/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 true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 22:48:54,522 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 22:48:54,592 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 22:48:54,598 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 22:48:54,598 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 22:48:54,612 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 22:48:54,613 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 22:48:54,613 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 22:48:54,613 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 22:48:54,614 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 22:48:54,614 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 22:48:54,614 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 22:48:54,614 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 22:48:54,615 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 22:48:54,615 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 22:48:54,615 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 22:48:54,615 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 22:48:54,616 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 22:48:54,616 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 22:48:54,616 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 22:48:54,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 22:48:54,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 22:48:54,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 22:48:54,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 22:48:54,617 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 22:48:54,618 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 22:48:54,618 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 22:48:54,618 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 22:48:54,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 22:48:54,619 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 22:48:54,619 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 22:48:54,619 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 22:48:54,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 22:48:54,620 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 22:48:54,620 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 22:48:54,620 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 22:48:54,620 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 22:48:54,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 22:48:54,621 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 22:48:54,621 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 22:48:54,621 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 22:48:54,621 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 22:48:54,621 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 22:48:54,621 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 22:48:54,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 22:48:54,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 22:48:54,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 22:48:54,947 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 22:48:54,948 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 22:48:54,949 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_productSimulator.cil.c [2023-12-19 22:48:55,905 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 22:48:56,228 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 22:48:56,229 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_productSimulator.cil.c [2023-12-19 22:48:56,243 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a78185e43/4247e003243641bdac5f71282a6955da/FLAG708962ed6 [2023-12-19 22:48:56,493 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a78185e43/4247e003243641bdac5f71282a6955da [2023-12-19 22:48:56,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 22:48:56,496 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 22:48:56,497 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 22:48:56,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 22:48:56,500 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 22:48:56,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:48:56" (1/1) ... [2023-12-19 22:48:56,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2102e073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:48:56, skipping insertion in model container [2023-12-19 22:48:56,501 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:48:56" (1/1) ... [2023-12-19 22:48:56,543 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 22:48:56,906 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_spec3_productSimulator.cil.c[28992,29005] [2023-12-19 22:48:57,051 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 22:48:57,060 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 22:48:57,069 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2023-12-19 22:48:57,088 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [414] [2023-12-19 22:48:57,088 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1089] [2023-12-19 22:48:57,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1191] [2023-12-19 22:48:57,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1200] [2023-12-19 22:48:57,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3061] [2023-12-19 22:48:57,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3132] [2023-12-19 22:48:57,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3250] [2023-12-19 22:48:57,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3599] [2023-12-19 22:48:57,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [3614] [2023-12-19 22:48:57,129 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_spec3_productSimulator.cil.c[28992,29005] [2023-12-19 22:48:57,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 22:48:57,214 INFO L206 MainTranslator]: Completed translation [2023-12-19 22:48:57,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:48:57 WrapperNode [2023-12-19 22:48:57,214 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 22:48:57,215 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 22:48:57,215 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 22:48:57,215 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 22:48:57,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:48:57" (1/1) ... [2023-12-19 22:48:57,238 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:48:57" (1/1) ... [2023-12-19 22:48:57,272 INFO L138 Inliner]: procedures = 108, calls = 388, calls flagged for inlining = 33, calls inlined = 29, statements flattened = 1104 [2023-12-19 22:48:57,272 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 22:48:57,273 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 22:48:57,273 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 22:48:57,273 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 22:48:57,294 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:48:57" (1/1) ... [2023-12-19 22:48:57,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:48:57" (1/1) ... [2023-12-19 22:48:57,306 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:48:57" (1/1) ... [2023-12-19 22:48:57,347 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]. [2023-12-19 22:48:57,347 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:48:57" (1/1) ... [2023-12-19 22:48:57,348 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:48:57" (1/1) ... [2023-12-19 22:48:57,376 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:48:57" (1/1) ... [2023-12-19 22:48:57,384 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:48:57" (1/1) ... [2023-12-19 22:48:57,402 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:48:57" (1/1) ... [2023-12-19 22:48:57,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:48:57" (1/1) ... [2023-12-19 22:48:57,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 22:48:57,430 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 22:48:57,430 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 22:48:57,430 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 22:48:57,431 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:48:57" (1/1) ... [2023-12-19 22:48:57,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 22:48:57,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:48:57,467 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) [2023-12-19 22:48:57,475 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 [2023-12-19 22:48:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-12-19 22:48:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-12-19 22:48:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-19 22:48:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-19 22:48:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-19 22:48:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-19 22:48:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__twothirdsfull [2023-12-19 22:48:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__twothirdsfull [2023-12-19 22:48:57,490 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-19 22:48:57,490 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-19 22:48:57,490 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__before__empty [2023-12-19 22:48:57,490 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__before__empty [2023-12-19 22:48:57,490 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-19 22:48:57,490 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-19 22:48:57,490 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-19 22:48:57,490 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-19 22:48:57,490 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-19 22:48:57,490 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-19 22:48:57,490 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__before__weight [2023-12-19 22:48:57,490 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__before__weight [2023-12-19 22:48:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-19 22:48:57,491 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-19 22:48:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-19 22:48:57,491 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-19 22:48:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-19 22:48:57,491 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-19 22:48:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2023-12-19 22:48:57,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2023-12-19 22:48:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 22:48:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-19 22:48:57,491 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-19 22:48:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-19 22:48:57,492 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-19 22:48:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-19 22:48:57,492 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-19 22:48:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-19 22:48:57,492 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-19 22:48:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__before__overloaded [2023-12-19 22:48:57,492 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__before__overloaded [2023-12-19 22:48:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-19 22:48:57,492 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-19 22:48:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-19 22:48:57,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-19 22:48:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-19 22:48:57,493 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-19 22:48:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__before__weight [2023-12-19 22:48:57,493 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__before__weight [2023-12-19 22:48:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__executivefloor [2023-12-19 22:48:57,493 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__executivefloor [2023-12-19 22:48:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-12-19 22:48:57,493 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-12-19 22:48:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-19 22:48:57,493 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-19 22:48:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__executivefloor [2023-12-19 22:48:57,493 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__executivefloor [2023-12-19 22:48:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-19 22:48:57,493 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-19 22:48:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-12-19 22:48:57,494 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-12-19 22:48:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-19 22:48:57,494 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-19 22:48:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-19 22:48:57,494 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-19 22:48:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-19 22:48:57,494 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-19 22:48:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 22:48:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 22:48:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-19 22:48:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-19 22:48:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-19 22:48:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-19 22:48:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-19 22:48:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-19 22:48:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-19 22:48:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-19 22:48:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-19 22:48:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-19 22:48:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-19 22:48:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-19 22:48:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-19 22:48:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-19 22:48:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-19 22:48:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-19 22:48:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-19 22:48:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-19 22:48:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-12-19 22:48:57,496 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-12-19 22:48:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-19 22:48:57,496 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-19 22:48:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__twothirdsfull [2023-12-19 22:48:57,496 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__twothirdsfull [2023-12-19 22:48:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 22:48:57,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 22:48:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-19 22:48:57,496 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-19 22:48:57,675 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 22:48:57,677 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 22:48:58,502 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 22:48:58,568 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 22:48:58,568 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 22:48:58,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:48:58 BoogieIcfgContainer [2023-12-19 22:48:58,569 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 22:48:58,570 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 22:48:58,570 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 22:48:58,572 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 22:48:58,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 10:48:56" (1/3) ... [2023-12-19 22:48:58,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73fc174e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:48:58, skipping insertion in model container [2023-12-19 22:48:58,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:48:57" (2/3) ... [2023-12-19 22:48:58,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73fc174e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:48:58, skipping insertion in model container [2023-12-19 22:48:58,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:48:58" (3/3) ... [2023-12-19 22:48:58,577 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_productSimulator.cil.c [2023-12-19 22:48:58,588 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 22:48:58,589 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 22:48:58,638 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 22:48:58,643 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;@716818a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 22:48:58,643 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 22:48:58,650 INFO L276 IsEmpty]: Start isEmpty. Operand has 676 states, 503 states have (on average 1.662027833001988) internal successors, (836), 527 states have internal predecessors, (836), 135 states have call successors, (135), 36 states have call predecessors, (135), 36 states have return successors, (135), 130 states have call predecessors, (135), 135 states have call successors, (135) [2023-12-19 22:48:58,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-19 22:48:58,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:48:58,662 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] [2023-12-19 22:48:58,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:48:58,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:48:58,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1877300226, now seen corresponding path program 1 times [2023-12-19 22:48:58,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:48:58,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051707893] [2023-12-19 