2024-11-22 01:47:59,719 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product18.cil.c [2024-11-22 01:47:59,734 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 01:47:59,735 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 01:47:59,818 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 01:47:59,827 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;@6c96733a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 01:47:59,828 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 01:47:59,837 INFO L276 IsEmpty]: Start isEmpty. Operand has 569 states, 440 states have (on average 1.684090909090909) internal successors, (741), 460 states have internal predecessors, (741), 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) [2024-11-22 01:47:59,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-22 01:47:59,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:47:59,856 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:47:59,857 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:47:59,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:47:59,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1004821235, now seen corresponding path program 1 times [2024-11-22 01:47:59,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:47:59,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230955332] [2024-11-22 01:47:59,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:47:59,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:00,577 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:00,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:00,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230955332] [2024-11-22 01:48:00,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230955332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:00,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:00,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:48:00,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724597399] [2024-11-22 01:48:00,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:00,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:48:00,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:00,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:48:00,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:00,624 INFO L87 Difference]: Start difference. First operand has 569 states, 440 states have (on average 1.684090909090909) internal successors, (741), 460 states have internal predecessors, (741), 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 7 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:48:00,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:00,909 INFO L93 Difference]: Finished difference Result 1135 states and 1902 transitions. [2024-11-22 01:48:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:48:00,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 63 [2024-11-22 01:48:00,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:00,938 INFO L225 Difference]: With dead ends: 1135 [2024-11-22 01:48:00,939 INFO L226 Difference]: Without dead ends: 574 [2024-11-22 01:48:00,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:48:00,955 INFO L432 NwaCegarLoop]: 928 mSDtfsCounter, 91 mSDsluCounter, 4555 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5483 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:00,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5483 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:48:00,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-11-22 01:48:01,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 572. [2024-11-22 01:48:01,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 443 states have (on average 1.674943566591422) internal successors, (742), 463 states have internal predecessors, (742), 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) [2024-11-22 01:48:01,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 947 transitions. [2024-11-22 01:48:01,083 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 947 transitions. Word has length 63 [2024-11-22 01:48:01,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:01,085 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 947 transitions. [2024-11-22 01:48:01,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:48:01,086 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 947 transitions. [2024-11-22 01:48:01,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-22 01:48:01,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:01,094 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:48:01,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 01:48:01,095 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:01,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:01,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1059831445, now seen corresponding path program 1 times [2024-11-22 01:48:01,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:01,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947801905] [2024-11-22 01:48:01,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:01,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:01,405 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:01,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:01,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947801905] [2024-11-22 01:48:01,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947801905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:01,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:01,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:48:01,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056569289] [2024-11-22 01:48:01,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:01,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:48:01,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:01,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:48:01,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:01,412 INFO L87 Difference]: Start difference. First operand 572 states and 947 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:48:01,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:01,552 INFO L93 Difference]: Finished difference Result 1139 states and 1897 transitions. [2024-11-22 01:48:01,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:48:01,553 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 64 [2024-11-22 01:48:01,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:01,561 INFO L225 Difference]: With dead ends: 1139 [2024-11-22 01:48:01,561 INFO L226 Difference]: Without dead ends: 583 [2024-11-22 01:48:01,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:48:01,567 INFO L432 NwaCegarLoop]: 929 mSDtfsCounter, 90 mSDsluCounter, 4549 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 5478 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:01,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 5478 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:48:01,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-22 01:48:01,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 572. [2024-11-22 01:48:01,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 443 states have (on average 1.674943566591422) internal successors, (742), 463 states have internal predecessors, (742), 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) [2024-11-22 01:48:01,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 947 transitions. [2024-11-22 01:48:01,611 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 947 transitions. Word has length 64 [2024-11-22 01:48:01,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:01,612 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 947 transitions. [2024-11-22 01:48:01,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:48:01,613 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 947 transitions. [2024-11-22 01:48:01,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-22 01:48:01,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:01,617 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:48:01,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 01:48:01,617 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:01,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:01,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1766289498, now seen corresponding path program 1 times [2024-11-22 01:48:01,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:01,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727402977] [2024-11-22 01:48:01,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:01,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:01,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:01,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:01,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727402977] [2024-11-22 01:48:01,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727402977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:01,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:01,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:48:01,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444025447] [2024-11-22 01:48:01,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:01,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:48:01,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:01,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:48:01,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:01,762 INFO L87 Difference]: Start difference. First operand 572 states and 947 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:48:01,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:01,825 INFO L93 Difference]: Finished difference Result 1126 states and 1875 transitions. [2024-11-22 01:48:01,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:48:01,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 64 [2024-11-22 01:48:01,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:01,833 INFO L225 Difference]: With dead ends: 1126 [2024-11-22 01:48:01,834 INFO L226 Difference]: Without dead ends: 542 [2024-11-22 01:48:01,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:48:01,838 INFO L432 NwaCegarLoop]: 917 mSDtfsCounter, 14 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:01,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2746 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:01,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-11-22 01:48:01,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 542. [2024-11-22 01:48:01,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 416 states have (on average 1.6586538461538463) internal successors, (690), 434 states have internal predecessors, (690), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-22 01:48:01,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 