/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 09:09:53,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 09:09:53,707 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 09:09:53,710 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 09:09:53,711 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 09:09:53,725 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 09:09:53,725 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 09:09:53,725 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 09:09:53,726 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 09:09:53,726 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 09:09:53,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 09:09:53,727 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 09:09:53,727 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 09:09:53,727 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 09:09:53,727 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 09:09:53,728 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 09:09:53,728 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 09:09:53,728 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 09:09:53,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 09:09:53,729 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 09:09:53,729 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 09:09:53,729 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 09:09:53,729 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 09:09:53,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 09:09:53,730 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 09:09:53,730 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 09:09:53,730 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 09:09:53,730 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 09:09:53,731 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 09:09:53,731 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 09:09:53,731 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 09:09:53,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 09:09:53,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 09:09:53,732 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 09:09:53,732 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 09:09:53,732 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 09:09:53,732 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 09:09:53,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 09:09:53,732 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 09:09:53,733 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 09:09:53,733 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 09:09:53,733 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 09:09:53,733 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 09:09:53,733 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 09:09:53,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 09:09:53,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 09:09:53,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 09:09:53,949 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 09:09:53,949 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 09:09:53,950 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_productSimulator.cil.c [2023-12-21 09:09:55,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 09:09:55,307 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 09:09:55,307 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_productSimulator.cil.c [2023-12-21 09:09:55,337 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cad15cc42/3b6ce0613ef14480a2d72125eccecd2c/FLAGf8e2386eb [2023-12-21 09:09:55,352 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cad15cc42/3b6ce0613ef14480a2d72125eccecd2c [2023-12-21 09:09:55,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 09:09:55,356 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 09:09:55,358 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 09:09:55,358 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 09:09:55,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 09:09:55,362 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:09:55" (1/1) ... [2023-12-21 09:09:55,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d5bbc0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:09:55, skipping insertion in model container [2023-12-21 09:09:55,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:09:55" (1/1) ... [2023-12-21 09:09:55,434 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 09:09:55,568 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_productSimulator.cil.c[4370,4383] [2023-12-21 09:09:55,823 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 09:09:55,831 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 09:09:55,845 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2023-12-21 09:09:55,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [176] [2023-12-21 09:09:55,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [185] [2023-12-21 09:09:55,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [853] [2023-12-21 09:09:55,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [954] [2023-12-21 09:09:55,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1137] [2023-12-21 09:09:55,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1151] [2023-12-21 09:09:55,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1505] [2023-12-21 09:09:55,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1871] [2023-12-21 09:09:55,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1939] [2023-12-21 09:09:55,852 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_productSimulator.cil.c[4370,4383] [2023-12-21 09:09:55,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 09:09:56,009 INFO L206 MainTranslator]: Completed translation [2023-12-21 09:09:56,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:09:56 WrapperNode [2023-12-21 09:09:56,020 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 09:09:56,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 09:09:56,021 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 09:09:56,021 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 09:09:56,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:09:56" (1/1) ... [2023-12-21 09:09:56,044 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:09:56" (1/1) ... [2023-12-21 09:09:56,078 INFO L138 Inliner]: procedures = 110, calls = 382, calls flagged for inlining = 33, calls inlined = 29, statements flattened = 1029 [2023-12-21 09:09:56,079 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 09:09:56,079 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 09:09:56,079 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 09:09:56,079 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 09:09:56,087 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:09:56" (1/1) ... [2023-12-21 09:09:56,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:09:56" (1/1) ... [2023-12-21 09:09:56,092 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:09:56" (1/1) ... [2023-12-21 09:09:56,131 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]. [2023-12-21 09:09:56,131 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:09:56" (1/1) ... [2023-12-21 09:09:56,131 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:09:56" (1/1) ... [2023-12-21 09:09:56,152 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:09:56" (1/1) ... [2023-12-21 09:09:56,160 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:09:56" (1/1) ... [2023-12-21 09:09:56,202 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:09:56" (1/1) ... [2023-12-21 09:09:56,206 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:09:56" (1/1) ... [2023-12-21 09:09:56,215 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 09:09:56,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 09:09:56,215 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 09:09:56,215 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 09:09:56,216 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:09:56" (1/1) ... [2023-12-21 09:09:56,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 09:09:56,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:09:56,249 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) [2023-12-21 09:09:56,274 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 [2023-12-21 09:09:56,279 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-21 09:09:56,279 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-21 09:09:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-21 09:09:56,280 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-21 09:09:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-21 09:09:56,280 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-21 09:09:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__twothirdsfull [2023-12-21 09:09:56,280 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__twothirdsfull [2023-12-21 09:09:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2023-12-21 09:09:56,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2023-12-21 09:09:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-21 09:09:56,280 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-21 09:09:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__before__empty [2023-12-21 09:09:56,280 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__before__empty [2023-12-21 09:09:56,281 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-21 09:09:56,281 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-21 09:09:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-21 09:09:56,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-21 09:09:56,283 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-21 09:09:56,283 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-21 09:09:56,283 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__before__weight [2023-12-21 09:09:56,284 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__before__weight [2023-12-21 09:09:56,284 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-21 09:09:56,284 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-21 09:09:56,284 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-21 09:09:56,284 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-21 09:09:56,284 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-21 09:09:56,284 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-21 09:09:56,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 09:09:56,284 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-21 09:09:56,284 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-21 09:09:56,284 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-21 09:09:56,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-21 09:09:56,285 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-21 09:09:56,285 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-21 09:09:56,285 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__before__overloaded [2023-12-21 09:09:56,285 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__before__overloaded [2023-12-21 09:09:56,285 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-21 09:09:56,285 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-21 09:09:56,285 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-21 09:09:56,285 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-21 09:09:56,286 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-21 09:09:56,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-21 09:09:56,286 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-21 09:09:56,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-21 09:09:56,286 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__before__weight [2023-12-21 09:09:56,286 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__before__weight [2023-12-21 09:09:56,286 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__executivefloor [2023-12-21 09:09:56,286 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__executivefloor [2023-12-21 09:09:56,286 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-21 09:09:56,286 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-21 09:09:56,286 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__executivefloor [2023-12-21 09:09:56,286 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__executivefloor [2023-12-21 09:09:56,286 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-21 09:09:56,286 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-21 09:09:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-21 09:09:56,287 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-21 09:09:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-21 09:09:56,287 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-21 09:09:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-21 09:09:56,287 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-21 09:09:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 09:09:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 09:09:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 09:09:56,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 09:09:56,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 09:09:56,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-21 09:09:56,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-21 09:09:56,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-21 09:09:56,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-21 09:09:56,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-21 09:09:56,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-21 09:09:56,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-21 09:09:56,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-21 09:09:56,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-21 09:09:56,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-21 09:09:56,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-21 09:09:56,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-21 09:09:56,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-21 09:09:56,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-21 09:09:56,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-21 09:09:56,290 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-12-21 09:09:56,290 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-12-21 09:09:56,290 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-21 09:09:56,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-21 09:09:56,290 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__twothirdsfull [2023-12-21 09:09:56,290 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__twothirdsfull [2023-12-21 09:09:56,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 09:09:56,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 09:09:56,291 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-21 09:09:56,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-21 09:09:56,475 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 09:09:56,477 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 09:09:57,280 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 09:09:57,349 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 09:09:57,349 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 09:09:57,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:09:57 BoogieIcfgContainer [2023-12-21 09:09:57,350 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 09:09:57,352 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 09:09:57,352 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 09:09:57,355 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 09:09:57,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 09:09:55" (1/3) ... [2023-12-21 09:09:57,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14177355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:09:57, skipping insertion in model container [2023-12-21 09:09:57,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:09:56" (2/3) ... [2023-12-21 09:09:57,356 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14177355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:09:57, skipping insertion in model container [2023-12-21 09:09:57,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:09:57" (3/3) ... [2023-12-21 09:09:57,358 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_productSimulator.cil.c [2023-12-21 09:09:57,369 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 09:09:57,370 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 09:09:57,426 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 09:09:57,432 INFO L357 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, mHoare=true, 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;@edfa187, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 09:09:57,432 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 09:09:57,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 652 states, 491 states have (on average 1.6782077393075356) internal successors, (824), 518 states have internal predecessors, (824), 125 states have call successors, (125), 34 states have call predecessors, (125), 34 states have return successors, (125), 117 states have call predecessors, (125), 125 states have call successors, (125) [2023-12-21 09:09:57,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-21 09:09:57,466 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:09:57,467 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:09:57,468 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:09:57,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:09:57,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1326472176, now seen corresponding path program 1 times [2023-12-21 09:09:57,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:09:57,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148088814] [2023-12-21 09:09:57,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:09:57,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:09:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:09:57,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:09:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:09:57,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:09:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:09:57,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:09:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:09:57,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:09:57,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:09:57,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:09:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:09:57,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:09:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:09:58,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:09:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:09:58,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 09:09:58,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:09:58,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 09:09:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:09:58,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:09:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:09:58,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:09:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:09:58,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:09:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:09:58,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:09:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:09:58,504 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 09:09:58,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:09:58,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148088814] [2023-12-21 09:09:58,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148088814] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:09:58,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:09:58,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:09:58,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701306234] [2023-12-21 09:09:58,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:09:58,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:09:58,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:09:58,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:09:58,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:09:58,546 INFO L87 Difference]: Start difference. First operand has 652 states, 491 states have (on average 1.6782077393075356) internal successors, (824), 518 states have internal predecessors, (824), 125 states have call successors, (125), 34 states have call predecessors, (125), 34 states have return successors, (125), 117 states have call predecessors, (125), 125 states have call successors, (125) Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:10:05,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:10:05,053 INFO L93 Difference]: Finished difference Result 1604 states and 2771 transitions. [2023-12-21 09:10:05,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 09:10:05,055 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 77 [2023-12-21 09:10:05,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:10:05,076 INFO L225 Difference]: With dead ends: 1604 [2023-12-21 09:10:05,077 INFO L226 Difference]: Without dead ends: 979 [2023-12-21 09:10:05,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:10:05,089 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 1177 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 3819 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1288 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 4116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 3819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-21 09:10:05,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1288 Valid, 1120 Invalid, 4116 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [297 Valid, 3819 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-21 09:10:05,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2023-12-21 09:10:05,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 648. [2023-12-21 09:10:05,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 489 states have (on average 1.6687116564417177) internal successors, (816), 514 states have internal predecessors, (816), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 09:10:05,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1061 transitions. [2023-12-21 09:10:05,338 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1061 transitions. Word has length 77 [2023-12-21 09:10:05,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:10:05,338 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 1061 transitions. [2023-12-21 09:10:05,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:10:05,338 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1061 transitions. [2023-12-21 09:10:05,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-21 09:10:05,343 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:10:05,343 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:10:05,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 09:10:05,343 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:10:05,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:10:05,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1793299361, now seen corresponding path program 1 times [2023-12-21 09:10:05,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:10:05,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57053394] [2023-12-21 09:10:05,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:10:05,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:10:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:05,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:05,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:10:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:05,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:10:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:05,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:10:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:05,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:10:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:05,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:10:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:05,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:05,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:10:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:05,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 09:10:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:05,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:05,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:05,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:10:05,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:05,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:05,948 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 09:10:05,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:10:05,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57053394] [2023-12-21 09:10:05,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57053394] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:10:05,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:10:05,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:10:05,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151445676] [2023-12-21 09:10:05,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:10:05,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:10:05,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:10:05,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:10:05,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:10:05,954 INFO L87 Difference]: Start difference. First operand 648 states and 1061 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:10:12,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:10:12,083 INFO L93 Difference]: Finished difference Result 1597 states and 2740 transitions. [2023-12-21 