/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_spec2_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 22:33:51,173 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 22:33:51,239 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 22:33:51,242 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 22:33:51,243 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 22:33:51,264 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 22:33:51,265 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 22:33:51,265 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 22:33:51,265 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 22:33:51,268 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 22:33:51,268 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 22:33:51,269 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 22:33:51,269 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 22:33:51,270 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 22:33:51,270 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 22:33:51,271 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 22:33:51,271 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 22:33:51,271 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 22:33:51,271 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 22:33:51,271 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 22:33:51,271 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 22:33:51,272 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 22:33:51,272 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 22:33:51,272 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 22:33:51,272 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 22:33:51,272 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 22:33:51,272 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 22:33:51,273 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 22:33:51,273 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 22:33:51,273 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 22:33:51,274 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 22:33:51,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 22:33:51,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 22:33:51,274 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 22:33:51,274 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 22:33:51,275 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 22:33:51,275 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 22:33:51,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 22:33:51,275 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 22:33:51,275 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 22:33:51,275 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 22:33:51,275 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 22:33:51,276 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 22:33:51,276 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 22:33:51,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 22:33:51,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 22:33:51,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 22:33:51,484 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 22:33:51,485 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 22:33:51,485 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product28.cil.c [2023-12-19 22:33:52,620 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 22:33:52,839 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 22:33:52,840 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product28.cil.c [2023-12-19 22:33:52,853 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2612d874/2badd54f2356406bb73f3bb266858b82/FLAG711a43033 [2023-12-19 22:33:52,863 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2612d874/2badd54f2356406bb73f3bb266858b82 [2023-12-19 22:33:52,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 22:33:52,867 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 22:33:52,868 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 22:33:52,868 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 22:33:52,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 22:33:52,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:33:52" (1/1) ... [2023-12-19 22:33:52,872 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff72e4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:33:52, skipping insertion in model container [2023-12-19 22:33:52,873 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:33:52" (1/1) ... [2023-12-19 22:33:52,937 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 22:33:53,189 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product28.cil.c[35981,35994] [2023-12-19 22:33:53,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 22:33:53,325 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 22:33:53,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [48] [2023-12-19 22:33:53,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1664] [2023-12-19 22:33:53,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1702] [2023-12-19 22:33:53,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1711] [2023-12-19 22:33:53,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2373] [2023-12-19 22:33:53,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2387] [2023-12-19 22:33:53,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2506] [2023-12-19 22:33:53,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2859] [2023-12-19 22:33:53,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3225] [2023-12-19 22:33:53,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [3316] [2023-12-19 22:33:53,366 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product28.cil.c[35981,35994] [2023-12-19 22:33:53,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 22:33:53,454 INFO L206 MainTranslator]: Completed translation [2023-12-19 22:33:53,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:33:53 WrapperNode [2023-12-19 22:33:53,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 22:33:53,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 22:33:53,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 22:33:53,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 22:33:53,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:33:53" (1/1) ... [2023-12-19 22:33:53,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:33:53" (1/1) ... [2023-12-19 22:33:53,521 INFO L138 Inliner]: procedures = 97, calls = 348, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 1177 [2023-12-19 22:33:53,521 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 22:33:53,522 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 22:33:53,522 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 22:33:53,522 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 22:33:53,529 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:33:53" (1/1) ... [2023-12-19 22:33:53,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:33:53" (1/1) ... [2023-12-19 22:33:53,534 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:33:53" (1/1) ... [2023-12-19 22:33:53,580 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-19 22:33:53,581 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:33:53" (1/1) ... [2023-12-19 22:33:53,581 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:33:53" (1/1) ... [2023-12-19 22:33:53,593 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:33:53" (1/1) ... [2023-12-19 22:33:53,601 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:33:53" (1/1) ... [2023-12-19 22:33:53,604 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:33:53" (1/1) ... [2023-12-19 22:33:53,607 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:33:53" (1/1) ... [2023-12-19 22:33:53,630 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 22:33:53,631 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 22:33:53,631 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 22:33:53,631 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 22:33:53,631 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:33:53" (1/1) ... [2023-12-19 22:33:53,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 22:33:53,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:33:53,677 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 22:33:53,679 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 22:33:53,710 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-19 22:33:53,710 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-19 22:33:53,710 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-19 22:33:53,711 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-19 22:33:53,711 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-19 22:33:53,711 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-19 22:33:53,711 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-19 22:33:53,711 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-19 22:33:53,711 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-19 22:33:53,711 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-19 22:33:53,711 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-19 22:33:53,711 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-19 22:33:53,711 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-19 22:33:53,711 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-19 22:33:53,711 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-19 22:33:53,711 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-19 22:33:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-19 22:33:53,712 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-19 22:33:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 22:33:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-19 22:33:53,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-19 22:33:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-19 22:33:53,712 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-19 22:33:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-19 22:33:53,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-19 22:33:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-19 22:33:53,712 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-19 22:33:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-19 22:33:53,713 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-19 22:33:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-19 22:33:53,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-19 22:33:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-19 22:33:53,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-19 22:33:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-19 22:33:53,713 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-19 22:33:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-19 22:33:53,713 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-19 22:33:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-19 22:33:53,713 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-19 22:33:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-19 22:33:53,713 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-19 22:33:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-19 22:33:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-19 22:33:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-19 22:33:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-19 22:33:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 22:33:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 22:33:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-19 22:33:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-19 22:33:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-19 22:33:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-19 22:33:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-19 22:33:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-19 22:33:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-19 22:33:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-19 22:33:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-19 22:33:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-19 22:33:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-19 22:33:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-19 22:33:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-19 22:33:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-19 22:33:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-19 22:33:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-19 22:33:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-19 22:33:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-19 22:33:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-19 22:33:53,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-19 22:33:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 22:33:53,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 22:33:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-19 22:33:53,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-19 22:33:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2023-12-19 22:33:53,716 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2023-12-19 22:33:53,861 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 22:33:53,863 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 22:33:54,558 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 22:33:54,610 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 22:33:54,610 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 22:33:54,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:33:54 BoogieIcfgContainer [2023-12-19 22:33:54,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 22:33:54,612 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 22:33:54,612 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 22:33:54,615 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 22:33:54,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 10:33:52" (1/3) ... [2023-12-19 22:33:54,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53efc52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:33:54, skipping insertion in model container [2023-12-19 22:33:54,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:33:53" (2/3) ... [2023-12-19 22:33:54,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53efc52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:33:54, skipping insertion in model container [2023-12-19 22:33:54,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:33:54" (3/3) ... [2023-12-19 22:33:54,616 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product28.cil.c [2023-12-19 22:33:54,628 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 22:33:54,628 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 22:33:54,675 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 22:33:54,680 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;@149bcc38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 22:33:54,681 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 22:33:54,688 INFO L276 IsEmpty]: Start isEmpty. Operand has 556 states, 430 states have (on average 1.7232558139534884) internal successors, (741), 453 states have internal predecessors, (741), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 92 states have call predecessors, (99), 99 states have call successors, (99) [2023-12-19 22:33:54,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-19 22:33:54,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:33:54,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:33:54,707 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:33:54,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:33:54,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1411052936, now seen corresponding path program 1 times [2023-12-19 22:33:54,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:33:54,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938739107] [2023-12-19 22:33:54,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:33:54,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:33:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:33:55,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:33:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:33:55,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:33:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:33:55,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:33:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:33:55,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 22:33:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:33:55,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:33:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:33:55,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:33:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:33:55,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:33:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:33:55,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 22:33:55,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:33:55,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938739107] [2023-12-19 22:33:55,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938739107] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:33:55,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:33:55,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:33:55,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623869299] [2023-12-19 22:33:55,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:33:55,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:33:55,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:33:55,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:33:55,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:33:55,807 INFO L87 Difference]: Start difference. First operand has 556 states, 430 states have (on average 1.7232558139534884) internal successors, (741), 453 states have internal predecessors, (741), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 92 states have call predecessors, (99), 99 states have call successors, (99) Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:00,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:34:00,141 INFO L93 Difference]: Finished difference Result 1257 states and 2149 transitions. [2023-12-19 22:34:00,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:34:00,153 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2023-12-19 22:34:00,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:34:00,183 INFO L225 Difference]: With dead ends: 1257 [2023-12-19 22:34:00,183 INFO L226 Difference]: Without dead ends: 710 [2023-12-19 22:34:00,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:34:00,193 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 699 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 2808 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 2932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 2808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-19 22:34:00,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 1086 Invalid, 2932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 2808 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-19 22:34:00,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2023-12-19 22:34:00,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 552. [2023-12-19 22:34:00,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 428 states have (on average 1.7126168224299065) internal successors, (733), 449 states have internal predecessors, (733), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-19 22:34:00,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 926 transitions. [2023-12-19 22:34:00,342 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 926 transitions. Word has length 50 [2023-12-19 22:34:00,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:34:00,343 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 926 transitions. [2023-12-19 22:34:00,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:00,343 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 926 transitions. [2023-12-19 22:34:00,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-19 22:34:00,345 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:34:00,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:34:00,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 22:34:00,346 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:34:00,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:34:00,346 INFO L85 PathProgramCache]: Analyzing trace with hash 920878566, now seen corresponding path program 1 times [2023-12-19 22:34:00,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:34:00,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123622740] [2023-12-19 22:34:00,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:34:00,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:34:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:00,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:34:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:00,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:00,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:34:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:00,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 22:34:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:00,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:00,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:00,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:34:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:00,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 22:34:00,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:34:00,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123622740] [2023-12-19 22:34:00,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123622740] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:34:00,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:34:00,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:34:00,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161722709] [2023-12-19 22:34:00,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:34:00,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:34:00,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:34:00,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:34:00,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:34:00,864 INFO L87 Difference]: Start difference. First operand 552 states and 926 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:04,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:34:04,871 INFO L93 Difference]: Finished difference Result 1250 states and 2122 transitions. [2023-12-19 22:34:04,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:34:04,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 52 [2023-12-19 22:34:04,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:34:04,876 INFO L225 Difference]: With dead ends: 1250 [2023-12-19 22:34:04,876 INFO L226 Difference]: Without dead ends: 710 [2023-12-19 22:34:04,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:34:04,879 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 697 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 2782 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 2908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 2782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-19 22:34:04,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 1065 Invalid, 2908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 2782 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-19 22:34:04,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2023-12-19 22:34:04,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 552. [2023-12-19 22:34:04,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 428 states have (on average 1.7102803738317758) internal successors, (732), 449 states have internal predecessors, (732), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-19 22:34:04,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 925 transitions. [2023-12-19 22:34:04,933 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 925 transitions. Word has length 52 [2023-12-19 22:34:04,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:34:04,933 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 925 transitions. [2023-12-19 22:34:04,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:04,933 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 925 transitions. [2023-12-19 22:34:04,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-19 22:34:04,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:34:04,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:34:04,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 22:34:04,935 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:34:04,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:34:04,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1548364352, now seen corresponding path program 1 times [2023-12-19 22:34:04,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:34:04,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614125757] [2023-12-19 22:34:04,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:34:04,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:34:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:05,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:34:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:05,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:05,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:34:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:05,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-19 22:34:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:05,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:05,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:05,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:34:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:05,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 22:34:05,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:34:05,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614125757] [2023-12-19 22:34:05,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614125757] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:34:05,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:34:05,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:34:05,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133235272] [2023-12-19 22:34:05,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:34:05,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:34:05,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:34:05,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:34:05,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:34:05,523 INFO L87 Difference]: Start difference. First operand 552 states and 925 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:09,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:34:09,182 INFO L93 Difference]: Finished difference Result 1250 states and 2121 transitions. [2023-12-19 22:34:09,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:34:09,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2023-12-19 22:34:09,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:34:09,186 INFO L225 Difference]: With dead ends: 1250 [2023-12-19 22:34:09,187 INFO L226 Difference]: Without dead ends: 710 [2023-12-19 22:34:09,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:34:09,189 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 1137 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 2629 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 2904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 2629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:34:09,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 1063 Invalid, 2904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 2629 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-19 22:34:09,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2023-12-19 22:34:09,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 552. [2023-12-19 22:34:09,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 428 states have (on average 1.7079439252336448) internal successors, (731), 449 states have internal predecessors, (731), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-19 22:34:09,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 924 transitions. [2023-12-19 22:34:09,240 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 924 transitions. Word has length 53 [2023-12-19 22:34:09,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:34:09,241 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 924 transitions. [2023-12-19 22:34:09,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:09,241 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 924 transitions. [2023-12-19 22:34:09,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-19 22:34:09,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:34:09,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:34:09,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 22:34:09,242 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:34:09,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:34:09,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1001489194, now seen corresponding path program 1 times [2023-12-19 22:34:09,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:34:09,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629318703] [2023-12-19 22:34:09,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:34:09,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:34:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:09,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:34:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:09,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:09,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 22:34:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:09,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-19 22:34:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:09,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:09,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:09,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:34:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:09,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 22:34:09,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:34:09,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629318703] [2023-12-19 22:34:09,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629318703] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:34:09,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:34:09,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:34:09,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621820687] [2023-12-19 22:34:09,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:34:09,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:34:09,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:34:09,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:34:09,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:34:09,741 INFO L87 Difference]: Start difference. First operand 552 states and 924 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:13,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:34:13,248 INFO L93 Difference]: Finished difference Result 1250 states and 2120 transitions. [2023-12-19 22:34:13,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:34:13,249 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 54 [2023-12-19 22:34:13,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:34:13,252 INFO L225 Difference]: With dead ends: 1250 [2023-12-19 22:34:13,253 INFO L226 Difference]: Without dead ends: 710 [2023-12-19 22:34:13,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:34:13,255 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 1134 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 2630 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 2904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 2630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:34:13,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 1060 Invalid, 2904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 2630 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-19 22:34:13,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2023-12-19 22:34:13,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 552. [2023-12-19 22:34:13,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 428 states have (on average 1.705607476635514) internal successors, (730), 449 states have internal predecessors, (730), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-19 22:34:13,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 923 transitions. [2023-12-19 22:34:13,311 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 923 transitions. Word has length 54 [2023-12-19 22:34:13,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:34:13,311 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 923 transitions. [2023-12-19 22:34:13,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:13,311 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 923 transitions. [2023-12-19 22:34:13,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-19 22:34:13,312 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:34:13,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:34:13,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 22:34:13,313 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:34:13,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:34:13,313 INFO L85 PathProgramCache]: Analyzing trace with hash 229543172, now seen corresponding path program 1 times [2023-12-19 22:34:13,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:34:13,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485702904] [2023-12-19 22:34:13,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:34:13,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:34:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:13,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:34:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:13,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:13,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:13,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 22:34:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:13,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 22:34:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:13,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:13,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:13,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:34:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:13,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 22:34:13,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:34:13,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485702904] [2023-12-19 22:34:13,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485702904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:34:13,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:34:13,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:34:13,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548351006] [2023-12-19 22:34:13,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:34:13,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:34:13,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:34:13,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:34:13,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:34:13,813 INFO L87 Difference]: Start difference. First operand 552 states and 923 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:17,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:34:17,327 INFO L93 Difference]: Finished difference Result 1250 states and 2119 transitions. [2023-12-19 22:34:17,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:34:17,327 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 55 [2023-12-19 22:34:17,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:34:17,331 INFO L225 Difference]: With dead ends: 1250 [2023-12-19 22:34:17,331 INFO L226 Difference]: Without dead ends: 710 [2023-12-19 22:34:17,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:34:17,333 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 688 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 2769 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 2898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 2769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:34:17,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1050 Invalid, 2898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 2769 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-19 22:34:17,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2023-12-19 22:34:17,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 552. [2023-12-19 22:34:17,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 428 states have (on average 1.7032710280373833) internal successors, (729), 449 states have internal predecessors, (729), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-19 22:34:17,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 922 transitions. [2023-12-19 22:34:17,381 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 922 transitions. Word has length 55 [2023-12-19 22:34:17,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:34:17,381 