891 transitions. [2024-11-22 01:48:01,867 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 891 transitions. Word has length 64 [2024-11-22 01:48:01,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:01,867 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 891 transitions. [2024-11-22 01:48:01,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:48:01,868 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 891 transitions. [2024-11-22 01:48:01,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 01:48:01,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:01,869 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:48:01,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 01:48:01,870 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:01,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:01,870 INFO L85 PathProgramCache]: Analyzing trace with hash -373779407, now seen corresponding path program 1 times [2024-11-22 01:48:01,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:01,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756192012] [2024-11-22 01:48:01,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:01,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:01,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:02,093 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:02,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:02,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756192012] [2024-11-22 01:48:02,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756192012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:02,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:02,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:48:02,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448396170] [2024-11-22 01:48:02,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:02,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:48:02,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:02,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:48:02,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:02,098 INFO L87 Difference]: Start difference. First operand 542 states and 891 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:48:02,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:02,196 INFO L93 Difference]: Finished difference Result 1077 states and 1781 transitions. [2024-11-22 01:48:02,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:48:02,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-22 01:48:02,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:02,203 INFO L225 Difference]: With dead ends: 1077 [2024-11-22 01:48:02,203 INFO L226 Difference]: Without dead ends: 536 [2024-11-22 01:48:02,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:48:02,212 INFO L432 NwaCegarLoop]: 881 mSDtfsCounter, 63 mSDsluCounter, 4347 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 5228 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:02,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 5228 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:02,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-22 01:48:02,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-11-22 01:48:02,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 410 states have (on average 1.6512195121951219) internal successors, (677), 428 states have internal predecessors, (677), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-22 01:48:02,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 878 transitions. [2024-11-22 01:48:02,245 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 878 transitions. Word has length 65 [2024-11-22 01:48:02,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:02,248 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 878 transitions. [2024-11-22 01:48:02,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:48:02,248 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 878 transitions. [2024-11-22 01:48:02,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 01:48:02,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:02,249 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:48:02,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 01:48:02,250 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:02,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:02,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1415589945, now seen corresponding path program 1 times [2024-11-22 01:48:02,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:02,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802200524] [2024-11-22 01:48:02,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:02,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:02,487 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:02,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:02,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802200524] [2024-11-22 01:48:02,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802200524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:02,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:02,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:48:02,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799255550] [2024-11-22 01:48:02,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:02,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:48:02,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:02,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:48:02,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:02,490 INFO L87 Difference]: Start difference. First operand 536 states and 878 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:48:02,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:02,579 INFO L93 Difference]: Finished difference Result 1065 states and 1755 transitions. [2024-11-22 01:48:02,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:48:02,580 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 66 [2024-11-22 01:48:02,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:02,586 INFO L225 Difference]: With dead ends: 1065 [2024-11-22 01:48:02,587 INFO L226 Difference]: Without dead ends: 530 [2024-11-22 01:48:02,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:48:02,591 INFO L432 NwaCegarLoop]: 869 mSDtfsCounter, 49 mSDsluCounter, 4299 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 5168 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:02,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 5168 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:02,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-22 01:48:02,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2024-11-22 01:48:02,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 404 states have (on average 1.6435643564356435) internal successors, (664), 422 states have internal predecessors, (664), 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) [2024-11-22 01:48:02,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 865 transitions. [2024-11-22 01:48:02,616 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 865 transitions. Word has length 66 [2024-11-22 01:48:02,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:02,616 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 865 transitions. [2024-11-22 01:48:02,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:48:02,617 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 865 transitions. [2024-11-22 01:48:02,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 01:48:02,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:02,618 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:48:02,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 01:48:02,619 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:02,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:02,619 INFO L85 PathProgramCache]: Analyzing trace with hash -246749190, now seen corresponding path program 1 times [2024-11-22 01:48:02,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:02,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991336362] [2024-11-22 01:48:02,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:02,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:02,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:02,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:02,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991336362] [2024-11-22 01:48:02,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991336362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:02,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:02,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:48:02,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629814597] [2024-11-22 01:48:02,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:02,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:48:02,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:02,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:48:02,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:02,831 INFO L87 Difference]: Start difference. First operand 530 states and 865 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:48:02,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:02,896 INFO L93 Difference]: Finished difference Result 1053 states and 1729 transitions. [2024-11-22 01:48:02,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:48:02,897 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 66 [2024-11-22 01:48:02,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:02,901 INFO L225 Difference]: With dead ends: 1053 [2024-11-22 01:48:02,901 INFO L226 Difference]: Without dead ends: 530 [2024-11-22 01:48:02,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:48:02,905 INFO L432 NwaCegarLoop]: 857 mSDtfsCounter, 24 mSDsluCounter, 4263 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 5120 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:02,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 5120 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:02,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-22 01:48:02,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2024-11-22 01:48:02,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 404 states have (on average 1.641089108910891) internal successors, (663), 422 states have internal predecessors, (663), 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) [2024-11-22 01:48:02,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 864 transitions. [2024-11-22 01:48:02,925 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 864 transitions. Word has length 66 [2024-11-22 01:48:02,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:02,926 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 864 