22:48:58,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:48:58,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:48:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:48:59,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:48:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:48:59,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:48:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:48:59,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:48:59,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:48:59,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:48:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:48:59,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:48:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:48:59,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 22:48:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:48:59,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:48:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:48:59,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:48:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:48:59,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:48:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:48:59,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:48:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:48:59,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 22:48:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:48:59,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 22:48:59,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:48:59,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:48:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:48:59,501 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 22:48:59,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:48:59,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051707893] [2023-12-19 22:48:59,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051707893] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:48:59,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:48:59,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:48:59,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284358111] [2023-12-19 22:48:59,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:48:59,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:48:59,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:48:59,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:48:59,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:48:59,533 INFO L87 Difference]: Start difference. First operand has 676 states, 503 states have (on average 1.662027833001988) internal successors, (836), 527 states have internal predecessors, (836), 135 states have call successors, (135), 36 states have call predecessors, (135), 36 states have return successors, (135), 130 states have call predecessors, (135), 135 states have call successors, (135) Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-19 22:49:04,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:49:04,206 INFO L93 Difference]: Finished difference Result 1587 states and 2701 transitions. [2023-12-19 22:49:04,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:49:04,208 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 82 [2023-12-19 22:49:04,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:49:04,231 INFO L225 Difference]: With dead ends: 1587 [2023-12-19 22:49:04,231 INFO L226 Difference]: Without dead ends: 919 [2023-12-19 22:49:04,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:49:04,243 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 895 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 3323 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 3526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 3323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-19 22:49:04,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1022 Valid, 1509 Invalid, 3526 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [203 Valid, 3323 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-19 22:49:04,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-12-19 22:49:04,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 670. [2023-12-19 22:49:04,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 500 states have (on average 1.646) internal successors, (823), 522 states have internal predecessors, (823), 135 states have call successors, (135), 36 states have call predecessors, (135), 34 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-19 22:49:04,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1090 transitions. [2023-12-19 22:49:04,517 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1090 transitions. Word has length 82 [2023-12-19 22:49:04,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:49:04,518 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 1090 transitions. [2023-12-19 22:49:04,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-19 22:49:04,518 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1090 transitions. [2023-12-19 22:49:04,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-19 22:49:04,526 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:49:04,527 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] [2023-12-19 22:49:04,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 22:49:04,527 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:49:04,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:49:04,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1716307438, now seen corresponding path program 1 times [2023-12-19 22:49:04,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:49:04,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425469543] [2023-12-19 22:49:04,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:49:04,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:49:04,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:04,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:04,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:49:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:04,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:49:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:04,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:49:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:04,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:49:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:04,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 22:49:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:05,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:05,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:49:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:05,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:05,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:49:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:05,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:49:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:05,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 22:49:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:05,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 22:49:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:05,233 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 22:49:05,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:49:05,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425469543] [2023-12-19 22:49:05,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425469543] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:49:05,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:49:05,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:49:05,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290318199] [2023-12-19 22:49:05,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:49:05,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:49:05,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:49:05,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:49:05,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:49:05,236 INFO L87 Difference]: Start difference. First operand 670 states and 1090 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:49:11,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:49:11,073 INFO L93 Difference]: Finished difference Result 1585 states and 2674 transitions. [2023-12-19 22:49:11,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 22:49:11,074 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 83 [2023-12-19 22:49:11,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:49:11,081 INFO L225 Difference]: With dead ends: 1585 [2023-12-19 22:49:11,081 INFO L226 Difference]: Without dead ends: 943 [2023-12-19 22:49:11,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-19 22:49:11,085 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 1678 mSDsluCounter, 1834 mSDsCounter, 0 mSdLazyCounter, 5844 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1807 SdHoareTripleChecker+Valid, 2215 SdHoareTripleChecker+Invalid, 6301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 5844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-19 22:49:11,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1807 Valid, 2215 Invalid, 6301 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [457 Valid, 5844 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-19 22:49:11,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2023-12-19 22:49:11,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 682. [2023-12-19 22:49:11,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 509 states have (on average 1.6444007858546168) internal successors, (837), 533 states have internal predecessors, (837), 136 states have call successors, (136), 36 states have call predecessors, (136), 36 states have return successors, (135), 129 states have call predecessors, (135), 133 states have call successors, (135) [2023-12-19 22:49:11,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1108 transitions. [2023-12-19 22:49:11,200 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1108 transitions. Word has length 83 [2023-12-19 22:49:11,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:49:11,200 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 1108 transitions. [2023-12-19 22:49:11,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:49:11,200 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1108 transitions. [2023-12-19 22:49:11,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-19 22:49:11,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:49:11,201 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] [2023-12-19 22:49:11,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 22:49:11,201 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:49:11,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:49:11,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1020586712, now seen corresponding path program 1 times [2023-12-19 22:49:11,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:49:11,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434777008] [2023-12-19 22:49:11,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:49:11,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:49:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:11,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:11,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:49:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:11,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:49:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:11,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:49:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:11,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:49:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:11,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 22:49:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:11,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:11,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:49:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:11,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:11,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:49:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:11,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 22:49:11,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:11,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 22:49:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:11,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 22:49:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:11,631 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 22:49:11,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:49:11,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434777008] [2023-12-19 22:49:11,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434777008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:49:11,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:49:11,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:49:11,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635815080] [2023-12-19 22:49:11,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:49:11,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:49:11,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:49:11,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:49:11,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:49:11,636 INFO L87 Difference]: Start difference. First operand 682 states and 1108 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:49:17,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:49:17,904 INFO L93 Difference]: Finished difference Result 1598 states and 2693 transitions. [2023-12-19 22:49:17,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 22:49:17,908 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 84 [2023-12-19 22:49:17,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:49:17,915 INFO L225 Difference]: With dead ends: 1598 [2023-12-19 22:49:17,916 INFO L226 Difference]: Without dead ends: 944 [2023-12-19 22:49:17,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-12-19 22:49:17,921 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 970 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 6186 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 2566 SdHoareTripleChecker+Invalid, 6390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 6186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:49:17,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 2566 Invalid, 6390 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [204 Valid, 6186 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-19 22:49:17,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2023-12-19 22:49:18,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 682. [2023-12-19 22:49:18,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 509 states have (on average 1.6424361493123771) internal successors, (836), 533 states have internal predecessors, (836), 136 states have call successors, (136), 36 states have call predecessors, (136), 36 states have return successors, (135), 129 states have call predecessors, (135), 133 states have call successors, (135) [2023-12-19 22:49:18,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1107 transitions. [2023-12-19 22:49:18,022 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1107 transitions. Word has length 84 [2023-12-19 22:49:18,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:49:18,023 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 1107 transitions. [2023-12-19 22:49:18,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:49:18,023 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1107 transitions. [2023-12-19 22:49:18,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-19 22:49:18,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:49:18,025 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] [2023-12-19 22:49:18,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 22:49:18,025 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:49:18,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:49:18,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1910056898, now seen corresponding path program 1 times [2023-12-19 22:49:18,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:49:18,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683354171] [2023-12-19 22:49:18,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:49:18,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:49:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:18,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:18,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:18,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:49:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:18,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:49:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:18,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:49:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:18,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:49:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:18,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 22:49:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:18,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:18,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:49:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:18,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:18,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:49:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:18,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 22:49:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:18,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 22:49:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:18,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 22:49:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:18,486 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 22:49:18,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:49:18,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683354171] [2023-12-19 22:49:18,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683354171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:49:18,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:49:18,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:49:18,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473059272] [2023-12-19 22:49:18,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:49:18,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:49:18,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:49:18,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:49:18,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:49:18,491 