09:10:12,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 09:10:12,085 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 79 [2023-12-21 09:10:12,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:10:12,118 INFO L225 Difference]: With dead ends: 1597 [2023-12-21 09:10:12,118 INFO L226 Difference]: Without dead ends: 979 [2023-12-21 09:10:12,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:10:12,122 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 1173 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 3793 mSolverCounterSat, 300 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 4093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 300 IncrementalHoareTripleChecker+Valid, 3793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:10:12,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1285 Valid, 1088 Invalid, 4093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [300 Valid, 3793 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-21 09:10:12,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2023-12-21 09:10:12,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 648. [2023-12-21 09:10:12,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 489 states have (on average 1.6666666666666667) internal successors, (815), 514 states have internal predecessors, (815), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 09:10:12,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1060 transitions. [2023-12-21 09:10:12,225 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1060 transitions. Word has length 79 [2023-12-21 09:10:12,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:10:12,225 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 1060 transitions. [2023-12-21 09:10:12,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:10:12,225 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1060 transitions. [2023-12-21 09:10:12,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 09:10:12,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:10:12,227 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:10:12,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 09:10:12,227 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:10:12,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:10:12,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1214739210, now seen corresponding path program 1 times [2023-12-21 09:10:12,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:10:12,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041002716] [2023-12-21 09:10:12,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:10:12,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:10:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:12,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:12,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:10:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:12,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:10:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:12,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:10:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:12,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:10:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:12,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:10:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:12,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:12,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:10:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:12,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 09:10:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:12,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:12,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:12,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:10:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:12,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:12,813 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 09:10:12,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:10:12,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041002716] [2023-12-21 09:10:12,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041002716] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:10:12,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:10:12,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:10:12,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561587017] [2023-12-21 09:10:12,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:10:12,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:10:12,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:10:12,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:10:12,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:10:12,816 INFO L87 Difference]: Start difference. First operand 648 states and 1060 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:10:18,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:10:18,602 INFO L93 Difference]: Finished difference Result 1597 states and 2739 transitions. [2023-12-21 09:10:18,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 09:10:18,602 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 80 [2023-12-21 09:10:18,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:10:18,620 INFO L225 Difference]: With dead ends: 1597 [2023-12-21 09:10:18,620 INFO L226 Difference]: Without dead ends: 979 [2023-12-21 09:10:18,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:10:18,623 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 1172 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 3795 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 4102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 3795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-21 09:10:18,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 1085 Invalid, 4102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 3795 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-21 09:10:18,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2023-12-21 09:10:18,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 648. [2023-12-21 09:10:18,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 489 states have (on average 1.6646216768916156) internal successors, (814), 514 states have internal predecessors, (814), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 09:10:18,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1059 transitions. [2023-12-21 09:10:18,694 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1059 transitions. Word has length 80 [2023-12-21 09:10:18,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:10:18,695 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 1059 transitions. [2023-12-21 09:10:18,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:10:18,695 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1059 transitions. [2023-12-21 09:10:18,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-21 09:10:18,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:10:18,696 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:10:18,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 09:10:18,696 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:10:18,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:10:18,697 INFO L85 PathProgramCache]: Analyzing trace with hash 428206277, now seen corresponding path program 1 times [2023-12-21 09:10:18,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:10:18,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110311015] [2023-12-21 09:10:18,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:10:18,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:10:18,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:18,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:18,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:10:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:18,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:10:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:18,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:10:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:18,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:10:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:18,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:10:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:18,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:18,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-21 09:10:18,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:19,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 09:10:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:19,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:19,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:19,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:19,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:10:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:19,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:19,179 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 09:10:19,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:10:19,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110311015] [2023-12-21 09:10:19,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110311015] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:10:19,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:10:19,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:10:19,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166777178] [2023-12-21 09:10:19,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:10:19,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:10:19,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:10:19,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:10:19,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:10:19,181 INFO L87 Difference]: Start difference. First operand 648 states and 1059 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:10:25,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:10:25,230 INFO L93 Difference]: Finished difference Result 1597 states and 2738 transitions. [2023-12-21 09:10:25,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 09:10:25,230 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 81 [2023-12-21 09:10:25,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:10:25,236 INFO L225 Difference]: With dead ends: 1597 [2023-12-21 09:10:25,236 INFO L226 Difference]: Without dead ends: 979 [2023-12-21 09:10:25,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:10:25,239 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 1697 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 3692 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 4209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 3692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:10:25,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 1085 Invalid, 4209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 3692 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-21 09:10:25,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2023-12-21 09:10:25,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 648. [2023-12-21 09:10:25,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 489 states have (on average 1.6625766871165644) internal successors, (813), 514 states have internal predecessors, (813), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 09:10:25,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1058 transitions. [2023-12-21 09:10:25,352 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1058 transitions. Word has length 81 [2023-12-21 09:10:25,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:10:25,352 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 1058 transitions. [2023-12-21 09:10:25,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:10:25,353 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1058 transitions. [2023-12-21 09:10:25,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-21 09:10:25,355 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:10:25,355 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:10:25,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 09:10:25,356 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:10:25,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:10:25,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1784451694, now seen corresponding path program 1 times [2023-12-21 09:10:25,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:10:25,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679405196] [2023-12-21 09:10:25,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:10:25,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:10:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:25,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:25,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:10:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:25,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:10:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:25,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:10:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:25,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:10:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:25,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:10:25,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:25,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:25,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:25,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-21 09:10:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:25,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 09:10:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:25,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:25,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:25,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:10:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:25,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:25,907 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 09:10:25,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:10:25,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679405196] [2023-12-21 09:10:25,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679405196] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:10:25,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:10:25,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:10:25,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145401204] [2023-12-21 09:10:25,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:10:25,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:10:25,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:10:25,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:10:25,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:10:25,909 INFO L87 Difference]: Start difference. First operand 648 states and 1058 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:10:31,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:10:31,148 INFO L93 Difference]: Finished difference Result 1597 states and 2737 transitions. [2023-12-21 09:10:31,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 09:10:31,148 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 82 [2023-12-21 09:10:31,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:10:31,162 INFO L225 Difference]: With dead ends: 1597 [2023-12-21 09:10:31,162 INFO L226 Difference]: Without dead ends: 979 [2023-12-21 09:10:31,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:10:31,183 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 2221 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 3594 mSolverCounterSat, 723 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2331 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 4317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 723 IncrementalHoareTripleChecker+Valid, 3594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:10:31,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2331 Valid, 1077 Invalid, 4317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [723 Valid, 3594 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-21 09:10:31,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2023-12-21 09:10:31,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 648. [2023-12-21 09:10:31,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 489 states have (on average 1.6605316973415134) internal successors, (812), 514 states have internal predecessors, (812), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 09:10:31,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1057 transitions. [2023-12-21 09:10:31,292 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1057 transitions. Word has length 82 [2023-12-21 09:10:31,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:10:31,292 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 1057 transitions. [2023-12-21 09:10:31,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:10:31,293 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1057 transitions. [2023-12-21 09:10:31,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-21 09:10:31,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:10:31,297 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:10:31,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 09:10:31,297 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:10:31,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:10:31,297 INFO L85 PathProgramCache]: Analyzing trace with hash 847349225, now seen corresponding path program 1 times [2023-12-21 09:10:31,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:10:31,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915158323] [2023-12-21 09:10:31,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:10:31,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:10:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:31,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:31,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:10:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:31,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:10:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:31,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:10:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:31,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:10:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:31,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:10:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:31,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:31,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:10:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:31,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 09:10:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:31,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:31,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:31,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:10:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:31,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:31,776 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 09:10:31,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:10:31,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915158323] [2023-12-21 09:10:31,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915158323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:10:31,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:10:31,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:10:31,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413246744] [2023-12-21 09:10:31,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:10:31,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:10:31,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:10:31,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:10:31,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:10:31,778 INFO L87 Difference]: Start difference. First operand 648 states and 1057 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:10:36,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:10:36,615 INFO L93 Difference]: Finished difference Result 1557 states and 2661 transitions. [2023-12-21 09:10:36,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:10:36,621 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 83 [2023-12-21 09:10:36,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:10:36,635 INFO L225 Difference]: With dead ends: 1557 [2023-12-21 09:10:36,635 INFO L226 Difference]: Without dead ends: 979 [2023-12-21 09:10:36,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-21 09:10:36,652 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 1801 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 3539 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1910 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 4059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 3539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:10:36,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1910 Valid, 1077 Invalid, 4059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 3539 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-21 09:10:36,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2023-12-21 09:10:36,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 648. [2023-12-21 09:10:36,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 489 states have (on average 1.6503067484662577) internal successors, (807), 514 states have internal predecessors, (807), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 09:10:36,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1052 transitions. [2023-12-21 09:10:36,729 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1052 transitions. Word has length 83 [2023-12-21 09:10:36,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:10:36,731 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 1052 transitions. [2023-12-21 09:10:36,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:10:36,731 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1052 transitions. [2023-12-21 09:10:36,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-21 09:10:36,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:10:36,733 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:10:36,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 09:10:36,733 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:10:36,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:10:36,733 INFO L85 PathProgramCache]: Analyzing trace with hash -397588081, now seen corresponding path program 1 times [2023-12-21 09:10:36,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:10:36,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714879544] [2023-12-21 09:10:36,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:10:36,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:10:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:36,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:36,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:10:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:36,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:10:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:36,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:10:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:36,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:10:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:36,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:10:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:36,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:36,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:10:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:37,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 09:10:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:37,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:37,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:37,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:10:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:37,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:37,307 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 09:10:37,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:10:37,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714879544] [2023-12-21 09:10:37,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714879544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:10:37,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:10:37,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:10:37,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172164138] [2023-12-21 09:10:37,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:10:37,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:10:37,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:10:37,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:10:37,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:10:37,310 INFO L87 Difference]: Start difference. First operand 648 states and 1052 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:10:42,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:10:42,865 INFO L93 Difference]: Finished difference Result 1557 states and 2656 transitions. [2023-12-21 09:10:42,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:10:42,866 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2023-12-21 09:10:42,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:10:42,870 INFO L225 Difference]: With dead ends: 1557 [2023-12-21 09:10:42,870 INFO L226 Difference]: Without dead ends: 979 [2023-12-21 09:10:42,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-21 09:10:42,872 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 1787 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 3628 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1894 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 4145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 3628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-21 09:10:42,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1894 