transitions. [2024-11-22 01:48:02,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:48:02,926 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 864 transitions. [2024-11-22 01:48:02,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 01:48:02,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:02,927 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] [2024-11-22 01:48:02,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 01:48:02,928 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:02,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:02,928 INFO L85 PathProgramCache]: Analyzing trace with hash 38130517, now seen corresponding path program 1 times [2024-11-22 01:48:02,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:02,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686754672] [2024-11-22 01:48:02,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:02,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:03,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:03,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:03,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686754672] [2024-11-22 01:48:03,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686754672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:03,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:03,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:48:03,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337962360] [2024-11-22 01:48:03,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:03,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:48:03,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:03,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:48:03,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:03,034 INFO L87 Difference]: Start difference. First operand 530 states and 864 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:48:03,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:03,082 INFO L93 Difference]: Finished difference Result 1044 states and 1714 transitions. [2024-11-22 01:48:03,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:48:03,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2024-11-22 01:48:03,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:03,091 INFO L225 Difference]: With dead ends: 1044 [2024-11-22 01:48:03,091 INFO L226 Difference]: Without dead ends: 530 [2024-11-22 01:48:03,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:03,095 INFO L432 NwaCegarLoop]: 849 mSDtfsCounter, 15 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2532 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:03,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2532 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:03,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-22 01:48:03,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2024-11-22 01:48:03,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 404 states have (on average 1.6386138613861385) internal successors, (662), 422 states have internal predecessors, (662), 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) [2024-11-22 01:48:03,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 863 transitions. [2024-11-22 01:48:03,122 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 863 transitions. Word has length 67 [2024-11-22 01:48:03,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:03,123 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 863 transitions. [2024-11-22 01:48:03,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:48:03,124 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 863 transitions. [2024-11-22 01:48:03,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 01:48:03,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:03,125 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] [2024-11-22 01:48:03,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 01:48:03,126 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:03,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:03,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1489030297, now seen corresponding path program 1 times [2024-11-22 01:48:03,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:03,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029038782] [2024-11-22 01:48:03,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:03,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:03,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:03,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:03,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029038782] [2024-11-22 01:48:03,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029038782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:03,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:03,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:48:03,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796571136] [2024-11-22 01:48:03,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:03,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:48:03,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:03,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:48:03,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:03,265 INFO L87 Difference]: Start difference. First operand 530 states and 863 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:48:03,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:03,312 INFO L93 Difference]: Finished difference Result 1044 states and 1712 transitions. [2024-11-22 01:48:03,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:48:03,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-11-22 01:48:03,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:03,317 INFO L225 Difference]: With dead ends: 1044 [2024-11-22 01:48:03,317 INFO L226 Difference]: Without dead ends: 530 [2024-11-22 01:48:03,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:03,321 INFO L432 NwaCegarLoop]: 850 mSDtfsCounter, 14 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2534 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:03,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2534 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:03,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-22 01:48:03,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2024-11-22 01:48:03,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 404 states have (on average 1.636138613861386) internal successors, (661), 422 states have internal predecessors, (661), 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) [2024-11-22 01:48:03,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 862 transitions. [2024-11-22 01:48:03,341 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 862 transitions. Word has length 68 [2024-11-22 01:48:03,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:03,341 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 862 transitions. [2024-11-22 01:48:03,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:48:03,342 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 862 transitions. [2024-11-22 01:48:03,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 01:48:03,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:03,343 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] [2024-11-22 01:48:03,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 01:48:03,343 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:03,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:03,344 INFO L85 PathProgramCache]: Analyzing trace with hash -740246886, now seen corresponding path program 1 times [2024-11-22 01:48:03,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:03,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391484272] [2024-11-22 01:48:03,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:03,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:03,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:03,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:03,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391484272] [2024-11-22 01:48:03,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391484272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:03,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:03,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:48:03,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187476623] [2024-11-22 01:48:03,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:03,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:48:03,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:03,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:48:03,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:03,454 INFO L87 Difference]: Start difference. First operand 530 states and 862 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:48:03,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:03,500 INFO L93 Difference]: Finished difference Result 1044 states and 1710 transitions. [2024-11-22 01:48:03,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:48:03,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2024-11-22 01:48:03,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:03,507 INFO L225 Difference]: With dead ends: 1044 [2024-11-22 01:48:03,507 INFO L226 Difference]: Without dead ends: 530 [2024-11-22 01:48:03,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:03,512 INFO L432 NwaCegarLoop]: 851 mSDtfsCounter, 13 mSDsluCounter, 1685 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2536 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:03,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2536 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:03,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-22 01:48:03,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2024-11-22 01:48:03,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 404 states have (on average 1.6336633663366336) internal successors, (660), 422 states have internal predecessors, (660), 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) [2024-11-22 01:48:03,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 861 transitions. [2024-11-22 01:48:03,535 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 861 transitions. Word has length 69 [2024-11-22 01:48:03,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:03,536 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 861 transitions. [2024-11-22 01:48:03,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:48:03,536 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 861 transitions. [2024-11-22 01:48:03,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-22 01:48:03,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:03,537 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] [2024-11-22 