INFO L87 Difference]: Start difference. First operand 682 states and 1107 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-19 22:49:23,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:49:23,057 INFO L93 Difference]: Finished difference Result 1591 states and 2675 transitions. [2023-12-19 22:49:23,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:49:23,057 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2023-12-19 22:49:23,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:49:23,062 INFO L225 Difference]: With dead ends: 1591 [2023-12-19 22:49:23,062 INFO L226 Difference]: Without dead ends: 908 [2023-12-19 22:49:23,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:49:23,065 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 1584 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 3046 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 3510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 3046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:49:23,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1715 Valid, 1191 Invalid, 3510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [464 Valid, 3046 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-19 22:49:23,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2023-12-19 22:49:23,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 659. [2023-12-19 22:49:23,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 489 states have (on average 1.6319018404907975) internal successors, (798), 511 states have internal predecessors, (798), 135 states have call successors, (135), 36 states have call predecessors, (135), 34 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-19 22:49:23,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 1065 transitions. [2023-12-19 22:49:23,142 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 1065 transitions. Word has length 84 [2023-12-19 22:49:23,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:49:23,142 INFO L495 AbstractCegarLoop]: Abstraction has 659 states and 1065 transitions. [2023-12-19 22:49:23,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-19 22:49:23,143 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 1065 transitions. [2023-12-19 22:49:23,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-19 22:49:23,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:49:23,143 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] [2023-12-19 22:49:23,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 22:49:23,144 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:49:23,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:49:23,144 INFO L85 PathProgramCache]: Analyzing trace with hash 289092474, now seen corresponding path program 1 times [2023-12-19 22:49:23,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:49:23,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914601770] [2023-12-19 22:49:23,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:49:23,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:49:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:23,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:23,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:49:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:23,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:49:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:23,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:49:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:23,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:49:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:23,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 22:49:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:23,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:23,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:49:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:23,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:23,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:49:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:23,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 22:49:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:23,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-19 22:49:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:23,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 22:49:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:23,674 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 22:49:23,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:49:23,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914601770] [2023-12-19 22:49:23,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914601770] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:49:23,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:49:23,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:49:23,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636407063] [2023-12-19 22:49:23,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:49:23,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:49:23,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:49:23,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:49:23,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:49:23,676 INFO L87 Difference]: Start difference. First operand 659 states and 1065 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:49:29,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:49:29,383 INFO L93 Difference]: Finished difference Result 1555 states and 2607 transitions. [2023-12-19 22:49:29,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 22:49:29,384 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 85 [2023-12-19 22:49:29,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:49:29,389 INFO L225 Difference]: With dead ends: 1555 [2023-12-19 22:49:29,389 INFO L226 Difference]: Without dead ends: 902 [2023-12-19 22:49:29,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-19 22:49:29,392 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 965 mSDsluCounter, 1865 mSDsCounter, 0 mSdLazyCounter, 5860 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 2240 SdHoareTripleChecker+Invalid, 6072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 5860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-19 22:49:29,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 2240 Invalid, 6072 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [212 Valid, 5860 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-19 22:49:29,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2023-12-19 22:49:29,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 653. [2023-12-19 22:49:29,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 483 states have (on average 1.6252587991718426) internal successors, (785), 505 states have internal predecessors, (785), 135 states have call successors, (135), 36 states have call predecessors, (135), 34 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-19 22:49:29,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 1052 transitions. [2023-12-19 22:49:29,464 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 1052 transitions. Word has length 85 [2023-12-19 22:49:29,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:49:29,464 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 1052 transitions. [2023-12-19 22:49:29,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:49:29,464 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 1052 transitions. [2023-12-19 22:49:29,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-19 22:49:29,465 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:49:29,465 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] [2023-12-19 22:49:29,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 22:49:29,465 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:49:29,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:49:29,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1501321920, now seen corresponding path program 1 times [2023-12-19 22:49:29,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:49:29,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608213533] [2023-12-19 22:49:29,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:49:29,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:49:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:29,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:29,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:49:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:29,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:49:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:29,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:49:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:29,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:49:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:29,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 22:49:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:29,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:29,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:49:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:29,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:29,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:49:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:29,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 22:49:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:29,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 22:49:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:29,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 22:49:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:29,918 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 22:49:29,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:49:29,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608213533] [2023-12-19 22:49:29,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608213533] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:49:29,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:49:29,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:49:29,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35844022] [2023-12-19 22:49:29,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:49:29,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:49:29,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:49:29,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:49:29,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:49:29,920 INFO L87 Difference]: Start difference. First operand 653 states and 1052 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:49:36,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:49:36,414 INFO L93 Difference]: Finished difference Result 1527 states and 2558 transitions. [2023-12-19 22:49:36,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 22:49:36,415 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 86 [2023-12-19 22:49:36,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:49:36,420 INFO L225 Difference]: With dead ends: 1527 [2023-12-19 22:49:36,421 INFO L226 Difference]: Without dead ends: 902 [2023-12-19 22:49:36,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-19 22:49:36,426 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 919 mSDsluCounter, 1837 mSDsCounter, 0 mSdLazyCounter, 5734 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 5945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 5734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:49:36,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 2208 Invalid, 5945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 5734 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-19 22:49:36,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2023-12-19 22:49:36,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 653. [2023-12-19 22:49:36,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 483 states have (on average 1.6231884057971016) internal successors, (784), 505 states have internal predecessors, (784), 135 states have call successors, (135), 36 states have call predecessors, (135), 34 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-19 22:49:36,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 1051 transitions. [2023-12-19 22:49:36,519 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 1051 transitions. Word has length 86 [2023-12-19 22:49:36,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:49:36,519 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 1051 transitions. [2023-12-19 22:49:36,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:49:36,520 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 1051 transitions. [2023-12-19 22:49:36,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-19 22:49:36,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:49:36,526 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] [2023-12-19 22:49:36,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 22:49:36,526 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:49:36,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:49:36,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1068165015, now seen corresponding path program 1 times [2023-12-19 22:49:36,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:49:36,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325845680] [2023-12-19 22:49:36,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:49:36,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:49:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:36,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:36,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:49:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:36,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:49:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:36,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:49:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:36,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:49:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:36,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 22:49:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:36,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:36,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:49:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:36,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:37,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:49:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:37,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 22:49:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:37,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 22:49:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:37,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 22:49:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:37,039 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 22:49:37,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:49:37,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325845680] [2023-12-19 22:49:37,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325845680] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:49:37,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:49:37,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:49:37,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412059158] [2023-12-19 22:49:37,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:49:37,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:49:37,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:49:37,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:49:37,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:49:37,041 INFO L87 Difference]: Start difference. First operand 653 states and 1051 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:49:42,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:49:42,570 INFO L93 Difference]: Finished difference Result 1543 states and 2576 transitions. [2023-12-19 22:49:42,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 22:49:42,571 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 87 [2023-12-19 22:49:42,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:49:42,576 INFO L225 Difference]: With dead ends: 1543 [2023-12-19 22:49:42,576 INFO L226 Difference]: Without dead ends: 896 [2023-12-19 22:49:42,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-19 22:49:42,594 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 1582 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 5612 mSolverCounterSat, 458 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1708 SdHoareTripleChecker+Valid, 2227 SdHoareTripleChecker+Invalid, 6070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 458 IncrementalHoareTripleChecker+Valid, 5612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-19 22:49:42,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1708 Valid, 2227 Invalid, 6070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [458 Valid, 5612 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-19 22:49:42,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-12-19 22:49:42,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 647. [2023-12-19 22:49:42,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 477 states have (on average 1.6163522012578617) internal successors, (771), 499 states have internal predecessors, (771), 135 states have call successors, (135), 36 states have call predecessors, (135), 34 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-19 22:49:42,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 1038 transitions. [2023-12-19 22:49:42,680 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 1038 transitions. Word has length 87 [2023-12-19 22:49:42,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:49:42,680 INFO L495 AbstractCegarLoop]: Abstraction has 647 states and 1038 transitions. [2023-12-19 22:49:42,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:49:42,681 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 1038 transitions. [2023-12-19 22:49:42,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-19 22:49:42,681 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:49:42,681 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] [2023-12-19 