Valid, 1075 Invalid, 4145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 3628 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-21 09:10:42,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2023-12-21 09:10:42,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 648. [2023-12-21 09:10:42,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 489 states have (on average 1.640081799591002) internal successors, (802), 514 states have internal predecessors, (802), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 09:10:42,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1047 transitions. [2023-12-21 09:10:42,947 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1047 transitions. Word has length 84 [2023-12-21 09:10:42,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:10:42,948 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 1047 transitions. [2023-12-21 09:10:42,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:10:42,948 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1047 transitions. [2023-12-21 09:10:42,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 09:10:42,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:10:42,949 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:10:42,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 09:10:42,949 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:10:42,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:10:42,949 INFO L85 PathProgramCache]: Analyzing trace with hash 284427332, now seen corresponding path program 1 times [2023-12-21 09:10:42,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:10:42,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259872637] [2023-12-21 09:10:42,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:10:42,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:10:42,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:43,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:43,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:10:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:43,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:10:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:43,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:10:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:43,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:10:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:43,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:10:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:43,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:43,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:43,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:10:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:43,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 09:10:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:43,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:43,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:43,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:10:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:43,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:43,473 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 09:10:43,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:10:43,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259872637] [2023-12-21 09:10:43,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259872637] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:10:43,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:10:43,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:10:43,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958421678] [2023-12-21 09:10:43,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:10:43,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:10:43,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:10:43,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:10:43,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:10:43,475 INFO L87 Difference]: Start difference. First operand 648 states and 1047 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:10:48,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:10:48,772 INFO L93 Difference]: Finished difference Result 1557 states and 2651 transitions. [2023-12-21 09:10:48,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:10:48,773 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 85 [2023-12-21 09:10:48,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:10:48,777 INFO L225 Difference]: With dead ends: 1557 [2023-12-21 09:10:48,777 INFO L226 Difference]: Without dead ends: 979 [2023-12-21 09:10:48,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-21 09:10:48,779 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 2312 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 3415 mSolverCounterSat, 743 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2424 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 4158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 743 IncrementalHoareTripleChecker+Valid, 3415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-21 09:10:48,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2424 Valid, 1065 Invalid, 4158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [743 Valid, 3415 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-21 09:10:48,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2023-12-21 09:10:48,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 648. [2023-12-21 09:10:48,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 489 states have (on average 1.6298568507157465) internal successors, (797), 514 states have internal predecessors, (797), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 09:10:48,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1042 transitions. [2023-12-21 09:10:48,853 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1042 transitions. Word has length 85 [2023-12-21 09:10:48,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:10:48,854 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 1042 transitions. [2023-12-21 09:10:48,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:10:48,854 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1042 transitions. [2023-12-21 09:10:48,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-21 09:10:48,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:10:48,855 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:10:48,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 09:10:48,855 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:10:48,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:10:48,855 INFO L85 PathProgramCache]: Analyzing trace with hash 572434890, now seen corresponding path program 1 times [2023-12-21 09:10:48,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:10:48,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796114833] [2023-12-21 09:10:48,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:10:48,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:10:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:48,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:48,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:48,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:10:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:48,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:10:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:48,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:10:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:48,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:10:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:49,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:10:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:49,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:49,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:10:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:49,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 09:10:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:49,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:49,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:49,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:10:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:49,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:49,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:49,395 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 09:10:49,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:10:49,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796114833] [2023-12-21 09:10:49,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796114833] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:10:49,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:10:49,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:10:49,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307547948] [2023-12-21 09:10:49,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:10:49,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:10:49,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:10:49,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:10:49,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:10:49,397 INFO L87 Difference]: Start difference. First operand 648 states and 1042 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:10:54,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:10:54,460 INFO L93 Difference]: Finished difference Result 1557 states and 2646 transitions. [2023-12-21 09:10:54,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:10:54,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 86 [2023-12-21 09:10:54,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:10:54,465 INFO L225 Difference]: With dead ends: 1557 [2023-12-21 09:10:54,465 INFO L226 Difference]: Without dead ends: 979 [2023-12-21 09:10:54,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-21 09:10:54,469 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 2317 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 3410 mSolverCounterSat, 735 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2429 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 4145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 735 IncrementalHoareTripleChecker+Valid, 3410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-21 09:10:54,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2429 Valid, 1066 Invalid, 4145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [735 Valid, 3410 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-21 09:10:54,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2023-12-21 09:10:54,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 648. [2023-12-21 09:10:54,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 489 states have (on average 1.6196319018404908) internal successors, (792), 514 states have internal predecessors, (792), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 09:10:54,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1037 transitions. [2023-12-21 09:10:54,547 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1037 transitions. Word has length 86 [2023-12-21 09:10:54,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:10:54,547 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 1037 transitions. [2023-12-21 09:10:54,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:10:54,547 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1037 transitions. [2023-12-21 09:10:54,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-21 09:10:54,548 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:10:54,548 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:10:54,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 09:10:54,548 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:10:54,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:10:54,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1988372233, now seen corresponding path program 1 times [2023-12-21 09:10:54,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:10:54,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112028994] [2023-12-21 09:10:54,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:10:54,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:10:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:54,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:54,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:10:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:54,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:10:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:54,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:10:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:54,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:10:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:54,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:10:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:54,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:54,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:10:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:54,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 09:10:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:55,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:55,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:55,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:10:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:55,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:10:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:10:55,060 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 09:10:55,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:10:55,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112028994] [2023-12-21 09:10:55,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112028994] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:10:55,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:10:55,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:10:55,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644030041] [2023-12-21 09:10:55,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:10:55,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:10:55,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:10:55,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:10:55,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:10:55,061 INFO L87 Difference]: Start difference. First operand 648 states and 1037 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:11:01,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:11:01,023 INFO L93 Difference]: Finished difference Result 1568 states and 2657 transitions. [2023-12-21 09:11:01,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 09:11:01,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 86 [2023-12-21 09:11:01,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:11:01,030 INFO L225 Difference]: With dead ends: 1568 [2023-12-21 09:11:01,030 INFO L226 Difference]: Without dead ends: 996 [2023-12-21 09:11:01,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-12-21 09:11:01,032 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 2281 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 3440 mSolverCounterSat, 703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 4143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 703 IncrementalHoareTripleChecker+Valid, 3440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-21 09:11:01,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2397 Valid, 1112 Invalid, 4143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [703 Valid, 3440 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-21 09:11:01,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2023-12-21 09:11:01,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 650. [2023-12-21 09:11:01,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 491 states have (on average 1.6171079429735233) internal successors, (794), 516 states have internal predecessors, (794), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 09:11:01,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 1039 transitions. [2023-12-21 09:11:01,111 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 1039 transitions. Word has length 86 [2023-12-21 09:11:01,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:11:01,111 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 1039 transitions. [2023-12-21 09:11:01,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:11:01,111 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 1039 transitions. [2023-12-21 09:11:01,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-21 09:11:01,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:11:01,112 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:11:01,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 09:11:01,113 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:11:01,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:11:01,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1531100831, now seen corresponding path program 1 times [2023-12-21 09:11:01,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:11:01,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988552064] [2023-12-21 09:11:01,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:11:01,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:11:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:01,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:01,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:11:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:01,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:11:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:01,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:11:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:01,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:11:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:01,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:11:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:01,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:01,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:11:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:01,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 09:11:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:01,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:01,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:01,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:11:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:01,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:01,624 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 09:11:01,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:11:01,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988552064] [2023-12-21 09:11:01,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988552064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:11:01,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:11:01,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:11:01,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546551320] [2023-12-21 09:11:01,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:11:01,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:11:01,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:11:01,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:11:01,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:11:01,626 INFO L87 Difference]: Start difference. First operand 650 states and 1039 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:11:06,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:11:06,571 INFO L93 Difference]: Finished difference Result 1563 states and 2647 transitions. [2023-12-21 09:11:06,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:11:06,571 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 87 [2023-12-21 09:11:06,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:11:06,576 INFO L225 Difference]: With dead ends: 1563 [2023-12-21 09:11:06,576 INFO L226 Difference]: Without dead ends: 983 [2023-12-21 09:11:06,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-21 09:11:06,578 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 1243 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 3592 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 3913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 3592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:11:06,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 1078 Invalid, 3913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 3592 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-21 09:11:06,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2023-12-21 09:11:06,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 650. [2023-12-21 09:11:06,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 491 states have (on average 1.6069246435845215) internal successors, (789), 516 states have internal predecessors, (789), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 09:11:06,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 1034 transitions. [2023-12-21 09:11:06,657 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 1034 transitions. Word has length 87 [2023-12-21 09:11:06,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:11:06,658 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 1034 transitions. [2023-12-21 09:11:06,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:11:06,658 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 1034 transitions. [2023-12-21 09:11:06,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-21 09:11:06,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:11:06,659 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:11:06,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 09:11:06,660 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:11:06,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:11:06,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1116932606, now seen corresponding path program 1 times [2023-12-21 09:11:06,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:11:06,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826783464] [2023-12-21 09:11:06,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:11:06,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:11:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:06,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:06,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:11:06,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:06,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:11:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:06,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:11:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:06,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:11:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:06,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:11:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:06,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:06,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:11:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:07,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 09:11:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:07,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:07,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:07,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:11:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:07,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:07,164 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 09:11:07,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:11:07,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826783464] [2023-12-21 09:11:07,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826783464] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:11:07,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:11:07,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:11:07,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238623499] [2023-12-21 09:11:07,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:11:07,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:11:07,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:11:07,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:11:07,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:11:07,166 INFO L87 Difference]: Start difference. First operand 650 states and 1034 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:11:12,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:11:12,837 INFO L93 Difference]: Finished difference Result 1572 states and 2654 transitions. [2023-12-21 09:11:12,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 09:11:12,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 87 [2023-12-21 09:11:12,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:11:12,858 INFO L225 Difference]: With dead ends: 1572 [2023-12-21 09:11:12,858 INFO L226 Difference]: Without dead ends: 1000 [2023-12-21 09:11:12,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-12-21 09:11:12,860 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 2296 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 3416 mSolverCounterSat, 727 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 4143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 727 IncrementalHoareTripleChecker+Valid, 3416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-21 09:11:12,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2405 Valid, 1072 Invalid, 4143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [727 Valid, 3416 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-21 09:11:12,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2023-12-21 09:11:13,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 653. [2023-12-21 09:11:13,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 494 states have (on average 1.6032388663967612) internal successors, (792), 519 states have internal predecessors, (792), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 