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 922 transitions. [2023-12-19 22:34:17,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:17,381 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 922 transitions. [2023-12-19 22:34:17,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-19 22:34:17,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:34:17,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:34:17,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 22:34:17,382 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:34:17,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:34:17,383 INFO L85 PathProgramCache]: Analyzing trace with hash -438974354, now seen corresponding path program 1 times [2023-12-19 22:34:17,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:34:17,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772771832] [2023-12-19 22:34:17,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:34:17,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:34:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:17,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:34:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:17,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:17,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:34:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:17,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 22:34:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:17,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:17,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:17,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:34:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:17,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 22:34:17,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:34:17,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772771832] [2023-12-19 22:34:17,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772771832] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:34:17,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:34:17,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:34:17,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939184003] [2023-12-19 22:34:17,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:34:17,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:34:17,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:34:17,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:34:17,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:34:17,919 INFO L87 Difference]: Start difference. First operand 552 states and 922 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 22:34:22,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:34:22,701 INFO L93 Difference]: Finished difference Result 1226 states and 2068 transitions. [2023-12-19 22:34:22,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 22:34:22,701 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 56 [2023-12-19 22:34:22,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:34:22,705 INFO L225 Difference]: With dead ends: 1226 [2023-12-19 22:34:22,705 INFO L226 Difference]: Without dead ends: 734 [2023-12-19 22:34:22,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-19 22:34:22,707 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 796 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 5070 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 1938 SdHoareTripleChecker+Invalid, 5196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 5070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-19 22:34:22,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 1938 Invalid, 5196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 5070 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-19 22:34:22,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-12-19 22:34:22,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 564. [2023-12-19 22:34:22,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 437 states have (on average 1.700228832951945) internal successors, (743), 460 states have internal predecessors, (743), 100 states have call successors, (100), 25 states have call predecessors, (100), 26 states have return successors, (97), 92 states have call predecessors, (97), 95 states have call successors, (97) [2023-12-19 22:34:22,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 940 transitions. [2023-12-19 22:34:22,760 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 940 transitions. Word has length 56 [2023-12-19 22:34:22,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:34:22,760 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 940 transitions. [2023-12-19 22:34:22,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 22:34:22,761 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 940 transitions. [2023-12-19 22:34:22,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-19 22:34:22,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:34:22,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:34:22,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 22:34:22,762 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:34:22,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:34:22,762 INFO L85 PathProgramCache]: Analyzing trace with hash -2139714833, now seen corresponding path program 1 times [2023-12-19 22:34:22,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:34:22,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340321198] [2023-12-19 22:34:22,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:34:22,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:34:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:22,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:34:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:22,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:22,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:34:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:23,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 22:34:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:23,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:23,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:23,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:34:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:23,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 22:34:23,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:34:23,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340321198] [2023-12-19 22:34:23,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340321198] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:34:23,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:34:23,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:34:23,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059532255] [2023-12-19 22:34:23,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:34:23,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:34:23,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:34:23,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:34:23,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:34:23,217 INFO L87 Difference]: Start difference. First operand 564 states and 940 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:26,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:34:26,452 INFO L93 Difference]: Finished difference Result 1238 states and 2089 transitions. [2023-12-19 22:34:26,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:34:26,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 56 [2023-12-19 22:34:26,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:34:26,457 INFO L225 Difference]: With dead ends: 1238 [2023-12-19 22:34:26,457 INFO L226 Difference]: Without dead ends: 730 [2023-12-19 22:34:26,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:34:26,460 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1218 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 2558 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 2558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-19 22:34:26,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1303 Valid, 1063 Invalid, 2829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 2558 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-19 22:34:26,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-19 22:34:26,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 564. [2023-12-19 22:34:26,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 437 states have (on average 1.688787185354691) internal successors, (738), 460 states have internal predecessors, (738), 100 states have call successors, (100), 25 states have call predecessors, (100), 26 states have return successors, (97), 92 states have call predecessors, (97), 95 states have call successors, (97) [2023-12-19 22:34:26,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 935 transitions. [2023-12-19 22:34:26,541 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 935 transitions. Word has length 56 [2023-12-19 22:34:26,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:34:26,541 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 935 transitions. [2023-12-19 22:34:26,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:26,542 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 935 transitions. [2023-12-19 22:34:26,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-19 22:34:26,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:34:26,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:34:26,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 22:34:26,543 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:34:26,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:34:26,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1911751109, now seen corresponding path program 1 times [2023-12-19 22:34:26,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:34:26,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716333892] [2023-12-19 22:34:26,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:34:26,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:34:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:26,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:34:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:26,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:26,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:34:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:26,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 22:34:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:27,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:27,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:27,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:34:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:27,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 22:34:27,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:34:27,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716333892] [2023-12-19 22:34:27,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716333892] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:34:27,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:34:27,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:34:27,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751204915] [2023-12-19 22:34:27,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:34:27,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:34:27,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:34:27,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:34:27,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:34:27,012 INFO L87 Difference]: Start difference. First operand 564 states and 935 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:30,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:34:30,334 INFO L93 Difference]: Finished difference Result 1238 states and 2084 transitions. [2023-12-19 22:34:30,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:34:30,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2023-12-19 22:34:30,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:34:30,338 INFO L225 Difference]: With dead ends: 1238 [2023-12-19 22:34:30,338 INFO L226 Difference]: Without dead ends: 730 [2023-12-19 22:34:30,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:34:30,340 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 1214 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 2533 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 2808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 2533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:34:30,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1299 Valid, 1057 Invalid, 2808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 2533 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-19 22:34:30,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-19 22:34:30,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 564. [2023-12-19 22:34:30,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 437 states have (on average 1.677345537757437) internal successors, (733), 460 states have internal predecessors, (733), 100 states have call successors, (100), 25 states have call predecessors, (100), 26 states have return successors, (97), 92 states have call predecessors, (97), 95 states have call successors, (97) [2023-12-19 22:34:30,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 930 transitions. [2023-12-19 22:34:30,393 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 930 transitions. Word has length 57 [2023-12-19 22:34:30,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:34:30,393 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 930 transitions. [2023-12-19 22:34:30,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:30,393 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 930 transitions. [2023-12-19 22:34:30,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-19 22:34:30,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:34:30,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:34:30,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 22:34:30,394 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:34:30,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:34:30,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1767738166, now seen corresponding path program 1 times [2023-12-19 22:34:30,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:34:30,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274733703] [2023-12-19 22:34:30,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:34:30,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:34:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:30,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:34:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:30,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:30,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:34:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:30,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-19 22:34:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:30,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:30,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:30,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:34:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:30,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 22:34:30,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:34:30,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274733703] [2023-12-19 22:34:30,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274733703] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:34:30,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:34:30,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:34:30,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491294817] [2023-12-19 22:34:30,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:34:30,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:34:30,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:34:30,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:34:30,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:34:30,870 INFO L87 Difference]: Start difference. First operand 564 states and 930 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:34,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:34:34,176 INFO L93 Difference]: Finished difference Result 1238 states and 2079 transitions. [2023-12-19 22:34:34,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:34:34,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-19 22:34:34,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:34:34,180 INFO L225 Difference]: With dead ends: 1238 [2023-12-19 22:34:34,180 INFO L226 Difference]: Without dead ends: 730 [2023-12-19 22:34:34,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:34:34,183 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 769 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 2662 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 2792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 2662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:34:34,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 1059 Invalid, 2792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 2662 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-19 22:34:34,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-19 22:34:34,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 564. [2023-12-19 22:34:34,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 437 states have (on average 1.665903890160183) internal successors, (728), 460 states have internal predecessors, (728), 100 states have call successors, (100), 25 states have call predecessors, (100), 26 states have return successors, (97), 92 states have call predecessors, (97), 95 states have call successors, (97) [2023-12-19 22:34:34,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 925 transitions. [2023-12-19 22:34:34,237 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 925 transitions. Word has length 58 [2023-12-19 22:34:34,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:34:34,238 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 925 transitions. [2023-12-19 22:34:34,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:34,238 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 925 transitions. [2023-12-19 22:34:34,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-19 22:34:34,239 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:34:34,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:34:34,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 22:34:34,239 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:34:34,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:34:34,239 INFO L85 PathProgramCache]: Analyzing trace with hash -2052078496, now seen corresponding path program 1 times [2023-12-19 22:34:34,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:34:34,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335054478] [2023-12-19 22:34:34,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:34:34,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:34:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:34,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:34:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:34,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:34,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:34:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:34,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 22:34:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:34,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:34,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:34,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:34:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:34,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 22:34:34,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:34:34,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335054478] [2023-12-19 22:34:34,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335054478] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:34:34,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:34:34,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:34:34,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010463850] [2023-12-19 22:34:34,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:34:34,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:34:34,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:34:34,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:34:34,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:34:34,809 INFO L87 Difference]: Start difference. First operand 564 states and 925 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 22:34:40,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:34:40,203 INFO L93 Difference]: Finished difference Result 1229 states and 2055 transitions. [2023-12-19 22:34:40,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 22:34:40,203 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 59 [2023-12-19 22:34:40,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:34:40,206 INFO L225 Difference]: With dead ends: 1229 [2023-12-19 22:34:40,207 INFO L226 Difference]: Without dead ends: 735 [2023-12-19 22:34:40,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-12-19 22:34:40,208 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 759 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 4985 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 5112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 4985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:34:40,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [845 Valid, 1930 Invalid, 5112 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [127 Valid, 4985 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-19 22:34:40,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2023-12-19 22:34:40,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 564. [2023-12-19 22:34:40,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 437 states have (on average 1.6636155606407323) internal successors, (727), 460 states have internal predecessors, (727), 100 states have call successors, (100), 25 states have call predecessors, (100), 26 states have return successors, (97), 92 states have call predecessors, (97), 95 states have call successors, (97) [2023-12-19 22:34:40,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 924 transitions. [2023-12-19 22:34:40,267 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 924 transitions. Word has length 59 [2023-12-19 22:34:40,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:34:40,267 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 924 transitions. [2023-12-19 22:34:40,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 22:34:40,267 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 924 transitions. [2023-12-19 22:34:40,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-19 22:34:40,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:34:40,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:34:40,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 22:34:40,268 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:34:40,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:34:40,269 INFO L85 PathProgramCache]: Analyzing trace with hash -293703296, now seen corresponding path program 1 times [2023-12-19 22:34:40,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:34:40,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703726218] [2023-12-19 22:34:40,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:34:40,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:34:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:40,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:34:40,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:40,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:40,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:34:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:40,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 22:34:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:40,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:40,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:40,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:34:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:40,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 22:34:40,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:34:40,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703726218] [2023-12-19 22:34:40,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703726218] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:34:40,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:34:40,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:34:40,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454701404] [2023-12-19 22:34:40,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:34:40,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:34:40,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:34:40,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:34:40,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:34:40,721 INFO L87 Difference]: Start difference. First operand 564 states and 924 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:43,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:34:43,725 INFO L93 Difference]: Finished difference Result 1238 states and 2071 transitions. [2023-12-19 22:34:43,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:34:43,726 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2023-12-19 22:34:43,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:34:43,729 INFO L225 Difference]: With dead ends: 1238 [2023-12-19 22:34:43,729 INFO L226 Difference]: Without dead ends: 730 [2023-12-19 22:34:43,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:34:43,731 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 1214 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 2507 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 2786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 2507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-19 22:34:43,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1299 Valid, 1032 Invalid, 2786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 2507 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-19 22:34:43,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-19 22:34:43,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 564. [2023-12-19 22:34:43,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 437 states have (on average 1.6521739130434783) internal successors, (722), 460 states have internal predecessors, (722), 100 states have call successors, (100), 25 states have call predecessors, (100), 26 states have return successors, (97), 92 states have call predecessors, (97), 95 states have call successors, (97) [2023-12-19 22:34:43,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 919 transitions. [2023-12-19 22:34:43,802 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 919 transitions. Word has length 59 [2023-12-19 22:34:43,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:34:43,803 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 919 transitions. [2023-12-19 22:34:43,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:43,803 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 919 transitions. [2023-12-19 22:34:43,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-19 22:34:43,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:34:43,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:34:43,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 22:34:43,804 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:34:43,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:34:43,804 INFO L85 PathProgramCache]: Analyzing trace with hash 730915207, now seen corresponding path program 1 times [2023-12-19 22:34:43,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:34:43,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010451573] [2023-12-19 22:34:43,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:34:43,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:34:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:43,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:34:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:44,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:44,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:34:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:44,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 22:34:44,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:44,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:44,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:44,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:34:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:44,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 22:34:44,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:34:44,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010451573] [2023-12-19 22:34:44,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010451573] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:34:44,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:34:44,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:34:44,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277630273] [2023-12-19 22:34:44,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:34:44,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:34:44,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:34:44,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:34:44,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:34:44,294 INFO L87 Difference]: Start difference. First operand 564 states and 919 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 22:34:48,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:34:48,813 INFO L93 Difference]: Finished difference Result 1247 states and 2076 transitions. [2023-12-19 22:34:48,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 22:34:48,814 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 60 [2023-12-19 22:34:48,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:34:48,816 INFO L225 Difference]: With dead ends: 1247 [2023-12-19 22:34:48,816 INFO L226 Difference]: Without dead ends: 751 [2023-12-19 22:34:48,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-12-19 22:34:48,818 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 1212 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 4770 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 1889 SdHoareTripleChecker+Invalid, 5048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 4770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:34:48,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1298 Valid, 1889 Invalid, 5048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 4770 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-19 22:34:48,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2023-12-19 22:34:48,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 567. [2023-12-19 22:34:48,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 440 states have (on average 1.6454545454545455) internal successors, (724), 463 states have internal predecessors, (724), 100 states have call successors, (100), 25 states have call predecessors, (100), 26 states have return successors, (97), 92 states have call predecessors, (97), 95 states have call successors, (97) [2023-12-19 22:34:48,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 921 transitions. [2023-12-19 22:34:48,874 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 921 transitions. Word has length 60 [2023-12-19 22:34:48,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:34:48,874 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 921 transitions. [2023-12-19 22:34:48,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 22:34:48,874 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 921 transitions. [2023-12-19 22:34:48,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-19 22:34:48,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:34:48,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:34:48,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 22:34:48,875 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:34:48,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:34:48,875 INFO L85 PathProgramCache]: Analyzing trace with hash 2025790117, now seen corresponding path program 1 times [2023-12-19 22:34:48,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:34:48,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882591362] [2023-12-19 22:34:48,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:34:48,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:34:48,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:48,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:34:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:49,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:49,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:34:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:49,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 22:34:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:49,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:49,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:49,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:34:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:49,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 22:34:49,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:34:49,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882591362] [2023-12-19 22:34:49,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882591362] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:34:49,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:34:49,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:34:49,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519124513] [2023-12-19 22:34:49,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:34:49,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:34:49,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:34:49,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:34:49,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:34:49,302 INFO L87 Difference]: Start difference. First operand 567 states and 921 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:52,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:34:52,573 INFO L93 Difference]: Finished difference Result 1247 states and 2072 transitions. [2023-12-19 22:34:52,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:34:52,573 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2023-12-19 22:34:52,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:34:52,577 INFO L225 Difference]: With dead ends: 1247 [2023-12-19 22:34:52,577 INFO L226 Difference]: Without dead ends: 736 [2023-12-19 22:34:52,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:34:52,583 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 1209 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 2478 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 2762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 2478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:34:52,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 1027 Invalid, 2762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 2478 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-19 22:34:52,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2023-12-19 22:34:52,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 567. [2023-12-19 22:34:52,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 440 states have (on average 1.634090909090909) internal successors, (719), 463 states have internal predecessors, (719), 100 states have call successors, (100), 25 states have call predecessors, (100), 26 states have return successors, (97), 92 states have call predecessors, (97), 95 states have call successors, (97) [2023-12-19 22:34:52,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 916 transitions. [2023-12-19 22:34:52,661 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 916 transitions. Word has length 60 [2023-12-19 22:34:52,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:34:52,661 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 916 transitions. [2023-12-19 22:34:52,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:34:52,661 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 916 transitions. [2023-12-19 22:34:52,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-19 22:34:52,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:34:52,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:34:52,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 22:34:52,662 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:34:52,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:34:52,662 INFO L85 PathProgramCache]: Analyzing trace with hash -2029026533, now seen corresponding path program 1 times [2023-12-19 22:34:52,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:34:52,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069070971] [2023-12-19 