22:49:42,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 22:49:42,682 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:49:42,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:49:42,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1797524481, now seen corresponding path program 1 times [2023-12-19 22:49:42,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:49:42,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614562309] [2023-12-19 22:49:42,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:49:42,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:49:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:42,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:42,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:49:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:42,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:49:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:42,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:49:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:42,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:49:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:43,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 22:49:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:43,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:43,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:49:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:43,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:43,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:49:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:43,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 22:49:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:43,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 22:49:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:43,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:49:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:43,239 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 22:49:43,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:49:43,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614562309] [2023-12-19 22:49:43,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614562309] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:49:43,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:49:43,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:49:43,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398994347] [2023-12-19 22:49:43,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:49:43,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:49:43,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:49:43,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:49:43,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:49:43,241 INFO L87 Difference]: Start difference. First operand 647 states and 1038 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:49:49,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:49:49,346 INFO L93 Difference]: Finished difference Result 1515 states and 2529 transitions. [2023-12-19 22:49:49,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 22:49:49,347 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 88 [2023-12-19 22:49:49,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:49:49,351 INFO L225 Difference]: With dead ends: 1515 [2023-12-19 22:49:49,351 INFO L226 Difference]: Without dead ends: 896 [2023-12-19 22:49:49,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-19 22:49:49,354 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 895 mSDsluCounter, 2002 mSDsCounter, 0 mSdLazyCounter, 5707 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 2406 SdHoareTripleChecker+Invalid, 5913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 5707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-19 22:49:49,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 2406 Invalid, 5913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 5707 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-19 22:49:49,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-12-19 22:49:49,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 647. [2023-12-19 22:49:49,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 477 states have (on average 1.6142557651991614) internal successors, (770), 499 states have internal predecessors, (770), 135 states have call successors, (135), 36 states have call predecessors, (135), 34 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-19 22:49:49,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 1037 transitions. [2023-12-19 22:49:49,458 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 1037 transitions. Word has length 88 [2023-12-19 22:49:49,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:49:49,458 INFO L495 AbstractCegarLoop]: Abstraction has 647 states and 1037 transitions. [2023-12-19 22:49:49,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:49:49,459 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 1037 transitions. [2023-12-19 22:49:49,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-19 22:49:49,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:49:49,461 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] [2023-12-19 22:49:49,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 22:49:49,461 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:49:49,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:49:49,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1902017147, now seen corresponding path program 1 times [2023-12-19 22:49:49,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:49:49,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395423283] [2023-12-19 22:49:49,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:49:49,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:49:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:49,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:49,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:49:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:49,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:49:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:49,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:49:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:49,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:49:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:49,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 22:49:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:49,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:49,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:49:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:49,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:49,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:49:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:49,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-19 22:49:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:49,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:49:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:49,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-19 22:49:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:49,935 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 22:49:49,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:49:49,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395423283] [2023-12-19 22:49:49,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395423283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:49:49,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:49:49,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:49:49,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225765205] [2023-12-19 22:49:49,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:49:49,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:49:49,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:49:49,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:49:49,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:49:49,937 INFO L87 Difference]: Start difference. First operand 647 states and 1037 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:49:54,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:49:54,935 INFO L93 Difference]: Finished difference Result 1531 states and 2545 transitions. [2023-12-19 22:49:54,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 22:49:54,936 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 89 [2023-12-19 22:49:54,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:49:54,940 INFO L225 Difference]: With dead ends: 1531 [2023-12-19 22:49:54,940 INFO L226 Difference]: Without dead ends: 890 [2023-12-19 22:49:54,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-19 22:49:54,942 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 1561 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 5474 mSolverCounterSat, 461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 2209 SdHoareTripleChecker+Invalid, 5935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 5474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-19 22:49:54,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 2209 Invalid, 5935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 5474 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-19 22:49:54,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2023-12-19 22:49:55,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 641. [2023-12-19 22:49:55,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 471 states have (on average 1.6072186836518048) internal successors, (757), 493 states have internal predecessors, (757), 135 states have call successors, (135), 36 states have call predecessors, (135), 34 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-19 22:49:55,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 1024 transitions. [2023-12-19 22:49:55,019 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 1024 transitions. Word has length 89 [2023-12-19 22:49:55,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:49:55,020 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 1024 transitions. [2023-12-19 22:49:55,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:49:55,020 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 1024 transitions. [2023-12-19 22:49:55,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-19 22:49:55,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:49:55,021 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] [2023-12-19 22:49:55,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 22:49:55,021 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:49:55,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:49:55,021 INFO L85 PathProgramCache]: Analyzing trace with hash -421170342, now seen corresponding path program 1 times [2023-12-19 22:49:55,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:49:55,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521354535] [2023-12-19 22:49:55,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:49:55,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:49:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:55,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:55,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:49:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:55,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:49:55,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:55,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:49:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:55,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:49:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:55,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 22:49:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:55,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:55,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:49:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:55,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:49:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:55,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:49:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:55,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-19 22:49:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:55,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:49:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:55,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-19 22:49:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:49:55,469 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 22:49:55,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:49:55,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521354535] [2023-12-19 22:49:55,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521354535] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:49:55,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:49:55,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:49:55,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633862850] [2023-12-19 22:49:55,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:49:55,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:49:55,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:49:55,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:49:55,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:49:55,470 INFO L87 Difference]: Start difference. First operand 641 states and 1024 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:50:00,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:50:00,496 INFO L93 Difference]: Finished difference Result 1503 states and 2500 transitions. [2023-12-19 22:50:00,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 22:50:00,496 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 89 [2023-12-19 22:50:00,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:50:00,514 INFO L225 Difference]: With dead ends: 1503 [2023-12-19 22:50:00,514 INFO L226 Difference]: Without dead ends: 890 [2023-12-19 22:50:00,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-19 22:50:00,518 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 1489 mSDsluCounter, 2128 mSDsCounter, 0 mSdLazyCounter, 5479 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1621 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 5908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 5479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-19 22:50:00,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1621 Valid, 2576 Invalid, 5908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 5479 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-19 22:50:00,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2023-12-19 22:50:00,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 641. [2023-12-19 22:50:00,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 471 states have (on average 1.605095541401274) internal successors, (756), 493 states have internal predecessors, (756), 135 states have call successors, (135), 36 states have call predecessors, (135), 34 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-19 22:50:00,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 1023 transitions. [2023-12-19 22:50:00,616 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 1023 transitions. Word has length 89 [2023-12-19 22:50:00,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:50:00,617 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 1023 transitions. [2023-12-19 22:50:00,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:50:00,617 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 1023 transitions. [2023-12-19 22:50:00,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-19 22:50:00,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:50:00,618 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] [2023-12-19 22:50:00,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 22:50:00,618 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:50:00,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:50:00,618 INFO L85 PathProgramCache]: Analyzing trace with hash -804184121, now seen corresponding path program 1 times [2023-12-19 22:50:00,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:50:00,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183249746] [2023-12-19 22:50:00,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:50:00,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:50:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:00,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:00,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:50:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:00,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:50:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:00,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:50:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:00,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:50:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:00,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 22:50:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:01,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:01,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:50:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:01,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:01,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:50:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:01,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 22:50:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:01,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 22:50:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:01,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 22:50:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:01,105 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 22:50:01,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:50:01,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183249746] [2023-12-19 22:50:01,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183249746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:50:01,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:50:01,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:50:01,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445038471] [2023-12-19 