09:11:13,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 1037 transitions. [2023-12-21 09:11:13,009 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 1037 transitions. Word has length 87 [2023-12-21 09:11:13,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:11:13,009 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 1037 transitions. [2023-12-21 09:11:13,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:11:13,009 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 1037 transitions. [2023-12-21 09:11:13,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-21 09:11:13,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:11:13,010 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:11:13,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 09:11:13,011 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:11:13,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:11:13,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1805340165, now seen corresponding path program 1 times [2023-12-21 09:11:13,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:11:13,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102482951] [2023-12-21 09:11:13,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:11:13,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:11:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:13,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:13,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:13,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:11:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:13,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:11:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:13,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:11:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:13,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:11:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:13,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:11:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:13,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:13,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:11:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:13,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 09:11:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:13,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:13,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:13,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:11:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:13,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:13,576 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 09:11:13,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:11:13,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102482951] [2023-12-21 09:11:13,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102482951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:11:13,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:11:13,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 09:11:13,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298755374] [2023-12-21 09:11:13,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:11:13,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 09:11:13,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:11:13,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 09:11:13,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:11:13,578 INFO L87 Difference]: Start difference. First operand 653 states and 1037 transitions. Second operand has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 09:11:19,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:11:19,902 INFO L93 Difference]: Finished difference Result 1579 states and 2663 transitions. [2023-12-21 09:11:19,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 09:11:19,912 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 88 [2023-12-21 09:11:19,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:11:19,918 INFO L225 Difference]: With dead ends: 1579 [2023-12-21 09:11:19,918 INFO L226 Difference]: Without dead ends: 1009 [2023-12-21 09:11:19,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2023-12-21 09:11:19,921 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 1766 mSDsluCounter, 1588 mSDsCounter, 0 mSdLazyCounter, 6538 mSolverCounterSat, 510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1879 SdHoareTripleChecker+Valid, 1875 SdHoareTripleChecker+Invalid, 7048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 6538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-21 09:11:19,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1879 Valid, 1875 Invalid, 7048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 6538 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-21 09:11:19,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2023-12-21 09:11:20,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 663. [2023-12-21 09:11:20,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 501 states have (on average 1.6007984031936129) internal successors, (802), 528 states have internal predecessors, (802), 126 states have call successors, (126), 34 states have call predecessors, (126), 35 states have return successors, (123), 117 states have call predecessors, (123), 121 states have call successors, (123) [2023-12-21 09:11:20,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 1051 transitions. [2023-12-21 09:11:20,008 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 1051 transitions. Word has length 88 [2023-12-21 09:11:20,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:11:20,008 INFO L495 AbstractCegarLoop]: Abstraction has 663 states and 1051 transitions. [2023-12-21 09:11:20,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 09:11:20,008 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 1051 transitions. [2023-12-21 09:11:20,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-21 09:11:20,009 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:11:20,010 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:11:20,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 09:11:20,010 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:11:20,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:11:20,010 INFO L85 PathProgramCache]: Analyzing trace with hash 120830596, now seen corresponding path program 1 times [2023-12-21 09:11:20,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:11:20,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626314922] [2023-12-21 09:11:20,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:11:20,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:11:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:20,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:20,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:11:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:20,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:11:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:20,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:11:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:20,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:11:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:20,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:11:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:20,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:20,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:11:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:20,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 09:11:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:20,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:20,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:20,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:11:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:20,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:20,546 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 09:11:20,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:11:20,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626314922] [2023-12-21 09:11:20,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626314922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:11:20,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:11:20,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:11:20,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870382754] [2023-12-21 09:11:20,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:11:20,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:11:20,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:11:20,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:11:20,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:11:20,547 INFO L87 Difference]: Start difference. First operand 663 states and 1051 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:11:26,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:11:26,444 INFO L93 Difference]: Finished difference Result 1596 states and 2687 transitions. [2023-12-21 09:11:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 09:11:26,445 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 88 [2023-12-21 09:11:26,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:11:26,449 INFO L225 Difference]: With dead ends: 1596 [2023-12-21 09:11:26,449 INFO L226 Difference]: Without dead ends: 1022 [2023-12-21 09:11:26,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-12-21 09:11:26,451 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 1749 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 3433 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1863 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 3953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 3433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-21 09:11:26,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1863 Valid, 1102 Invalid, 3953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 3433 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-21 09:11:26,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2023-12-21 09:11:26,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 667. [2023-12-21 09:11:26,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 505 states have (on average 1.5940594059405941) internal successors, (805), 532 states have internal predecessors, (805), 126 states have call successors, (126), 34 states have call predecessors, (126), 35 states have return successors, (123), 117 states have call predecessors, (123), 121 states have call successors, (123) [2023-12-21 09:11:26,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 1054 transitions. [2023-12-21 09:11:26,535 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 1054 transitions. Word has length 88 [2023-12-21 09:11:26,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:11:26,535 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 1054 transitions. [2023-12-21 09:11:26,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:11:26,535 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 1054 transitions. [2023-12-21 09:11:26,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-21 09:11:26,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:11:26,536 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:11:26,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 09:11:26,537 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:11:26,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:11:26,537 INFO L85 PathProgramCache]: Analyzing trace with hash -2051617628, now seen corresponding path program 1 times [2023-12-21 09:11:26,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:11:26,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984067944] [2023-12-21 09:11:26,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:11:26,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:11:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:26,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:26,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:11:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:26,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:11:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:26,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:11:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:26,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:11:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:26,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:11:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:26,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:26,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:11:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:26,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 09:11:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:26,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:26,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:26,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:11:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:26,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:26,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:26,989 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 09:11:26,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:11:26,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984067944] [2023-12-21 09:11:26,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984067944] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:11:26,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:11:26,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:11:26,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48069711] [2023-12-21 09:11:26,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:11:26,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:11:26,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:11:26,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:11:26,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:11:26,991 INFO L87 Difference]: Start difference. First operand 667 states and 1054 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:11:33,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:11:33,140 INFO L93 Difference]: Finished difference Result 1642 states and 2735 transitions. [2023-12-21 09:11:33,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 09:11:33,140 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 88 [2023-12-21 09:11:33,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:11:33,145 INFO L225 Difference]: With dead ends: 1642 [2023-12-21 09:11:33,145 INFO L226 Difference]: Without dead ends: 987 [2023-12-21 09:11:33,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:11:33,147 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 1138 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 3663 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 3974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 3663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-12-21 09:11:33,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 1095 Invalid, 3974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 3663 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-12-21 09:11:33,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2023-12-21 09:11:33,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 649. [2023-12-21 09:11:33,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 490 states have (on average 1.6) internal successors, (784), 515 states have internal predecessors, (784), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 09:11:33,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 1029 transitions. [2023-12-21 09:11:33,231 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 1029 transitions. Word has length 88 [2023-12-21 09:11:33,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:11:33,231 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 1029 transitions. [2023-12-21 09:11:33,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:11:33,231 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 1029 transitions. [2023-12-21 09:11:33,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-21 09:11:33,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:11:33,232 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:11:33,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 09:11:33,233 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:11:33,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:11:33,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1445250403, now seen corresponding path program 1 times [2023-12-21 09:11:33,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:11:33,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575524886] [2023-12-21 09:11:33,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:11:33,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:11:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:33,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:33,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:11:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:33,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:11:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:33,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:11:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:33,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:11:33,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:33,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:11:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:33,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:33,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:11:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:33,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 09:11:33,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:33,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:33,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:33,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:11:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:33,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:33,794 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 09:11:33,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:11:33,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575524886] [2023-12-21 09:11:33,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575524886] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:11:33,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:11:33,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:11:33,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838588279] [2023-12-21 09:11:33,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:11:33,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:11:33,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:11:33,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:11:33,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:11:33,796 INFO L87 Difference]: Start difference. First operand 649 states and 1029 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:11:39,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:11:39,950 INFO L93 Difference]: Finished difference Result 1576 states and 2649 transitions. [2023-12-21 09:11:39,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 09:11:39,951 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 89 [2023-12-21 09:11:39,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:11:39,955 INFO L225 Difference]: With dead ends: 1576 [2023-12-21 09:11:39,955 INFO L226 Difference]: Without dead ends: 1004 [2023-12-21 09:11:39,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-12-21 09:11:39,957 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 1186 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 3618 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 3925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 3618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-21 09:11:39,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 1103 Invalid, 3925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 3618 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-21 09:11:39,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2023-12-21 09:11:40,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 654. [2023-12-21 09:11:40,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 495 states have (on average 1.593939393939394) internal successors, (789), 520 states have internal predecessors, (789), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-21 09:11:40,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1034 transitions. [2023-12-21 09:11:40,039 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1034 transitions. Word has length 89 [2023-12-21 09:11:40,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:11:40,040 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 1034 transitions. [2023-12-21 09:11:40,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 09:11:40,040 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1034 transitions. [2023-12-21 09:11:40,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 09:11:40,041 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:11:40,041 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:11:40,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 09:11:40,041 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:11:40,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:11:40,042 INFO L85 PathProgramCache]: Analyzing trace with hash 542069231, now seen corresponding path program 1 times [2023-12-21 09:11:40,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:11:40,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659453706] [2023-12-21 09:11:40,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:11:40,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:11:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:40,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:40,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:11:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:40,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:11:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:40,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:11:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:40,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:11:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:40,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:11:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:40,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:40,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:11:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:40,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:11:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:40,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:40,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:40,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:11:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:40,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:40,689 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 09:11:40,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:11:40,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659453706] [2023-12-21 09:11:40,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659453706] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:11:40,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:11:40,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 09:11:40,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933336221] [2023-12-21 09:11:40,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:11:40,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 09:11:40,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:11:40,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 09:11:40,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:11:40,691 INFO L87 Difference]: Start difference. First operand 654 states and 1034 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 6 states have internal predecessors, (59), 5 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-21 09:11:51,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:11:51,873 INFO L93 Difference]: Finished difference Result 2766 states and 4983 transitions. [2023-12-21 09:11:51,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 09:11:51,874 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 6 states have internal predecessors, (59), 5 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) Word has length 90 [2023-12-21 09:11:51,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:11:51,891 INFO L225 Difference]: With dead ends: 2766 [2023-12-21 09:11:51,891 INFO L226 Difference]: Without dead ends: 2201 [2023-12-21 09:11:51,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2023-12-21 09:11:51,894 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 6500 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 5300 mSolverCounterSat, 2402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6641 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 7702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2402 IncrementalHoareTripleChecker+Valid, 5300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:11:51,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6641 Valid, 1601 Invalid, 7702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2402 Valid, 5300 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2023-12-21 09:11:51,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2201 states. [2023-12-21 09:11:52,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2201 to 1332. [2023-12-21 09:11:52,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 980 states have (on average 1.6153061224489795) internal successors, (1583), 1035 states have internal predecessors, (1583), 283 states have call successors, (283), 64 states have call predecessors, (283), 68 states have return successors, (326), 272 