22:34:52,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:34:52,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:34:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:52,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:34:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:52,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:52,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:34:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:53,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-19 22:34:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:53,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:53,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:53,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:34:53,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:53,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 22:34:53,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:34:53,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069070971] [2023-12-19 22:34:53,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069070971] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:34:53,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:34:53,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:34:53,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808379474] [2023-12-19 22:34:53,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:34:53,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:34:53,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:34:53,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:34:53,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:34:53,149 INFO L87 Difference]: Start difference. First operand 567 states and 916 transitions. Second operand has 9 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 22:34:58,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:34:58,248 INFO L93 Difference]: Finished difference Result 1253 states and 2073 transitions. [2023-12-19 22:34:58,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 22:34:58,248 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 61 [2023-12-19 22:34:58,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:34:58,251 INFO L225 Difference]: With dead ends: 1253 [2023-12-19 22:34:58,251 INFO L226 Difference]: Without dead ends: 757 [2023-12-19 22:34:58,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-12-19 22:34:58,253 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 1205 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 4718 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1291 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 5004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 4718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-19 22:34:58,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1291 Valid, 1860 Invalid, 5004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 4718 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-19 22:34:58,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2023-12-19 22:34:58,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 571. [2023-12-19 22:34:58,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 444 states have (on average 1.6261261261261262) internal successors, (722), 467 states have internal predecessors, (722), 100 states have call successors, (100), 25 states have call predecessors, (100), 26 states have return successors, (97), 92 states have call predecessors, (97), 95 states have call successors, (97) [2023-12-19 22:34:58,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 919 transitions. [2023-12-19 22:34:58,311 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 919 transitions. Word has length 61 [2023-12-19 22:34:58,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:34:58,311 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 919 transitions. [2023-12-19 22:34:58,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 22:34:58,311 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 919 transitions. [2023-12-19 22:34:58,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-19 22:34:58,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:34:58,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:34:58,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 22:34:58,314 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:34:58,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:34:58,315 INFO L85 PathProgramCache]: Analyzing trace with hash 489727291, now seen corresponding path program 1 times [2023-12-19 22:34:58,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:34:58,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945238012] [2023-12-19 22:34:58,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:34:58,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:34:58,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:58,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:34:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:58,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:58,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:34:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:58,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-19 22:34:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:58,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:58,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:34:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:58,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:34:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:34:58,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 22:34:58,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:34:58,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945238012] [2023-12-19 22:34:58,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945238012] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:34:58,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:34:58,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:34:58,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326884314] [2023-12-19 22:34:58,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:34:58,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:34:58,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:34:58,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:34:58,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:34:58,741 INFO L87 Difference]: Start difference. First operand 571 states and 919 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:35:02,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:35:02,303 INFO L93 Difference]: Finished difference Result 1295 states and 2117 transitions. [2023-12-19 22:35:02,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:35:02,304 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2023-12-19 22:35:02,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:35:02,306 INFO L225 Difference]: With dead ends: 1295 [2023-12-19 22:35:02,306 INFO L226 Difference]: Without dead ends: 718 [2023-12-19 22:35:02,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:35:02,308 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 682 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 2660 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 2784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 2660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:35:02,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 1047 Invalid, 2784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 2660 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-19 22:35:02,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2023-12-19 22:35:02,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 553. [2023-12-19 22:35:02,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 429 states have (on average 1.634032634032634) internal successors, (701), 450 states have internal predecessors, (701), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-19 22:35:02,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 894 transitions. [2023-12-19 22:35:02,362 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 894 transitions. Word has length 61 [2023-12-19 22:35:02,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:35:02,362 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 894 transitions. [2023-12-19 22:35:02,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-19 22:35:02,362 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 894 transitions. [2023-12-19 22:35:02,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-19 22:35:02,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:35:02,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:35:02,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 22:35:02,363 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:35:02,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:35:02,363 INFO L85 PathProgramCache]: Analyzing trace with hash -526307870, now seen corresponding path program 1 times [2023-12-19 22:35:02,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:35:02,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360821175] [2023-12-19 22:35:02,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:35:02,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:35:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:02,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:35:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:02,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:02,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:35:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:02,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 22:35:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:02,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:02,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:02,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:35:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:02,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 22:35:02,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:35:02,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360821175] [2023-12-19 22:35:02,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360821175] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:35:02,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:35:02,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:35:02,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766287011] [2023-12-19 22:35:02,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:35:02,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:35:02,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:35:02,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:35:02,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:35:02,834 INFO L87 Difference]: Start difference. First operand 553 states and 894 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 22:35:07,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:35:07,080 INFO L93 Difference]: Finished difference Result 1229 states and 2031 transitions. [2023-12-19 22:35:07,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 22:35:07,081 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2023-12-19 22:35:07,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:35:07,084 INFO L225 Difference]: With dead ends: 1229 [2023-12-19 22:35:07,084 INFO L226 Difference]: Without dead ends: 735 [2023-12-19 22:35:07,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-12-19 22:35:07,086 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 728 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 4775 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 1835 SdHoareTripleChecker+Invalid, 4908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 4775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:35:07,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 1835 Invalid, 4908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 4775 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-19 22:35:07,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2023-12-19 22:35:07,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 558. [2023-12-19 22:35:07,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 434 states have (on average 1.6267281105990783) internal successors, (706), 455 states have internal predecessors, (706), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-19 22:35:07,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 899 transitions. [2023-12-19 22:35:07,140 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 899 transitions. Word has length 62 [2023-12-19 22:35:07,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:35:07,140 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 899 transitions. [2023-12-19 22:35:07,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 22:35:07,140 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 899 transitions. [2023-12-19 22:35:07,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-19 22:35:07,141 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:35:07,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:35:07,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 22:35:07,141 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:35:07,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:35:07,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1633963462, now seen corresponding path program 1 times [2023-12-19 22:35:07,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:35:07,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683904306] [2023-12-19 22:35:07,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:35:07,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:35:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:07,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:35:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:07,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:07,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:35:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:07,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:35:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:07,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:07,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:07,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:35:07,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:07,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 22:35:07,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:35:07,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683904306] [2023-12-19 22:35:07,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683904306] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:35:07,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:35:07,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 22:35:07,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130485044] [2023-12-19 22:35:07,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:35:07,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 22:35:07,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:35:07,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 22:35:07,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-19 22:35:07,802 INFO L87 Difference]: Start difference. First operand 558 states and 899 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 5 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-19 22:35:13,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:35:13,571 INFO L93 Difference]: Finished difference Result 2029 states and 3433 transitions. [2023-12-19 22:35:13,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 22:35:13,571 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 5 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) Word has length 63 [2023-12-19 22:35:13,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:35:13,585 INFO L225 Difference]: With dead ends: 2029 [2023-12-19 22:35:13,585 INFO L226 Difference]: Without dead ends: 1542 [2023-12-19 22:35:13,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:35:13,587 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 4301 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 2978 mSolverCounterSat, 1169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4392 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 4147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1169 IncrementalHoareTripleChecker+Valid, 2978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-19 22:35:13,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4392 Valid, 1416 Invalid, 4147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1169 Valid, 2978 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-19 22:35:13,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2023-12-19 22:35:13,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1061. [2023-12-19 22:35:13,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 824 states have (on average 1.6577669902912622) internal successors, (1366), 854 states have internal predecessors, (1366), 192 states have call successors, (192), 43 states have call predecessors, (192), 44 states have return successors, (194), 176 states have call predecessors, (194), 187 states have call successors, (194) [2023-12-19 22:35:13,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1752 transitions. [2023-12-19 22:35:13,764 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1752 transitions. Word has length 63 [2023-12-19 22:35:13,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:35:13,765 INFO L495 AbstractCegarLoop]: Abstraction has 1061 states and 1752 transitions. [2023-12-19 22:35:13,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 5 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-19 22:35:13,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1752 transitions. [2023-12-19 22:35:13,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-19 22:35:13,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:35:13,769 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:35:13,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 22:35:13,769 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:35:13,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:35:13,769 INFO L85 PathProgramCache]: Analyzing trace with hash -439511425, now seen corresponding path program 1 times [2023-12-19 22:35:13,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:35:13,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767493415] [2023-12-19 22:35:13,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:35:13,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:35:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:13,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:35:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:13,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:14,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:35:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:14,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:35:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:14,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:14,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:14,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:35:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:14,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:14,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:14,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:35:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:14,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 22:35:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:14,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:14,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:14,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:35:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:14,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:35:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:14,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 22:35:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:14,830 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-19 22:35:14,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:35:14,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767493415] [2023-12-19 22:35:14,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767493415] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:35:14,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988304702] [2023-12-19 22:35:14,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:35:14,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:35:14,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:35:14,843 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 22:35:14,846 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 22:35:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:15,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 22:35:15,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:35:15,283 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-19 22:35:15,283 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:35:15,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988304702] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:35:15,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:35:15,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 19 [2023-12-19 22:35:15,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227812075] [2023-12-19 22:35:15,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:35:15,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:35:15,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:35:15,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:35:15,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2023-12-19 22:35:15,285 INFO L87 Difference]: Start difference. First operand 1061 states and 1752 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 22:35:15,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:35:15,760 INFO L93 Difference]: Finished difference Result 2067 states and 3493 transitions. [2023-12-19 22:35:15,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:35:15,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 114 [2023-12-19 22:35:15,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:35:15,765 INFO L225 Difference]: With dead ends: 2067 [2023-12-19 22:35:15,766 INFO L226 Difference]: Without dead ends: 1077 [2023-12-19 22:35:15,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2023-12-19 22:35:15,769 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 830 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 2174 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 22:35:15,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 2174 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 22:35:15,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2023-12-19 22:35:15,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1077. [2023-12-19 22:35:15,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 838 states have (on average 1.6587112171837708) internal successors, (1390), 868 states have internal predecessors, (1390), 192 states have call successors, (192), 45 states have call predecessors, (192), 46 states have return successors, (196), 176 states have call predecessors, (196), 187 states have call successors, (196) [2023-12-19 22:35:15,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1778 transitions. [2023-12-19 22:35:15,911 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1778 transitions. Word has length 114 [2023-12-19 22:35:15,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:35:15,911 INFO L495 AbstractCegarLoop]: Abstraction has 1077 states and 1778 transitions. [2023-12-19 22:35:15,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 22:35:15,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1778 transitions. [2023-12-19 22:35:15,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-19 22:35:15,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:35:15,923 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:35:15,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 22:35:16,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-19 22:35:16,134 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:35:16,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:35:16,135 INFO L85 PathProgramCache]: Analyzing trace with hash -329515023, now seen corresponding path program 1 times [2023-12-19 22:35:16,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:35:16,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252099072] [2023-12-19 22:35:16,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:35:16,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:35:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:16,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:35:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:16,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:16,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:35:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:16,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:35:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:16,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:16,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:16,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:35:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:17,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:17,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:17,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:35:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:17,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 22:35:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:17,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:17,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:17,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:35:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:17,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 22:35:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:17,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 22:35:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:17,054 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-19 22:35:17,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:35:17,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252099072] [2023-12-19 22:35:17,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252099072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:35:17,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:35:17,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 22:35:17,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316761462] [2023-12-19 22:35:17,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:35:17,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 22:35:17,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:35:17,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 22:35:17,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:35:17,055 INFO L87 Difference]: Start difference. First operand 1077 states and 1778 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 6 states have internal predecessors, (80), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-19 22:35:22,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:35:22,362 INFO L93 Difference]: Finished difference Result 2588 states and 4460 transitions. [2023-12-19 22:35:22,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 22:35:22,362 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 6 states have internal predecessors, (80), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 116 [2023-12-19 22:35:22,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:35:22,369 INFO L225 Difference]: With dead ends: 2588 [2023-12-19 22:35:22,369 INFO L226 Difference]: Without dead ends: 1578 [2023-12-19 22:35:22,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2023-12-19 22:35:22,373 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 2679 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 3813 mSolverCounterSat, 895 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 4708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 895 IncrementalHoareTripleChecker+Valid, 3813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-19 22:35:22,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2690 Valid, 1862 Invalid, 4708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [895 Valid, 3813 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-19 22:35:22,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2023-12-19 22:35:22,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1087. [2023-12-19 22:35:22,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 846 states have (on average 1.6501182033096926) internal successors, (1396), 876 states have internal predecessors, (1396), 192 states have call successors, (192), 47 states have call predecessors, (192), 48 states have return successors, (198), 176 states have call predecessors, (198), 187 states have call successors, (198) [2023-12-19 22:35:22,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1786 transitions. [2023-12-19 22:35:22,533 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1786 transitions. Word has length 116 [2023-12-19 22:35:22,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:35:22,534 INFO L495 AbstractCegarLoop]: Abstraction has 1087 states and 1786 transitions. [2023-12-19 22:35:22,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 6 states have internal predecessors, (80), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-19 22:35:22,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1786 transitions. [2023-12-19 22:35:22,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-19 22:35:22,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:35:22,536 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:35:22,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-19 22:35:22,536 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:35:22,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:35:22,537 INFO L85 PathProgramCache]: Analyzing trace with hash 652200447, now seen corresponding path program 1 times [2023-12-19 22:35:22,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:35:22,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864159652] [2023-12-19 22:35:22,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:35:22,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:35:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:22,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:35:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:22,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:22,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:35:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:23,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:35:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:23,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:23,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:23,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:35:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:23,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:23,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:23,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 22:35:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:23,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-19 22:35:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:23,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:23,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:23,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 22:35:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:23,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:35:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:23,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 22:35:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:23,442 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-19 22:35:23,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:35:23,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864159652] [2023-12-19 22:35:23,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864159652] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:35:23,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:35:23,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 22:35:23,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024798168] [2023-12-19 22:35:23,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:35:23,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 22:35:23,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:35:23,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 22:35:23,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:35:23,443 INFO L87 Difference]: Start difference. First operand 1087 states and 1786 transitions. Second operand has 10 states, 10 states have (on average 8.2) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-19 22:35:29,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:35:29,249 INFO L93 Difference]: Finished difference Result 2610 states and 4468 transitions. [2023-12-19 22:35:29,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 22:35:29,259 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 118 [2023-12-19 22:35:29,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:35:29,265 INFO L225 Difference]: With dead ends: 2610 [2023-12-19 22:35:29,265 INFO L226 Difference]: Without dead ends: 1590 [2023-12-19 22:35:29,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2023-12-19 22:35:29,270 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 2224 mSDsluCounter, 1543 mSDsCounter, 0 mSdLazyCounter, 4274 mSolverCounterSat, 723 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2236 SdHoareTripleChecker+Valid, 1958 SdHoareTripleChecker+Invalid, 4997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 723 IncrementalHoareTripleChecker+Valid, 4274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-19 22:35:29,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2236 Valid, 1958 Invalid, 4997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [723 Valid, 4274 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-19 22:35:29,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2023-12-19 22:35:29,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 1099. [2023-12-19 22:35:29,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 856 states have (on average 1.6401869158878504) internal successors, (1404), 886 states have internal predecessors, (1404), 192 states have call successors, (192), 49 states have call predecessors, (192), 50 states have return successors, (200), 176 states have call predecessors, (200), 187 states have call successors, (200) [2023-12-19 22:35:29,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1796 transitions. [2023-12-19 22:35:29,437 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1796 transitions. Word has length 118 [2023-12-19 22:35:29,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:35:29,437 INFO L495 AbstractCegarLoop]: Abstraction has 1099 states and 1796 transitions. [2023-12-19 22:35:29,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-19 22:35:29,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1796 transitions. [2023-12-19 22:35:29,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-19 22:35:29,441 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:35:29,441 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:35:29,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-19 22:35:29,441 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:35:29,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:35:29,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1679534328, now seen corresponding path program 1 times [2023-12-19 22:35:29,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:35:29,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771695165] [2023-12-19 22:35:29,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:35:29,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:35:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:29,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:35:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:29,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:29,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:35:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:29,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:35:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:30,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:30,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:30,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-19 22:35:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:30,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:30,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:30,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:35:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:30,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-19 22:35:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:30,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:30,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:30,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:35:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:30,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 22:35:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:30,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:35:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:30,482 