22:50:01,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:50:01,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:50:01,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:50:01,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:50:01,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:50:01,106 INFO L87 Difference]: Start difference. First operand 641 states and 1023 transitions. Second operand has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:50:07,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:50:07,388 INFO L93 Difference]: Finished difference Result 1512 states and 2507 transitions. [2023-12-19 22:50:07,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 22:50:07,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 90 [2023-12-19 22:50:07,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:50:07,392 INFO L225 Difference]: With dead ends: 1512 [2023-12-19 22:50:07,393 INFO L226 Difference]: Without dead ends: 899 [2023-12-19 22:50:07,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-12-19 22:50:07,395 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 864 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 5630 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 2536 SdHoareTripleChecker+Invalid, 5831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 5630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:50:07,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 2536 Invalid, 5831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 5630 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-19 22:50:07,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2023-12-19 22:50:07,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 647. [2023-12-19 22:50:07,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 477 states have (on average 1.5974842767295598) internal successors, (762), 499 states have internal predecessors, (762), 135 states have call successors, (135), 36 states have call predecessors, (135), 34 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-19 22:50:07,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 1029 transitions. [2023-12-19 22:50:07,472 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 1029 transitions. Word has length 90 [2023-12-19 22:50:07,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:50:07,473 INFO L495 AbstractCegarLoop]: Abstraction has 647 states and 1029 transitions. [2023-12-19 22:50:07,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:50:07,473 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 1029 transitions. [2023-12-19 22:50:07,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-19 22:50:07,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:50:07,474 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] [2023-12-19 22:50:07,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 22:50:07,474 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:50:07,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:50:07,474 INFO L85 PathProgramCache]: Analyzing trace with hash -144652599, now seen corresponding path program 1 times [2023-12-19 22:50:07,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:50:07,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60662639] [2023-12-19 22:50:07,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:50:07,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:50:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:07,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:07,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:50:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:07,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:50:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:07,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:50:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:07,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:50:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:07,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 22:50:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:07,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:07,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:50:07,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:07,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:07,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:50:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:07,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 22:50:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:07,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 22:50:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:07,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 22:50:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:07,972 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 22:50:07,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:50:07,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60662639] [2023-12-19 22:50:07,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60662639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:50:07,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:50:07,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:50:07,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081734542] [2023-12-19 22:50:07,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:50:07,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:50:07,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:50:07,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:50:07,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:50:07,973 INFO L87 Difference]: Start difference. First operand 647 states and 1029 transitions. Second operand has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:50:12,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:50:12,895 INFO L93 Difference]: Finished difference Result 1517 states and 2510 transitions. [2023-12-19 22:50:12,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 22:50:12,895 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 90 [2023-12-19 22:50:12,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:50:12,900 INFO L225 Difference]: With dead ends: 1517 [2023-12-19 22:50:12,900 INFO L226 Difference]: Without dead ends: 890 [2023-12-19 22:50:12,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:50:12,902 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 1489 mSDsluCounter, 1981 mSDsCounter, 0 mSdLazyCounter, 5450 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 2387 SdHoareTripleChecker+Invalid, 5893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 5450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:50:12,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 2387 Invalid, 5893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 5450 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-19 22:50:12,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2023-12-19 22:50:12,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 641. [2023-12-19 22:50:12,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 471 states have (on average 1.6029723991507432) internal successors, (755), 493 states have internal predecessors, (755), 135 states have call successors, (135), 36 states have call predecessors, (135), 34 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-19 22:50:12,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 1022 transitions. [2023-12-19 22:50:12,980 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 1022 transitions. Word has length 90 [2023-12-19 22:50:12,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:50:12,980 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 1022 transitions. [2023-12-19 22:50:12,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:50:12,980 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 1022 transitions. [2023-12-19 22:50:12,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-19 22:50:12,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:50:12,981 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] [2023-12-19 22:50:12,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 22:50:12,981 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:50:12,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:50:12,982 INFO L85 PathProgramCache]: Analyzing trace with hash -664724672, now seen corresponding path program 1 times [2023-12-19 22:50:12,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:50:12,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809688977] [2023-12-19 22:50:12,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:50:12,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:50:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:13,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:13,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:50:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:13,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:50:13,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:13,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:50:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:13,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:50:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:13,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 22:50:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:13,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:13,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:50:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:13,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:13,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:50:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:13,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 22:50:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:13,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 22:50:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:13,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 22:50:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:13,492 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:50:13,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:50:13,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809688977] [2023-12-19 22:50:13,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809688977] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:50:13,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431482551] [2023-12-19 22:50:13,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:50:13,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:50:13,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:50:13,528 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) [2023-12-19 22:50:13,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 22:50:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:13,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 1585 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 22:50:13,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:50:13,858 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-19 22:50:13,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:50:13,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431482551] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:50:13,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:50:13,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2023-12-19 22:50:13,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728188491] [2023-12-19 22:50:13,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:50:13,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 22:50:13,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:50:13,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 22:50:13,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-19 22:50:13,860 INFO L87 Difference]: Start difference. First operand 641 states and 1022 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:50:14,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:50:14,033 INFO L93 Difference]: Finished difference Result 1810 states and 2922 transitions. [2023-12-19 22:50:14,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 22:50:14,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 91 [2023-12-19 22:50:14,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:50:14,039 INFO L225 Difference]: With dead ends: 1810 [2023-12-19 22:50:14,039 INFO L226 Difference]: Without dead ends: 1199 [2023-12-19 22:50:14,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-19 22:50:14,062 INFO L413 NwaCegarLoop]: 1704 mSDtfsCounter, 985 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 2590 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:50:14,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 2590 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 22:50:14,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2023-12-19 22:50:14,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1185. [2023-12-19 22:50:14,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 879 states have (on average 1.6143344709897611) internal successors, (1419), 922 states have internal predecessors, (1419), 240 states have call successors, (240), 66 states have call predecessors, (240), 65 states have return successors, (244), 230 states have call predecessors, (244), 237 states have call successors, (244) [2023-12-19 22:50:14,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1903 transitions. [2023-12-19 22:50:14,200 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1903 transitions. Word has length 91 [2023-12-19 22:50:14,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:50:14,200 INFO L495 AbstractCegarLoop]: Abstraction has 1185 states and 1903 transitions. [2023-12-19 22:50:14,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:50:14,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1903 transitions. [2023-12-19 22:50:14,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-19 22:50:14,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:50:14,201 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] [2023-12-19 22:50:14,211 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 22:50:14,411 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,SelfDestructingSolverStorable12 [2023-12-19 22:50:14,411 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:50:14,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:50:14,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1007674210, now seen corresponding path program 1 times [2023-12-19 22:50:14,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:50:14,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100903955] [2023-12-19 22:50:14,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:50:14,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:50:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:14,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:14,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:50:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:14,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:50:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:14,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:50:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:14,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:50:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:14,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 22:50:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:14,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:14,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:50:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:14,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:14,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:50:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:14,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 22:50:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:14,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 22:50:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:14,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-19 22:50:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:14,957 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:50:14,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:50:14,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100903955] [2023-12-19 22:50:14,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100903955] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:50:14,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093553049] [2023-12-19 22:50:14,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:50:14,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:50:14,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:50:14,958 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) [2023-12-19 22:50:14,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 22:50:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:15,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 1586 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 22:50:15,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:50:15,313 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-19 22:50:15,313 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:50:15,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093553049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:50:15,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:50:15,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2023-12-19 22:50:15,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879491623] [2023-12-19 22:50:15,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:50:15,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 22:50:15,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:50:15,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 22:50:15,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-19 22:50:15,315 INFO L87 Difference]: Start difference. First operand 1185 states and 1903 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:50:15,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:50:15,566 INFO L93 Difference]: Finished difference Result 2898 states and 4684 transitions. [2023-12-19 22:50:15,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 22:50:15,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 92 [2023-12-19 22:50:15,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:50:15,574 