states have call predecessors, (326), 278 states have call successors, (326) [2023-12-21 09:11:52,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 2192 transitions. [2023-12-21 09:11:52,182 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 2192 transitions. Word has length 90 [2023-12-21 09:11:52,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:11:52,182 INFO L495 AbstractCegarLoop]: Abstraction has 1332 states and 2192 transitions. [2023-12-21 09:11:52,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 6 states have internal predecessors, (59), 5 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-21 09:11:52,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 2192 transitions. [2023-12-21 09:11:52,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 09:11:52,186 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:11:52,186 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:11:52,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 09:11:52,186 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:11:52,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:11:52,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1899204951, now seen corresponding path program 1 times [2023-12-21 09:11:52,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:11:52,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917377264] [2023-12-21 09:11:52,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:11:52,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:11:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:52,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:52,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:11:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:52,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:11:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:52,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:11:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:52,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:11:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:52,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:11:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:52,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:52,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:11:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:52,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:11:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:52,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:52,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:53,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 09:11:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:53,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:11:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:53,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:53,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:11:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:53,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 09:11:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:53,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:11:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:53,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:53,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:11:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:53,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 09:11:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:53,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 09:11:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:53,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:53,297 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-21 09:11:53,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:11:53,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917377264] [2023-12-21 09:11:53,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917377264] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:11:53,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712880704] [2023-12-21 09:11:53,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:11:53,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:11:53,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:11:53,316 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) [2023-12-21 09:11:53,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 09:11:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:53,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 09:11:53,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:11:53,800 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 09:11:53,800 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:11:53,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712880704] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:11:53,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:11:53,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 20 [2023-12-21 09:11:53,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102560129] [2023-12-21 09:11:53,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:11:53,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 09:11:53,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:11:53,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 09:11:53,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2023-12-21 09:11:53,802 INFO L87 Difference]: Start difference. First operand 1332 states and 2192 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-21 09:11:54,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:11:54,433 INFO L93 Difference]: Finished difference Result 2591 states and 4362 transitions. [2023-12-21 09:11:54,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 09:11:54,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 145 [2023-12-21 09:11:54,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:11:54,439 INFO L225 Difference]: With dead ends: 2591 [2023-12-21 09:11:54,439 INFO L226 Difference]: Without dead ends: 1348 [2023-12-21 09:11:54,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2023-12-21 09:11:54,445 INFO L413 NwaCegarLoop]: 975 mSDtfsCounter, 958 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 2466 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 09:11:54,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 2466 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 09:11:54,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2023-12-21 09:11:54,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 1348. [2023-12-21 09:11:54,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 994 states have (on average 1.6167002012072436) internal successors, (1607), 1049 states have internal predecessors, (1607), 283 states have call successors, (283), 66 states have call predecessors, (283), 70 states have return successors, (328), 272 states have call predecessors, (328), 278 states have call successors, (328) [2023-12-21 09:11:54,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 2218 transitions. [2023-12-21 09:11:54,671 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 2218 transitions. Word has length 145 [2023-12-21 09:11:54,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:11:54,671 INFO L495 AbstractCegarLoop]: Abstraction has 1348 states and 2218 transitions. [2023-12-21 09:11:54,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-21 09:11:54,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 2218 transitions. [2023-12-21 09:11:54,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-21 09:11:54,676 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:11:54,676 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:11:54,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 09:11:54,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-21 09:11:54,884 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:11:54,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:11:54,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1104003040, now seen corresponding path program 1 times [2023-12-21 09:11:54,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:11:54,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055987626] [2023-12-21 09:11:54,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:11:54,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:11:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:55,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:55,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:11:55,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:55,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:11:55,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:55,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:11:55,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:55,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:11:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:55,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:11:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:55,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:55,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:11:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:55,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:11:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:55,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:55,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:55,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 09:11:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:56,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:11:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:56,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:56,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:11:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:56,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-21 09:11:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:56,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:11:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:56,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:56,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:11:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:56,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 09:11:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:56,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 09:11:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:56,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:11:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:56,276 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-21 09:11:56,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:11:56,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055987626] [2023-12-21 09:11:56,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055987626] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:11:56,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850703275] [2023-12-21 09:11:56,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:11:56,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:11:56,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:11:56,278 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) [2023-12-21 09:11:56,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 09:11:56,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:11:56,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-21 09:11:56,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:11:56,771 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-21 09:11:56,771 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:11:56,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850703275] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:11:56,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:11:56,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [27] total 33 [2023-12-21 09:11:56,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201467487] [2023-12-21 09:11:56,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:11:56,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 09:11:56,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:11:56,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 09:11:56,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=958, Unknown=0, NotChecked=0, Total=1056 [2023-12-21 09:11:56,773 INFO L87 Difference]: Start difference. First operand 1348 states and 2218 transitions. Second operand has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2023-12-21 09:11:59,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:11:59,697 INFO L93 Difference]: Finished difference Result 3377 states and 5572 transitions. [2023-12-21 09:11:59,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 09:11:59,700 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 146 [2023-12-21 09:11:59,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:11:59,712 INFO L225 Difference]: With dead ends: 3377 [2023-12-21 09:11:59,712 INFO L226 Difference]: Without dead ends: 2116 [2023-12-21 09:11:59,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=184, Invalid=1886, Unknown=0, NotChecked=0, Total=2070 [2023-12-21 09:11:59,717 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 1715 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 5825 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1814 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 6164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 5825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:11:59,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1814 Valid, 1258 Invalid, 6164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 5825 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-21 09:11:59,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2023-12-21 09:12:00,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 2053. [2023-12-21 09:12:00,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2053 states, 1503 states have (on average 1.5994677312042582) internal successors, (2404), 1570 states have internal predecessors, (2404), 429 states have call successors, (429), 105 states have call predecessors, (429), 120 states have return successors, (516), 415 states have call predecessors, (516), 424 states have call successors, (516) [2023-12-21 09:12:00,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2053 states to 2053 states and 3349 transitions. [2023-12-21 09:12:00,100 INFO L78 Accepts]: Start accepts. Automaton has 2053 states and 3349 transitions. Word has length 146 [2023-12-21 09:12:00,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:12:00,100 INFO L495 AbstractCegarLoop]: Abstraction has 2053 states and 3349 transitions. [2023-12-21 09:12:00,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2023-12-21 09:12:00,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2053 states and 3349 transitions. [2023-12-21 09:12:00,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 09:12:00,106 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:12:00,106 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:12:00,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-21 09:12:00,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:12:00,313 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:12:00,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:12:00,313 INFO L85 PathProgramCache]: Analyzing trace with hash 491293607, now seen corresponding path program 1 times [2023-12-21 09:12:00,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:12:00,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974006886] [2023-12-21 09:12:00,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:12:00,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:12:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:00,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:00,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:12:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:00,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:12:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:00,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:12:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:00,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:12:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:00,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:12:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:00,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:00,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:12:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:00,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:12:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:00,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:00,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:01,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 09:12:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:01,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:12:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:01,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:01,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:12:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:01,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-21 09:12:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:01,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:12:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:01,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:01,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:12:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:01,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 09:12:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:01,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 09:12:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:01,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:01,240 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-21 09:12:01,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:12:01,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974006886] [2023-12-21 09:12:01,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974006886] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:12:01,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:12:01,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 09:12:01,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232958334] [2023-12-21 09:12:01,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:12:01,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 09:12:01,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:12:01,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 09:12:01,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-12-21 09:12:01,242 INFO L87 Difference]: Start difference. First operand 2053 states and 3349 transitions. Second operand has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (22), 7 states have call predecessors, (22), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-21 09:12:10,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:12:10,268 INFO L93 Difference]: Finished difference Result 5325 states and 9817 transitions. [2023-12-21 09:12:10,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 09:12:10,269 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (22), 7 states have call predecessors, (22), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 147 [2023-12-21 09:12:10,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:12:10,285 INFO L225 Difference]: With dead ends: 5325 [2023-12-21 09:12:10,285 INFO L226 Difference]: Without dead ends: 3353 [2023-12-21 09:12:10,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2023-12-21 09:12:10,295 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 3934 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 5152 mSolverCounterSat, 1531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3947 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 6683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1531 IncrementalHoareTripleChecker+Valid, 5152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:12:10,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3947 Valid, 1763 Invalid, 6683 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1531 Valid, 5152 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-12-21 09:12:10,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3353 states. [2023-12-21 09:12:10,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3353 to 2073. [2023-12-21 09:12:10,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 1519 states have (on average 1.5905200789993417) internal successors, (2416), 1586 states have internal predecessors, (2416), 429 states have call successors, (429), 109 states have call predecessors, (429), 124 states have return successors, (520), 415 states have call predecessors, (520), 424 states have call successors, (520) [2023-12-21 09:12:10,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 3365 transitions. [2023-12-21 09:12:10,802 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 3365 transitions. Word has length 147 [2023-12-21 09:12:10,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:12:10,803 INFO L495 AbstractCegarLoop]: Abstraction has 2073 states and 3365 transitions. [2023-12-21 09:12:10,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (22), 7 states have call predecessors, (22), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-21 09:12:10,803 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 3365 transitions. [2023-12-21 09:12:10,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-21 09:12:10,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:12:10,807 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:12:10,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 09:12:10,807 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:12:10,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:12:10,807 INFO L85 PathProgramCache]: Analyzing trace with hash -43169690, now seen corresponding path program 1 times [2023-12-21 09:12:10,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:12:10,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865657575] [2023-12-21 09:12:10,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:12:10,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:12:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:10,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:10,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:12:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:10,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:12:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:10,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:12:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:10,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:12:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:10,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:12:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:10,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:10,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:12:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:11,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:12:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:11,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:11,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:11,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:11,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:12:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:11,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:12:11,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:11,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:11,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-21 09:12:11,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:11,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:12:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:11,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:11,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:12:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:11,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 09:12:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:11,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 09:12:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:11,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:11,707 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-21 09:12:11,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:12:11,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865657575] [2023-12-21 09:12:11,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865657575] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:12:11,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:12:11,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 09:12:11,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245261935] [2023-12-21 09:12:11,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:12:11,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 09:12:11,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:12:11,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 09:12:11,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 09:12:11,709 INFO L87 Difference]: Start difference. First operand 2073 states and 3365 transitions. Second operand has 14 states, 14 states have (on average 6.5) internal successors, (91), 7 states have internal predecessors, (91), 3 states have call successors, (22), 7 states have call predecessors, (22), 4 states have return successors, (21), 5 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-21 09:12:32,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:12:32,816 INFO L93 Difference]: Finished difference Result 9987 states and 19171 transitions. [2023-12-21 09:12:32,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-21 09:12:32,816 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.5) internal successors, (91), 7 states have internal predecessors, (91), 3 states have