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 22:35:30,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:35:30,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771695165] [2023-12-19 22:35:30,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771695165] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:35:30,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:35:30,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-19 22:35:30,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944568393] [2023-12-19 22:35:30,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:35:30,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-19 22:35:30,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:35:30,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-19 22:35:30,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:35:30,484 INFO L87 Difference]: Start difference. First operand 1099 states and 1796 transitions. Second operand has 14 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 7 states have call successors, (16), 6 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) [2023-12-19 22:35:40,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:35:40,572 INFO L93 Difference]: Finished difference Result 3581 states and 6044 transitions. [2023-12-19 22:35:40,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-19 22:35:40,573 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 7 states have call successors, (16), 6 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) Word has length 119 [2023-12-19 22:35:40,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:35:40,582 INFO L225 Difference]: With dead ends: 3581 [2023-12-19 22:35:40,582 INFO L226 Difference]: Without dead ends: 2553 [2023-12-19 22:35:40,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=305, Invalid=1027, Unknown=0, NotChecked=0, Total=1332 [2023-12-19 22:35:40,586 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 4933 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 6983 mSolverCounterSat, 2142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4934 SdHoareTripleChecker+Valid, 2758 SdHoareTripleChecker+Invalid, 9125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2142 IncrementalHoareTripleChecker+Valid, 6983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:35:40,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4934 Valid, 2758 Invalid, 9125 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2142 Valid, 6983 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-12-19 22:35:40,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2553 states. [2023-12-19 22:35:40,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2553 to 1775. [2023-12-19 22:35:40,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1775 states, 1326 states have (on average 1.6025641025641026) internal successors, (2125), 1380 states have internal predecessors, (2125), 364 states have call successors, (364), 73 states have call predecessors, (364), 84 states have return successors, (393), 343 states have call predecessors, (393), 359 states have call successors, (393) [2023-12-19 22:35:40,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1775 states to 1775 states and 2882 transitions. [2023-12-19 22:35:40,913 INFO L78 Accepts]: Start accepts. Automaton has 1775 states and 2882 transitions. Word has length 119 [2023-12-19 22:35:40,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:35:40,913 INFO L495 AbstractCegarLoop]: Abstraction has 1775 states and 2882 transitions. [2023-12-19 22:35:40,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 7 states have call successors, (16), 6 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) [2023-12-19 22:35:40,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1775 states and 2882 transitions. [2023-12-19 22:35:40,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-19 22:35:40,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:35:40,916 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:35:40,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-19 22:35:40,916 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:35:40,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:35:40,916 INFO L85 PathProgramCache]: Analyzing trace with hash -686377863, now seen corresponding path program 1 times [2023-12-19 22:35:40,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:35:40,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125813996] [2023-12-19 22:35:40,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:35:40,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:35:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:41,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:35:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:41,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:41,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:35:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:41,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:35:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:41,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:41,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:41,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:35:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:41,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:41,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:41,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:35:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:41,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-19 22:35:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:41,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:41,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:41,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:35:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:41,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 22:35:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:41,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 22:35:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:41,757 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-19 22:35:41,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:35:41,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125813996] [2023-12-19 22:35:41,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125813996] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:35:41,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:35:41,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 22:35:41,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988246622] [2023-12-19 22:35:41,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:35:41,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 22:35:41,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:35:41,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 22:35:41,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:35:41,759 INFO L87 Difference]: Start difference. First operand 1775 states and 2882 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-19 22:35:47,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:35:47,371 INFO L93 Difference]: Finished difference Result 4147 states and 7004 transitions. [2023-12-19 22:35:47,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 22:35:47,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 120 [2023-12-19 22:35:47,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:35:47,380 INFO L225 Difference]: With dead ends: 4147 [2023-12-19 22:35:47,380 INFO L226 Difference]: Without dead ends: 2435 [2023-12-19 22:35:47,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2023-12-19 22:35:47,386 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 2253 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 4011 mSolverCounterSat, 727 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2265 SdHoareTripleChecker+Valid, 1939 SdHoareTripleChecker+Invalid, 4738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 727 IncrementalHoareTripleChecker+Valid, 4011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-19 22:35:47,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2265 Valid, 1939 Invalid, 4738 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [727 Valid, 4011 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-19 22:35:47,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2435 states. [2023-12-19 22:35:47,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2435 to 1803. [2023-12-19 22:35:47,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1803 states, 1350 states have (on average 1.5888888888888888) internal successors, (2145), 1404 states have internal predecessors, (2145), 364 states have call successors, (364), 77 states have call predecessors, (364), 88 states have return successors, (397), 343 states have call predecessors, (397), 359 states have call successors, (397) [2023-12-19 22:35:47,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 2906 transitions. [2023-12-19 22:35:47,720 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 2906 transitions. Word has length 120 [2023-12-19 22:35:47,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:35:47,720 INFO L495 AbstractCegarLoop]: Abstraction has 1803 states and 2906 transitions. [2023-12-19 22:35:47,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-19 22:35:47,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 2906 transitions. [2023-12-19 22:35:47,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-19 22:35:47,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:35:47,723 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:35:47,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-19 22:35:47,723 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:35:47,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:35:47,723 INFO L85 PathProgramCache]: Analyzing trace with hash -264065153, now seen corresponding path program 1 times [2023-12-19 22:35:47,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:35:47,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227587586] [2023-12-19 22:35:47,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:35:47,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:35:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:47,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:35:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:48,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:48,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:35:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:48,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:35:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:48,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:48,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:48,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:35:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:48,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:48,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:48,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:48,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:35:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:48,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 22:35:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:48,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:48,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:48,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:35:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:48,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:35:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:48,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 22:35:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-19 22:35:48,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:35:48,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227587586] [2023-12-19 22:35:48,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227587586] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:35:48,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26603767] [2023-12-19 22:35:48,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:35:48,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:35:48,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:35:48,801 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 22:35:48,803 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 22:35:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:49,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 1690 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 22:35:49,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:35:49,356 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-19 22:35:49,356 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:35:49,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26603767] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:35:49,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:35:49,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 19 [2023-12-19 22:35:49,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323824960] [2023-12-19 22:35:49,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:35:49,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:35:49,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:35:49,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:35:49,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2023-12-19 22:35:49,357 INFO L87 Difference]: Start difference. First operand 1803 states and 2906 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 22:35:49,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:35:49,937 INFO L93 Difference]: Finished difference Result 1908 states and 3080 transitions. [2023-12-19 22:35:49,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:35:49,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2023-12-19 22:35:49,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:35:49,952 INFO L225 Difference]: With dead ends: 1908 [2023-12-19 22:35:49,953 INFO L226 Difference]: Without dead ends: 1893 [2023-12-19 22:35:49,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2023-12-19 22:35:49,954 INFO L413 NwaCegarLoop]: 864 mSDtfsCounter, 853 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 22:35:49,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 1539 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 22:35:49,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1893 states. [2023-12-19 22:35:50,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1893 to 1809. [2023-12-19 22:35:50,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1809 states, 1356 states have (on average 1.586283185840708) internal successors, (2151), 1410 states have internal predecessors, (2151), 364 states have call successors, (364), 77 states have call predecessors, (364), 88 states have return successors, (397), 343 states have call predecessors, (397), 359 states have call successors, (397) [2023-12-19 22:35:50,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 2912 transitions. [2023-12-19 22:35:50,305 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 2912 transitions. Word has length 122 [2023-12-19 22:35:50,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:35:50,305 INFO L495 AbstractCegarLoop]: Abstraction has 1809 states and 2912 transitions. [2023-12-19 22:35:50,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-19 22:35:50,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 2912 transitions. [2023-12-19 22:35:50,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-19 22:35:50,308 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:35:50,308 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:35:50,317 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 22:35:50,513 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,SelfDestructingSolverStorable22 [2023-12-19 22:35:50,514 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:35:50,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:35:50,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1384659784, now seen corresponding path program 1 times [2023-12-19 22:35:50,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:35:50,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610776960] [2023-12-19 22:35:50,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:35:50,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:35:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:50,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:35:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:50,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:50,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:35:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:51,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:35:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:51,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:51,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:51,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:35:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:51,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:51,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:51,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:35:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:51,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 22:35:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:51,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:51,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:35:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:51,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:35:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:51,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:35:51,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:51,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 22:35:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:51,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 22:35:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:35:51,671 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-19 22:35:51,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:35:51,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610776960] [2023-12-19 22:35:51,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610776960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:35:51,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:35:51,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-19 22:35:51,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927278019] [2023-12-19 22:35:51,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:35:51,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-19 22:35:51,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:35:51,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-19 22:35:51,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:35:51,673 INFO L87 Difference]: Start difference. First operand 1809 states and 2912 transitions. Second operand has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 9 states have internal predecessors, (81), 6 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (16), 8 states have call predecessors, (16), 5 states have call successors, (16) [2023-12-19 22:36:03,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:36:03,869 INFO L93 Difference]: Finished difference Result 6048 states and 10202 transitions. [2023-12-19 22:36:03,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2023-12-19 22:36:03,869 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 9 states have internal predecessors, (81), 6 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (16), 8 states have call predecessors, (16), 5 states have call successors, (16) Word has length 127 [2023-12-19 22:36:03,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:36:03,908 INFO L225 Difference]: With dead ends: 6048 [2023-12-19 22:36:03,908 INFO L226 Difference]: Without dead ends: 6033 [2023-12-19 22:36:03,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2073 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1079, Invalid=4773, Unknown=0, NotChecked=0, Total=5852 [2023-12-19 22:36:03,914 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 8879 mSDsluCounter, 2341 mSDsCounter, 0 mSdLazyCounter, 5261 mSolverCounterSat, 3366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8886 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 8627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3366 IncrementalHoareTripleChecker+Valid, 5261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-12-19 22:36:03,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8886 Valid, 2815 Invalid, 8627 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3366 Valid, 5261 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-12-19 22:36:03,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6033 states. [2023-12-19 22:36:04,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6033 to 1955. [2023-12-19 22:36:04,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1955 states, 1470 states have (on average 1.5666666666666667) internal successors, (2303), 1524 states have internal predecessors, (2303), 380 states have call successors, (380), 93 states have call predecessors, (380), 104 states have return successors, (421), 359 states have call predecessors, (421), 375 states have call successors, (421) [2023-12-19 22:36:04,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1955 states to 1955 states and 3104 transitions. [2023-12-19 22:36:04,414 INFO L78 Accepts]: Start accepts. Automaton has 1955 states and 3104 transitions. Word has length 127 [2023-12-19 22:36:04,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:36:04,415 INFO L495 AbstractCegarLoop]: Abstraction has 1955 states and 3104 transitions. [2023-12-19 22:36:04,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 9 states have internal predecessors, (81), 6 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (16), 8 states have call predecessors, (16), 5 states have call successors, (16) [2023-12-19 22:36:04,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1955 states and 3104 transitions. [2023-12-19 22:36:04,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-19 22:36:04,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:36:04,417 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:36:04,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-19 22:36:04,418 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:36:04,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:36:04,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1252140470, now seen corresponding path program 1 times [2023-12-19 22:36:04,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:36:04,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39381319] [2023-12-19 22:36:04,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:36:04,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:36:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:04,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:36:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:04,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:04,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:36:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:05,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:36:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:05,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:05,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:05,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:36:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:05,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:05,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:05,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:36:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:05,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 22:36:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:05,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:05,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:05,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:36:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:05,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:36:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:05,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 22:36:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:05,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 22:36:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:05,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-19 22:36:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:05,540 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-19 22:36:05,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:36:05,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39381319] [2023-12-19 22:36:05,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39381319] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:36:05,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805171851] [2023-12-19 22:36:05,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:36:05,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:36:05,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:36:05,542 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 22:36:05,544 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 22:36:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:05,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 1737 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-19 22:36:05,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:36:05,994 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-19 22:36:05,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:36:05,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805171851] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:36:05,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:36:05,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 21 [2023-12-19 22:36:05,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142527069] [2023-12-19 22:36:05,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:36:05,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 22:36:05,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:36:05,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 22:36:05,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2023-12-19 22:36:05,996 INFO L87 Difference]: Start difference. First operand 1955 states and 3104 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 5 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-19 22:36:08,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:36:08,731 INFO L93 Difference]: Finished difference Result 6319 states and 10294 transitions. [2023-12-19 22:36:08,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 22:36:08,732 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 5 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 136 [2023-12-19 22:36:08,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:36:08,745 INFO L225 Difference]: With dead ends: 6319 [2023-12-19 22:36:08,745 INFO L226 Difference]: Without dead ends: 4441 [2023-12-19 22:36:08,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=108, Invalid=822, Unknown=0, NotChecked=0, Total=930 [2023-12-19 22:36:08,750 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 2166 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 3551 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2250 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 4046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 3551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-19 22:36:08,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2250 Valid, 1982 Invalid, 4046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 3551 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-19 22:36:08,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4441 states. [2023-12-19 22:36:09,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4441 to 4114. [2023-12-19 22:36:09,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4114 states, 3081 states have (on average 1.5738396624472575) internal successors, (4849), 3194 states have internal predecessors, (4849), 798 states have call successors, (798), 187 states have call predecessors, (798), 234 states have return successors, (1004), 776 states have call predecessors, (1004), 793 states have call successors, (1004) [2023-12-19 22:36:09,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4114 states to 4114 states and 6651 transitions. [2023-12-19 22:36:09,662 INFO L78 Accepts]: Start accepts. Automaton has 4114 states and 6651 transitions. Word has length 136 [2023-12-19 22:36:09,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:36:09,663 INFO L495 AbstractCegarLoop]: Abstraction has 4114 states and 6651 transitions. [2023-12-19 22:36:09,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 5 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-19 22:36:09,663 INFO L276 IsEmpty]: Start isEmpty. Operand 4114 states and 6651 transitions. [2023-12-19 22:36:09,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-19 22:36:09,665 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:36:09,666 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:36:09,676 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 22:36:09,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:36:09,873 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:36:09,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:36:09,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1678927498, now seen corresponding path program 1 times [2023-12-19 22:36:09,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:36:09,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726226618] [2023-12-19 22:36:09,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:36:09,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:36:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:36:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:36:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:36:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:36:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:36:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 22:36:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:36:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:36:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:36:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 22:36:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:36:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 22:36:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:10,686 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-19 22:36:10,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:36:10,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726226618] [2023-12-19 22:36:10,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726226618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:36:10,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:36:10,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-19 22:36:10,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554363519] [2023-12-19 22:36:10,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:36:10,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-19 22:36:10,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:36:10,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-19 22:36:10,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:36:10,694 INFO L87 Difference]: Start difference. First operand 4114 states and 6651 transitions. Second operand has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 9 states have internal predecessors, (88), 5 states have call successors, (19), 6 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2023-12-19 22:36:38,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:36:38,601 INFO L93 Difference]: Finished difference Result 25187 states and 43207 transitions. [2023-12-19 22:36:38,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2023-12-19 22:36:38,602 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 9 states have internal predecessors, (88), 5 states have call successors, (19), 6 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) Word has length 140 [2023-12-19 22:36:38,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:36:38,703 INFO L225 Difference]: With dead ends: 25187 [2023-12-19 22:36:38,704 INFO L226 Difference]: Without dead ends: 21153 [2023-12-19 22:36:38,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2953 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=1566, Invalid=6444, Unknown=0, NotChecked=0, Total=8010 [2023-12-19 22:36:38,729 INFO L413 NwaCegarLoop]: 846 mSDtfsCounter, 11451 mSDsluCounter, 4128 mSDsCounter, 0 mSdLazyCounter, 11598 mSolverCounterSat, 4393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11500 SdHoareTripleChecker+Valid, 4974 SdHoareTripleChecker+Invalid, 15991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4393 IncrementalHoareTripleChecker+Valid, 11598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2023-12-19 22:36:38,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11500 Valid, 4974 Invalid, 15991 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4393 Valid, 11598 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2023-12-19 22:36:38,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21153 states. [2023-12-19 22:36:40,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21153 to 5306. [2023-12-19 22:36:40,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5306 states, 4003 states have (on average 1.5700724456657507) internal successors, (6285), 4124 states have internal predecessors, (6285), 986 states have call successors, (986), 257 states have call predecessors, (986), 316 states have return successors, (1238), 968 states have call predecessors, (1238), 981 states have call successors, (1238) [2023-12-19 22:36:40,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5306 states to 5306 states and 8509 transitions. [2023-12-19 22:36:40,340 INFO L78 Accepts]: Start accepts. Automaton has 5306 states and 8509 transitions. Word has length 140 [2023-12-19 22:36:40,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:36:40,341 INFO L495 AbstractCegarLoop]: Abstraction has 5306 states and 8509 transitions. [2023-12-19 22:36:40,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 9 states have internal predecessors, (88), 5 states have call successors, (19), 6 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2023-12-19 22:36:40,341 INFO L276 IsEmpty]: Start isEmpty. Operand 5306 states and 8509 transitions. [2023-12-19 22:36:40,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-19 22:36:40,343 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:36:40,343 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:36:40,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-19 22:36:40,344 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:36:40,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:36:40,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1244232500, now seen corresponding path program 1 times [2023-12-19 22:36:40,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:36:40,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999109786] [2023-12-19 22:36:40,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:36:40,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:36:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:40,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:36:40,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:40,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:40,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:36:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:41,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:36:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:41,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:41,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:41,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:36:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:41,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:41,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:41,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:36:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:41,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 22:36:41,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:41,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:41,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:41,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:36:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:41,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:36:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:41,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:36:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:41,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 22:36:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:41,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:36:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:41,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 22:36:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:41,662 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-19 