INFO L225 Difference]: With dead ends: 2898 [2023-12-19 22:50:15,574 INFO L226 Difference]: Without dead ends: 1743 [2023-12-19 22:50:15,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-19 22:50:15,578 INFO L413 NwaCegarLoop]: 1754 mSDtfsCounter, 984 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 2638 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:50:15,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 2638 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 22:50:15,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2023-12-19 22:50:15,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1697. [2023-12-19 22:50:15,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1261 states have (on average 1.6241078509119746) internal successors, (2048), 1325 states have internal predecessors, (2048), 342 states have call successors, (342), 93 states have call predecessors, (342), 93 states have return successors, (349), 329 states have call predecessors, (349), 339 states have call successors, (349) [2023-12-19 22:50:15,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2739 transitions. [2023-12-19 22:50:15,800 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2739 transitions. Word has length 92 [2023-12-19 22:50:15,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:50:15,800 INFO L495 AbstractCegarLoop]: Abstraction has 1697 states and 2739 transitions. [2023-12-19 22:50:15,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-19 22:50:15,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2739 transitions. [2023-12-19 22:50:15,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-19 22:50:15,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:50:15,801 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] [2023-12-19 22:50:15,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 22:50:16,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-19 22:50:16,010 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:50:16,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:50:16,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1181058110, now seen corresponding path program 1 times [2023-12-19 22:50:16,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:50:16,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436323365] [2023-12-19 22:50:16,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:50:16,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:50:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:16,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:16,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:50:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:16,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:50:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:16,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:50:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:16,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:50:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:16,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 22:50:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:16,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:16,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:50:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:16,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:16,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:50:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:16,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 22:50:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:16,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 22:50:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:16,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 22:50:16,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:16,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:50:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:16,508 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 22:50:16,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:50:16,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436323365] [2023-12-19 22:50:16,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436323365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:50:16,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:50:16,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 22:50:16,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127388591] [2023-12-19 22:50:16,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:50:16,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 22:50:16,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:50:16,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 22:50:16,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:50:16,509 INFO L87 Difference]: Start difference. First operand 1697 states and 2739 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (17), 5 states have call predecessors, (17), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 22:50:26,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:50:26,166 INFO L93 Difference]: Finished difference Result 6369 states and 11119 transitions. [2023-12-19 22:50:26,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 22:50:26,167 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (17), 5 states have call predecessors, (17), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 94 [2023-12-19 22:50:26,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:50:26,193 INFO L225 Difference]: With dead ends: 6369 [2023-12-19 22:50:26,193 INFO L226 Difference]: Without dead ends: 4702 [2023-12-19 22:50:26,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-12-19 22:50:26,202 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 2513 mSDsluCounter, 1869 mSDsCounter, 0 mSdLazyCounter, 5599 mSolverCounterSat, 791 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2677 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 6390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 791 IncrementalHoareTripleChecker+Valid, 5599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-12-19 22:50:26,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2677 Valid, 2399 Invalid, 6390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [791 Valid, 5599 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2023-12-19 22:50:26,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4702 states. [2023-12-19 22:50:27,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4702 to 3998. [2023-12-19 22:50:27,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3998 states, 2822 states have (on average 1.5985116938341601) internal successors, (4511), 3042 states have internal predecessors, (4511), 934 states have call successors, (934), 179 states have call predecessors, (934), 241 states have return successors, (1485), 962 states have call predecessors, (1485), 930 states have call successors, (1485) [2023-12-19 22:50:27,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3998 states to 3998 states and 6930 transitions. [2023-12-19 22:50:27,062 INFO L78 Accepts]: Start accepts. Automaton has 3998 states and 6930 transitions. Word has length 94 [2023-12-19 22:50:27,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:50:27,062 INFO L495 AbstractCegarLoop]: Abstraction has 3998 states and 6930 transitions. [2023-12-19 22:50:27,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (17), 5 states have call predecessors, (17), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 22:50:27,062 INFO L276 IsEmpty]: Start isEmpty. Operand 3998 states and 6930 transitions. [2023-12-19 22:50:27,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-19 22:50:27,063 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:50:27,063 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] [2023-12-19 22:50:27,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 22:50:27,063 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:50:27,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:50:27,064 INFO L85 PathProgramCache]: Analyzing trace with hash 554509644, now seen corresponding path program 1 times [2023-12-19 22:50:27,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:50:27,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149735210] [2023-12-19 22:50:27,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:50:27,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:50:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:27,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:27,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:50:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:27,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:50:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:27,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:50:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:27,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:50:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:27,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 22:50:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:27,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:27,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:50:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:27,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:27,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:50:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:27,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 22:50:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:27,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 22:50:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:27,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 22:50:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:27,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-19 22:50:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:27,498 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:50:27,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:50:27,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149735210] [2023-12-19 22:50:27,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149735210] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:50:27,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325814773] [2023-12-19 22:50:27,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:50:27,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:50:27,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:50:27,500 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) [2023-12-19 22:50:27,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 22:50:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:27,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 1604 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:50:27,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:50:27,848 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-19 22:50:27,848 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:50:27,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325814773] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:50:27,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:50:27,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2023-12-19 22:50:27,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525010974] [2023-12-19 22:50:27,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:50:27,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 22:50:27,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:50:27,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 22:50:27,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-19 22:50:27,850 INFO L87 Difference]: Start difference. First operand 3998 states and 6930 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 22:50:29,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:50:29,339 INFO L93 Difference]: Finished difference Result 11883 states and 20742 transitions. [2023-12-19 22:50:29,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 22:50:29,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 95 [2023-12-19 22:50:29,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:50:29,418 INFO L225 Difference]: With dead ends: 11883 [2023-12-19 22:50:29,418 INFO L226 Difference]: Without dead ends: 7915 [2023-12-19 22:50:29,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-19 22:50:29,435 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 950 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 2008 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:50:29,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 2008 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 22:50:29,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7915 states. [2023-12-19 22:50:30,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7915 to 7911. [2023-12-19 22:50:30,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7911 states, 5610 states have (on average 1.5976827094474153) internal successors, (8963), 6025 states have internal predecessors, (8963), 1819 states have call successors, (1819), 356 states have call predecessors, (1819), 481 states have return successors, (2974), 1895 states have call predecessors, (2974), 1813 states have call successors, (2974) [2023-12-19 22:50:30,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7911 states to 7911 states and 13756 transitions. [2023-12-19 22:50:30,995 INFO L78 Accepts]: Start accepts. Automaton has 7911 states and 13756 transitions. Word has length 95 [2023-12-19 22:50:30,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:50:30,995 INFO L495 AbstractCegarLoop]: Abstraction has 7911 states and 13756 transitions. [2023-12-19 22:50:30,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-19 22:50:30,996 INFO L276 IsEmpty]: Start isEmpty. Operand 7911 states and 13756 transitions. [2023-12-19 22:50:30,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-19 22:50:30,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:50:30,997 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] [2023-12-19 22:50:31,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 22:50:31,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:50:31,198 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:50:31,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:50:31,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1066552488, now seen corresponding path program 1 times [2023-12-19 22:50:31,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:50:31,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474861466] [2023-12-19 22:50:31,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:50:31,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:50:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:31,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:31,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:50:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:31,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:50:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:31,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:50:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:31,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:50:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:31,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-19 22:50:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:31,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:31,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 22:50:31,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:31,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:31,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:50:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:31,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 22:50:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:31,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 22:50:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:31,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 22:50:31,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:31,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 22:50:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:31,703 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:50:31,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:50:31,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474861466] [2023-12-19 22:50:31,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474861466] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:50:31,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394365644] [2023-12-19 22:50:31,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:50:31,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:50:31,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:50:31,715 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) [2023-12-19 22:50:31,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 22:50:31,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:31,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 1604 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-19 22:50:31,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:50:32,114 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-19 22:50:32,114 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:50:32,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394365644] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:50:32,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:50:32,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2023-12-19 22:50:32,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955306273] [2023-12-19 22:50:32,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:50:32,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:50:32,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:50:32,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:50:32,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:50:32,115 INFO L87 Difference]: Start difference. First operand 7911 states and 13756 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 22:50:35,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:50:35,389 INFO L93 Difference]: Finished difference Result 21401 states and 38029 transitions. [2023-12-19 22:50:35,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:50:35,389 