01:48:03,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 01:48:03,538 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:03,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:03,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1090892930, now seen corresponding path program 1 times [2024-11-22 01:48:03,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:03,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422076326] [2024-11-22 01:48:03,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:03,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:03,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:03,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:03,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:03,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422076326] [2024-11-22 01:48:03,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422076326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:03,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:03,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:48:03,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087461840] [2024-11-22 01:48:03,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:03,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:48:03,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:03,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:48:03,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:03,642 INFO L87 Difference]: Start difference. First operand 530 states and 861 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:48:03,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:03,701 INFO L93 Difference]: Finished difference Result 1044 states and 1708 transitions. [2024-11-22 01:48:03,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:48:03,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2024-11-22 01:48:03,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:03,706 INFO L225 Difference]: With dead ends: 1044 [2024-11-22 01:48:03,706 INFO L226 Difference]: Without dead ends: 530 [2024-11-22 01:48:03,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:03,710 INFO L432 NwaCegarLoop]: 852 mSDtfsCounter, 12 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:03,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2538 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:03,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-22 01:48:03,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2024-11-22 01:48:03,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 404 states have (on average 1.631188118811881) internal successors, (659), 422 states have internal predecessors, (659), 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) [2024-11-22 01:48:03,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 860 transitions. [2024-11-22 01:48:03,729 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 860 transitions. Word has length 70 [2024-11-22 01:48:03,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:03,730 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 860 transitions. [2024-11-22 01:48:03,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:48:03,730 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 860 transitions. [2024-11-22 01:48:03,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-22 01:48:03,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:03,731 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] [2024-11-22 01:48:03,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 01:48:03,732 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:03,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:03,732 INFO L85 PathProgramCache]: Analyzing trace with hash 961451487, now seen corresponding path program 1 times [2024-11-22 01:48:03,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:03,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425550499] [2024-11-22 01:48:03,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:03,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:03,927 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 01:48:03,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:03,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425550499] [2024-11-22 01:48:03,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425550499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:48:03,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747931223] [2024-11-22 01:48:03,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:03,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:48:03,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:48:03,932 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) [2024-11-22 01:48:03,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 01:48:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:04,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 1487 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 01:48:04,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:48:04,328 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:48:04,328 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:48:04,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747931223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:04,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:48:04,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 01:48:04,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385922058] [2024-11-22 01:48:04,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:04,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:48:04,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:04,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:48:04,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:04,330 INFO L87 Difference]: Start difference. First operand 530 states and 860 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:48:04,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:04,396 INFO L93 Difference]: Finished difference Result 1502 states and 2470 transitions. [2024-11-22 01:48:04,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:48:04,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 71 [2024-11-22 01:48:04,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:04,404 INFO L225 Difference]: With dead ends: 1502 [2024-11-22 01:48:04,405 INFO L226 Difference]: Without dead ends: 990 [2024-11-22 01:48:04,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:04,410 INFO L432 NwaCegarLoop]: 869 mSDtfsCounter, 825 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:04,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 1626 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:04,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2024-11-22 01:48:04,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 975. [2024-11-22 01:48:04,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 750 states have (on average 1.6453333333333333) internal successors, (1234), 785 states have internal predecessors, (1234), 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) [2024-11-22 01:48:04,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1596 transitions. [2024-11-22 01:48:04,473 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1596 transitions. Word has length 71 [2024-11-22 01:48:04,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:04,474 INFO L471 AbstractCegarLoop]: Abstraction has 975 states and 1596 transitions. [2024-11-22 01:48:04,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:48:04,474 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1596 transitions. [2024-11-22 01:48:04,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-22 01:48:04,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:04,476 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] [2024-11-22 01:48:04,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 01:48:04,676 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,SelfDestructingSolverStorable10 [2024-11-22 01:48:04,677 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:04,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:04,678 INFO L85 PathProgramCache]: Analyzing trace with hash 578313413, now seen corresponding path program 1 times [2024-11-22 01:48:04,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:04,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710751926] [2024-11-22 01:48:04,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:04,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:04,872 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 01:48:04,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:04,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710751926] [2024-11-22 01:48:04,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710751926] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:48:04,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47585165] [2024-11-22 01:48:04,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:04,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:48:04,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:48:04,875 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:48:04,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 01:48:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:05,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 1488 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 01:48:05,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:48:05,266 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:48:05,266 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:48:05,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47585165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:05,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:48:05,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 01:48:05,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995419188] [2024-11-22 01:48:05,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:05,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:48:05,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:05,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:48:05,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:05,268 INFO L87 Difference]: Start difference. First operand 975 states and 1596 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:48:05,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:05,353 INFO L93 Difference]: Finished difference Result 2392 states and 3944 transitions. [2024-11-22 01:48:05,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:48:05,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 72 [2024-11-22 01:48:05,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:05,366 INFO L225 Difference]: With dead ends: 2392 [2024-11-22 01:48:05,367 INFO