22:36:41,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:36:41,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999109786] [2023-12-19 22:36:41,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999109786] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:36:41,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626003013] [2023-12-19 22:36:41,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:36:41,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:36:41,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:36:41,663 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 22:36:41,681 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 22:36:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:41,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 1752 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 22:36:41,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:36:42,006 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-19 22:36:42,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:36:42,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626003013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:36:42,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:36:42,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [22] total 24 [2023-12-19 22:36:42,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113252766] [2023-12-19 22:36:42,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:36:42,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:36:42,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:36:42,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:36:42,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2023-12-19 22:36:42,008 INFO L87 Difference]: Start difference. First operand 5306 states and 8509 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 22:36:43,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:36:43,995 INFO L93 Difference]: Finished difference Result 5569 states and 8993 transitions. [2023-12-19 22:36:43,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:36:43,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2023-12-19 22:36:43,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:36:44,021 INFO L225 Difference]: With dead ends: 5569 [2023-12-19 22:36:44,021 INFO L226 Difference]: Without dead ends: 5554 [2023-12-19 22:36:44,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2023-12-19 22:36:44,026 INFO L413 NwaCegarLoop]: 916 mSDtfsCounter, 48 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 2681 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:36:44,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 2681 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 22:36:44,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5554 states. [2023-12-19 22:36:45,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5554 to 5338. [2023-12-19 22:36:45,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 4035 states have (on average 1.565551425030979) internal successors, (6317), 4156 states have internal predecessors, (6317), 986 states have call successors, (986), 257 states have call predecessors, (986), 316 states have return successors, (1238), 968 states have call predecessors, (1238), 981 states have call successors, (1238) [2023-12-19 22:36:45,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 8541 transitions. [2023-12-19 22:36:45,465 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 8541 transitions. Word has length 140 [2023-12-19 22:36:45,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:36:45,465 INFO L495 AbstractCegarLoop]: Abstraction has 5338 states and 8541 transitions. [2023-12-19 22:36:45,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 22:36:45,466 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 8541 transitions. [2023-12-19 22:36:45,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-19 22:36:45,471 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:36:45,471 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:36:45,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 22:36:45,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-19 22:36:45,680 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:36:45,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:36:45,680 INFO L85 PathProgramCache]: Analyzing trace with hash 957567555, now seen corresponding path program 1 times [2023-12-19 22:36:45,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:36:45,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972909915] [2023-12-19 22:36:45,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:36:45,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:36:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:36:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:36:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:36:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:36:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:36:46,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 22:36:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:36:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:36:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:36:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:36:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 22:36:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:36:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 22:36:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:36:46,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 22:36:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-19 22:36:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 22:36:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:46,993 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-19 22:36:46,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:36:46,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972909915] [2023-12-19 22:36:46,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972909915] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:36:46,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217949543] [2023-12-19 22:36:46,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:36:46,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:36:46,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:36:46,994 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:36:47,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 22:36:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:36:47,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 1857 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-19 22:36:47,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:36:47,516 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 69 proven. 6 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-19 22:36:47,516 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 22:36:47,983 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-12-19 22:36:47,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217949543] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 22:36:47,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 22:36:47,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 9, 8] total 29 [2023-12-19 22:36:47,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416990692] [2023-12-19 22:36:47,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 22:36:47,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-19 22:36:47,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:36:47,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-19 22:36:47,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=718, Unknown=0, NotChecked=0, Total=812 [2023-12-19 22:36:47,986 INFO L87 Difference]: Start difference. First operand 5338 states and 8541 transitions. Second operand has 29 states, 28 states have (on average 8.321428571428571) internal successors, (233), 20 states have internal predecessors, (233), 10 states have call successors, (56), 9 states have call predecessors, (56), 15 states have return successors, (56), 16 states have call predecessors, (56), 9 states have call successors, (56) [2023-12-19 22:37:25,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:37:25,341 INFO L93 Difference]: Finished difference Result 27808 states and 47598 transitions. [2023-12-19 22:37:25,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-12-19 22:37:25,342 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 8.321428571428571) internal successors, (233), 20 states have internal predecessors, (233), 10 states have call successors, (56), 9 states have call predecessors, (56), 15 states have return successors, (56), 16 states have call predecessors, (56), 9 states have call successors, (56) Word has length 183 [2023-12-19 22:37:25,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:37:25,431 INFO L225 Difference]: With dead ends: 27808 [2023-12-19 22:37:25,432 INFO L226 Difference]: Without dead ends: 22541 [2023-12-19 22:37:25,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 412 SyntacticMatches, 1 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4105 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=1869, Invalid=11937, Unknown=0, NotChecked=0, Total=13806 [2023-12-19 22:37:25,471 INFO L413 NwaCegarLoop]: 1265 mSDtfsCounter, 9258 mSDsluCounter, 13685 mSDsCounter, 0 mSdLazyCounter, 41510 mSolverCounterSat, 3444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9258 SdHoareTripleChecker+Valid, 14950 SdHoareTripleChecker+Invalid, 44954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 3444 IncrementalHoareTripleChecker+Valid, 41510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2023-12-19 22:37:25,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9258 Valid, 14950 Invalid, 44954 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [3444 Valid, 41510 Invalid, 0 Unknown, 0 Unchecked, 20.4s Time] [2023-12-19 22:37:25,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22541 states. [2023-12-19 22:37:30,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22541 to 17936. [2023-12-19 22:37:30,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17936 states, 13383 states have (on average 1.5614585668385266) internal successors, (20897), 13812 states have internal predecessors, (20897), 3494 states have call successors, (3494), 743 states have call predecessors, (3494), 1058 states have return successors, (4860), 3552 states have call predecessors, (4860), 3489 states have call successors, (4860) [2023-12-19 22:37:30,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17936 states to 17936 states and 29251 transitions. [2023-12-19 22:37:30,814 INFO L78 Accepts]: Start accepts. Automaton has 17936 states and 29251 transitions. Word has length 183 [2023-12-19 22:37:30,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:37:30,814 INFO L495 AbstractCegarLoop]: Abstraction has 17936 states and 29251 transitions. [2023-12-19 22:37:30,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 8.321428571428571) internal successors, (233), 20 states have internal predecessors, (233), 10 states have call successors, (56), 9 states have call predecessors, (56), 15 states have return successors, (56), 16 states have call predecessors, (56), 9 states have call successors, (56) [2023-12-19 22:37:30,814 INFO L276 IsEmpty]: Start isEmpty. Operand 17936 states and 29251 transitions. [2023-12-19 22:37:30,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-19 22:37:30,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:37:30,831 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:37:30,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 22:37:31,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-12-19 22:37:31,039 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:37:31,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:37:31,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1231934450, now seen corresponding path program 1 times [2023-12-19 22:37:31,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:37:31,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521113556] [2023-12-19 22:37:31,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:37:31,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:37:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:37:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:37:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:37:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:37:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:37:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:37:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:37:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:37:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:37:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:37:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 22:37:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:37:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:37:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:37:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:37:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:37:31,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 22:37:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:37:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 22:37:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:37:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 22:37:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-19 22:37:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 22:37:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:31,715 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-12-19 22:37:31,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:37:31,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521113556] [2023-12-19 22:37:31,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521113556] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:37:31,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:37:31,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-19 22:37:31,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839412446] [2023-12-19 22:37:31,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:37:31,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 22:37:31,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:37:31,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 22:37:31,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-19 22:37:31,718 INFO L87 Difference]: Start difference. First operand 17936 states and 29251 transitions. Second operand has 11 states, 10 states have (on average 10.5) internal successors, (105), 6 states have internal predecessors, (105), 3 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-19 22:37:43,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:37:43,668 INFO L93 Difference]: Finished difference Result 33445 states and 55773 transitions. [2023-12-19 22:37:43,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-19 22:37:43,668 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.5) internal successors, (105), 6 states have internal predecessors, (105), 3 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 183 [2023-12-19 22:37:43,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:37:43,770 INFO L225 Difference]: With dead ends: 33445 [2023-12-19 22:37:43,770 INFO L226 Difference]: Without dead ends: 22137 [2023-12-19 22:37:43,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2023-12-19 22:37:43,806 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 1898 mSDsluCounter, 2558 mSDsCounter, 0 mSdLazyCounter, 5413 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1986 SdHoareTripleChecker+Valid, 3005 SdHoareTripleChecker+Invalid, 5897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 5413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-19 22:37:43,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1986 Valid, 3005 Invalid, 5897 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [484 Valid, 5413 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-19 22:37:43,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22137 states. [2023-12-19 22:37:49,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22137 to 17942. [2023-12-19 22:37:49,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17942 states, 13389 states have (on average 1.5612069609380834) internal successors, (20903), 13818 states have internal predecessors, (20903), 3494 states have call successors, (3494), 743 states have call predecessors, (3494), 1058 states have return successors, (4860), 3552 states have call predecessors, (4860), 3489 states have call successors, (4860) [2023-12-19 22:37:49,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17942 states to 17942 states and 29257 transitions. [2023-12-19 22:37:49,165 INFO L78 Accepts]: Start accepts. Automaton has 17942 states and 29257 transitions. Word has length 183 [2023-12-19 22:37:49,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:37:49,165 INFO L495 AbstractCegarLoop]: Abstraction has 17942 states and 29257 transitions. [2023-12-19 22:37:49,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.5) internal successors, (105), 6 states have internal predecessors, (105), 3 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-19 22:37:49,166 INFO L276 IsEmpty]: Start isEmpty. Operand 17942 states and 29257 transitions. [2023-12-19 22:37:49,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-19 22:37:49,181 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:37:49,181 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:37:49,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-19 22:37:49,181 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:37:49,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:37:49,182 INFO L85 PathProgramCache]: Analyzing trace with hash -808819034, now seen corresponding path program 1 times [2023-12-19 22:37:49,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:37:49,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822372498] [2023-12-19 22:37:49,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:37:49,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:37:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:37:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:37:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:37:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 22:37:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:37:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:37:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:37:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:37:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:37:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:37:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 22:37:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:37:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:37:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:37:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:37:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:37:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 22:37:49,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:37:49,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 22:37:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:37:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 22:37:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-19 22:37:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 22:37:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:37:49,934 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-12-19 22:37:49,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:37:49,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822372498] [2023-12-19 22:37:49,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822372498] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:37:49,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:37:49,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-19 22:37:49,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182777348] [2023-12-19 22:37:49,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:37:49,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 22:37:49,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:37:49,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 22:37:49,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-19 22:37:49,937 INFO L87 Difference]: Start difference. First operand 17942 states and 29257 transitions. Second operand has 11 states, 10 states have (on average 11.1) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (23), 6 states have call predecessors, (23), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-19 22:38:00,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:38:00,403 INFO L93 Difference]: Finished difference Result 25819 states and 42806 transitions. [2023-12-19 22:38:00,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 22:38:00,404 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.1) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (23), 6 states have call predecessors, (23), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 189 [2023-12-19 22:38:00,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:38:00,491 INFO L225 Difference]: With dead ends: 25819 [2023-12-19 22:38:00,491 INFO L226 Difference]: Without dead ends: 13933 [2023-12-19 22:38:00,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2023-12-19 22:38:00,559 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 1898 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 5413 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1984 SdHoareTripleChecker+Valid, 3033 SdHoareTripleChecker+Invalid, 5877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 5413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-19 22:38:00,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1984 Valid, 3033 Invalid, 5877 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [464 Valid, 5413 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-19 22:38:00,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13933 states. [2023-12-19 22:38:04,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13933 to 11316. [2023-12-19 22:38:04,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11316 states, 8452 states have (on average 1.5657832465688595) internal successors, (13234), 8741 states have internal predecessors, (13234), 2192 states have call successors, (2192), 490 states have call predecessors, (2192), 671 states have return successors, (2975), 2192 states have call predecessors, (2975), 2187 states have call successors, (2975) [2023-12-19 22:38:04,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11316 states to 11316 states and 18401 transitions. [2023-12-19 22:38:04,298 INFO L78 Accepts]: Start accepts. Automaton has 11316 states and 18401 transitions. Word has length 189 [2023-12-19 22:38:04,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:38:04,298 INFO L495 AbstractCegarLoop]: Abstraction has 11316 states and 18401 transitions. [2023-12-19 22:38:04,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.1) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (23), 6 states have call predecessors, (23), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-19 22:38:04,299 INFO L276 IsEmpty]: Start isEmpty. Operand 11316 states and 18401 transitions. [2023-12-19 22:38:04,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-19 22:38:04,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:38:04,309 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:38:04,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-19 22:38:04,309 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:38:04,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:38:04,309 INFO L85 PathProgramCache]: Analyzing trace with hash 735598583, now seen corresponding path program 1 times [2023-12-19 22:38:04,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:38:04,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685742301] [2023-12-19 22:38:04,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:38:04,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:38:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:04,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:38:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:04,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:04,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:38:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:04,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:38:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:38:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:38:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 22:38:05,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:38:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 22:38:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:38:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 22:38:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-19 22:38:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:38:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-19 22:38:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 22:38:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-19 22:38:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-19 22:38:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:05,629 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-12-19 22:38:05,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:38:05,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685742301] [2023-12-19 22:38:05,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685742301] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:38:05,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:38:05,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-19 22:38:05,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134029557] [2023-12-19 22:38:05,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:38:05,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-19 22:38:05,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:38:05,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-19 22:38:05,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-12-19 22:38:05,631 INFO L87 Difference]: Start difference. First operand 11316 states and 18401 transitions. Second operand has 15 states, 14 states have (on average 7.857142857142857) internal successors, (110), 9 states have internal predecessors, (110), 3 states have call successors, (24), 6 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2023-12-19 22:38:18,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:38:18,503 INFO L93 Difference]: Finished difference Result 26661 states and 44861 transitions. [2023-12-19 22:38:18,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-19 22:38:18,504 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.857142857142857) internal successors, (110), 9 states have internal predecessors, (110), 3 states have call successors, (24), 6 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 193 [2023-12-19 22:38:18,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:38:18,561 INFO L225 Difference]: With dead ends: 26661 [2023-12-19 22:38:18,561 INFO L226 Difference]: Without dead ends: 15392 [2023-12-19 22:38:18,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=163, Invalid=829, Unknown=0, NotChecked=0, Total=992 [2023-12-19 22:38:18,591 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 1267 mSDsluCounter, 3891 mSDsCounter, 0 mSdLazyCounter, 8502 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 4297 SdHoareTripleChecker+Invalid, 9002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 8502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:38:18,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 4297 Invalid, 9002 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [500 Valid, 8502 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-19 22:38:18,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15392 states. [2023-12-19 22:38:21,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15392 to 10892. [2023-12-19 22:38:21,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10892 states, 8121 states have (on average 1.5645856421622952) internal successors, (12706), 8420 states have internal predecessors, (12706), 2078 states have call successors, (2078), 489 states have call predecessors, (2078), 692 states have return successors, (2782), 2090 states have call predecessors, (2782), 2073 states have call successors, (2782) [2023-12-19 22:38:21,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10892 states to 10892 states and 17566 transitions. [2023-12-19 22:38:21,799 INFO L78 Accepts]: Start accepts. Automaton has 10892 states and 17566 transitions. Word has length 193 [2023-12-19 22:38:21,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:38:21,799 INFO L495 AbstractCegarLoop]: Abstraction has 10892 states and 17566 transitions. [2023-12-19 22:38:21,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.857142857142857) internal successors, (110), 9 states have internal predecessors, (110), 3 states have call successors, (24), 6 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2023-12-19 22:38:21,799 INFO L276 IsEmpty]: Start isEmpty. Operand 10892 states and 17566 transitions. [2023-12-19 22:38:21,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-12-19 22:38:21,805 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:38:21,805 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:38:21,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-19 22:38:21,806 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:38:21,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:38:21,806 INFO L85 PathProgramCache]: Analyzing trace with hash -727274089, now seen corresponding path program 1 times [2023-12-19 22:38:21,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:38:21,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777029099] [2023-12-19 22:38:21,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:38:21,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:38:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:38:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:38:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:38:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:38:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:38:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:38:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:38:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 22:38:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 22:38:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 22:38:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 22:38:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-19 22:38:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 22:38:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-19 22:38:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 22:38:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-19 22:38:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:38:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:38:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 22:38:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:38:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 22:38:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:38:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:38:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:38:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:22,729 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 4 proven. 29 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-12-19 22:38:22,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:38:22,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777029099] [2023-12-19 22:38:22,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777029099] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:38:22,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796176409] [2023-12-19 22:38:22,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:38:22,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:38:22,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:38:22,731 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:38:22,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 22:38:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:23,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 2597 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:38:23,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:38:23,193 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2023-12-19 22:38:23,193 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:38:23,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796176409] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:38:23,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:38:23,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2023-12-19 22:38:23,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117628687] [2023-12-19 22:38:23,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:38:23,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 22:38:23,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:38:23,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 22:38:23,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:38:23,195 INFO L87 Difference]: Start difference. First operand 10892 states and 17566 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-19 22:38:28,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:38:28,186 INFO L93 Difference]: Finished difference Result 27921 states and 45576 transitions. [2023-12-19 22:38:28,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 22:38:28,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 271 [2023-12-19 22:38:28,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:38:28,293 INFO L225 Difference]: With dead ends: 27921 [2023-12-19 22:38:28,293 INFO L226 Difference]: Without dead ends: 17064 [2023-12-19 22:38:28,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:38:28,335 INFO L413 NwaCegarLoop]: 972 mSDtfsCounter, 824 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:38:28,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 1756 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 22:38:28,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17064 states. [2023-12-19 22:38:33,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17064 to 17062. [2023-12-19 22:38:33,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17062 states, 12694 states have (on average 1.557034819599811) internal successors, (19765), 13179 states have internal predecessors, (19765), 3276 states have call successors, (3276), 773 states have call predecessors, (3276), 1091 states have return successors, (4675), 3325 states have call predecessors, (4675), 3271 states have call successors, (4675) [2023-12-19 22:38:33,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17062 states to 17062 states and 27716 transitions. [2023-12-19 22:38:33,238 INFO L78 Accepts]: Start accepts. Automaton has 17062 states and 27716 transitions. Word has length 271 [2023-12-19 22:38:33,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:38:33,239 INFO L495 AbstractCegarLoop]: Abstraction has 17062 states and 27716 transitions. [2023-12-19 22:38:33,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-19 22:38:33,239 INFO L276 IsEmpty]: Start isEmpty. Operand 17062 states and 27716 transitions. [2023-12-19 22:38:33,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2023-12-19 22:38:33,244 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:38:33,245 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:38:33,252 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-19 22:38:33,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:38:33,453 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:38:33,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:38:33,453 INFO L85 PathProgramCache]: Analyzing trace with hash -655744352, now seen corresponding path program 1 times [2023-12-19 22:38:33,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:38:33,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648054950] [2023-12-19 22:38:33,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:38:33,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:38:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:33,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:38:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:33,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:33,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:38:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:33,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:38:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:34,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:38:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:38:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:38:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:38:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 22:38:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 22:38:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 22:38:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 22:38:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-19 22:38:34,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 22:38:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-19 22:38:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 22:38:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-19 22:38:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:38:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:38:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:38:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:38:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 22:38:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 22:38:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:38:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 22:38:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 22:38:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 22:38:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:38:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-19 22:38:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-19 22:38:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-19 22:38:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-19 22:38:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-19 22:38:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:34,576 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 4 proven. 