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) Word has length 96 [2023-12-19 22:50:35,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:50:35,452 INFO L225 Difference]: With dead ends: 21401 [2023-12-19 22:50:35,452 INFO L226 Difference]: Without dead ends: 13535 [2023-12-19 22:50:35,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2023-12-19 22:50:35,482 INFO L413 NwaCegarLoop]: 991 mSDtfsCounter, 874 mSDsluCounter, 3595 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 4586 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 22:50:35,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 4586 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 22:50:35,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13535 states. [2023-12-19 22:50:38,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13535 to 13455. [2023-12-19 22:50:38,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13455 states, 9530 states have (on average 1.5604407135362015) internal successors, (14871), 10221 states have internal predecessors, (14871), 3069 states have call successors, (3069), 640 states have call predecessors, (3069), 855 states have return successors, (5345), 3203 states have call predecessors, (5345), 3059 states have call successors, (5345) [2023-12-19 22:50:38,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13455 states to 13455 states and 23285 transitions. [2023-12-19 22:50:38,131 INFO L78 Accepts]: Start accepts. Automaton has 13455 states and 23285 transitions. Word has length 96 [2023-12-19 22:50:38,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:50:38,131 INFO L495 AbstractCegarLoop]: Abstraction has 13455 states and 23285 transitions. [2023-12-19 22:50:38,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-19 22:50:38,131 INFO L276 IsEmpty]: Start isEmpty. Operand 13455 states and 23285 transitions. [2023-12-19 22:50:38,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-19 22:50:38,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:50:38,132 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] [2023-12-19 22:50:38,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-19 22:50:38,339 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,SelfDestructingSolverStorable16 [2023-12-19 22:50:38,340 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:50:38,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:50:38,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1747578000, now seen corresponding path program 1 times [2023-12-19 22:50:38,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:50:38,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299311117] [2023-12-19 22:50:38,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:50:38,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:50:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:38,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:38,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:50:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:38,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:50:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:38,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:50:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:38,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:50:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:38,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-19 22:50:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:38,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:38,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 22:50:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:38,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:38,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:50:38,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:38,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 22:50:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:38,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 22:50:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:38,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 22:50:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:38,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 22:50:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:38,754 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 22:50:38,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:50:38,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299311117] [2023-12-19 22:50:38,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299311117] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:50:38,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:50:38,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:50:38,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506327621] [2023-12-19 22:50:38,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:50:38,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:50:38,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:50:38,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:50:38,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:50:38,755 INFO L87 Difference]: Start difference. First operand 13455 states and 23285 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-19 22:50:46,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:50:46,720 INFO L93 Difference]: Finished difference Result 29066 states and 51955 transitions. [2023-12-19 22:50:46,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:50:46,721 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 96 [2023-12-19 22:50:46,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:50:46,784 INFO L225 Difference]: With dead ends: 29066 [2023-12-19 22:50:46,784 INFO L226 Difference]: Without dead ends: 15656 [2023-12-19 22:50:46,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:50:46,820 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 1459 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 2932 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 3354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 2932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-19 22:50:46,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 1459 Invalid, 3354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [422 Valid, 2932 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-19 22:50:46,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15656 states. [2023-12-19 22:50:49,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15656 to 14391. [2023-12-19 22:50:49,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14391 states, 9950 states have (on average 1.552462311557789) internal successors, (15447), 10721 states have internal predecessors, (15447), 3549 states have call successors, (3549), 648 states have call predecessors, (3549), 891 states have return successors, (6379), 3711 states have call predecessors, (6379), 3539 states have call successors, (6379) [2023-12-19 22:50:50,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14391 states to 14391 states and 25375 transitions. [2023-12-19 22:50:50,018 INFO L78 Accepts]: Start accepts. Automaton has 14391 states and 25375 transitions. Word has length 96 [2023-12-19 22:50:50,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:50:50,018 INFO L495 AbstractCegarLoop]: Abstraction has 14391 states and 25375 transitions. [2023-12-19 22:50:50,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-19 22:50:50,018 INFO L276 IsEmpty]: Start isEmpty. Operand 14391 states and 25375 transitions. [2023-12-19 22:50:50,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-19 22:50:50,020 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:50:50,020 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] [2023-12-19 22:50:50,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-19 22:50:50,020 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:50:50,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:50:50,020 INFO L85 PathProgramCache]: Analyzing trace with hash -877295678, now seen corresponding path program 1 times [2023-12-19 22:50:50,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:50:50,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291979906] [2023-12-19 22:50:50,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:50:50,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:50:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:50,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:50,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:50:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:50,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:50:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:50,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:50:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:50,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:50:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:50,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-19 22:50:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:50,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:50,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 22:50:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:50,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:50:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:50,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:50:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:50,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 22:50:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:50,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 22:50:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:50,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 22:50:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:50,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:50:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:50,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-19 22:50:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:50:50,630 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-19 22:50:50,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:50:50,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291979906] [2023-12-19 22:50:50,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291979906] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:50:50,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:50:50,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 22:50:50,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703600910] [2023-12-19 22:50:50,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:50:50,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 22:50:50,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:50:50,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 22:50:50,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:50:50,633 INFO L87 Difference]: Start difference. First operand 14391 states and 25375 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-19 22:51:05,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:51:05,357 INFO L93 Difference]: Finished difference Result 45523 states and 85492 transitions. [2023-12-19 22:51:05,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 22:51:05,357 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 104 [2023-12-19 22:51:05,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:51:05,504 INFO L225 Difference]: With dead ends: 45523 [2023-12-19 22:51:05,504 INFO L226 Difference]: Without dead ends: 31177 [2023-12-19 22:51:05,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-12-19 22:51:05,560 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 3688 mSDsluCounter, 1856 mSDsCounter, 0 mSdLazyCounter, 5185 mSolverCounterSat, 1213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3858 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 6398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1213 IncrementalHoareTripleChecker+Valid, 5185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:51:05,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3858 Valid, 2384 Invalid, 6398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1213 Valid, 5185 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2023-12-19 22:51:05,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31177 states. [2023-12-19 22:51:11,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31177 to 28543. [2023-12-19 22:51:11,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28543 states, 19724 states have (on average 1.5488237679983776) internal successors, (30549), 21255 states have internal predecessors, (30549), 7039 states have call successors, (7039), 1284 states have call predecessors, (7039), 1779 states have return successors, (14769), 7383 states have call predecessors, (14769), 7021 states have call successors, (14769) [2023-12-19 22:51:11,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28543 states to 28543 states and 52357 transitions. [2023-12-19 22:51:11,595 INFO L78 Accepts]: Start accepts. Automaton has 28543 states and 52357 transitions. Word has length 104 [2023-12-19 22:51:11,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:51:11,596 INFO L495 AbstractCegarLoop]: Abstraction has 28543 states and 52357 transitions. [2023-12-19 22:51:11,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-19 22:51:11,596 INFO L276 IsEmpty]: Start isEmpty. Operand 28543 states and 52357 transitions. [2023-12-19 22:51:11,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-19 22:51:11,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:51:11,598 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] [2023-12-19 22:51:11,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-19 22:51:11,598 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:51:11,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:51:11,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1068009528, now seen corresponding path program 1 times [2023-12-19 22:51:11,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:51:11,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458235189] [2023-12-19 22:51:11,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:51:11,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:51:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:11,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:51:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:11,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:51:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:11,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:51:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:11,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:51:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:11,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:51:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:11,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-19 22:51:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:12,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:51:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:12,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 22:51:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:12,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:51:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:12,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:51:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:12,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 22:51:12,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:12,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 22:51:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:12,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 22:51:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:12,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:51:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:12,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 22:51:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:12,138 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-19 22:51:12,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:51:12,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458235189] [2023-12-19 22:51:12,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458235189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:51:12,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:51:12,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:51:12,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173539404] [2023-12-19 22:51:12,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:51:12,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:51:12,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:51:12,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:51:12,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:51:12,139 INFO L87 Difference]: Start difference. First operand 28543 states and 52357 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 22:51:22,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:51:22,817 INFO L93 Difference]: Finished difference Result 59474 states and 113711 transitions. [2023-12-19 22:51:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:51:22,818 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 105 [2023-12-19 22:51:22,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:51:22,991 INFO L225 Difference]: With dead ends: 59474 [2023-12-19 22:51:22,992 INFO L226 Difference]: Without dead ends: 30976 [2023-12-19 22:51:23,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:51:23,114 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 1471 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 2920 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1605 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 3341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 2920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-19 22:51:23,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1605 Valid, 1467 Invalid, 3341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 2920 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-19 22:51:23,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30976 states. [2023-12-19 22:51:28,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30976 to 28623. [2023-12-19 22:51:28,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28623 