call successors, (22), 7 states have call predecessors, (22), 4 states have return successors, (21), 5 states have call predecessors, (21), 3 states have call successors, (21) Word has length 141 [2023-12-21 09:12:32,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:12:32,851 INFO L225 Difference]: With dead ends: 9987 [2023-12-21 09:12:32,851 INFO L226 Difference]: Without dead ends: 8003 [2023-12-21 09:12:32,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=474, Invalid=1688, Unknown=0, NotChecked=0, Total=2162 [2023-12-21 09:12:32,860 INFO L413 NwaCegarLoop]: 1005 mSDtfsCounter, 4419 mSDsluCounter, 7368 mSDsCounter, 0 mSdLazyCounter, 18288 mSolverCounterSat, 1618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4521 SdHoareTripleChecker+Valid, 8373 SdHoareTripleChecker+Invalid, 19906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1618 IncrementalHoareTripleChecker+Valid, 18288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-12-21 09:12:32,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4521 Valid, 8373 Invalid, 19906 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1618 Valid, 18288 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2023-12-21 09:12:32,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8003 states. [2023-12-21 09:12:33,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8003 to 4033. [2023-12-21 09:12:33,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4033 states, 2979 states have (on average 1.5861027190332326) internal successors, (4725), 3102 states have internal predecessors, (4725), 799 states have call successors, (799), 210 states have call predecessors, (799), 254 states have return successors, (1021), 796 states have call predecessors, (1021), 794 states have call successors, (1021) [2023-12-21 09:12:33,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4033 states to 4033 states and 6545 transitions. [2023-12-21 09:12:33,854 INFO L78 Accepts]: Start accepts. Automaton has 4033 states and 6545 transitions. Word has length 141 [2023-12-21 09:12:33,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:12:33,854 INFO L495 AbstractCegarLoop]: Abstraction has 4033 states and 6545 transitions. [2023-12-21 09:12:33,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.5) internal successors, (91), 7 states have internal predecessors, (91), 3 states have call successors, (22), 7 states have call predecessors, (22), 4 states have return successors, (21), 5 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-21 09:12:33,854 INFO L276 IsEmpty]: Start isEmpty. Operand 4033 states and 6545 transitions. [2023-12-21 09:12:33,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 09:12:33,860 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:12:33,861 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:12:33,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 09:12:33,861 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:12:33,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:12:33,861 INFO L85 PathProgramCache]: Analyzing trace with hash -540481614, now seen corresponding path program 1 times [2023-12-21 09:12:33,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:12:33,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121772819] [2023-12-21 09:12:33,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:12:33,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:12:33,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:33,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:33,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:12:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:33,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:12:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:33,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:12:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:33,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:12:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:34,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:12:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:34,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:34,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:12:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:34,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:12:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:34,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:34,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:34,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:12:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:34,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 09:12:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:34,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 09:12:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:34,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-21 09:12:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:34,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:12:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:34,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:34,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:12:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:34,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 09:12:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:34,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 09:12:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:34,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:12:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:12:34,728 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-21 09:12:34,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:12:34,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121772819] [2023-12-21 09:12:34,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121772819] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:12:34,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:12:34,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 09:12:34,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647867535] [2023-12-21 09:12:34,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:12:34,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 09:12:34,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:12:34,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 09:12:34,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:12:34,730 INFO L87 Difference]: Start difference. First operand 4033 states and 6545 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 5 states have internal predecessors, (93), 5 states have call successors, (22), 7 states have call predecessors, (22), 3 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2023-12-21 09:13:02,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:13:02,263 INFO L93 Difference]: Finished difference Result 28593 states and 57816 transitions. [2023-12-21 09:13:02,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-21 09:13:02,264 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 5 states have internal predecessors, (93), 5 states have call successors, (22), 7 states have call predecessors, (22), 3 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 142 [2023-12-21 09:13:02,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:13:02,412 INFO L225 Difference]: With dead ends: 28593 [2023-12-21 09:13:02,412 INFO L226 Difference]: Without dead ends: 24723 [2023-12-21 09:13:02,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 872 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=502, Invalid=2150, Unknown=0, NotChecked=0, Total=2652 [2023-12-21 09:13:02,443 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 17880 mSDsluCounter, 2055 mSDsCounter, 0 mSdLazyCounter, 7852 mSolverCounterSat, 7518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17910 SdHoareTripleChecker+Valid, 2830 SdHoareTripleChecker+Invalid, 15370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7518 IncrementalHoareTripleChecker+Valid, 7852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2023-12-21 09:13:02,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17910 Valid, 2830 Invalid, 15370 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7518 Valid, 7852 Invalid, 0 Unknown, 0 Unchecked, 16.4s Time] [2023-12-21 09:13:02,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24723 states. [2023-12-21 09:13:06,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24723 to 14760. [2023-12-21 09:13:06,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14760 states, 10954 states have (on average 1.6058060982289575) internal successors, (17590), 11413 states have internal predecessors, (17590), 2864 states have call successors, (2864), 814 states have call predecessors, (2864), 941 states have return successors, (3992), 2836 states have call predecessors, (3992), 2859 states have call successors, (3992) [2023-12-21 09:13:06,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14760 states to 14760 states and 24446 transitions. [2023-12-21 09:13:06,425 INFO L78 Accepts]: Start accepts. Automaton has 14760 states and 24446 transitions. Word has length 142 [2023-12-21 09:13:06,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:13:06,425 INFO L495 AbstractCegarLoop]: Abstraction has 14760 states and 24446 transitions. [2023-12-21 09:13:06,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 5 states have internal predecessors, (93), 5 states have call successors, (22), 7 states have call predecessors, (22), 3 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2023-12-21 09:13:06,425 INFO L276 IsEmpty]: Start isEmpty. Operand 14760 states and 24446 transitions. [2023-12-21 09:13:06,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-21 09:13:06,451 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:13:06,451 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:13:06,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 09:13:06,451 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:13:06,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:13:06,451 INFO L85 PathProgramCache]: Analyzing trace with hash -414758277, now seen corresponding path program 1 times [2023-12-21 09:13:06,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:13:06,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025428081] [2023-12-21 09:13:06,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:13:06,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:13:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:06,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:06,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:13:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:06,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:13:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:06,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:13:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:06,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:13:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:06,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:13:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:06,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:06,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:13:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:06,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:13:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:07,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:07,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:07,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:13:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:07,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:07,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:13:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:07,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:13:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:07,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:07,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:07,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 09:13:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:07,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:13:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:07,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:07,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:07,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:13:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:07,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 09:13:07,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:07,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 09:13:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:07,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:07,693 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-21 09:13:07,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:13:07,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025428081] [2023-12-21 09:13:07,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025428081] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:13:07,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:13:07,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 09:13:07,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491048923] [2023-12-21 09:13:07,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:13:07,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 09:13:07,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:13:07,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 09:13:07,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-12-21 09:13:07,697 INFO L87 Difference]: Start difference. First operand 14760 states and 24446 transitions. Second operand has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 8 states have internal predecessors, (95), 3 states have call successors, (23), 7 states have call predecessors, (23), 4 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-21 09:13:28,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:13:28,054 INFO L93 Difference]: Finished difference Result 29716 states and 59366 transitions. [2023-12-21 09:13:28,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-21 09:13:28,055 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 8 states have internal predecessors, (95), 3 states have call successors, (23), 7 states have call predecessors, (23), 4 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) Word has length 156 [2023-12-21 09:13:28,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:13:28,258 INFO L225 Difference]: With dead ends: 29716 [2023-12-21 09:13:28,258 INFO L226 Difference]: Without dead ends: 26112 [2023-12-21 09:13:28,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=352, Invalid=1130, Unknown=0, NotChecked=0, Total=1482 [2023-12-21 09:13:28,284 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 3320 mSDsluCounter, 3904 mSDsCounter, 0 mSdLazyCounter, 9977 mSolverCounterSat, 1406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3333 SdHoareTripleChecker+Valid, 4417 SdHoareTripleChecker+Invalid, 11383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1406 IncrementalHoareTripleChecker+Valid, 9977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2023-12-21 09:13:28,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3333 Valid, 4417 Invalid, 11383 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1406 Valid, 9977 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2023-12-21 09:13:28,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26112 states. [2023-12-21 09:13:32,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26112 to 14816. [2023-12-21 09:13:32,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14816 states, 10994 states have (on average 1.6036019647080226) internal successors, (17630), 11457 states have internal predecessors, (17630), 2864 states have call successors, (2864), 814 states have call predecessors, (2864), 957 states have return successors, (4032), 2848 states have call predecessors, (4032), 2859 states have call successors, (4032) [2023-12-21 09:13:32,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14816 states to 14816 states and 24526 transitions. [2023-12-21 09:13:32,311 INFO L78 Accepts]: Start accepts. Automaton has 14816 states and 24526 transitions. Word has length 156 [2023-12-21 09:13:32,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:13:32,312 INFO L495 AbstractCegarLoop]: Abstraction has 14816 states and 24526 transitions. [2023-12-21 09:13:32,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 8 states have internal predecessors, (95), 3 states have call successors, (23), 7 states have call predecessors, (23), 4 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-21 09:13:32,312 INFO L276 IsEmpty]: Start isEmpty. Operand 14816 states and 24526 transitions. [2023-12-21 09:13:32,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-21 09:13:32,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:13:32,337 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:13:32,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 09:13:32,337 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:13:32,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:13:32,338 INFO L85 PathProgramCache]: Analyzing trace with hash 221663855, now seen corresponding path program 1 times [2023-12-21 09:13:32,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:13:32,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573332415] [2023-12-21 09:13:32,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:13:32,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:13:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:32,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:32,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:13:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:32,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:13:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:32,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:13:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:32,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:13:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:32,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:13:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:32,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:32,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:13:32,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:32,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:13:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:32,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:33,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:33,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:13:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:33,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:33,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:13:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:33,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 09:13:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:33,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:13:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:33,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:33,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 09:13:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:33,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:13:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:33,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:33,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:13:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:33,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 09:13:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:33,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 09:13:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:33,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:33,493 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:13:33,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:13:33,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573332415] [2023-12-21 09:13:33,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573332415] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:13:33,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201218675] [2023-12-21 09:13:33,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:13:33,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:13:33,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:13:33,494 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) [2023-12-21 09:13:33,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 09:13:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:33,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 1861 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 09:13:33,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:13:33,893 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-21 09:13:33,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:13:33,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201218675] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:13:33,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:13:33,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [18] total 19 [2023-12-21 09:13:33,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330463995] [2023-12-21 09:13:33,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:13:33,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 09:13:33,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:13:33,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 09:13:33,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-12-21 09:13:33,895 INFO L87 Difference]: Start difference. First operand 14816 states and 24526 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-21 09:13:38,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:13:38,069 INFO L93 Difference]: Finished difference Result 23450 states and 38715 transitions. [2023-12-21 09:13:38,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 09:13:38,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 161 [2023-12-21 09:13:38,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:13:38,166 INFO L225 Difference]: With dead ends: 23450 [2023-12-21 09:13:38,166 INFO L226 Difference]: Without dead ends: 16299 [2023-12-21 09:13:38,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-12-21 09:13:38,206 INFO L413 NwaCegarLoop]: 1616 mSDtfsCounter, 941 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 2575 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:13:38,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 2575 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 09:13:38,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16299 states. [2023-12-21 09:13:42,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16299 to 16282. [2023-12-21 09:13:42,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16282 states, 12041 states have (on average 1.5951332945768624) internal successors, (19207), 12567 states have internal predecessors, (19207), 3181 states have call successors, (3181), 913 states have call predecessors, (3181), 1059 states have return successors, (4245), 3143 states have call predecessors, (4245), 3176 states have call successors, (4245) [2023-12-21 09:13:42,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16282 states to 16282 states and 26633 transitions. [2023-12-21 09:13:42,400 INFO L78 Accepts]: Start accepts. Automaton has 16282 states and 26633 transitions. Word has length 161 [2023-12-21 09:13:42,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:13:42,401 INFO L495 AbstractCegarLoop]: Abstraction has 16282 states and 26633 transitions. [2023-12-21 09:13:42,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-21 09:13:42,401 INFO L276 IsEmpty]: Start isEmpty. Operand 16282 states and 26633 transitions. [2023-12-21 09:13:42,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 09:13:42,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:13:42,425 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:13:42,434 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-21 09:13:42,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:13:42,635 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:13:42,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:13:42,635 INFO L85 PathProgramCache]: Analyzing trace with hash 2053679794, now seen corresponding path program 1 times [2023-12-21 09:13:42,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:13:42,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773115018] [2023-12-21 09:13:42,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:13:42,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:13:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:42,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:42,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:13:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:42,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:13:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:42,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:13:42,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:42,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:13:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:42,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:13:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:42,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:42,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:13:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:43,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:13:43,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:43,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:43,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:43,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:13:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:43,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:43,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:13:43,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:43,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 