75 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-19 22:38:34,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:38:34,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648054950] [2023-12-19 22:38:34,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648054950] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:38:34,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607202695] [2023-12-19 22:38:34,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:38:34,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:38:34,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:38:34,577 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:38:34,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 22:38:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:35,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 2990 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:38:35,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:38:35,073 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-12-19 22:38:35,074 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:38:35,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607202695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:38:35,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:38:35,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2023-12-19 22:38:35,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239331595] [2023-12-19 22:38:35,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:38:35,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:38:35,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:38:35,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:38:35,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-12-19 22:38:35,075 INFO L87 Difference]: Start difference. First operand 17062 states and 27716 transitions. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 2 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-19 22:38:40,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:38:40,047 INFO L93 Difference]: Finished difference Result 34551 states and 56912 transitions. [2023-12-19 22:38:40,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:38:40,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 2 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 328 [2023-12-19 22:38:40,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:38:40,109 INFO L225 Difference]: With dead ends: 34551 [2023-12-19 22:38:40,109 INFO L226 Difference]: Without dead ends: 17530 [2023-12-19 22:38:40,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-12-19 22:38:40,153 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 213 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:38:40,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2262 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:38:40,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17530 states. [2023-12-19 22:38:45,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17530 to 17530. [2023-12-19 22:38:45,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17530 states, 13150 states have (on average 1.569657794676806) internal successors, (20641), 13635 states have internal predecessors, (20641), 3276 states have call successors, (3276), 785 states have call predecessors, (3276), 1103 states have return successors, (4675), 3325 states have call predecessors, (4675), 3271 states have call successors, (4675) [2023-12-19 22:38:45,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17530 states to 17530 states and 28592 transitions. [2023-12-19 22:38:45,153 INFO L78 Accepts]: Start accepts. Automaton has 17530 states and 28592 transitions. Word has length 328 [2023-12-19 22:38:45,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:38:45,154 INFO L495 AbstractCegarLoop]: Abstraction has 17530 states and 28592 transitions. [2023-12-19 22:38:45,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 2 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-19 22:38:45,154 INFO L276 IsEmpty]: Start isEmpty. Operand 17530 states and 28592 transitions. [2023-12-19 22:38:45,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2023-12-19 22:38:45,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:38:45,160 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 10, 10, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:38:45,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 22:38:45,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:38:45,369 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:38:45,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:38:45,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1273971215, now seen corresponding path program 1 times [2023-12-19 22:38:45,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:38:45,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923410244] [2023-12-19 22:38:45,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:38:45,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:38:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:45,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:38:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:45,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:45,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:38:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:45,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:38:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:45,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:45,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:38:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:38:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:38:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:38:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:38:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 22:38:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 22:38:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:38:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 22:38:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 22:38:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 22:38:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 22:38:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-19 22:38:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:38:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:38:46,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:46,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:38:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:38:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:38:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 22:38:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:38:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 22:38:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 22:38:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:38:46,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:38:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 22:38:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-19 22:38:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 22:38:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 22:38:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-19 22:38:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,363 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 42 proven. 54 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-12-19 22:38:46,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:38:46,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923410244] [2023-12-19 22:38:46,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923410244] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:38:46,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880462315] [2023-12-19 22:38:46,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:38:46,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:38:46,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:38:46,365 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:38:46,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 22:38:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:46,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 2999 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:38:46,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:38:46,884 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2023-12-19 22:38:46,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:38:46,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880462315] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:38:46,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:38:46,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-12-19 22:38:46,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743075898] [2023-12-19 22:38:46,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:38:46,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:38:46,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:38:46,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:38:46,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-12-19 22:38:46,888 INFO L87 Difference]: Start difference. First operand 17530 states and 28592 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-19 22:38:51,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:38:51,858 INFO L93 Difference]: Finished difference Result 35487 states and 58616 transitions. [2023-12-19 22:38:51,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:38:51,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 337 [2023-12-19 22:38:51,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:38:51,922 INFO L225 Difference]: With dead ends: 35487 [2023-12-19 22:38:51,922 INFO L226 Difference]: Without dead ends: 17998 [2023-12-19 22:38:51,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-12-19 22:38:51,966 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 211 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:38:51,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2262 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:38:51,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17998 states. [2023-12-19 22:38:56,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17998 to 17998. [2023-12-19 22:38:56,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17998 states, 13606 states have (on average 1.5814346611788916) internal successors, (21517), 14091 states have internal predecessors, (21517), 3276 states have call successors, (3276), 797 states have call predecessors, (3276), 1115 states have return successors, (4675), 3325 states have call predecessors, (4675), 3271 states have call successors, (4675) [2023-12-19 22:38:56,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17998 states to 17998 states and 29468 transitions. [2023-12-19 22:38:56,880 INFO L78 Accepts]: Start accepts. Automaton has 17998 states and 29468 transitions. Word has length 337 [2023-12-19 22:38:56,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:38:56,881 INFO L495 AbstractCegarLoop]: Abstraction has 17998 states and 29468 transitions. [2023-12-19 22:38:56,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-19 22:38:56,881 INFO L276 IsEmpty]: Start isEmpty. Operand 17998 states and 29468 transitions. [2023-12-19 22:38:56,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2023-12-19 22:38:56,887 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:38:56,888 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 10, 8, 8, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:38:56,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 22:38:57,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-12-19 22:38:57,096 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:38:57,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:38:57,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1736411507, now seen corresponding path program 1 times [2023-12-19 22:38:57,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:38:57,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973026795] [2023-12-19 22:38:57,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:38:57,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:38:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:38:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:38:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:38:57,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:38:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:38:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:38:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:38:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:38:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:38:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 22:38:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 22:38:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-19 22:38:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-19 22:38:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-19 22:38:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-19 22:38:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-19 22:38:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:38:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:38:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:38:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:38:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:38:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:57,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:38:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:58,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:38:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:58,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 22:38:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:58,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 22:38:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:58,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 22:38:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:58,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:38:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:58,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 22:38:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:58,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:38:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:58,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 22:38:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:58,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-19 22:38:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:58,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 22:38:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:58,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-19 22:38:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:58,095 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 27 proven. 48 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2023-12-19 22:38:58,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:38:58,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973026795] [2023-12-19 22:38:58,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973026795] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:38:58,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772547740] [2023-12-19 22:38:58,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:38:58,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:38:58,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:38:58,097 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:38:58,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 22:38:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:38:58,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 3008 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:38:58,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:38:58,595 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 279 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2023-12-19 22:38:58,595 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:38:58,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772547740] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:38:58,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:38:58,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 19 [2023-12-19 22:38:58,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000615742] [2023-12-19 22:38:58,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:38:58,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:38:58,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:38:58,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:38:58,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-12-19 22:38:58,597 INFO L87 Difference]: Start difference. First operand 17998 states and 29468 transitions. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-19 22:39:03,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:39:03,742 INFO L93 Difference]: Finished difference Result 36423 states and 60320 transitions. [2023-12-19 22:39:03,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:39:03,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 346 [2023-12-19 22:39:03,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:39:03,831 INFO L225 Difference]: With dead ends: 36423 [2023-12-19 22:39:03,832 INFO L226 Difference]: Without dead ends: 18466 [2023-12-19 22:39:03,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-12-19 22:39:03,880 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 209 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:39:03,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2262 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:39:03,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18466 states. [2023-12-19 22:39:08,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18466 to 18466. [2023-12-19 22:39:08,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18466 states, 14062 states have (on average 1.5924477314748968) internal successors, (22393), 14547 states have internal predecessors, (22393), 3276 states have call successors, (3276), 809 states have call predecessors, (3276), 1127 states have return successors, (4675), 3325 states have call predecessors, (4675), 3271 states have call successors, (4675) [2023-12-19 22:39:08,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18466 states to 18466 states and 30344 transitions. [2023-12-19 22:39:08,779 INFO L78 Accepts]: Start accepts. Automaton has 18466 states and 30344 transitions. Word has length 346 [2023-12-19 22:39:08,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:39:08,779 INFO L495 AbstractCegarLoop]: Abstraction has 18466 states and 30344 transitions. [2023-12-19 22:39:08,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-19 22:39:08,779 INFO L276 IsEmpty]: Start isEmpty. Operand 18466 states and 30344 transitions. [2023-12-19 22:39:08,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2023-12-19 22:39:08,787 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:39:08,787 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 10, 8, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:39:08,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-19 22:39:08,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-12-19 22:39:08,993 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:39:08,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:39:08,993 INFO L85 PathProgramCache]: Analyzing trace with hash 2057037153, now seen corresponding path program 1 times [2023-12-19 22:39:08,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:39:08,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116048949] [2023-12-19 22:39:08,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:39:08,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:39:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:09,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:39:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:09,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:09,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:39:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:09,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:39:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:09,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:09,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:09,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:39:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:39:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:39:10,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:39:10,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:39:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:39:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:39:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 22:39:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-19 22:39:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 22:39:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-19 22:39:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-19 22:39:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-19 22:39:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:39:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:39:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:39:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:39:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:39:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:39:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:39:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:39:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:39:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-19 22:39:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:39:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:39:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 22:39:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-19 22:39:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-19 22:39:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-19 22:39:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,203 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 26 proven. 43 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2023-12-19 22:39:10,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:39:10,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116048949] [2023-12-19 22:39:10,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116048949] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:39:10,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037813454] [2023-12-19 22:39:10,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:39:10,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:39:10,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:39:10,205 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:39:10,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-19 22:39:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:10,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 3013 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:39:10,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:39:10,664 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2023-12-19 22:39:10,664 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:39:10,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037813454] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:39:10,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:39:10,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2023-12-19 22:39:10,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625420736] [2023-12-19 22:39:10,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:39:10,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:39:10,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:39:10,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:39:10,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2023-12-19 22:39:10,665 INFO L87 Difference]: Start difference. First operand 18466 states and 30344 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-19 22:39:15,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:39:15,698 INFO L93 Difference]: Finished difference Result 37359 states and 62024 transitions. [2023-12-19 22:39:15,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:39:15,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 351 [2023-12-19 22:39:15,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:39:15,759 INFO L225 Difference]: With dead ends: 37359 [2023-12-19 22:39:15,759 INFO L226 Difference]: Without dead ends: 18934 [2023-12-19 22:39:15,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2023-12-19 22:39:15,799 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 207 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:39:15,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2262 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:39:15,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18934 states. [2023-12-19 22:39:20,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18934 to 18934. [2023-12-19 22:39:20,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18934 states, 14518 states have (on average 1.6027689764430362) internal successors, (23269), 15003 states have internal predecessors, (23269), 3276 states have call successors, (3276), 821 states have call predecessors, (3276), 1139 states have return successors, (4675), 3325 states have call predecessors, (4675), 3271 states have call successors, (4675) [2023-12-19 22:39:20,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18934 states to 18934 states and 31220 transitions. [2023-12-19 22:39:20,588 INFO L78 Accepts]: Start accepts. Automaton has 18934 states and 31220 transitions. Word has length 351 [2023-12-19 22:39:20,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:39:20,589 INFO L495 AbstractCegarLoop]: Abstraction has 18934 states and 31220 transitions. [2023-12-19 22:39:20,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-19 22:39:20,589 INFO L276 IsEmpty]: Start isEmpty. Operand 18934 states and 31220 transitions. [2023-12-19 22:39:20,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-12-19 22:39:20,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:39:20,597 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:39:20,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-19 22:39:20,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-12-19 22:39:20,806 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:39:20,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:39:20,806 INFO L85 PathProgramCache]: Analyzing trace with hash 394730621, now seen corresponding path program 1 times [2023-12-19 22:39:20,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:39:20,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401400784] [2023-12-19 22:39:20,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:39:20,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:39:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:39:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:39:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:39:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:39:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:39:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:39:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:39:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:39:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:39:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:39:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:39:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:39:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 22:39:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-19 22:39:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-19 22:39:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 22:39:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:39:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:39:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:39:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:39:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:39:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:39:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:39:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:39:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:39:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-19 22:39:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:39:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:39:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 22:39:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-19 22:39:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-19 22:39:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-19 22:39:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:21,847 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 15 proven. 93 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-12-19 22:39:21,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:39:21,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401400784] [2023-12-19 22:39:21,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401400784] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:39:21,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262471761] [2023-12-19 22:39:21,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:39:21,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:39:21,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:39:21,849 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:39:21,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-19 22:39:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:22,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 3005 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:39:22,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:39:22,330 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-12-19 22:39:22,330 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:39:22,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262471761] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:39:22,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:39:22,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2023-12-19 22:39:22,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327308219] [2023-12-19 22:39:22,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:39:22,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:39:22,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:39:22,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:39:22,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-12-19 22:39:22,332 INFO L87 Difference]: Start difference. First operand 18934 states and 31220 transitions. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 3 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2023-12-19 22:39:27,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:39:27,295 INFO L93 Difference]: Finished difference Result 33493 states and 55836 transitions. [2023-12-19 22:39:27,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:39:27,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 3 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 355 [2023-12-19 22:39:27,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:39:27,349 INFO L225 Difference]: With dead ends: 33493 [2023-12-19 22:39:27,349 INFO L226 Difference]: Without dead ends: 19414 [2023-12-19 22:39:27,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-12-19 22:39:27,379 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 210 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2261 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:39:27,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2261 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:39:27,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19414 states. [2023-12-19 22:39:32,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19414 to 19414. [2023-12-19 22:39:32,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19414 states, 14968 states have (on average 1.6127071084981293) internal successors, (24139), 15453 states have internal predecessors, (24139), 3288 states have call successors, (3288), 833 states have call predecessors, (3288), 1157 states have return successors, (4693), 3343 states have call predecessors, (4693), 3283 states have call successors, (4693) [2023-12-19 22:39:32,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19414 states to 19414 states and 32120 transitions. [2023-12-19 22:39:32,253 INFO L78 Accepts]: Start accepts. Automaton has 19414 states and 32120 transitions. Word has length 355 [2023-12-19 22:39:32,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:39:32,255 INFO L495 AbstractCegarLoop]: Abstraction has 19414 states and 32120 transitions. [2023-12-19 22:39:32,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 3 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2023-12-19 22:39:32,255 INFO L276 IsEmpty]: Start isEmpty. Operand 19414 states and 32120 transitions. [2023-12-19 22:39:32,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-12-19 22:39:32,263 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:39:32,263 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:39:32,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-19 22:39:32,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-12-19 22:39:32,472 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:39:32,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:39:32,472 INFO L85 PathProgramCache]: Analyzing trace with hash 2095355494, now seen corresponding path program 1 times [2023-12-19 22:39:32,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:39:32,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576653716] [2023-12-19 22:39:32,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:39:32,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:39:32,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:32,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:39:32,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:32,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:32,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:39:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:39:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:39:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:39:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:33,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:39:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:39:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:39:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:39:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:39:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:39:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:39:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 22:39:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-19 22:39:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-19 22:39:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 22:39:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:39:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:39:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:39:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:39:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:39:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:39:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-19 22:39:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 22:39:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-19 22:39:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 22:39:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:39:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:39:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-19 22:39:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-19 22:39:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-19 22:39:33,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-19 22:39:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:33,657 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 15 proven. 