L226 Difference]: Without dead ends: 1435 [2024-11-22 01:48:05,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:05,374 INFO L432 NwaCegarLoop]: 927 mSDtfsCounter, 825 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:05,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 1683 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:05,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1435 states. [2024-11-22 01:48:05,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1435 to 1387. [2024-11-22 01:48:05,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 1069 states have (on average 1.6585594013096352) internal successors, (1773), 1121 states have internal predecessors, (1773), 255 states have call successors, (255), 62 states have call predecessors, (255), 62 states have return successors, (262), 245 states have call predecessors, (262), 252 states have call successors, (262) [2024-11-22 01:48:05,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 2290 transitions. [2024-11-22 01:48:05,440 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 2290 transitions. Word has length 72 [2024-11-22 01:48:05,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:05,441 INFO L471 AbstractCegarLoop]: Abstraction has 1387 states and 2290 transitions. [2024-11-22 01:48:05,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:48:05,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 2290 transitions. [2024-11-22 01:48:05,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 01:48:05,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:05,443 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] [2024-11-22 01:48:05,454 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 01:48:05,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-22 01:48:05,643 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:05,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:05,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1235557642, now seen corresponding path program 1 times [2024-11-22 01:48:05,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:05,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122985879] [2024-11-22 01:48:05,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:05,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:05,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:05,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:05,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122985879] [2024-11-22 01:48:05,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122985879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:05,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:05,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:48:05,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89013543] [2024-11-22 01:48:05,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:05,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:48:05,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:05,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:48:05,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:48:05,829 INFO L87 Difference]: Start difference. First operand 1387 states and 2290 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 01:48:06,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:06,398 INFO L93 Difference]: Finished difference Result 4097 states and 6895 transitions. [2024-11-22 01:48:06,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:48:06,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 74 [2024-11-22 01:48:06,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:06,423 INFO L225 Difference]: With dead ends: 4097 [2024-11-22 01:48:06,423 INFO L226 Difference]: Without dead ends: 2728 [2024-11-22 01:48:06,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:48:06,435 INFO L432 NwaCegarLoop]: 971 mSDtfsCounter, 851 mSDsluCounter, 3494 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 4465 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:06,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 4465 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 01:48:06,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2728 states. [2024-11-22 01:48:06,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2728 to 2681. [2024-11-22 01:48:06,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2681 states, 2071 states have (on average 1.662481892805408) internal successors, (3443), 2171 states have internal predecessors, (3443), 489 states have call successors, (489), 118 states have call predecessors, (489), 120 states have return successors, (577), 475 states have call predecessors, (577), 485 states have call successors, (577) [2024-11-22 01:48:06,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 4509 transitions. [2024-11-22 01:48:06,598 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 4509 transitions. Word has length 74 [2024-11-22 01:48:06,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:06,598 INFO L471 AbstractCegarLoop]: Abstraction has 2681 states and 4509 transitions. [2024-11-22 01:48:06,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 01:48:06,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 4509 transitions. [2024-11-22 01:48:06,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-22 01:48:06,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:06,601 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] [2024-11-22 01:48:06,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 01:48:06,602 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:06,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:06,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1322679182, now seen corresponding path program 1 times [2024-11-22 01:48:06,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:06,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521703562] [2024-11-22 01:48:06,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:06,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:06,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 01:48:06,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:06,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521703562] [2024-11-22 01:48:06,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521703562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:48:06,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176615609] [2024-11-22 01:48:06,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:06,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:48:06,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:48:06,777 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:48:06,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 01:48:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:07,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 01:48:07,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:48:07,231 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:48:07,232 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:48:07,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176615609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:07,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:48:07,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2024-11-22 01:48:07,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121966361] [2024-11-22 01:48:07,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:07,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:48:07,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:07,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:48:07,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:48:07,234 INFO L87 Difference]: Start difference. First operand 2681 states and 4509 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-22 01:48:07,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:07,722 INFO L93 Difference]: Finished difference Result 7234 states and 12366 transitions. [2024-11-22 01:48:07,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:48:07,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 75 [2024-11-22 01:48:07,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:07,762 INFO L225 Difference]: With dead ends: 7234 [2024-11-22 01:48:07,763 INFO L226 Difference]: Without dead ends: 4571 [2024-11-22 01:48:07,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:48:07,787 INFO L432 NwaCegarLoop]: 837 mSDtfsCounter, 724 mSDsluCounter, 2411 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 3248 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:07,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 3248 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 01:48:07,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4571 states. [2024-11-22 01:48:07,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4571 to 4528. [2024-11-22 01:48:07,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4528 states, 3496 states have (on average 1.6144164759725401) internal successors, (5644), 3662 states have internal predecessors, (5644), 814 states have call successors, (814), 210 states have call predecessors, (814), 217 states have return successors, (1070), 795 states have call predecessors, (1070), 808 states have call successors, (1070) [2024-11-22 01:48:08,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4528 states to 4528 states and 7528 transitions. [2024-11-22 01:48:08,013 INFO L78 Accepts]: Start accepts. Automaton has 4528 states and 7528 transitions. Word has length 75 [2024-11-22 01:48:08,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:08,014 INFO L471 AbstractCegarLoop]: Abstraction has 4528 states and 7528 transitions. [2024-11-22 01:48:08,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-22 01:48:08,014 INFO L276 IsEmpty]: Start isEmpty. Operand 4528 states and 7528 transitions. [2024-11-22 01:48:08,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-22 01:48:08,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:08,017 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] [2024-11-22 01:48:08,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 01:48:08,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:48:08,218 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:08,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:08,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1577052075, now seen corresponding path program 1 times [2024-11-22 01:48:08,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:08,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442427768] [2024-11-22 01:48:08,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:08,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:08,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:08,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:08,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442427768] [2024-11-22 