states, 19796 states have (on average 1.5472317639927258) internal successors, (30629), 21311 states have internal predecessors, (30629), 7039 states have call successors, (7039), 1316 states have call predecessors, (7039), 1787 states have return successors, (14737), 7375 states have call predecessors, (14737), 7021 states have call successors, (14737) [2023-12-19 22:51:29,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28623 states to 28623 states and 52405 transitions. [2023-12-19 22:51:29,196 INFO L78 Accepts]: Start accepts. Automaton has 28623 states and 52405 transitions. Word has length 105 [2023-12-19 22:51:29,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:51:29,196 INFO L495 AbstractCegarLoop]: Abstraction has 28623 states and 52405 transitions. [2023-12-19 22:51:29,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 22:51:29,196 INFO L276 IsEmpty]: Start isEmpty. Operand 28623 states and 52405 transitions. [2023-12-19 22:51:29,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-19 22:51:29,198 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:51:29,199 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 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] [2023-12-19 22:51:29,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-19 22:51:29,199 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:51:29,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:51:29,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1862263922, now seen corresponding path program 1 times [2023-12-19 22:51:29,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:51:29,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479407200] [2023-12-19 22:51:29,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:51:29,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:51:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:29,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:51:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:29,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:51:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:29,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:51:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:29,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:51:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:29,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:51:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:29,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-19 22:51:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:29,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:51:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:29,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 22:51:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:29,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:51:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:29,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:51:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:29,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 22:51:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:29,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 22:51:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:29,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 22:51:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:29,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:51:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:29,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 22:51:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:29,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-19 22:51:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:51:29,632 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-19 22:51:29,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:51:29,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479407200] [2023-12-19 22:51:29,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479407200] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:51:29,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:51:29,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 22:51:29,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112516006] [2023-12-19 22:51:29,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:51:29,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 22:51:29,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:51:29,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 22:51:29,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:51:29,634 INFO L87 Difference]: Start difference. First operand 28623 states and 52405 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-19 22:51:51,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:51:51,149 INFO L93 Difference]: Finished difference Result 90769 states and 183150 transitions. [2023-12-19 22:51:51,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 22:51:51,154 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 114 [2023-12-19 22:51:51,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:51:51,663 INFO L225 Difference]: With dead ends: 90769 [2023-12-19 22:51:51,663 INFO L226 Difference]: Without dead ends: 62191 [2023-12-19 22:51:52,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-12-19 22:51:52,027 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 3648 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 5257 mSolverCounterSat, 1189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3810 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 6446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1189 IncrementalHoareTripleChecker+Valid, 5257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-12-19 22:51:52,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3810 Valid, 2425 Invalid, 6446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1189 Valid, 5257 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-12-19 22:51:52,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62191 states. [2023-12-19 22:52:04,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62191 to 57099. [2023-12-19 22:52:04,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57099 states, 39488 states have (on average 1.5443932333873582) internal successors, (60985), 42507 states have internal predecessors, (60985), 14031 states have call successors, (14031), 2620 states have call predecessors, (14031), 3579 states have return successors, (36001), 14731 states have call predecessors, (36001), 13997 states have call successors, (36001) [2023-12-19 22:52:04,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57099 states to 57099 states and 111017 transitions. [2023-12-19 22:52:04,710 INFO L78 Accepts]: Start accepts. Automaton has 57099 states and 111017 transitions. Word has length 114 [2023-12-19 22:52:04,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:52:04,710 INFO L495 AbstractCegarLoop]: Abstraction has 57099 states and 111017 transitions. [2023-12-19 22:52:04,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-19 22:52:04,710 INFO L276 IsEmpty]: Start isEmpty. Operand 57099 states and 111017 transitions. [2023-12-19 22:52:04,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-19 22:52:04,738 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:52:04,738 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 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] [2023-12-19 22:52:04,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-19 22:52:04,739 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:52:04,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:52:04,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1464938544, now seen corresponding path program 1 times [2023-12-19 22:52:04,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:52:04,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178731565] [2023-12-19 22:52:04,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:52:04,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:52:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:04,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:52:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:04,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:52:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:04,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:52:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:04,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:52:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:04,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:52:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:04,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-19 22:52:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:05,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:52:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:05,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 22:52:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:05,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:52:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:05,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:52:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:05,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 22:52:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:05,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 22:52:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:05,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 22:52:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:05,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:52:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:05,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 22:52:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:05,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-19 22:52:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:05,119 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-19 22:52:05,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:52:05,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178731565] [2023-12-19 22:52:05,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178731565] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:52:05,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:52:05,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:52:05,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275000741] [2023-12-19 22:52:05,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:52:05,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:52:05,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:52:05,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:52:05,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:52:05,120 INFO L87 Difference]: Start difference. First operand 57099 states and 111017 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 22:52:23,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:52:23,789 INFO L93 Difference]: Finished difference Result 118930 states and 247923 transitions. [2023-12-19 22:52:23,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:52:23,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 115 [2023-12-19 22:52:23,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:52:24,374 INFO L225 Difference]: With dead ends: 118930 [2023-12-19 22:52:24,374 INFO L226 Difference]: Without dead ends: 61876 [2023-12-19 22:52:24,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:52:24,709 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 1478 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 2954 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 3374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 2954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-19 22:52:24,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 1506 Invalid, 3374 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [420 Valid, 2954 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-19 22:52:24,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61876 states. [2023-12-19 22:52:37,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61876 to 57259. [2023-12-19 22:52:37,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57259 states, 39632 states have (on average 1.5428189341945902) internal successors, (61145), 42651 states have internal predecessors, (61145), 14031 states have call successors, (14031), 2652 states have call predecessors, (14031), 3595 states have return successors, (35961), 14715 states have call predecessors, (35961), 13997 states have call successors, (35961) [2023-12-19 22:52:37,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57259 states to 57259 states and 111137 transitions. [2023-12-19 22:52:37,683 INFO L78 Accepts]: Start accepts. Automaton has 57259 states and 111137 transitions. Word has length 115 [2023-12-19 22:52:37,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:52:37,684 INFO L495 AbstractCegarLoop]: Abstraction has 57259 states and 111137 transitions. [2023-12-19 22:52:37,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 22:52:37,685 INFO L276 IsEmpty]: Start isEmpty. Operand 57259 states and 111137 transitions. [2023-12-19 22:52:37,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-19 22:52:37,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:52:37,702 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 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] [2023-12-19 22:52:37,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-19 22:52:37,703 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:52:37,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:52:37,703 INFO L85 PathProgramCache]: Analyzing trace with hash 2136986962, now seen corresponding path program 1 times [2023-12-19 22:52:37,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:52:37,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172816235] [2023-12-19 22:52:37,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:52:37,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:52:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:37,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:52:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:37,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:52:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:37,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:52:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:37,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:52:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:37,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:52:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:37,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-19 22:52:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:38,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:52:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:38,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 22:52:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:38,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:52:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:38,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:52:38,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:38,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 22:52:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:38,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 22:52:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:38,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 22:52:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:38,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:52:38,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:38,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 22:52:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:38,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:52:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:38,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 22:52:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:52:38,166 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-19 22:52:38,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:52:38,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172816235] [2023-12-19 22:52:38,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172816235] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:52:38,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:52:38,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 22:52:38,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132499433] [2023-12-19 22:52:38,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:52:38,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 22:52:38,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:52:38,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 22:52:38,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:52:38,167 INFO L87 Difference]: Start difference. First operand 57259 states and 111137 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-19 22:53:17,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:53:17,453 INFO L93 Difference]: Finished difference Result 181741 states and 412410 transitions. [2023-12-19 22:53:17,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 22:53:17,454 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 125 [2023-12-19 22:53:17,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:53:19,151 INFO L225 Difference]: With dead ends: 181741 [2023-12-19 22:53:19,152 INFO L226 Difference]: Without dead ends: 124527 [2023-12-19 22:53:19,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-12-19 22:53:19,730 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 3660 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 5241 mSolverCounterSat, 1210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3825 SdHoareTripleChecker+Valid, 2260 SdHoareTripleChecker+Invalid, 6451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1210 IncrementalHoareTripleChecker+Valid, 5241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-12-19 22:53:19,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3825 Valid, 2260 Invalid, 6451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1210 Valid, 5241 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-12-19 22:53:19,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124527 states.