93 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-12-19 22:39:33,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:39:33,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576653716] [2023-12-19 22:39:33,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576653716] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:39:33,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841170684] [2023-12-19 22:39:33,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:39:33,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:39:33,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:39:33,658 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:39:33,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-19 22:39:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:34,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 3006 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:39:34,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:39:34,164 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-12-19 22:39:34,164 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:39:34,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841170684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:39:34,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:39:34,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2023-12-19 22:39:34,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694512012] [2023-12-19 22:39:34,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:39:34,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:39:34,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:39:34,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:39:34,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-12-19 22:39:34,165 INFO L87 Difference]: Start difference. First operand 19414 states and 32120 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 3 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2023-12-19 22:39:39,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:39:39,263 INFO L93 Difference]: Finished difference Result 34281 states and 57268 transitions. [2023-12-19 22:39:39,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:39:39,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 3 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 356 [2023-12-19 22:39:39,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:39:39,325 INFO L225 Difference]: With dead ends: 34281 [2023-12-19 22:39:39,326 INFO L226 Difference]: Without dead ends: 19894 [2023-12-19 22:39:39,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-12-19 22:39:39,359 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 208 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2261 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:39:39,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2261 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:39:39,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19894 states. [2023-12-19 22:39:44,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19894 to 19894. [2023-12-19 22:39:44,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19894 states, 15418 states have (on average 1.6220651186924373) internal successors, (25009), 15903 states have internal predecessors, (25009), 3300 states have call successors, (3300), 845 states have call predecessors, (3300), 1175 states have return successors, (4711), 3361 states have call predecessors, (4711), 3295 states have call successors, (4711) [2023-12-19 22:39:44,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19894 states to 19894 states and 33020 transitions. [2023-12-19 22:39:44,571 INFO L78 Accepts]: Start accepts. Automaton has 19894 states and 33020 transitions. Word has length 356 [2023-12-19 22:39:44,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:39:44,572 INFO L495 AbstractCegarLoop]: Abstraction has 19894 states and 33020 transitions. [2023-12-19 22:39:44,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 3 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2023-12-19 22:39:44,572 INFO L276 IsEmpty]: Start isEmpty. Operand 19894 states and 33020 transitions. [2023-12-19 22:39:44,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-12-19 22:39:44,581 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:39:44,581 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:39:44,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-19 22:39:44,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-12-19 22:39:44,790 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:39:44,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:39:44,791 INFO L85 PathProgramCache]: Analyzing trace with hash -843172325, now seen corresponding path program 1 times [2023-12-19 22:39:44,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:39:44,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980376638] [2023-12-19 22:39:44,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:39:44,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:39:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:39:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:39:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:39:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:39:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:39:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:39:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:39:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:39:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:39:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:39:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:39:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:39:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 22:39:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-19 22:39:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-19 22:39:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 22:39:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:39:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:39:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:39:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:39:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:39:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:39:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:39:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 22:39:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-19 22:39:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-19 22:39:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 22:39:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:39:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-19 22:39:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-19 22:39:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-19 22:39:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-19 22:39:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:45,794 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 15 proven. 93 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-12-19 22:39:45,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:39:45,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980376638] [2023-12-19 22:39:45,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980376638] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:39:45,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300506964] [2023-12-19 22:39:45,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:39:45,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:39:45,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:39:45,795 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:39:45,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-19 22:39:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:46,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 3007 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:39:46,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:39:46,277 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2023-12-19 22:39:46,277 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:39:46,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300506964] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:39:46,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:39:46,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2023-12-19 22:39:46,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749913840] [2023-12-19 22:39:46,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:39:46,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:39:46,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:39:46,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:39:46,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-12-19 22:39:46,278 INFO L87 Difference]: Start difference. First operand 19894 states and 33020 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2023-12-19 22:39:51,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:39:51,178 INFO L93 Difference]: Finished difference Result 35069 states and 58700 transitions. [2023-12-19 22:39:51,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:39:51,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 357 [2023-12-19 22:39:51,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:39:51,242 INFO L225 Difference]: With dead ends: 35069 [2023-12-19 22:39:51,243 INFO L226 Difference]: Without dead ends: 20374 [2023-12-19 22:39:51,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-12-19 22:39:51,282 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 206 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2261 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:39:51,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2261 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:39:51,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20374 states. [2023-12-19 22:39:56,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20374 to 20374. [2023-12-19 22:39:56,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20374 states, 15868 states have (on average 1.6308923619863878) internal successors, (25879), 16353 states have internal predecessors, (25879), 3312 states have call successors, (3312), 857 states have call predecessors, (3312), 1193 states have return successors, (4729), 3379 states have call predecessors, (4729), 3307 states have call successors, (4729) [2023-12-19 22:39:56,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20374 states to 20374 states and 33920 transitions. [2023-12-19 22:39:56,219 INFO L78 Accepts]: Start accepts. Automaton has 20374 states and 33920 transitions. Word has length 357 [2023-12-19 22:39:56,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:39:56,219 INFO L495 AbstractCegarLoop]: Abstraction has 20374 states and 33920 transitions. [2023-12-19 22:39:56,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2023-12-19 22:39:56,219 INFO L276 IsEmpty]: Start isEmpty. Operand 20374 states and 33920 transitions. [2023-12-19 22:39:56,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2023-12-19 22:39:56,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:39:56,227 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:39:56,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-12-19 22:39:56,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-12-19 22:39:56,428 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:39:56,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:39:56,429 INFO L85 PathProgramCache]: Analyzing trace with hash -880635159, now seen corresponding path program 1 times [2023-12-19 22:39:56,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:39:56,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228157442] [2023-12-19 22:39:56,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:39:56,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:39:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:56,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:39:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:56,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:56,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:39:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:39:57,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:39:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:39:57,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:39:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:39:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:39:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:39:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:39:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:39:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:39:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 22:39:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-19 22:39:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-19 22:39:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 22:39:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:39:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:57,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:57,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:39:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:39:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:39:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:39:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:39:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:39:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:39:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:39:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-19 22:39:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-19 22:39:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-19 22:39:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-19 22:39:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:39:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-19 22:39:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-19 22:39:57,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-19 22:39:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:57,764 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 15 proven. 93 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-12-19 22:39:57,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:39:57,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228157442] [2023-12-19 22:39:57,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228157442] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:39:57,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835396933] [2023-12-19 22:39:57,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:39:57,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:39:57,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:39:57,767 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:39:57,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-19 22:39:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:39:58,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 3005 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-19 22:39:58,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:39:58,610 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 105 proven. 3 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-12-19 22:39:58,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 22:39:59,685 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2023-12-19 22:39:59,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835396933] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 22:39:59,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 22:39:59,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 10] total 28 [2023-12-19 22:39:59,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522993270] [2023-12-19 22:39:59,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 22:39:59,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-19 22:39:59,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:39:59,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-19 22:39:59,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2023-12-19 22:39:59,688 INFO L87 Difference]: Start difference. First operand 20374 states and 33920 transitions. Second operand has 28 states, 28 states have (on average 15.428571428571429) internal successors, (432), 22 states have internal predecessors, (432), 14 states have call successors, (103), 12 states have call predecessors, (103), 13 states have return successors, (106), 13 states have call predecessors, (106), 14 states have call successors, (106) [2023-12-19 22:41:29,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:41:29,361 INFO L93 Difference]: Finished difference Result 131621 states and 269467 transitions. [2023-12-19 22:41:29,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2023-12-19 22:41:29,362 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 15.428571428571429) internal successors, (432), 22 states have internal predecessors, (432), 14 states have call successors, (103), 12 states have call predecessors, (103), 13 states have return successors, (106), 13 states have call predecessors, (106), 14 states have call successors, (106) Word has length 359 [2023-12-19 22:41:29,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:41:30,598 INFO L225 Difference]: With dead ends: 131621 [2023-12-19 22:41:30,598 INFO L226 Difference]: Without dead ends: 106932 [2023-12-19 22:41:30,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1130 GetRequests, 917 SyntacticMatches, 3 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18992 ImplicationChecksByTransitivity, 20.1s TimeCoverageRelationStatistics Valid=5214, Invalid=39518, Unknown=0, NotChecked=0, Total=44732 [2023-12-19 22:41:30,879 INFO L413 NwaCegarLoop]: 982 mSDtfsCounter, 17042 mSDsluCounter, 14122 mSDsCounter, 0 mSdLazyCounter, 28179 mSolverCounterSat, 8744 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17144 SdHoareTripleChecker+Valid, 15104 SdHoareTripleChecker+Invalid, 36923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 8744 IncrementalHoareTripleChecker+Valid, 28179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:41:30,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17144 Valid, 15104 Invalid, 36923 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [8744 Valid, 28179 Invalid, 0 Unknown, 0 Unchecked, 25.9s Time] [2023-12-19 22:41:30,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106932 states. [2023-12-19 22:41:51,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106932 to 61221. [2023-12-19 22:41:51,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61221 states, 46435 states have (on average 1.5796059007214385) internal successors, (73349), 48192 states have internal predecessors, (73349), 11037 states have call successors, (11037), 2759 states have call predecessors, (11037), 3748 states have return successors, (17623), 11217 states have call predecessors, (17623), 11032 states have call successors, (17623) [2023-12-19 22:41:51,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61221 states to 61221 states and 102009 transitions. [2023-12-19 22:41:51,717 INFO L78 Accepts]: Start accepts. Automaton has 61221 states and 102009 transitions. Word has length 359 [2023-12-19 22:41:51,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:41:51,717 INFO L495 AbstractCegarLoop]: Abstraction has 61221 states and 102009 transitions. [2023-12-19 22:41:51,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 15.428571428571429) internal successors, (432), 22 states have internal predecessors, (432), 14 states have call successors, (103), 12 states have call predecessors, (103), 13 states have return successors, (106), 13 states have call predecessors, (106), 14 states have call successors, (106) [2023-12-19 22:41:51,718 INFO L276 IsEmpty]: Start isEmpty. Operand 61221 states and 102009 transitions. [2023-12-19 22:41:51,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2023-12-19 22:41:51,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:41:51,724 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 10, 8, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:41:51,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-19 22:41:51,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:41:51,933 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:41:51,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:41:51,933 INFO L85 PathProgramCache]: Analyzing trace with hash -2033419340, now seen corresponding path program 1 times [2023-12-19 22:41:51,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:41:51,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520106762] [2023-12-19 22:41:51,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:41:51,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:41:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:41:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:41:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:41:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:41:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:41:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:41:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:41:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:41:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:41:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:41:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:41:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:41:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:41:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:41:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:41:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:41:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:41:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:41:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-19 22:41:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-19 22:41:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-19 22:41:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 22:41:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:41:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:41:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:41:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:41:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:41:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:41:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:41:52,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:41:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:41:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:41:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:41:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:41:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-19 22:41:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 22:41:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:52,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-19 22:41:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:53,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-19 22:41:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:53,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:41:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:53,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 22:41:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:53,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-19 22:41:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:53,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-19 22:41:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:53,022 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 75 proven. 41 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-19 22:41:53,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:41:53,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520106762] [2023-12-19 22:41:53,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520106762] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:41:53,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371984810] [2023-12-19 22:41:53,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:41:53,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:41:53,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:41:53,023 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:41:53,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-19 22:41:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:41:53,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 3016 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:41:53,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:41:53,782 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-19 22:41:53,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:41:53,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371984810] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:41:53,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:41:53,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 19 [2023-12-19 22:41:53,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517881447] [2023-12-19 22:41:53,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:41:53,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:41:53,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:41:53,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:41:53,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-12-19 22:41:53,783 INFO L87 Difference]: Start difference. First operand 61221 states and 102009 transitions. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-12-19 22:42:12,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:42:12,641 INFO L93 Difference]: Finished difference Result 123703 states and 208277 transitions. [2023-12-19 22:42:12,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:42:12,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 358 [2023-12-19 22:42:12,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:42:12,902 INFO L225 Difference]: With dead ends: 123703 [2023-12-19 22:42:12,902 INFO L226 Difference]: Without dead ends: 62523 [2023-12-19 22:42:13,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-12-19 22:42:13,084 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 205 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:42:13,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 2262 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:42:13,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62523 states. [2023-12-19 22:42:31,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62523 to 62523. [2023-12-19 22:42:31,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62523 states, 47695 states have (on average 1.5878184296047804) internal successors, (75731), 49452 states have internal predecessors, (75731), 11037 states have call successors, (11037), 2801 states have call predecessors, (11037), 3790 states have return successors, (17623), 11217 states have call predecessors, (17623), 11032 states have call successors, (17623) [2023-12-19 22:42:32,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62523 states to 62523 states and 104391 transitions. [2023-12-19 22:42:32,181 INFO L78 Accepts]: Start accepts. Automaton has 62523 states and 104391 transitions. Word has length 358 [2023-12-19 22:42:32,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:42:32,181 INFO L495 AbstractCegarLoop]: Abstraction has 62523 states and 104391 transitions. [2023-12-19 22:42:32,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-12-19 22:42:32,181 INFO L276 IsEmpty]: Start isEmpty. Operand 62523 states and 104391 transitions. [2023-12-19 22:42:32,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2023-12-19 22:42:32,189 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:42:32,189 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 10, 8, 6, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:42:32,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-19 22:42:32,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:42:32,390 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:42:32,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:42:32,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1501680436, now seen corresponding path program 1 times [2023-12-19 22:42:32,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:42:32,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871512744] [2023-12-19 22:42:32,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:42:32,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:42:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:32,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:42:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:32,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:42:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:32,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:42:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:32,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:42:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:32,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:42:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:42:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:42:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:42:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:42:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:42:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:42:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:42:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:42:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:42:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:42:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:42:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:42:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:42:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-19 22:42:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-19 22:42:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-19 22:42:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-19 22:42:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:42:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:42:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:42:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:42:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:42:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:42:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:42:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:42:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:42:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:42:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:42:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:42:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-19 22:42:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 22:42:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-19 22:42:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-19 22:42:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:42:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 22:42:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-19 22:42:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-19 22:42:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,404 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 3 proven. 58 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2023-12-19 22:42:33,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:42:33,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871512744] [2023-12-19 22:42:33,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871512744] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:42:33,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526300821] [2023-12-19 22:42:33,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:42:33,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:42:33,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:42:33,405 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:42:33,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-19 22:42:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:42:33,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 3018 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:42:33,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:42:33,907 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2023-12-19 22:42:33,907 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:42:33,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526300821] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:42:33,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:42:33,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2023-12-19 22:42:33,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070587267] [2023-12-19 22:42:33,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:42:33,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:42:33,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:42:33,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:42:33,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-12-19 22:42:33,909 INFO L87 Difference]: Start difference. First operand 62523 states and 104391 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-19 22:42:52,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:42:52,910 INFO L93 Difference]: Finished difference Result 125383 states and 212493 transitions. [2023-12-19 22:42:52,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:42:52,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 360 [2023-12-19 22:42:52,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:42:53,158 INFO L225 Difference]: With dead ends: 125383 [2023-12-19 22:42:53,159 INFO L226 Difference]: Without dead ends: 62901 [2023-12-19 22:42:53,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-12-19 22:42:53,336 INFO L413 NwaCegarLoop]: 804 mSDtfsCounter, 38 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 2387 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:42:53,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 2387 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:42:53,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62901 states. [2023-12-19 22:43:11,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62901 to 62901. [2023-12-19 22:43:11,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62901 states, 48031 states have (on average 1.5889529678749141) internal successors, (76319), 49788 states have internal predecessors, (76319), 11037 states have call successors, (11037), 2843 states have call predecessors, (11037), 3832 states have return successors, (17623), 11217 states have call predecessors, (17623), 11032 states have call successors, (17623) [2023-12-19 22:43:11,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62901 states to 62901 states and 104979 transitions. [2023-12-19 22:43:11,889 INFO L78 Accepts]: Start accepts. Automaton has 62901 states and 104979 transitions. Word has length 360 [2023-12-19 22:43:11,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:43:11,889 INFO L495 AbstractCegarLoop]: Abstraction has 62901 states and 104979 transitions. [2023-12-19 22:43:11,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-19 22:43:11,889 INFO L276 IsEmpty]: Start isEmpty. Operand 62901 states and 104979 transitions. [2023-12-19 22:43:11,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2023-12-19 22:43:11,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:43:11,895 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 10, 8, 6, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:43:11,904 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-12-19 22:43:12,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:43:12,104 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:43:12,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:43:12,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1321402984, now seen corresponding path program 1 times [2023-12-19 22:43:12,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:43:12,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650258717] [2023-12-19 22:43:12,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:43:12,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:43:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:12,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:43:12,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:12,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:12,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:43:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:12,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:43:12,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:12,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:12,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:43:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:13,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:13,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:43:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:43:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:43:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:43:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:43:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:43:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:43:13,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:43:13,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-19 22:43:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-19 22:43:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-19 22:43:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-19 22:43:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:43:13,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:43:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:13,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:43:13,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:43:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:43:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:43:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:43:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:43:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-19 22:43:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 22:43:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-19 22:43:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-19 22:43:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:43:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-19 22:43:13,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-19 22:43:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 22:43:13,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,264 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 3 proven. 