09:13:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:43,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:13:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:43,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:43,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:13:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:43,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 09:13:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:43,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 09:13:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:43,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:13:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:13:43,466 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-21 09:13:43,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:13:43,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773115018] [2023-12-21 09:13:43,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773115018] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:13:43,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:13:43,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 09:13:43,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750533654] [2023-12-21 09:13:43,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:13:43,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 09:13:43,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:13:43,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 09:13:43,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-12-21 09:13:43,468 INFO L87 Difference]: Start difference. First operand 16282 states and 26633 transitions. Second operand has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-21 09:14:00,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:14:00,139 INFO L93 Difference]: Finished difference Result 43488 states and 82549 transitions. [2023-12-21 09:14:00,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 09:14:00,140 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 143 [2023-12-21 09:14:00,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:14:00,296 INFO L225 Difference]: With dead ends: 43488 [2023-12-21 09:14:00,296 INFO L226 Difference]: Without dead ends: 27561 [2023-12-21 09:14:00,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2023-12-21 09:14:00,349 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 3015 mSDsluCounter, 1466 mSDsCounter, 0 mSdLazyCounter, 5086 mSolverCounterSat, 1218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3029 SdHoareTripleChecker+Valid, 1845 SdHoareTripleChecker+Invalid, 6304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1218 IncrementalHoareTripleChecker+Valid, 5086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-12-21 09:14:00,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3029 Valid, 1845 Invalid, 6304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1218 Valid, 5086 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-12-21 09:14:00,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27561 states. [2023-12-21 09:14:04,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27561 to 16502. [2023-12-21 09:14:04,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16502 states, 12223 states have (on average 1.5833265155853717) internal successors, (19353), 12749 states have internal predecessors, (19353), 3181 states have call successors, (3181), 949 states have call predecessors, (3181), 1097 states have return successors, (4281), 3145 states have call predecessors, (4281), 3176 states have call successors, (4281) [2023-12-21 09:14:04,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16502 states to 16502 states and 26815 transitions. [2023-12-21 09:14:04,898 INFO L78 Accepts]: Start accepts. Automaton has 16502 states and 26815 transitions. Word has length 143 [2023-12-21 09:14:04,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:14:04,899 INFO L495 AbstractCegarLoop]: Abstraction has 16502 states and 26815 transitions. [2023-12-21 09:14:04,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-21 09:14:04,899 INFO L276 IsEmpty]: Start isEmpty. Operand 16502 states and 26815 transitions. [2023-12-21 09:14:04,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 09:14:04,922 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:14:04,922 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:14:04,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-21 09:14:04,922 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:14:04,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:14:04,923 INFO L85 PathProgramCache]: Analyzing trace with hash 181839802, now seen corresponding path program 1 times [2023-12-21 09:14:04,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:14:04,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828782140] [2023-12-21 09:14:04,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:14:04,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:14:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:14:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:14:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:14:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:14:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:14:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:14:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:14:05,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:14:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 09:14:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:14:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:14:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 09:14:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 09:14:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 09:14:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:05,861 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-21 09:14:05,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:14:05,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828782140] [2023-12-21 09:14:05,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828782140] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:14:05,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:14:05,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 09:14:05,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924416157] [2023-12-21 09:14:05,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:14:05,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 09:14:05,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:14:05,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 09:14:05,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-12-21 09:14:05,862 INFO L87 Difference]: Start difference. First operand 16502 states and 26815 transitions. Second operand has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-21 09:14:23,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:14:23,892 INFO L93 Difference]: Finished difference Result 43960 states and 82699 transitions. [2023-12-21 09:14:23,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 09:14:23,893 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 145 [2023-12-21 09:14:23,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:14:24,026 INFO L225 Difference]: With dead ends: 43960 [2023-12-21 09:14:24,026 INFO L226 Difference]: Without dead ends: 27813 [2023-12-21 09:14:24,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2023-12-21 09:14:24,082 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 2473 mSDsluCounter, 1448 mSDsCounter, 0 mSdLazyCounter, 5335 mSolverCounterSat, 967 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2486 SdHoareTripleChecker+Valid, 1817 SdHoareTripleChecker+Invalid, 6302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 967 IncrementalHoareTripleChecker+Valid, 5335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:14:24,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2486 Valid, 1817 Invalid, 6302 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [967 Valid, 5335 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-12-21 09:14:24,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27813 states. [2023-12-21 09:14:28,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27813 to 16754. [2023-12-21 09:14:28,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16754 states, 12439 states have (on average 1.5703030790256451) internal successors, (19533), 12965 states have internal predecessors, (19533), 3181 states have call successors, (3181), 985 states have call predecessors, (3181), 1133 states have return successors, (4313), 3145 states have call predecessors, (4313), 3176 states have call successors, (4313) [2023-12-21 09:14:28,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16754 states to 16754 states and 27027 transitions. [2023-12-21 09:14:28,768 INFO L78 Accepts]: Start accepts. Automaton has 16754 states and 27027 transitions. Word has length 145 [2023-12-21 09:14:28,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:14:28,769 INFO L495 AbstractCegarLoop]: Abstraction has 16754 states and 27027 transitions. [2023-12-21 09:14:28,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-21 09:14:28,769 INFO L276 IsEmpty]: Start isEmpty. Operand 16754 states and 27027 transitions. [2023-12-21 09:14:28,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 09:14:28,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:14:28,788 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:14:28,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-21 09:14:28,789 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:14:28,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:14:28,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1408460722, now seen corresponding path program 1 times [2023-12-21 09:14:28,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:14:28,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367162461] [2023-12-21 09:14:28,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:14:28,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:14:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:28,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:28,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:14:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:28,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:14:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:28,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:14:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:28,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:14:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:29,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:14:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:29,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:29,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:14:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:29,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:14:29,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:29,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:29,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:29,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:14:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:29,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:29,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:14:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:29,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:14:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:29,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:14:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:29,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:29,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:14:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:29,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 09:14:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:29,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 09:14:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:30,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:30,023 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 09:14:30,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:14:30,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367162461] [2023-12-21 09:14:30,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367162461] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:14:30,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362429753] [2023-12-21 09:14:30,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:14:30,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:14:30,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:14:30,024 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) [2023-12-21 09:14:30,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 09:14:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:30,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 1816 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 09:14:30,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:14:30,518 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-21 09:14:30,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:14:30,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362429753] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:14:30,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:14:30,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 21 [2023-12-21 09:14:30,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149358086] [2023-12-21 09:14:30,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:14:30,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 09:14:30,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:14:30,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 09:14:30,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2023-12-21 09:14:30,519 INFO L87 Difference]: Start difference. First operand 16754 states and 27027 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 09:14:35,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:14:35,462 INFO L93 Difference]: Finished difference Result 17579 states and 28594 transitions. [2023-12-21 09:14:35,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 09:14:35,463 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 147 [2023-12-21 09:14:35,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:14:35,534 INFO L225 Difference]: With dead ends: 17579 [2023-12-21 09:14:35,534 INFO L226 Difference]: Without dead ends: 17556 [2023-12-21 09:14:35,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2023-12-21 09:14:35,545 INFO L413 NwaCegarLoop]: 996 mSDtfsCounter, 967 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 1751 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:14:35,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 1751 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 09:14:35,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17556 states. [2023-12-21 09:14:40,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17556 to 16808. [2023-12-21 09:14:40,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16808 states, 12493 states have (on average 1.5678379892739935) internal successors, (19587), 13019 states have internal predecessors, (19587), 3181 states have call successors, (3181), 985 states have call predecessors, (3181), 1133 states have return successors, (4313), 3145 states have call predecessors, (4313), 3176 states have call successors, (4313) [2023-12-21 09:14:40,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16808 states to 16808 states and 27081 transitions. [2023-12-21 09:14:40,214 INFO L78 Accepts]: Start accepts. Automaton has 16808 states and 27081 transitions. Word has length 147 [2023-12-21 09:14:40,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:14:40,214 INFO L495 AbstractCegarLoop]: Abstraction has 16808 states and 27081 transitions. [2023-12-21 09:14:40,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-21 09:14:40,215 INFO L276 IsEmpty]: Start isEmpty. Operand 16808 states and 27081 transitions. [2023-12-21 09:14:40,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-21 09:14:40,239 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:14:40,239 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:14:40,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 09:14:40,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-21 09:14:40,454 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:14:40,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:14:40,454 INFO L85 PathProgramCache]: Analyzing trace with hash -584965210, now seen corresponding path program 1 times [2023-12-21 09:14:40,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:14:40,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257718343] [2023-12-21 09:14:40,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:14:40,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:14:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:40,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:40,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:14:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:40,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:14:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:40,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:14:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:40,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:14:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:40,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:14:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:40,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:40,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:14:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:41,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:14:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:41,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:41,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:41,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:14:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:41,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:41,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:14:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:41,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:14:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:41,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:14:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:41,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:41,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:14:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:41,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 09:14:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:41,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 09:14:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:41,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:14:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:41,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:14:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:14:41,569 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-21 09:14:41,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:14:41,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257718343] [2023-12-21 09:14:41,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257718343] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:14:41,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:14:41,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 09:14:41,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866361924] [2023-12-21 09:14:41,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:14:41,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 09:14:41,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:14:41,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 09:14:41,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:14:41,570 INFO L87 Difference]: Start difference. First operand 16808 states and 27081 transitions. Second operand has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (21), 6 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-21 09:15:22,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:15:22,312 INFO L93 Difference]: Finished difference Result 62741 states and 125903 transitions. [2023-12-21 09:15:22,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2023-12-21 09:15:22,313 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (21), 6 states have call predecessors, (21), 3 states have call successors, (21) Word has length 154 [2023-12-21 09:15:22,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:15:22,720 INFO L225 Difference]: With dead ends: 62741 [2023-12-21 09:15:22,721 INFO L226 Difference]: Without dead ends: 62724 [2023-12-21 09:15:22,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2883 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=1319, Invalid=6513, Unknown=0, NotChecked=0, Total=7832 [2023-12-21 09:15:22,766 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 8611 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 6514 mSolverCounterSat, 3731 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8657 SdHoareTripleChecker+Valid, 2373 SdHoareTripleChecker+Invalid, 10245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3731 IncrementalHoareTripleChecker+Valid, 6514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-12-21 09:15:22,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8657 Valid, 2373 Invalid, 10245 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3731 Valid, 6514 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2023-12-21 09:15:22,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62724 states. [2023-12-21 09:15:29,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62724 to 16808. [2023-12-21 09:15:29,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16808 states, 12493 states have (on average 1.5665572720723606) internal successors, (19571), 13019 states have internal predecessors, (19571), 3181 states have call successors, (3181), 985 states have call predecessors, (3181), 1133 states have return successors, (4313), 3145 states have call predecessors, (4313), 3176 states have call successors, (4313) [2023-12-21 09:15:29,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16808 states to 16808 states and 27065 transitions. [2023-12-21 09:15:29,090 INFO L78 Accepts]: Start accepts. Automaton has 16808 states and 27065 transitions. Word has length 154 [2023-12-21 09:15:29,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:15:29,091 INFO L495 AbstractCegarLoop]: Abstraction has 16808 states and 27065 transitions. [2023-12-21 09:15:29,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (21), 6 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-21 09:15:29,091 INFO L276 IsEmpty]: Start isEmpty. Operand 16808 states and 27065 transitions. [2023-12-21 09:15:29,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-21 09:15:29,117 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:15:29,117 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:15:29,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-21 09:15:29,117 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:15:29,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:15:29,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1913050727, now seen corresponding path program 1 times [2023-12-21 09:15:29,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:15:29,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178680958] [2023-12-21 09:15:29,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:15:29,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:15:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:29,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:15:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:29,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:15:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:29,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:15:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:29,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:15:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:29,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:15:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:29,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:15:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:29,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:15:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:29,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:15:29,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:29,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:15:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:29,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:15:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:30,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:15:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:30,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:15:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:30,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:15:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:30,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:15:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:30,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:15:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:30,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:15:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:30,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:15:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:30,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:15:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:30,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 