01:48:08,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442427768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:08,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:08,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:48:08,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127644814] [2024-11-22 01:48:08,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:08,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:48:08,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:08,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:48:08,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:08,359 INFO L87 Difference]: Start difference. First operand 4528 states and 7528 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2024-11-22 01:48:08,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:08,645 INFO L93 Difference]: Finished difference Result 9062 states and 15221 transitions. [2024-11-22 01:48:08,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:48:08,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 [2024-11-22 01:48:08,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:08,690 INFO L225 Difference]: With dead ends: 9062 [2024-11-22 01:48:08,691 INFO L226 Difference]: Without dead ends: 4552 [2024-11-22 01:48:08,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:48:08,723 INFO L432 NwaCegarLoop]: 843 mSDtfsCounter, 12 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2504 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:08,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2504 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:48:08,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4552 states. [2024-11-22 01:48:08,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4552 to 4536. [2024-11-22 01:48:08,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4536 states, 3502 states have (on average 1.6127926898914906) internal successors, (5648), 3668 states have internal predecessors, (5648), 814 states have call successors, (814), 214 states have call predecessors, (814), 219 states have return successors, (1057), 793 states have call predecessors, (1057), 808 states have call successors, (1057) [2024-11-22 01:48:09,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4536 states to 4536 states and 7519 transitions. [2024-11-22 01:48:09,012 INFO L78 Accepts]: Start accepts. Automaton has 4536 states and 7519 transitions. Word has length 75 [2024-11-22 01:48:09,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:09,013 INFO L471 AbstractCegarLoop]: Abstraction has 4536 states and 7519 transitions. [2024-11-22 01:48:09,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2024-11-22 01:48:09,013 INFO L276 IsEmpty]: Start isEmpty. Operand 4536 states and 7519 transitions. [2024-11-22 01:48:09,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-22 01:48:09,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:09,015 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:48:09,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 01:48:09,015 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:09,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:09,016 INFO L85 PathProgramCache]: Analyzing trace with hash 933412143, now seen corresponding path program 1 times [2024-11-22 01:48:09,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:09,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617653713] [2024-11-22 01:48:09,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:09,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:09,164 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 01:48:09,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:09,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617653713] [2024-11-22 01:48:09,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617653713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:09,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:09,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:48:09,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291503175] [2024-11-22 01:48:09,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:09,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:48:09,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:09,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:48:09,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:48:09,167 INFO L87 Difference]: Start difference. First operand 4536 states and 7519 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 01:48:09,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:09,992 INFO L93 Difference]: Finished difference Result 13559 states and 23285 transitions. [2024-11-22 01:48:09,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:48:09,993 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 83 [2024-11-22 01:48:09,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:10,083 INFO L225 Difference]: With dead ends: 13559 [2024-11-22 01:48:10,083 INFO L226 Difference]: Without dead ends: 9041 [2024-11-22 01:48:10,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:48:10,108 INFO L432 NwaCegarLoop]: 930 mSDtfsCounter, 846 mSDsluCounter, 3377 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 4307 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:10,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 4307 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 01:48:10,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9041 states. [2024-11-22 01:48:10,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9041 to 8972. [2024-11-22 01:48:10,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8972 states, 6934 states have (on average 1.6104701471012404) internal successors, (11167), 7260 states have internal predecessors, (11167), 1600 states have call successors, (1600), 422 states have call predecessors, (1600), 437 states have return successors, (2521), 1569 states have call predecessors, (2521), 1590 states have call successors, (2521) [2024-11-22 01:48:10,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 15288 transitions. [2024-11-22 01:48:10,638 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 15288 transitions. Word has length 83 [2024-11-22 01:48:10,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:10,639 INFO L471 AbstractCegarLoop]: Abstraction has 8972 states and 15288 transitions. [2024-11-22 01:48:10,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 01:48:10,640 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 15288 transitions. [2024-11-22 01:48:10,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-22 01:48:10,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:10,642 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:48:10,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 01:48:10,642 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:10,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:10,643 INFO L85 PathProgramCache]: Analyzing trace with hash -12224914, now seen corresponding path program 1 times [2024-11-22 01:48:10,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:10,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933266854] [2024-11-22 01:48:10,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:10,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:10,735 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 01:48:10,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:10,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933266854] [2024-11-22 01:48:10,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933266854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:10,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:10,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:48:10,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296250852] [2024-11-22 01:48:10,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:10,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:48:10,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:10,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:48:10,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:10,738 INFO L87 Difference]: Start difference. First operand 8972 states and 15288 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:48:11,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:11,441 INFO L93 Difference]: Finished difference Result 17998 states and 31129 transitions. [2024-11-22 01:48:11,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:48:11,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2024-11-22 01:48:11,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:11,540 INFO L225 Difference]: With dead ends: 17998 [2024-11-22 01:48:11,540 INFO L226 Difference]: Without dead ends: 9044 [2024-11-22 01:48:11,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:48:11,604 INFO L432 NwaCegarLoop]: 840 mSDtfsCounter, 12 mSDsluCounter, 1658 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2498 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:11,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2498 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:48:11,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9044 states. [2024-11-22 01:48:12,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9044 to 9012. [2024-11-22 01:48:12,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9012 states, 6970 states have (on average 1.6078909612625538) internal successors, (11207), 7288 states have internal predecessors, (11207), 1600 states have call successors, (1600), 438 states have call predecessors, (1600), 441 states have return successors, (2501), 1565 states have call predecessors, (2501), 1590 states have call successors, (2501) [2024-11-22 01:48:12,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9012 states to 9012 states and 15308 transitions. [2024-11-22 01:48:12,225 INFO L78 Accepts]: Start accepts. Automaton has 9012 states and 15308 transitions. Word has length 84 [2024-11-22 01:48:12,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:12,226 INFO L471 AbstractCegarLoop]: Abstraction has 9012 states and 15308 transitions. [2024-11-22 01:48:12,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 01:48:12,226 INFO L276 IsEmpty]: Start isEmpty. Operand 9012 states and 15308 transitions. [2024-11-22 01:48:12,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 01:48:12,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:12,229 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:48:12,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 01:48:12,230 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:12,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:12,230 