58 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2023-12-19 22:43:13,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:43:13,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650258717] [2023-12-19 22:43:13,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650258717] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:43:13,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616674971] [2023-12-19 22:43:13,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:43:13,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:43:13,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:43:13,267 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:43:13,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-19 22:43:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:13,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 3019 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:43:13,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:43:13,764 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2023-12-19 22:43:13,764 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:43:13,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616674971] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:43:13,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:43:13,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2023-12-19 22:43:13,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589431839] [2023-12-19 22:43:13,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:43:13,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:43:13,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:43:13,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:43:13,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-12-19 22:43:13,765 INFO L87 Difference]: Start difference. First operand 62901 states and 104979 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-19 22:43:32,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:43:32,912 INFO L93 Difference]: Finished difference Result 126139 states and 213385 transitions. [2023-12-19 22:43:32,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:43:32,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 361 [2023-12-19 22:43:32,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:43:33,183 INFO L225 Difference]: With dead ends: 126139 [2023-12-19 22:43:33,183 INFO L226 Difference]: Without dead ends: 63279 [2023-12-19 22:43:33,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-12-19 22:43:33,389 INFO L413 NwaCegarLoop]: 804 mSDtfsCounter, 36 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2387 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:43:33,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2387 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:43:33,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63279 states. [2023-12-19 22:43:52,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63279 to 63279. [2023-12-19 22:43:52,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63279 states, 48367 states have (on average 1.590071743130647) internal successors, (76907), 50124 states have internal predecessors, (76907), 11037 states have call successors, (11037), 2885 states have call predecessors, (11037), 3874 states have return successors, (17623), 11217 states have call predecessors, (17623), 11032 states have call successors, (17623) [2023-12-19 22:43:52,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63279 states to 63279 states and 105567 transitions. [2023-12-19 22:43:52,432 INFO L78 Accepts]: Start accepts. Automaton has 63279 states and 105567 transitions. Word has length 361 [2023-12-19 22:43:52,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:43:52,432 INFO L495 AbstractCegarLoop]: Abstraction has 63279 states and 105567 transitions. [2023-12-19 22:43:52,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-19 22:43:52,432 INFO L276 IsEmpty]: Start isEmpty. Operand 63279 states and 105567 transitions. [2023-12-19 22:43:52,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2023-12-19 22:43:52,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:43:52,438 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 10, 8, 6, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:43:52,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-19 22:43:52,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:43:52,647 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:43:52,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:43:52,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1491704120, now seen corresponding path program 1 times [2023-12-19 22:43:52,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:43:52,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548049761] [2023-12-19 22:43:52,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:43:52,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:43:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:52,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:43:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:52,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:52,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:43:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:43:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:43:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:43:53,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:53,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:43:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:43:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:43:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:43:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:43:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:43:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:43:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-19 22:43:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-19 22:43:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-19 22:43:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-19 22:43:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:43:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:43:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:43:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:43:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:43:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:43:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:43:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:43:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:43:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-19 22:43:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:53,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 22:43:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:54,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 22:43:54,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:54,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-19 22:43:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:54,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:43:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:54,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-19 22:43:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:54,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-19 22:43:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:54,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-19 22:43:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:54,041 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 3 proven. 58 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2023-12-19 22:43:54,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:43:54,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548049761] [2023-12-19 22:43:54,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548049761] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:43:54,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531038935] [2023-12-19 22:43:54,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:43:54,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:43:54,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:43:54,042 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:43:54,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-19 22:43:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:43:54,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 3020 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:43:54,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:43:54,565 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2023-12-19 22:43:54,565 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:43:54,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531038935] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:43:54,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:43:54,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2023-12-19 22:43:54,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51076842] [2023-12-19 22:43:54,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:43:54,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:43:54,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:43:54,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:43:54,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-12-19 22:43:54,566 INFO L87 Difference]: Start difference. First operand 63279 states and 105567 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-19 22:44:14,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:44:14,005 INFO L93 Difference]: Finished difference Result 126895 states and 214277 transitions. [2023-12-19 22:44:14,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:44:14,006 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 362 [2023-12-19 22:44:14,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:44:14,488 INFO L225 Difference]: With dead ends: 126895 [2023-12-19 22:44:14,488 INFO L226 Difference]: Without dead ends: 63657 [2023-12-19 22:44:14,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-12-19 22:44:14,813 INFO L413 NwaCegarLoop]: 804 mSDtfsCounter, 34 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 2387 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 22:44:14,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 2387 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:44:14,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63657 states. [2023-12-19 22:44:33,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63657 to 63657. [2023-12-19 22:44:33,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63657 states, 48703 states have (on average 1.5911750816171488) internal successors, (77495), 50460 states have internal predecessors, (77495), 11037 states have call successors, (11037), 2927 states have call predecessors, (11037), 3916 states have return successors, (17623), 11217 states have call predecessors, (17623), 11032 states have call successors, (17623) [2023-12-19 22:44:34,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63657 states to 63657 states and 106155 transitions. [2023-12-19 22:44:34,155 INFO L78 Accepts]: Start accepts. Automaton has 63657 states and 106155 transitions. Word has length 362 [2023-12-19 22:44:34,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:44:34,156 INFO L495 AbstractCegarLoop]: Abstraction has 63657 states and 106155 transitions. [2023-12-19 22:44:34,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-19 22:44:34,156 INFO L276 IsEmpty]: Start isEmpty. Operand 63657 states and 106155 transitions. [2023-12-19 22:44:34,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2023-12-19 22:44:34,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:44:34,162 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 10, 8, 6, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:44:34,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-19 22:44:34,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:44:34,370 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:44:34,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:44:34,371 INFO L85 PathProgramCache]: Analyzing trace with hash -585022063, now seen corresponding path program 1 times [2023-12-19 22:44:34,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:44:34,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129292429] [2023-12-19 22:44:34,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:44:34,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:44:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:34,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:44:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:34,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:44:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:34,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:44:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:44:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:44:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:44:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:44:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:44:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:44:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:44:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:44:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:44:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:44:35,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:44:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:44:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:44:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:44:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:44:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-19 22:44:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-19 22:44:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-19 22:44:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-19 22:44:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:44:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:44:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:44:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:44:35,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:44:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:44:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:44:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:44:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:44:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-19 22:44:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 22:44:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 22:44:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 22:44:35,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:44:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 22:44:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 22:44:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-19 22:44:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-19 22:44:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-19 22:44:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-19 22:44:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:35,718 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 3 proven. 58 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2023-12-19 22:44:35,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:44:35,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129292429] [2023-12-19 22:44:35,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129292429] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:44:35,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386675189] [2023-12-19 22:44:35,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:44:35,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:44:35,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:44:35,719 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:44:35,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-19 22:44:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:44:36,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 3021 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-19 22:44:36,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:44:36,243 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-12-19 22:44:36,243 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:44:36,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386675189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:44:36,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:44:36,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2023-12-19 22:44:36,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555315194] [2023-12-19 22:44:36,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:44:36,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:44:36,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:44:36,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:44:36,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-12-19 22:44:36,245 INFO L87 Difference]: Start difference. First operand 63657 states and 106155 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-12-19 22:44:55,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:44:55,362 INFO L93 Difference]: Finished difference Result 111434 states and 187872 transitions. [2023-12-19 22:44:55,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:44:55,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 359 [2023-12-19 22:44:55,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:44:55,613 INFO L225 Difference]: With dead ends: 111434 [2023-12-19 22:44:55,613 INFO L226 Difference]: Without dead ends: 63965 [2023-12-19 22:44:55,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-12-19 22:44:55,919 INFO L413 NwaCegarLoop]: 815 mSDtfsCounter, 36 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2431 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:44:55,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2431 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 22:44:55,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63965 states. [2023-12-19 22:45:14,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63965 to 63965. [2023-12-19 22:45:14,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63965 states, 48955 states have (on average 1.5915636809314677) internal successors, (77915), 50712 states have internal predecessors, (77915), 11065 states have call successors, (11065), 2955 states have call predecessors, (11065), 3944 states have return successors, (17651), 11245 states have call predecessors, (17651), 11060 states have call successors, (17651) [2023-12-19 22:45:14,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63965 states to 63965 states and 106631 transitions. [2023-12-19 22:45:14,942 INFO L78 Accepts]: Start accepts. Automaton has 63965 states and 106631 transitions. Word has length 359 [2023-12-19 22:45:14,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:45:14,942 INFO L495 AbstractCegarLoop]: Abstraction has 63965 states and 106631 transitions. [2023-12-19 22:45:14,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-12-19 22:45:14,943 INFO L276 IsEmpty]: Start isEmpty. Operand 63965 states and 106631 transitions. [2023-12-19 22:45:14,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-12-19 22:45:14,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:45:14,949 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 10, 8, 6, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:45:14,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-19 22:45:15,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:45:15,158 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:45:15,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:45:15,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1913181475, now seen corresponding path program 1 times [2023-12-19 22:45:15,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:45:15,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103182711] [2023-12-19 22:45:15,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:45:15,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:45:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:15,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:45:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:15,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:45:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:15,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:45:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:15,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:45:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:15,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:45:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:15,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:45:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:45:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:45:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:45:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:45:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:45:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:45:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:45:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:45:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:45:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:45:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:45:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:45:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-19 22:45:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-19 22:45:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-19 22:45:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-19 22:45:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:45:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:45:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:45:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:45:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:45:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:45:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:45:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:45:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:45:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 22:45:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 22:45:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 22:45:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 22:45:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 22:45:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 22:45:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:45:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 22:45:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-19 22:45:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-19 22:45:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-19 22:45:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,242 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 3 proven. 58 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2023-12-19 22:45:16,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:45:16,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103182711] [2023-12-19 22:45:16,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103182711] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:45:16,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362521023] [2023-12-19 22:45:16,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:45:16,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:45:16,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:45:16,243 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 22:45:16,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-19 22:45:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:45:16,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 3019 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-19 22:45:16,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:45:17,115 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2023-12-19 22:45:17,115 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 22:45:17,446 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2023-12-19 22:45:17,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362521023] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 22:45:17,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 22:45:17,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 7] total 23 [2023-12-19 22:45:17,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180429549] [2023-12-19 22:45:17,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 22:45:17,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-19 22:45:17,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:45:17,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-19 22:45:17,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2023-12-19 22:45:17,454 INFO L87 Difference]: Start difference. First operand 63965 states and 106631 transitions. Second operand has 23 states, 22 states have (on average 15.363636363636363) internal successors, (338), 16 states have internal predecessors, (338), 7 states have call successors, (78), 9 states have call predecessors, (78), 7 states have return successors, (73), 8 states have call predecessors, (73), 7 states have call successors, (73) [2023-12-19 22:46:47,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:46:47,009 INFO L93 Difference]: Finished difference Result 188000 states and 394009 transitions. [2023-12-19 22:46:47,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 203 states. [2023-12-19 22:46:47,010 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 15.363636363636363) internal successors, (338), 16 states have internal predecessors, (338), 7 states have call successors, (78), 9 states have call predecessors, (78), 7 states have return successors, (73), 8 states have call predecessors, (73), 7 states have call successors, (73) Word has length 357 [2023-12-19 22:46:47,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:46:48,678 INFO L225 Difference]: With dead ends: 188000 [2023-12-19 22:46:48,678 INFO L226 Difference]: Without dead ends: 124070 [2023-12-19 22:46:49,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1058 GetRequests, 838 SyntacticMatches, 0 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20475 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=5716, Invalid=43346, Unknown=0, NotChecked=0, Total=49062 [2023-12-19 22:46:49,402 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 7582 mSDsluCounter, 5270 mSDsCounter, 0 mSdLazyCounter, 12273 mSolverCounterSat, 4176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7622 SdHoareTripleChecker+Valid, 5792 SdHoareTripleChecker+Invalid, 16449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4176 IncrementalHoareTripleChecker+Valid, 12273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-12-19 22:46:49,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7622 Valid, 5792 Invalid, 16449 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4176 Valid, 12273 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time] [2023-12-19 22:46:49,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124070 states. [2023-12-19 22:47:15,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124070 to 69313. [2023-12-19 22:47:15,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69313 states, 53423 states have (on average 1.5480223873612489) internal successors, (82700), 55138 states have internal predecessors, (82700), 11733 states have call successors, (11733), 3195 states have call predecessors, (11733), 4156 states have return successors, (20240), 11927 states have call predecessors, (20240), 11728 states have call successors, (20240) [2023-12-19 22:47:15,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69313 states to 69313 states and 114673 transitions. [2023-12-19 22:47:15,615 INFO L78 Accepts]: Start accepts. Automaton has 69313 states and 114673 transitions. Word has length 357 [2023-12-19 22:47:15,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:47:15,615 INFO L495 AbstractCegarLoop]: Abstraction has 69313 states and 114673 transitions. [2023-12-19 22:47:15,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 15.363636363636363) internal successors, (338), 16 states have internal predecessors, (338), 7 states have call successors, (78), 9 states have call predecessors, (78), 7 states have return successors, (73), 8 states have call predecessors, (73), 7 states have call successors, (73) [2023-12-19 22:47:15,616 INFO L276 IsEmpty]: Start isEmpty. Operand 69313 states and 114673 transitions. [2023-12-19 22:47:15,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-12-19 22:47:15,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:47:15,627 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:47:15,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-19 22:47:16,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-12-19 22:47:16,009 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:47:16,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:47:16,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1547820595, now seen corresponding path program 1 times [2023-12-19 22:47:16,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:47:16,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098141509] [2023-12-19 22:47:16,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:47:16,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Received shutdown request... [2023-12-19 22:47:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-19 22:47:16,031 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 22:47:16,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-19 22:47:16,032 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 243 with TraceHistMax 6,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [1098141509] and IpTcStrategyModuleZ3 [936670840]. [2023-12-19 22:47:16,034 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:47:16,036 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 22:47:16,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 10:47:16 BoogieIcfgContainer [2023-12-19 22:47:16,037 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 22:47:16,037 INFO L158 Benchmark]: Toolchain (without parser) took 803170.19ms. Allocated memory was 274.7MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 221.1MB in the beginning and 4.7GB in the end (delta: -4.4GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2023-12-19 22:47:16,037 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 201.3MB. Free memory is still 152.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 22:47:16,037 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.62ms. Allocated memory is still 274.7MB. Free memory was 221.0MB in the beginning and 234.3MB in the end (delta: -13.3MB). Peak memory consumption was 46.4MB. Max. memory is 8.0GB. [2023-12-19 22:47:16,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.25ms. Allocated memory is still 274.7MB. Free memory was 234.3MB in the beginning and 228.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-19 22:47:16,038 INFO L158 Benchmark]: Boogie Preprocessor took 108.38ms. Allocated memory is still 274.7MB. Free memory was 228.0MB in the beginning and 220.1MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-19 22:47:16,038 INFO L158 Benchmark]: RCFGBuilder took 980.06ms. Allocated memory is still 274.7MB. Free memory was 219.6MB in the beginning and 116.9MB in the end (delta: 102.8MB). Peak memory consumption was 102.8MB. Max. memory is 8.0GB. [2023-12-19 22:47:16,038 INFO L158 Benchmark]: TraceAbstraction took 801424.69ms. Allocated memory was 274.7MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 116.3MB in the beginning and 4.7GB in the end (delta: -4.5GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2023-12-19 22:47:16,041 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 201.3MB. Free memory is still 152.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 586.62ms. Allocated memory is still 274.7MB. Free memory was 221.0MB in the beginning and 234.3MB in the end (delta: -13.3MB). Peak memory consumption was 46.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 66.25ms. Allocated memory is still 274.7MB. Free memory was 234.3MB in the beginning and 228.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 108.38ms. Allocated memory is still 274.7MB. Free memory was 228.0MB in the beginning and 220.1MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 980.06ms. Allocated memory is still 274.7MB. Free memory was 219.6MB in the beginning and 116.9MB in the end (delta: 102.8MB). Peak memory consumption was 102.8MB. Max. memory is 8.0GB. * TraceAbstraction took 801424.69ms. Allocated memory was 274.7MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 116.3MB in the beginning and 4.7GB in the end (delta: -4.5GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [48] - GenericResultAtLocation [Line: 1664]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1664] - GenericResultAtLocation [Line: 1702]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1702] - GenericResultAtLocation [Line: 1711]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1711] - GenericResultAtLocation [Line: 2373]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2373] - GenericResultAtLocation [Line: 2387]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2387] - GenericResultAtLocation [Line: 2506]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2506] - GenericResultAtLocation [Line: 2859]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2859] - GenericResultAtLocation [Line: 3225]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3225] - GenericResultAtLocation [Line: 3316]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [3316] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 1707]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1707). Cancelled while NwaCegarLoop was analyzing trace of length 243 with TraceHistMax 6,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [1098141509] and IpTcStrategyModuleZ3 [936670840]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 26 procedures, 556 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 801.4s, OverallIterations: 47, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 537.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 99598 SdHoareTripleChecker+Valid, 166.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 97560 mSDsluCounter, 122781 SdHoareTripleChecker+Invalid, 151.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 96958 mSDsCounter, 35191 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 199775 IncrementalHoareTripleChecker+Invalid, 234966 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35191 mSolverCounterUnsat, 25823 mSDtfsCounter, 199775 mSolverCounterSat, 1.9s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10264 GetRequests, 8973 SyntacticMatches, 4 SemanticMatches, 1287 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50397 ImplicationChecksByTransitivity, 110.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69313occurred in iteration=46, InterpolantAutomatonStates: 1007, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 206.3s AutomataMinimizationTime, 46 MinimizatonAttempts, 142488 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.7s SsaConstructionTime, 5.5s SatisfiabilityAnalysisTime, 43.1s InterpolantComputationTime, 14105 NumberOfCodeBlocks, 14105 NumberOfCodeBlocksAsserted, 66 NumberOfCheckSat, 14935 ConstructedInterpolants, 0 QuantifiedInterpolants, 58966 SizeOfPredicates, 30 NumberOfNonLiveVariables, 53461 ConjunctsInSsa, 112 ConjunctsInUnsatCore, 69 InterpolantComputations, 43 PerfectInterpolantSequences, 15928/16952 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2023-12-19 22:47:16,060 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end