09:15:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:30,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 09:15:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:30,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:15:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:30,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:15:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:15:30,056 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-21 09:15:30,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:15:30,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178680958] [2023-12-21 09:15:30,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178680958] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:15:30,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:15:30,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 09:15:30,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722443116] [2023-12-21 09:15:30,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:15:30,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 09:15:30,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:15:30,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 09:15:30,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-12-21 09:15:30,057 INFO L87 Difference]: Start difference. First operand 16808 states and 27065 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (21), 6 states have call predecessors, (21), 4 states have call successors, (21) [2023-12-21 09:16:21,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:16:21,370 INFO L93 Difference]: Finished difference Result 69847 states and 133745 transitions. [2023-12-21 09:16:21,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-12-21 09:16:21,371 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (21), 6 states have call predecessors, (21), 4 states have call successors, (21) Word has length 154 [2023-12-21 09:16:21,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:16:21,928 INFO L225 Difference]: With dead ends: 69847 [2023-12-21 09:16:21,928 INFO L226 Difference]: Without dead ends: 62126 [2023-12-21 09:16:21,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1198 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=661, Invalid=2879, Unknown=0, NotChecked=0, Total=3540 [2023-12-21 09:16:21,990 INFO L413 NwaCegarLoop]: 740 mSDtfsCounter, 16060 mSDsluCounter, 2290 mSDsCounter, 0 mSdLazyCounter, 8619 mSolverCounterSat, 6820 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16073 SdHoareTripleChecker+Valid, 3030 SdHoareTripleChecker+Invalid, 15439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6820 IncrementalHoareTripleChecker+Valid, 8619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2023-12-21 09:16:21,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16073 Valid, 3030 Invalid, 15439 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6820 Valid, 8619 Invalid, 0 Unknown, 0 Unchecked, 18.2s Time] [2023-12-21 09:16:22,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62126 states. [2023-12-21 09:16:29,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62126 to 16808. [2023-12-21 09:16:29,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16808 states, 12493 states have (on average 1.5638357480188905) internal successors, (19537), 13019 states have internal predecessors, (19537), 3181 states have call successors, (3181), 985 states have call predecessors, (3181), 1133 states have return successors, (4195), 3145 states have call predecessors, (4195), 3176 states have call successors, (4195) [2023-12-21 09:16:29,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16808 states to 16808 states and 26913 transitions. [2023-12-21 09:16:29,220 INFO L78 Accepts]: Start accepts. Automaton has 16808 states and 26913 transitions. Word has length 154 [2023-12-21 09:16:29,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:16:29,220 INFO L495 AbstractCegarLoop]: Abstraction has 16808 states and 26913 transitions. [2023-12-21 09:16:29,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (21), 6 states have call predecessors, (21), 4 states have call successors, (21) [2023-12-21 09:16:29,221 INFO L276 IsEmpty]: Start isEmpty. Operand 16808 states and 26913 transitions. [2023-12-21 09:16:29,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-21 09:16:29,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:16:29,243 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:16:29,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-21 09:16:29,244 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:16:29,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:16:29,244 INFO L85 PathProgramCache]: Analyzing trace with hash -657616238, now seen corresponding path program 1 times [2023-12-21 09:16:29,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:16:29,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003231534] [2023-12-21 09:16:29,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:16:29,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:16:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:29,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:16:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:29,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:16:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:29,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:16:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:29,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:16:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:29,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:16:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:29,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:16:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:29,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:16:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:29,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:16:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:29,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:16:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:29,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:16:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:30,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:16:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:30,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 09:16:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:30,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:16:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:30,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:16:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:30,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:16:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:30,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:16:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:30,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:16:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:30,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:16:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:30,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:16:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:30,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 09:16:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:30,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:16:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:30,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:16:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:30,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 09:16:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:30,470 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 09:16:30,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:16:30,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003231534] [2023-12-21 09:16:30,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003231534] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:16:30,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486214481] [2023-12-21 09:16:30,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:16:30,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:16:30,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:16:30,472 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:16:30,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 09:16:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:30,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 1853 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 09:16:30,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:16:30,940 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-21 09:16:30,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:16:30,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486214481] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:16:30,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:16:30,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18] total 22 [2023-12-21 09:16:30,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672672532] [2023-12-21 09:16:30,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:16:30,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 09:16:30,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:16:30,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 09:16:30,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2023-12-21 09:16:30,942 INFO L87 Difference]: Start difference. First operand 16808 states and 26913 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-21 09:16:37,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:16:37,453 INFO L93 Difference]: Finished difference Result 17730 states and 28194 transitions. [2023-12-21 09:16:37,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 09:16:37,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) Word has length 160 [2023-12-21 09:16:37,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:16:37,529 INFO L225 Difference]: With dead ends: 17730 [2023-12-21 09:16:37,529 INFO L226 Difference]: Without dead ends: 17711 [2023-12-21 09:16:37,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2023-12-21 09:16:37,537 INFO L413 NwaCegarLoop]: 1020 mSDtfsCounter, 1009 mSDsluCounter, 2932 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 3952 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:16:37,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 3952 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 09:16:37,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17711 states. [2023-12-21 09:16:43,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17711 to 17530. [2023-12-21 09:16:43,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17530 states, 13059 states have (on average 1.5531817137606247) internal successors, (20283), 13585 states have internal predecessors, (20283), 3261 states have call successors, (3261), 1065 states have call predecessors, (3261), 1209 states have return successors, (4351), 3221 states have call predecessors, (4351), 3256 states have call successors, (4351) [2023-12-21 09:16:43,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17530 states to 17530 states and 27895 transitions. [2023-12-21 09:16:43,502 INFO L78 Accepts]: Start accepts. Automaton has 17530 states and 27895 transitions. Word has length 160 [2023-12-21 09:16:43,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:16:43,502 INFO L495 AbstractCegarLoop]: Abstraction has 17530 states and 27895 transitions. [2023-12-21 09:16:43,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-21 09:16:43,502 INFO L276 IsEmpty]: Start isEmpty. Operand 17530 states and 27895 transitions. [2023-12-21 09:16:43,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-21 09:16:43,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:16:43,524 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:16:43,531 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-21 09:16:43,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:16:43,731 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:16:43,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:16:43,731 INFO L85 PathProgramCache]: Analyzing trace with hash -328960995, now seen corresponding path program 1 times [2023-12-21 09:16:43,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:16:43,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432326574] [2023-12-21 09:16:43,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:16:43,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:16:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:43,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:16:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:43,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:16:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:43,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:16:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:43,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:16:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:43,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:16:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:44,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:16:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:44,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:16:44,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:44,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:16:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:44,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:16:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:44,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:16:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:44,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:16:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:44,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:16:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:44,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:16:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:44,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:16:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:44,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:16:44,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:44,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:16:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:44,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:16:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:44,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:16:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:44,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 09:16:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:44,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 09:16:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:44,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:16:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:44,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:16:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:44,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 09:16:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:44,860 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-21 09:16:44,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:16:44,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432326574] [2023-12-21 09:16:44,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432326574] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:16:44,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189808654] [2023-12-21 09:16:44,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:16:44,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:16:44,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:16:44,867 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:16:44,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 09:16:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:16:45,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 1871 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-21 09:16:45,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:16:45,399 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-21 09:16:45,399 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:16:45,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189808654] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:16:45,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:16:45,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18] total 22 [2023-12-21 09:16:45,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861320978] [2023-12-21 09:16:45,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:16:45,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 09:16:45,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:16:45,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 09:16:45,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2023-12-21 09:16:45,403 INFO L87 Difference]: Start difference. First operand 17530 states and 27895 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 6 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) [2023-12-21 09:16:54,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:16:54,252 INFO L93 Difference]: Finished difference Result 35383 states and 57055 transitions. [2023-12-21 09:16:54,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 09:16:54,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 6 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) Word has length 163 [2023-12-21 09:16:54,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:16:54,318 INFO L225 Difference]: With dead ends: 35383 [2023-12-21 09:16:54,318 INFO L226 Difference]: Without dead ends: 18330 [2023-12-21 09:16:54,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2023-12-21 09:16:54,362 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 2238 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 2071 mSolverCounterSat, 618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2349 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 2689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 2071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:16:54,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2349 Valid, 781 Invalid, 2689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [618 Valid, 2071 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 09:16:54,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18330 states. [2023-12-21 09:17:01,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18330 to 17570. [2023-12-21 09:17:01,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17570 states, 12453 states have (on average 1.529109451537782) internal successors, (19042), 13250 states have internal predecessors, (19042), 4008 states have call successors, (4008), 959 states have call predecessors, (4008), 1108 states have return successors, (5219), 4017 states have call predecessors, (5219), 4003 states have call successors, (5219) [2023-12-21 09:17:01,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17570 states to 17570 states and 28269 transitions. [2023-12-21 09:17:01,517 INFO L78 Accepts]: Start accepts. Automaton has 17570 states and 28269 transitions. Word has length 163 [2023-12-21 09:17:01,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:17:01,518 INFO L495 AbstractCegarLoop]: Abstraction has 17570 states and 28269 transitions. [2023-12-21 09:17:01,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 6 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) [2023-12-21 09:17:01,518 INFO L276 IsEmpty]: Start isEmpty. Operand 17570 states and 28269 transitions. [2023-12-21 09:17:01,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-21 09:17:01,538 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:17:01,539 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:17:01,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 09:17:01,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:17:01,746 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:17:01,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:17:01,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1074433748, now seen corresponding path program 1 times [2023-12-21 09:17:01,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:17:01,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185737653] [2023-12-21 09:17:01,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:17:01,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:17:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:01,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:17:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:01,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:17:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:01,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 09:17:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:01,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 09:17:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:01,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 09:17:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:01,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:17:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:02,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:17:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:02,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 09:17:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:02,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:17:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:02,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:17:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:02,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:17:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:02,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:17:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:02,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 09:17:02,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:02,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 09:17:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:02,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-21 09:17:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:02,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:17:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:02,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 09:17:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:02,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 09:17:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:02,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 09:17:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:02,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 09:17:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:02,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 09:17:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:02,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 09:17:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:17:02,899 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 09:17:02,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:17:02,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185737653] [2023-12-21 09:17:02,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185737653] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:17:02,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:17:02,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-21 09:17:02,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700218125] [2023-12-21 09:17:02,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:17:02,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-21 09:17:02,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:17:02,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-21 09:17:02,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2023-12-21 09:17:02,900 INFO L87 Difference]: Start difference. First operand 17570 states and 28269 transitions. Second operand has 19 states, 16 states have (on average 6.75) internal successors, (108), 12 states have internal predecessors, (108), 8 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-12-21 09:22:40,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:22:40,858 INFO L93 Difference]: Finished difference Result 274362 states and 624816 transitions. [2023-12-21 09:22:40,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 368 states. [2023-12-21 09:22:40,859 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 6.75) internal successors, (108), 12 states have internal predecessors, (108), 8 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 157 [2023-12-21 09:22:40,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:22:44,830 INFO L225 Difference]: With dead ends: 274362 [2023-12-21 09:22:44,830 INFO L226 Difference]: Without dead ends: 257119 [2023-12-21 09:22:45,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 380 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67416 ImplicationChecksByTransitivity, 60.3s TimeCoverageRelationStatistics Valid=10562, Invalid=134980, Unknown=0, NotChecked=0, Total=145542 [2023-12-21 09:22:45,389 INFO L413 NwaCegarLoop]: 1951 mSDtfsCounter, 26190 mSDsluCounter, 17618 mSDsCounter, 0 mSdLazyCounter, 72840 mSolverCounterSat, 12535 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26195 SdHoareTripleChecker+Valid, 19569 SdHoareTripleChecker+Invalid, 85375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.6s SdHoareTripleChecker+Time, 12535 IncrementalHoareTripleChecker+Valid, 72840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.8s IncrementalHoareTripleChecker+Time [2023-12-21 09:22:45,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26195 Valid, 19569 Invalid, 85375 Unknown, 0 Unchecked, 0.6s Time], IncrementalHoareTripleChecker [12535 Valid, 72840 Invalid, 0 Unknown, 0 Unchecked, 83.8s Time] [2023-12-21 09:22:45,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257119 states.