INFO L85 PathProgramCache]: Analyzing trace with hash 126852297, now seen corresponding path program 1 times [2024-11-22 01:48:12,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:12,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80716884] [2024-11-22 01:48:12,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:12,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:12,394 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 01:48:12,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:12,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80716884] [2024-11-22 01:48:12,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80716884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:12,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:12,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:48:12,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324784737] [2024-11-22 01:48:12,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:12,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:48:12,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:12,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:48:12,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:48:12,398 INFO L87 Difference]: Start difference. First operand 9012 states and 15308 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:48:13,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:13,688 INFO L93 Difference]: Finished difference Result 27059 states and 48417 transitions. [2024-11-22 01:48:13,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:48:13,689 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 93 [2024-11-22 01:48:13,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:13,888 INFO L225 Difference]: With dead ends: 27059 [2024-11-22 01:48:13,889 INFO L226 Difference]: Without dead ends: 18065 [2024-11-22 01:48:13,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:48:13,961 INFO L432 NwaCegarLoop]: 930 mSDtfsCounter, 841 mSDsluCounter, 3388 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 4318 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:13,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 4318 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 01:48:13,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18065 states. [2024-11-22 01:48:14,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18065 to 17964. [2024-11-22 01:48:14,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17964 states, 13900 states have (on average 1.6049640287769784) internal successors, (22309), 14530 states have internal predecessors, (22309), 3178 states have call successors, (3178), 870 states have call predecessors, (3178), 885 states have return successors, (6322), 3123 states have call predecessors, (6322), 3160 states have call successors, (6322) [2024-11-22 01:48:15,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17964 states to 17964 states and 31809 transitions. [2024-11-22 01:48:15,193 INFO L78 Accepts]: Start accepts. Automaton has 17964 states and 31809 transitions. Word has length 93 [2024-11-22 01:48:15,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:15,194 INFO L471 AbstractCegarLoop]: Abstraction has 17964 states and 31809 transitions. [2024-11-22 01:48:15,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:48:15,194 INFO L276 IsEmpty]: Start isEmpty. Operand 17964 states and 31809 transitions. [2024-11-22 01:48:15,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-22 01:48:15,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:15,198 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:48:15,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 01:48:15,198 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:15,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:15,199 INFO L85 PathProgramCache]: Analyzing trace with hash -58477476, now seen corresponding path program 1 times [2024-11-22 01:48:15,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:15,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809357280] [2024-11-22 01:48:15,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:15,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:15,320 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-22 01:48:15,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:15,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809357280] [2024-11-22 01:48:15,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809357280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:15,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:15,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:48:15,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214570073] [2024-11-22 01:48:15,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:15,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:48:15,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:15,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:48:15,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:15,323 INFO L87 Difference]: Start difference. First operand 17964 states and 31809 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:48:16,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:16,594 INFO L93 Difference]: Finished difference Result 36054 states and 65362 transitions. [2024-11-22 01:48:16,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:48:16,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2024-11-22 01:48:16,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:16,762 INFO L225 Difference]: With dead ends: 36054 [2024-11-22 01:48:16,763 INFO L226 Difference]: Without dead ends: 18108 [2024-11-22 01:48:16,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:48:16,868 INFO L432 NwaCegarLoop]: 841 mSDtfsCounter, 11 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2501 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:16,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2501 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:48:16,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18108 states. [2024-11-22 01:48:17,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18108 to 18044. [2024-11-22 01:48:17,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18044 states, 13972 states have (on average 1.60241912396221) internal successors, (22389), 14602 states have internal predecessors, (22389), 3178 states have call successors, (3178), 886 states have call predecessors, (3178), 893 states have return successors, (6294), 3115 states have call predecessors, (6294), 3160 states have call successors, (6294) [2024-11-22 01:48:17,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18044 states to 18044 states and 31861 transitions. [2024-11-22 01:48:18,021 INFO L78 Accepts]: Start accepts. Automaton has 18044 states and 31861 transitions. Word has length 94 [2024-11-22 01:48:18,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:18,022 INFO L471 AbstractCegarLoop]: Abstraction has 18044 states and 31861 transitions. [2024-11-22 01:48:18,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:48:18,022 INFO L276 IsEmpty]: Start isEmpty. Operand 18044 states and 31861 transitions. [2024-11-22 01:48:18,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-22 01:48:18,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:18,026 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:48:18,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 01:48:18,027 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:18,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:18,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1562802759, now seen corresponding path program 1 times [2024-11-22 01:48:18,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:18,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496322989] [2024-11-22 01:48:18,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:18,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:18,288 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-22 01:48:18,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:18,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496322989] [2024-11-22 01:48:18,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496322989] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:48:18,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497514532] [2024-11-22 01:48:18,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:18,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:48:18,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:48:18,291 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:48:18,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 01:48:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:18,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 1836 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 01:48:18,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:48:18,992 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-22 01:48:18,993 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:48:18,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497514532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:18,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:48:18,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-22 01:48:18,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125207336] [2024-11-22 01:48:18,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:18,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:48:18,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:18,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:48:18,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-22 01:48:18,995 INFO L87 Difference]: Start difference. First operand 18044 states and 31861 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-22 01:48:24,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:24,529 INFO L93 Difference]: Finished difference Result 64573 states and 121245 transitions. [2024-11-22 01:48:24,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 01:48:24,530 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 128 [2024-11-22 01:48:24,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:25,271 INFO L225 Difference]: With dead ends: 64573 [2024-11-22 01:48:25,271 INFO L226 Difference]: Without dead ends: 46547 [2024-11-22 01:48:25,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2024-11-22 01:48:25,416 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 2957 mSDsluCounter, 1794 mSDsCounter, 0 mSdLazyCounter, 6229 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3124 SdHoareTripleChecker+Valid, 2423 SdHoareTripleChecker+Invalid, 6872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 6229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:25,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3124 Valid, 2423 Invalid, 6872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 6229 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-22 01:48:25,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46547 states. [2024-11-22 01:48:27,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46547 to 45862. [2024-11-22 01:48:27,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45862 states, 35556 states have (on average 1.594639442006975) internal successors, (56699), 37082 states have internal predecessors, (56699), 7956 states have call successors, (7956), 2206 states have call predecessors, (7956), 2349 states have return successors, (19445), 7941 states have call predecessors, (19445), 7922 states have call successors, (19445) [2024-11-22 01:48:28,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45862 states to 45862 states and 84100 transitions. [2024-11-22 01:48:28,684 INFO L78 Accepts]: Start accepts. Automaton has 45862 states and 84100 transitions. Word has length 128 [2024-11-22 01:48:28,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:28,685 INFO L471 AbstractCegarLoop]: Abstraction has 45862 states and 84100 transitions. [2024-11-22 01:48:28,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-22 01:48:28,685 INFO L276 IsEmpty]: Start isEmpty. Operand 45862 states and 84100 transitions. [2024-11-22 01:48:28,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 01:48:28,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:28,686 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:48:28,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 01:48:28,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:48:28,888 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:28,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:28,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1258819056, now seen corresponding path program 1 times [2024-11-22 01:48:28,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:28,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970992304] [2024-11-22 01:48:28,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:28,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:29,054 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-22 01:48:29,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:29,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970992304] [2024-11-22 01:48:29,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970992304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:29,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:29,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:48:29,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500244426] [2024-11-22 01:48:29,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:29,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:48:29,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:29,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:48:29,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:48:29,057 INFO L87 Difference]: Start difference. First operand 45862 states and 84100 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 01:48:34,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:34,635 INFO L93 Difference]: Finished difference Result 138015 states and 279085 transitions. [2024-11-22 01:48:34,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:48:34,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 104 [2024-11-22 01:48:34,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:36,182 INFO L225 Difference]: With dead ends: 138015 [2024-11-22 01:48:36,183 INFO L226 Difference]: Without dead ends: 92171 [2024-11-22 01:48:36,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:48:36,538 INFO L432 NwaCegarLoop]: 919 mSDtfsCounter, 839 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 4284 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:36,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 4284 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 01:48:36,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92171 states. [2024-11-22 01:48:41,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92171 to 91814. [2024-11-22 01:48:41,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91814 states, 71192 states have (on average 1.5917940218002022) internal successors, (113323), 74230 states have internal predecessors, (113323), 15880 states have call successors, (15880), 4406 states have call predecessors, (15880), 4741 states have return successors, (52120), 15913 states have call predecessors, (52120), 15814 states have call successors, (52120) [2024-11-22 01:48:43,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91814 states to 91814 states and 181323 transitions. [2024-11-22 01:48:43,615 INFO L78 Accepts]: Start accepts. Automaton has 91814 states and 181323 transitions. Word has length 104 [2024-11-22 01:48:43,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:43,618 INFO L471 AbstractCegarLoop]: Abstraction has 91814 states and 181323 transitions. [2024-11-22 01:48:43,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 01:48:43,619 INFO L276 IsEmpty]: Start isEmpty. Operand 91814 states and 181323 transitions. [2024-11-22 01:48:43,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-22 01:48:43,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:43,620 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:48:43,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 01:48:43,621 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:43,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:43,621 INFO L85 PathProgramCache]: Analyzing trace with hash -877317571, now seen corresponding path program 1 times [2024-11-22 01:48:43,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:43,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414414169] [2024-11-22 01:48:43,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:43,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:43,722 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-22 01:48:43,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:43,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414414169] [2024-11-22 01:48:43,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414414169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:43,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:43,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:48:43,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978201088] [2024-11-22 01:48:43,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:43,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:48:43,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:43,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:48:43,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:43,728 INFO L87 Difference]: Start difference. First operand 91814 states and 181323 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-22 01:48:50,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:50,527 INFO L93 Difference]: Finished difference Result 184506 states and 381969 transitions. [2024-11-22 01:48:50,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:48:50,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2024-11-22 01:48:50,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:51,450 INFO L225 Difference]: With dead ends: 184506 [2024-11-22 01:48:51,450 INFO L226 Difference]: Without dead ends: 92710 [2024-11-22 01:48:52,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:48:52,424 INFO L432 NwaCegarLoop]: 840 mSDtfsCounter, 10 mSDsluCounter, 1658 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2498 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:52,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2498 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:48:52,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92710 states. [2024-11-22 01:48:56,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92710 to 92390. [2024-11-22 01:48:56,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92390 states, 71720 states have (on average 1.5881065253764641) internal successors, (113899), 74758 states have internal predecessors, (113899), 15880 states have call successors, (15880), 4502 states have call predecessors, (15880), 4789 states have return successors, (52056), 15865 states have call predecessors, (52056), 15814 states have call successors, (52056) [2024-11-22 01:48:58,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92390 states to 92390 states and 181835 transitions. [2024-11-22 01:48:58,549 INFO L78 Accepts]: Start accepts. Automaton has 92390 states and 181835 transitions. Word has length 105 [2024-11-22 01:48:58,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:58,550 INFO L471 AbstractCegarLoop]: Abstraction has 92390 states and 181835 transitions. [2024-11-22 01:48:58,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-22 01:48:58,550 INFO L276 IsEmpty]: Start isEmpty. Operand 92390 states and 181835 transitions. [2024-11-22 01:48:58,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 01:48:58,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:58,552 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:48:58,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 01:48:58,552 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:58,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:58,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1210951802, now seen corresponding path program 1 times [2024-11-22 01:48:58,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:58,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846458747] [2024-11-22 01:48:58,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:58,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:58,803 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-22 01:48:58,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:58,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846458747] [2024-11-22 01:48:58,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846458747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:58,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:58,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:48:58,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524369723] [2024-11-22 01:48:58,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:58,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:48:58,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:58,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:48:58,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:48:58,805 INFO L87 Difference]: Start difference. First operand 92390 states and 181835 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12)